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/****************************************************************
* *
* Copyright (c) 2001-2018 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include <stddef.h> /* for offsetof macro */
#include "gtm_string.h"
#include "gtm_time.h"
#include "gtm_fcntl.h"
#include "gtm_stdio.h"
#include "gtm_unistd.h"
#include "cdb_sc.h"
#include "gdsroot.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "gdsblk.h"
#include "gdskill.h"
#include "gdscc.h"
#include "min_max.h" /* needed for gdsblkops.h and MAX macro used below */
#include "gdsblkops.h"
#include "filestruct.h"
#include "iosp.h"
#include "jnl.h"
#include "hashtab_int4.h" /* needed for tp.h */
#include "buddy_list.h" /* needed for tp.h */
#include "tp.h"
#include "gtm_stdlib.h" /* for ATOI */
#include "gtmimagename.h"
#include "cryptdef.h"
#include "mlkdef.h"
#include "error.h"
#include "gt_timer.h"
#include "trans_log_name.h"
#include "gtm_logicals.h"
#include "dbfilop.h"
#include "set_num_additional_processors.h"
#include "have_crit.h"
#include "t_retry.h"
#include "dpgbldir.h"
#include "longset.h" /* needed for cws_insert.h */
#include "cws_insert.h" /* for CWS_INIT macro */
#include "gvcst_protos.h" /* for gvcst_init,gvcst_init_sysops,gvcst_tp_init prototype */
#include "compswap.h"
#include "send_msg.h"
#include "targ_alloc.h" /* for "targ_free" prototype */
#include "hashtab_mname.h" /* for CWS_INIT macro */
#include "process_gvt_pending_list.h"
#include "gvt_hashtab.h"
#include "gtmmsg.h"
#include "op.h"
#include "set_gbuff_limit.h"
#include "gtm_reservedDB.h"
#include "anticipatory_freeze.h"
#include "wbox_test_init.h"
#include "ftok_sems.h"
#include "util.h"
#include "getzposition.h"
#include "gtmio.h"
#include "io.h"
#include "ipcrmid.h"
#include "gtm_ipc.h"
#include "gtm_semutils.h"
#include "gtm_sem.h"
#include "is_file_identical.h"
#ifdef GTM_FD_TRACE
#include "gtm_dbjnl_dupfd_check.h"
#endif
/* Deferred database encryption initialization. Check the key handle and skip if already initialized */
#define INIT_DEFERRED_DB_ENCRYPTION_IF_NEEDED(REG, CSA, CSD) \
MBSTART { \
int init_status; \
int fn_len; \
char *fn; \
boolean_t do_crypt_init; \
boolean_t shoulda_crypt_init; \
DEBUG_ONLY(boolean_t was_gtmcrypt_initialized = gtmcrypt_initialized); \
\
do_crypt_init = ((USES_ENCRYPTION(CSD->is_encrypted)) && !IS_LKE_IMAGE && CSA->encr_ptr \
&& (GTMCRYPT_INVALID_KEY_HANDLE == (CSA)->encr_key_handle) \
&& !(CSA->encr_ptr->issued_db_init_crypt_warning) \
&& (CSA->encr_ptr->reorg_encrypt_cycle == CSA->nl->reorg_encrypt_cycle)); \
/* Concurrent REORG ENCRYPT has invalidated previously acquired key information */ \
shoulda_crypt_init = ((USES_ENCRYPTION(CSD->is_encrypted)) && !IS_LKE_IMAGE && CSA->encr_ptr \
&& (GTMCRYPT_INVALID_KEY_HANDLE == (CSA)->encr_key_handle) \
&& !(CSA->encr_ptr->issued_db_init_crypt_warning)); \
if (do_crypt_init) \
{ \
assert(was_gtmcrypt_initialized); \
fn = (char *)(REG->dyn.addr->fname); \
fn_len = REG->dyn.addr->fname_len; \
INIT_DB_OR_JNL_ENCRYPTION(CSA, CSD, fn_len, fn, init_status); \
if ((0 != init_status) && (CSA->encr_ptr->reorg_encrypt_cycle == CSA->nl->reorg_encrypt_cycle)) \
{ \
if (IS_GTM_IMAGE || mu_reorg_encrypt_in_prog) \
{ \
GTMCRYPT_REPORT_ERROR(init_status, rts_error, fn_len, fn); \
} else \
{ \
GTMCRYPT_REPORT_ERROR(MAKE_MSG_WARNING(init_status), gtm_putmsg, fn_len, fn); \
CSA->encr_ptr->issued_db_init_crypt_warning = TRUE; \
} \
} else if (0 != init_status) \
{ /* CSA->encr_ptr cannot be trusted */ \
memset(CSA->encr_ptr, 0, SIZEOF(enc_info_t)); \
CSA->encr_ptr->reorg_encrypt_cycle = -1; \
/* Send the warning to syslog, which does not count as issued_db_init_crypt_warning */ \
GTMCRYPT_REPORT_ERROR(MAKE_MSG_WARNING(init_status), send_msg, fn_len, fn); \
} \
} else if (shoulda_crypt_init) \
{ /* CSA->encr_ptr cannot be trusted */ \
memset(CSA->encr_ptr, 0, SIZEOF(enc_info_t)); \
CSA->encr_ptr->reorg_encrypt_cycle = -1; \
assert(was_gtmcrypt_initialized); \
fn = (char *)(REG->dyn.addr->fname); \
fn_len = REG->dyn.addr->fname_len; \
/* Send the warning to syslog, which does not count as issued_db_init_crypt_warning */ \
GTMCRYPT_REPORT_ERROR(SET_CRYPTERR_MASK(ERR_ENCRYPTCONFLT2), send_msg, fn_len, fn); \
} \
} MBEND
GBLREF boolean_t mu_reorg_process;
GBLREF boolean_t created_core, dont_want_core;
GBLREF gd_region *db_init_region, *gv_cur_region, *ftok_sem_reg;
GBLREF gv_key *gv_currkey;
GBLREF gv_namehead *gv_target;
GBLREF sgmnt_addrs *cs_addrs_list;
GBLREF sgmnt_data_ptr_t cs_data;
GBLREF boolean_t gtmcrypt_initialized;
GBLREF boolean_t gtcm_connection;
GBLREF gd_addr *gd_header;
GBLREF bool licensed;
GBLREF int4 lkid;
GBLREF char *update_array, *update_array_ptr;
GBLREF uint4 update_array_size, cumul_update_array_size;
GBLREF ua_list *first_ua, *curr_ua;
GBLREF short crash_count;
GBLREF uint4 dollar_tlevel;
GBLREF uint4 dollar_trestart;
GBLREF uint4 mu_reorg_encrypt_in_prog;
GBLREF boolean_t mupip_jnl_recover;
GBLREF jnl_format_buffer *non_tp_jfb_ptr;
GBLREF buddy_list *global_tlvl_info_list;
GBLREF tp_region *tp_reg_free_list; /* Ptr to list of tp_regions that are unused */
GBLREF tp_region *tp_reg_list; /* Ptr to list of tp_regions for this transaction */
GBLREF unsigned int t_tries;
GBLREF struct_jrec_tcom tcom_record;
GBLREF boolean_t tp_in_use;
GBLREF uint4 region_open_count;
GBLREF sm_uc_ptr_t reformat_buffer;
GBLREF int reformat_buffer_len;
GBLREF volatile int reformat_buffer_in_use; /* used only in DEBUG mode */
GBLREF volatile int4 fast_lock_count;
GBLREF boolean_t dse_running;
GBLREF jnl_gbls_t jgbl;
GBLREF enum gtmImageTypes image_type;
GBLREF int pool_init;
GBLREF boolean_t jnlpool_init_needed;
GBLREF jnlpool_addrs_ptr_t jnlpool;
GBLREF jnlpool_addrs_ptr_t jnlpool_head;
GBLREF uint4 process_id;
LITREF char gtm_release_name[];
LITREF int4 gtm_release_name_len;
LITREF mval literal_statsDB_gblname;
#define MAX_DBINIT_RETRY 3
#define MAX_DBFILOPN_RETRY_CNT 4
/* In code below to (re)create a statsDB file, we are doing a number of operations under lock. Rather than deal with
* getting out of the lock before the error, handle the possible errors after we are out from under the lock. These
* values are the possible errors we need may need to raise.
*/
typedef enum {
STATSDB_NOERR = 0,
STATSDB_NOTEEXIST,
STATSDB_OPNERR,
STATSDB_READERR,
STATSDB_NOTSTATSDB,
STATSDB_NOTOURS,
STATSDB_UNLINKERR,
STATSDB_RECREATEERR,
STATSDB_CLOSEERR,
STATSDB_SHMRMIDERR,
STATSDB_SEMRMIDERR,
STATSDB_FTOKSEMRMIDERR
} statsdb_recreate_errors;
error_def(ERR_BADDBVER);
error_def(ERR_DBCREINCOMP);
error_def(ERR_DBFLCORRP);
error_def(ERR_DBGLDMISMATCH);
error_def(ERR_DBNOTGDS);
error_def(ERR_DBOPNERR);
error_def(ERR_DBROLLEDBACK);
error_def(ERR_DBVERPERFWARN1);
error_def(ERR_DBVERPERFWARN2);
error_def(ERR_DRVLONGJMP); /* Generic internal only error used to drive longjump() in a queued condition handler */
error_def(ERR_ENCRYPTCONFLT2);
error_def(ERR_INVSTATSDB);
error_def(ERR_MMNODYNUPGRD);
error_def(ERR_REGOPENFAIL);
error_def(ERR_STATSDBFNERR);
error_def(ERR_STATSDBINUSE);
static readonly mval literal_poollimit =
DEFINE_MVAL_LITERAL(MV_STR | MV_NUM_APPROX, 0, 0, (SIZEOF("POOLLIMIT") - 1), "POOLLIMIT", 0, 0);
void assert_jrec_member_offsets(void)
{
assert(REAL_JNL_HDR_LEN % DISK_BLOCK_SIZE == 0);
assert(JNL_HDR_LEN % DISK_BLOCK_SIZE == 0);
/* We currently assume that the journal file header size is aligned relative to the filesystem block size.
* which is currently assumed to be a 2-power (e.g. 512 bytes, 1K, 2K, 4K etc.) but never more than 64K
* (MAX_IO_BLOCK_SIZE). Given this, we keep the journal file header size at 64K for Unix.
* This way any process updating the file header will hold crit and do aligned writes. Any process
* writing the journal file data (journal records) on disk will hold the qio lock and can safely do so without
* ever touching the journal file header area. If ever MAX_IO_BLOCK_SIZE changes (say because some filesystem
* block size changes to 128K) such that JNL_HDR_LEN is no longer aligned to that, we want to know hence this assert.
*/
assert(JNL_HDR_LEN % MAX_IO_BLOCK_SIZE == 0);
assert(REAL_JNL_HDR_LEN == SIZEOF(jnl_file_header));
assert(REAL_JNL_HDR_LEN <= JNL_HDR_LEN);
assert(JNL_HDR_LEN == JNL_FILE_FIRST_RECORD);
assert(DISK_BLOCK_SIZE >= PINI_RECLEN + EPOCH_RECLEN + PFIN_RECLEN + EOF_RECLEN);
assert((JNL_ALLOC_MIN * DISK_BLOCK_SIZE) > JNL_HDR_LEN);
/* Following assert is for JNL_FILE_TAIL_PRESERVE macro in jnl.h */
assert(PINI_RECLEN >= EPOCH_RECLEN && PINI_RECLEN >= PFIN_RECLEN && PINI_RECLEN >= EOF_RECLEN);
/* jnl_string structure has a 8-bit nodeflags field and a 24-bit length field. In some cases, this is
* used as a 32-bit length field (e.g. in the value part of the SET record or ZTWORMHOLE or LGTRIG record).
* These usages treat the 32-bits as a jnl_str_len_t type and access it directly. Hence the requirement that
* jnl_str_len_t be the same size as 32-bits and also the same as the offset to the "text" member.
* If this assert fails, all places that reference jnl_str_len_t need to be revisited.
*/
assert(SIZEOF(jnl_str_len_t) == SIZEOF(uint4));
assert(SIZEOF(jnl_str_len_t) == offsetof(jnl_string, text[0]));
/* since time in jnl record is a uint4, and since JNL_SHORT_TIME expects time_t, we better ensure they are same.
* A change in the size of time_t would mean a redesign of the fields. */
assert(SIZEOF(time_t) == GTM64_ONLY(SIZEOF(gtm_int8)) NON_GTM64_ONLY(SIZEOF(int4)));
/* Make sure all jnl_seqno fields start at same offset. mur_output_record and others rely on this. */
assert(offsetof(struct_jrec_null, jnl_seqno) == offsetof(struct_jrec_upd, token_seq.jnl_seqno));
assert(offsetof(struct_jrec_null, jnl_seqno) == offsetof(struct_jrec_epoch, jnl_seqno));
assert(offsetof(struct_jrec_null, jnl_seqno) == offsetof(struct_jrec_eof, jnl_seqno));
assert(offsetof(struct_jrec_null, jnl_seqno) == offsetof(struct_jrec_tcom, token_seq.jnl_seqno));
assert(offsetof(struct_jrec_null, jnl_seqno) == offsetof(struct_jrec_ztworm, token_seq.jnl_seqno));
assert(offsetof(struct_jrec_null, jnl_seqno) == offsetof(struct_jrec_lgtrig, token_seq.jnl_seqno));
/* Make sure all strm_seqno fields start at same offset. Lot of modules rely on this */
assert(offsetof(struct_jrec_null, strm_seqno) == offsetof(struct_jrec_upd, strm_seqno));
assert(offsetof(struct_jrec_null, strm_seqno) == offsetof(struct_jrec_tcom, strm_seqno));
assert(offsetof(struct_jrec_null, strm_seqno) == offsetof(struct_jrec_ztworm, strm_seqno));
assert(offsetof(struct_jrec_null, strm_seqno) == offsetof(struct_jrec_lgtrig, strm_seqno));
/* EOF and EPOCH are not included in the above asserts because they have not ONE but 16 strm_seqno values each */
assert(offsetof(struct_jrec_ztcom, token) == offsetof(struct_jrec_upd, token_seq));
/* Make sure all jnl_seqno and token fields start at 8-byte boundary */
assert(offsetof(struct_jrec_upd, token_seq.jnl_seqno) ==
(ROUND_UP(offsetof(struct_jrec_upd, token_seq.jnl_seqno), SIZEOF(seq_num))));
assert(offsetof(struct_jrec_tcom, token_seq.jnl_seqno) ==
(ROUND_UP(offsetof(struct_jrec_tcom, token_seq.jnl_seqno), SIZEOF(seq_num))));
assert(offsetof(struct_jrec_null, jnl_seqno) ==
(ROUND_UP(offsetof(struct_jrec_null, jnl_seqno), SIZEOF(seq_num))));
assert(offsetof(struct_jrec_epoch, jnl_seqno) ==
(ROUND_UP(offsetof(struct_jrec_epoch, jnl_seqno), SIZEOF(seq_num))));
assert(offsetof(struct_jrec_eof, jnl_seqno) ==
(ROUND_UP(offsetof(struct_jrec_eof, jnl_seqno), SIZEOF(seq_num))));
/* All fixed size records must be multiple of 8-byte */
assert(TCOM_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_tcom), JNL_REC_START_BNDRY)));
assert(ZTCOM_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_ztcom), JNL_REC_START_BNDRY)));
assert(INCTN_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_inctn), JNL_REC_START_BNDRY)));
assert(PINI_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_pini), JNL_REC_START_BNDRY)));
assert(PFIN_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_pfin), JNL_REC_START_BNDRY)));
assert(NULL_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_null), JNL_REC_START_BNDRY)));
assert(EPOCH_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_epoch), JNL_REC_START_BNDRY)));
assert(EOF_RECLEN == (ROUND_UP(SIZEOF(struct_jrec_eof), JNL_REC_START_BNDRY)));
/* Assumption about the structures in code */
assert(0 == MIN_ALIGN_RECLEN % JNL_REC_START_BNDRY);
assert(SIZEOF(uint4) == SIZEOF(jrec_suffix));
assert((SIZEOF(jnl_record) + MAX_LOGI_JNL_REC_SIZE + SIZEOF(jrec_suffix)) < MAX_JNL_REC_SIZE);
assert((DISK_BLOCK_SIZE * JNL_DEF_ALIGNSIZE) >= MAX_JNL_REC_SIZE);/* default alignsize supports max jnl record length */
assert(MAX_MAX_NONTP_JNL_REC_SIZE <= MAX_JNL_REC_SIZE);
assert(MAX_DB_BLK_SIZE < MAX_MAX_NONTP_JNL_REC_SIZE); /* Ensure a PBLK record can accommodate a full GDS block */
assert(MAX_JNL_REC_SIZE <= (1 << 24));
/* Ensure that the 24-bit length field in the journal record can accommodate the maximum journal record size */
assert(tcom_record.prefix.forwptr == tcom_record.suffix.backptr);
assert(TCOM_RECLEN == tcom_record.suffix.backptr);
assert(SIZEOF(token_split_t) == SIZEOF(token_build)); /* Required for TOKEN_SET macro */
}
CONDITION_HANDLER(gvcst_init_autoDB_ch)
{
gd_region *reg;
START_CH(TRUE);
if ((SUCCESS == SEVERITY) || (INFO == SEVERITY))
{
assert(FALSE); /* don't know of any possible INFO/SUCCESS errors */
CONTINUE; /* Keep going for non-error issues */
}
if (IS_STATSDB_REG(db_init_region))
STATSDBREG_TO_BASEDBREG(db_init_region, reg);
else
reg = db_init_region;
if ((NULL != ftok_sem_reg) && !ftok_sem_release(reg, FALSE, FALSE)) /* release ftok lock on the base region */
assert(FALSE);
/* Enable interrupts in case we are here with intrpt_ok_state == INTRPT_IN_GVCST_INIT due to an rts error.
* Normally we would have the new state stored in "prev_intrpt_state" but that is not possible here because
* the corresponding DEFER_INTERRUPTS happened in "gvcst_init" (a different function) so we have an assert
* there that the previous state was INTRPT_OK_TO_INTERRUPT and use that instead of prev_intrpt_state here.
*/
ENABLE_INTERRUPTS(INTRPT_IN_GVCST_INIT, INTRPT_OK_TO_INTERRUPT);
NEXTCH;
}
void gvcst_init(gd_region *reg, gd_addr *addr)
{
gd_segment *seg;
sgmnt_addrs *baseDBcsa, *csa, *prevcsa, *regcsa;
sgmnt_data_ptr_t csd;
sgmnt_data statsDBcsd;
jnlpool_addrs_ptr_t save_jnlpool;
uint4 segment_update_array_size;
int4 bsize, padsize;
boolean_t is_statsDB, realloc_alt_buff, retry_dbinit;
file_control *fc;
gd_region *prev_reg, *reg_top, *baseDBreg, *statsDBreg;
# ifdef DEBUG
cache_rec_ptr_t cr;
bt_rec_ptr_t bt;
blk_ident tmp_blk;
# endif
int db_init_ret, loopcnt, max_fid_index, fd, rc, save_errno, errrsn_text_len, status;
mstr log_nam, trans_log_nam;
char trans_buff[MAX_FN_LEN + 1], statsdb_path[MAX_FN_LEN + 1], *errrsn_text;
unique_file_id *reg_fid, *tmp_reg_fid;
gd_id replfile_gdid, *tmp_gdid;
tp_region *tr;
ua_list *tmp_ua;
time_t curr_time;
uint4 curr_time_uint4, next_warn_uint4;
unsigned int minus1 = (unsigned)-1;
enum db_acc_method reg_acc_meth;
boolean_t onln_rlbk_cycle_mismatch = FALSE;
boolean_t replpool_valid = FALSE, replfilegdid_valid = FALSE, jnlpool_found = FALSE;
intrpt_state_t save_intrpt_ok_state;
replpool_identifier replpool_id;
unsigned int full_len;
int4 db_init_retry;
srch_blk_status *bh;
mstr *gld_str;
node_local_ptr_t baseDBnl;
unsigned char cstatus;
statsdb_recreate_errors statsdb_rcerr;
jbuf_rsrv_struct_t *nontp_jbuf_rsrv_lcl;
intrpt_state_t prev_intrpt_state;
key_t ftok_key;
int ftok_semid;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
UNSUPPORTED_PLATFORM_CHECK;
/* If this is a statsDB, then open its baseDB first (if not already open). Most of the times the baseDB would be open.
* In rare cases like direct use of ^%YGS global, it is possible baseDB is not open.
*/
assert(!reg->open);
is_statsDB = IS_STATSDB_REG(reg);
if (is_statsDB)
{
STATSDBREG_TO_BASEDBREG(reg, baseDBreg);
if (!baseDBreg->open)
{
DBGRDB((stderr, "gvcst_init: !baseDBreg->open (NOT open)\n"));
gvcst_init(baseDBreg, addr);
assert(baseDBreg->open);
if (reg->open) /* statsDB was opened as part of opening baseDB. No need to do anything more here */
{
DBGRDB((stderr, "gvcst_init: reg->open return\n"));
return;
}
/* At this point, the baseDB is open but the statsDB is not automatically opened. This is possible if
* a) TREF(statshare_opted_in) is not ALL. In that case, this call to "gvcst_init" is coming through
* a direct reference to the statsDB (e.g. ZWR ^%YGS). OR
* b) baseDBreg->was_open is TRUE. In that case, the statsDB open would have been short-circuited
* in "gvcst_init".
* c) Neither (a) nor (b). This means an open of the statsDB was attempted as part of the baseDB
* "gvcst_init" done above. Since it did not, that means some sort of error occurred that
* has sent messages to the user console or syslog so return right away to the caller which
* would silently adjust gld map entries so they do not point to this statsDB anymore
* (NOSTATS should already be set in the baseDB in this case, assert that).
*/
if ((ALL_STATS_OPTIN == TREF(statshare_opted_in)) && !baseDBreg->was_open)
{
assert(RDBF_NOSTATS & baseDBreg->reservedDBFlags);
return;
}
} else if (RDBF_NOSTATS & baseDBreg->reservedDBFlags)
{ /* The baseDB was already open and the statsDB was NOT open. This could be because of either the baseDB
* has NOSTATS set in it or it could be that ALL_STATS_OPTIN wasn't in place when we attempted before to
* open the statsDB but failed for whatever reason (privs, noexistant directory, space, etc). In either
* return right away (for same reason as described before the "if" block above).
*/
return;
}
baseDBcsa = &FILE_INFO(baseDBreg)->s_addrs;
baseDBnl = baseDBcsa->nl;
if (!baseDBnl->statsdb_created)
{ /* Before "dbfilopn" of a statsdb, check if it has been created. If not, create it (as it is an autodb).*/
/* Disable interrupts for the time we hold the ftok lock as it is otherwise possible we get a SIG-15
* and go to exit handling and try a nested "ftok_sem_lock" on the same basedb and that could pose
* multiple issues (e.g. ftok_sem_lock starts a timer while waiting in the "semop" call and we will
* have the same timer-id added twice due to the nested call).
*/
DBGRDB((stderr, "gvcst_init: !baseDBnl->statsdb_created\n"));
if (IS_TP_AND_FINAL_RETRY && baseDBcsa->now_crit)
{ /* If this is a TP transaction and in the final retry, we are about to request the ftok
* sem lock on baseDBreg while already holding crit on baseDBReg. That is an out-of-order
* request which can lead to crit/ftok deadlocks so release crit before requesting it.
* This code is similar to the TPNOTACID_CHECK macro with the below exceptions.
* a) We do not want to issue the TPNOTACID syslog message since there is no ACID
* violation here AND
* b) We have to check for baseDBcsa->now_crit in addition to IS_TP_AND_FINAL_RETRY
* as it is possible this call comes from "tp_restart -> gv_init_reg -> gvcst_init"
* AND t_tries is still 3 but we do not hold crit on any region at that point
* (i.e. "tp_crit_all_regions" call is not yet done) and in that case we should
* not decrement t_tries (TP_FINAL_RETRY_DECREMENT_T_TRIES_IF_OK call below)
* as it would result in we later starting the final retry with t_tries = 2 but
* holding crit on all regions which is an out-of-design situation.
*/
TP_REL_CRIT_ALL_REG;
assert(!baseDBcsa->now_crit);
assert(!mupip_jnl_recover);
TP_FINAL_RETRY_DECREMENT_T_TRIES_IF_OK;
}
db_init_region = baseDBreg; /* gvcst_init_autoDB_ch needs reg 4 ftok_sem_lock */
DEFER_INTERRUPTS(INTRPT_IN_GVCST_INIT, prev_intrpt_state);
assert(INTRPT_OK_TO_INTERRUPT == prev_intrpt_state); /* relied upon by ENABLE_INTERRUPTS
* in "gvcst_init_autoDB_ch".
*/
if (!ftok_sem_lock(baseDBreg, FALSE))
{ /* Use FTOK of the base db as a lock, the same lock obtained when statsdb is auto deleted */
assert(FALSE);
rts_error_csa(CSA_ARG(baseDBcsa) VARLSTCNT(4) ERR_DBFILERR, 2, DB_LEN_STR(baseDBreg));
}
ESTABLISH(gvcst_init_autoDB_ch); /* ch reverses the DEFER and lock in the opposite order */
if (0 == baseDBnl->statsdb_fname_len)
{ /* Initialize cnl->statsdb_fname from the basedb name */
baseDBnl->statsdb_fname_len = ARRAYSIZE(baseDBnl->statsdb_fname);
gvcst_set_statsdb_fname(baseDBcsa->hdr, baseDBreg, baseDBnl->statsdb_fname,
&baseDBnl->statsdb_fname_len);
}
if (0 == baseDBnl->statsdb_fname_len)
{ /* only true if gvcst_set_statsdb_fname had a problem and set it that way in */
switch(TREF(statsdb_fnerr_reason))
{ /* turn the reason from gvcst_set_statsdb_fname into a useful error message */
case FNERR_NOSTATS:
errrsn_text = FNERR_NOSTATS_TEXT;
errrsn_text_len = SIZEOF(FNERR_NOSTATS_TEXT) - 1;
break;
case FNERR_STATSDIR_TRNFAIL:
errrsn_text = FNERR_STATSDIR_TRNFAIL_TEXT;
errrsn_text_len = SIZEOF(FNERR_STATSDIR_TRNFAIL_TEXT) - 1;
break;
case FNERR_STATSDIR_TRN2LONG:
errrsn_text = FNERR_STATSDIR_TRN2LONG_TEXT;
errrsn_text_len = SIZEOF(FNERR_STATSDIR_TRN2LONG_TEXT) - 1;
break;
case FNERR_INV_BASEDBFN:
errrsn_text = FNERR_INV_BASEDBFN_TEXT;
errrsn_text_len = SIZEOF(FNERR_INV_BASEDBFN_TEXT) - 1;
break;
case FNERR_FTOK_FAIL:
errrsn_text = FNERR_FTOK_FAIL_TEXT;
errrsn_text_len = SIZEOF(FNERR_FTOK_FAIL_TEXT) - 1;
break;
case FNERR_FNAMEBUF_OVERFLOW:
errrsn_text = FNERR_FNAMEBUF_OVERFLOW_TEXT;
errrsn_text_len = SIZEOF(FNERR_FNAMEBUF_OVERFLOW_TEXT) - 1;
break;
default:
assertpro(FALSE);
}
assert(TREF(gvcst_statsDB_open_ch_active)); /* below error goes to syslog and not to user */
baseDBreg->reservedDBFlags |= RDBF_NOSTATS; /* Disable STATS in base DB */
baseDBcsa->reservedDBFlags |= RDBF_NOSTATS;
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_DBFILERR, 2, DB_LEN_STR(baseDBreg), ERR_STATSDBFNERR,
2, errrsn_text_len, errrsn_text);
}
COPY_STATSDB_FNAME_INTO_STATSREG(reg, baseDBnl->statsdb_fname, baseDBnl->statsdb_fname_len);
seg = reg->dyn.addr;
if (!seg->blk_size)
{ /* Region/segment created by "mu_gv_cur_reg_init" (which sets most of reg/seg fields to 0).
* Now that we need a non-zero blk_size, do what GDE did to calculate the statsdb block-size.
* But since we cannot duplicate that code here, we set this to the same value effectively but
* add an assert that the two are the same in "gd_load" function.
* Take this opportunity to initialize other seg/reg fields for statsdbs as GDE would have done.
*/
seg->blk_size = STATSDB_BLK_SIZE;
/* Similar code for a few other critical fields that need initialization before "mu_cre_file" */
seg->allocation = STATSDB_ALLOCATION;
seg->ext_blk_count = STATSDB_EXTENSION;
reg->max_key_size = STATSDB_MAX_KEY_SIZE;
reg->max_rec_size = STATSDB_MAX_REC_SIZE;
/* The below is directly inherited from the base db so no macro/assert like above fields */
seg->mutex_slots = NUM_CRIT_ENTRY(baseDBcsa->hdr);
reg->mumps_can_bypass = TRUE;
}
for ( ; ; ) /* for loop only to let us break from error cases without having a deep if-then-else */
{ /* with the ftok lock in place, check if the db is already created */
if (baseDBnl->statsdb_created)
break;
/* File still not created. Do it now under the ftok lock. */
DBGRDB((stderr, "gvcst_init: !baseDBnl->statsdb_created (under lock)\n"));
cstatus = gvcst_cre_autoDB(reg);
if (EXIT_NRM == cstatus)
{
baseDBnl->statsdb_created = TRUE;
break;
}
/* File failed to create - if this is a case where the file exists (but was not supposed
* to exist), we should remove/recreate the file. Otherwise, we have a real error -
* probably a missing directory or permissions or some such. In that case, turn off stats
* and unwind the failed open.
*/
statsdb_rcerr = STATSDB_NOERR; /* Assume no error to occur */
save_errno = TREF(mu_cre_file_openrc); /* Save the errno that stopped our recreate */
DBGRDB((stderr, "gvcst_init: Create of statsDB failed - rc = %d\n", save_errno));
for ( ; ; ) /* for loop only to handle error cases without having a deep if-then-else */
{
if (EACCES == TREF(mu_cre_file_openrc))
{
statsdb_rcerr = STATSDB_OPNERR;
save_errno = errno;
break;
}
if (EEXIST != TREF(mu_cre_file_openrc))
{
statsdb_rcerr = STATSDB_NOTEEXIST;
break;
}
/* See if this statsdb file is really supposed to be linked to the baseDB we
* also just opened. To do this, we need to open the statsdb temporarily, read
* its fileheader and then close it to get the file-header field we want. Note
* this is a very quick operation so we don't use the normal DB utilities on it.
* We just want to read the file header and get out. Since we have the lock, no
* other processes will have this database open unless we are illegitimately
* opening it. This is an infrequent issue so the overhead is not relevant.
*/
DBGRDB((stderr, "gvcst_init: Test to see if file is 'ours'\n"));
memcpy(statsdb_path, reg->dyn.addr->fname, reg->dyn.addr->fname_len);
statsdb_path[reg->dyn.addr->fname_len] = '\0'; /* Rebuffer fn to include null */
fd = OPEN(statsdb_path, O_RDONLY);
if (0 > fd)
{ /* Some sort of open error occurred */
statsdb_rcerr = STATSDB_OPNERR;
save_errno = errno;
break;
}
/* Open worked - read file header from it*/
LSEEKREAD(fd, 0, (char *)&statsDBcsd, SIZEOF(sgmnt_data), rc);
if (0 > rc)
{ /* Wasn't enough data to be a file header - not a statsDB */
statsdb_rcerr = STATSDB_NOTSTATSDB;
CLOSEFILE(fd, rc);
break;
}
if (0 < rc)
{ /* Unknown error while doing read */
statsdb_rcerr = STATSDB_READERR;
save_errno = rc;
CLOSEFILE(fd, rc);
break;
}
/* This is the case (0 == rc) */
/* Read worked - check if these two files are a proper pair */
if ((baseDBreg->dyn.addr->fname_len != statsDBcsd.basedb_fname_len)
|| (0 != memcmp(baseDBreg->dyn.addr->fname,
statsDBcsd.basedb_fname, statsDBcsd.basedb_fname_len)))
{ /* This file is in use by another database */
statsdb_rcerr = STATSDB_NOTOURS;
CLOSEFILE(fd, rc);
break;
}
/* This file was for us - unlink and recreate */
DBGRDB((stderr, "gvcst_init: File is ours - unlink and recreate it\n"));
# ifdef BYPASS_UNLINK_RECREATE_STATSDB
baseDBnl->statsdb_created = TRUE;
# else
/* Before removing a leftover statsdb file, check if it has corresponding private
* semid/shmid or ftok_semid. If so, remove them too.
*/
if ((INVALID_SHMID != statsDBcsd.shmid) && (0 != shm_rmid(statsDBcsd.shmid)))
{
statsdb_rcerr = STATSDB_SHMRMIDERR;
save_errno = errno;
CLOSEFILE(fd, rc);
break;
}
if ((INVALID_SEMID != statsDBcsd.semid) && (0 != sem_rmid(statsDBcsd.semid)))
{
statsdb_rcerr = STATSDB_SEMRMIDERR;
save_errno = errno;
CLOSEFILE(fd, rc);
break;
}
if ((-1 != (ftok_key = FTOK(statsdb_path, GTM_ID)))
&& (INVALID_SEMID
!= (ftok_semid = semget(ftok_key, FTOK_SEM_PER_ID, RWDALL | IPC_CREAT)))
&& (0 == semctl(ftok_semid, DB_COUNTER_SEM, GETVAL))
&& (0 != sem_rmid(ftok_semid)))
{
statsdb_rcerr = STATSDB_FTOKSEMRMIDERR;
save_errno = errno;
CLOSEFILE(fd, rc);
break;
}
rc = UNLINK(statsdb_path);
if (0 > rc)
{ /* Unlink failed - may not have permissions */
statsdb_rcerr = STATSDB_UNLINKERR;
save_errno = errno;
CLOSEFILE(fd, rc);
break;
}
/* Unlink succeeded - recreate now */
cstatus = gvcst_cre_autoDB(reg);
if (EXIT_NRM != cstatus)
{ /* Recreate failed */
statsdb_rcerr = STATSDB_RECREATEERR;
save_errno = TREF(mu_cre_file_openrc);
CLOSEFILE(fd, rc);
break;
}
baseDBnl->statsdb_created = TRUE;
# endif
CLOSEFILE(fd, rc);
if (0 < rc)
{ /* Close failed */
statsdb_rcerr = STATSDB_CLOSEERR;
save_errno = rc;
}
break;
}
if (STATSDB_NOERR != statsdb_rcerr)
{ /* If we could not create or recreate the file, finish our error processing here */
assert(TREF(gvcst_statsDB_open_ch_active)); /* so the below rts_error_csa calls
* go to syslog and not to user.
*/
baseDBreg->reservedDBFlags |= RDBF_NOSTATS; /* Disable STATS in base DB */
baseDBcsa->reservedDBFlags |= RDBF_NOSTATS;
baseDBnl->statsdb_fname_len = 0;
if (!ftok_sem_release(baseDBreg, FALSE, FALSE))
{ /* Release the lock before unwinding back */
assert(FALSE);
rts_error_csa(CSA_ARG(baseDBcsa) VARLSTCNT(4) ERR_DBFILERR, 2,
DB_LEN_STR(baseDBreg));
}
/* For those errors that need a special error message, take care of that here
* now that we've released the lock.
*/
switch(statsdb_rcerr)
{
case STATSDB_NOTEEXIST: /* Some error occurred handled elsewhere */
break;
case STATSDB_NOTOURS: /* This statsdb already in use elsewhere */
/* We are trying to attach a statsDB to our baseDB should not be
* associated with that baseDB. First check if this IS a statsdb.
*/
if (IS_RDBF_STATSDB(&statsDBcsd))
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_STATSDBINUSE,
6, DB_LEN_STR(reg),
statsDBcsd.basedb_fname_len,
statsDBcsd.basedb_fname,
DB_LEN_STR(baseDBreg));
else
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(6) ERR_INVSTATSDB,
4, DB_LEN_STR(reg), REG_LEN_STR(reg));
break; /* For the compiler */
case STATSDB_OPNERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(5) ERR_DBOPNERR, 2,
DB_LEN_STR(reg), save_errno);
break; /* For the compiler */
case STATSDB_READERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(5) ERR_DBFILERR, 2,
DB_LEN_STR(reg), save_errno);
break; /* For the compiler */
case STATSDB_NOTSTATSDB:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(6) ERR_INVSTATSDB, 4,
DB_LEN_STR(reg), REG_LEN_STR(reg));
break; /* For the compiler */
case STATSDB_UNLINKERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5,
LEN_AND_LIT("unlink()"), CALLFROM, save_errno);
break; /* For the compiler */
case STATSDB_RECREATEERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(5) ERR_DBOPNERR, 2,
DB_LEN_STR(reg), save_errno);
break; /* For the compiler */
case STATSDB_CLOSEERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5,
LEN_AND_LIT("close()"), CALLFROM, save_errno);
break; /* For the compiler */
case STATSDB_SHMRMIDERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5,
LEN_AND_LIT("shm_rmid()"), CALLFROM, save_errno);
break; /* For the compiler */
case STATSDB_SEMRMIDERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5,
LEN_AND_LIT("sem_rmid()"), CALLFROM, save_errno);
break; /* For the compiler */
case STATSDB_FTOKSEMRMIDERR:
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5,
LEN_AND_LIT("ftok sem_rmid()"), CALLFROM, save_errno);
break; /* For the compiler */
default:
assertpro(FALSE);
}
if (TREF(gvcst_statsDB_open_ch_active))
{ /* Unwind back to ESTABLISH_NORET where did gvcst_init() call to open this
* statsDB which now won't open.
*/
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(1) ERR_DRVLONGJMP);
} else
{ /* We are not nested so can give the appropriate error ourselves */
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_DBFILERR, 2,
DB_LEN_STR(reg), ERR_TEXT, 2,
RTS_ERROR_TEXT("See preceding errors written to syserr"
" and/or syslog for details"));
}
}
break;
}
REVERT;
if (!ftok_sem_release(baseDBreg, FALSE, FALSE))
{
assert(FALSE);
rts_error_csa(CSA_ARG(baseDBcsa) VARLSTCNT(4) ERR_DBFILERR, 2, DB_LEN_STR(baseDBreg));
}
ENABLE_INTERRUPTS(INTRPT_IN_GVCST_INIT, prev_intrpt_state);
} else
{
COPY_STATSDB_FNAME_INTO_STATSREG(reg, baseDBnl->statsdb_fname, baseDBnl->statsdb_fname_len);
seg = reg->dyn.addr;
if (!seg->blk_size)
{ /* see comment above on why we this initialization for a statsDB */
seg->blk_size = STATSDB_BLK_SIZE;
seg->allocation = STATSDB_ALLOCATION;
seg->ext_blk_count = STATSDB_EXTENSION;
reg->max_key_size = STATSDB_MAX_KEY_SIZE;
reg->max_rec_size = STATSDB_MAX_REC_SIZE;
seg->mutex_slots = NUM_CRIT_ENTRY(baseDBcsa->hdr);
reg->mumps_can_bypass = TRUE;
}
}
}
# ifdef DEBUG
else
{
BASEDBREG_TO_STATSDBREG(reg, statsDBreg);
assert(!statsDBreg->open);
}
# endif
assert(!jgbl.forw_phase_recovery);
CWS_INIT; /* initialize the cw_stagnate hash-table */
/* check the header design assumptions */
assert(SIZEOF(th_rec) == (SIZEOF(bt_rec) - SIZEOF(bt->blkque)));
assert(SIZEOF(cache_rec) == (SIZEOF(cache_state_rec) + SIZEOF(cr->blkque)));
DEBUG_ONLY(assert_jrec_member_offsets());
assert(MAX_DB_BLK_SIZE < (1 << NEXT_OFF_MAX_BITS)); /* Ensure a off_chain record's next_off member
* can work with all possible block sizes */
set_num_additional_processors();
# ifdef DEBUG
/* Note that the "block" member in the blk_ident structure in gdskill.h has 30 bits.
* Currently, the maximum number of blocks is 2**30. If ever this increases, something
* has to be correspondingly done to the "block" member to increase its capacity.
* The following assert checks that we always have space in the "block" member
* to represent a GDS block number.
*/
tmp_blk.block = minus1;
assert(MAXTOTALBLKS_MAX - 1 <= tmp_blk.block);
# endif
/* TH_BLOCK is currently a hardcoded constant as basing it on the offsetof macro does not work with the VMS compiler.
* Therefore assert that TH_BLOCK points to the 512-byte block where the "trans_hist" member lies in the fileheader.
*/
assert(DIVIDE_ROUND_UP(offsetof(sgmnt_data, trans_hist), DISK_BLOCK_SIZE) == TH_BLOCK);
/* Here's the shared memory layout:
*
* low address
*
* both
* segment_data
* (file_header)
* MM_BLOCK
* (master_map)
* TH_BLOCK
* BG
* bt_header
* (bt_buckets * bt_rec)
* th_base (SIZEOF(que_ent) into an odd bt_rec)
* bt_base
* (n_bts * bt_rec)
* LOCK_BLOCK (lock_space)
* (lock_space_size)
* cs_addrs->acc_meth.bg.cache_state
* (cache_que_heads)
* (bt_buckets * cache_rec)
* (n_bts * cache_rec)
* critical
* (mutex_struct)
* nl
* (node_local)
* [jnl_name
* jnl_buffer]
* MM
* file contents
* LOCK_BLOCK (lock_space)
* (lock_space_size)
* cs_addrs->acc_meth.mm.mmblk_state
* (mmblk_que_heads)
* (bt_buckets * mmblk_rec)
* (n_bts * mmblk_rec)
* critical
* (mutex_struct)
* nl
* (node_local)
* [jnl_name
* jnl_buffer]
* high address
*/
/* Ensure first 3 members (upto now_running) of node_local are at the same offset for any version.
*
* Structure ----> node_local <---- size 59392 [0xe800]
*
* offset = 0000 [0x0000] size = 0012 [0x000c] ----> node_local.label
* offset = 0012 [0x000c] size = 0256 [0x0100] ----> node_local.fname
* offset = 0268 [0x010c] size = 0036 [0x0024] ----> node_local.now_running
*
* This is so that the VERMISMATCH error can be successfully detected in db_init/mu_rndwn_file
* and so that the db-file-name can be successfully obtained from orphaned shm by mu_rndwn_all.
*/
assert(0 == OFFSETOF(node_local, label[0]));
assert(12 == SIZEOF(((node_local *)NULL)->label));
assert(12 == GDS_LABEL_SZ);
assert(12 == OFFSETOF(node_local, fname[0]));
assert(256 == SIZEOF(((node_local *)NULL)->fname));
assert(256 == (MAX_FN_LEN + 1));
assert(268 == OFFSETOF(node_local, now_running[0]));
assert(36 == SIZEOF(((node_local *)NULL)->now_running));
assert(36 == MAX_REL_NAME);
for (loopcnt = 0; loopcnt < MAX_DBFILOPN_RETRY_CNT; loopcnt++)
{
prev_reg = dbfilopn(reg);
if (prev_reg != reg)
{ /* (gd_region *)-1 == prev_reg => cm region open attempted */
if (NULL == prev_reg || (gd_region *)-1L == prev_reg)
return;
/* Found same database already open - prev_reg contains addr of originally opened region */
FILE_CNTL(reg) = FILE_CNTL(prev_reg);
memcpy(reg->dyn.addr->fname, prev_reg->dyn.addr->fname, prev_reg->dyn.addr->fname_len);
reg->dyn.addr->fname_len = prev_reg->dyn.addr->fname_len;
csa = (sgmnt_addrs *)&FILE_INFO(reg)->s_addrs;
if (NULL == csa->gvt_hashtab)
gvt_hashtab_init(csa); /* populate csa->gvt_hashtab; needed BEFORE PROCESS_GVT_PENDING_LIST */
PROCESS_GVT_PENDING_LIST(reg, csa);
csd = csa->hdr;
reg->max_rec_size = csd->max_rec_size;
reg->max_key_size = csd->max_key_size;
reg->null_subs = csd->null_subs;
reg->std_null_coll = csd->std_null_coll;
reg->jnl_state = csd->jnl_state;
reg->jnl_file_len = csd->jnl_file_len; /* journal file name length */
memcpy(reg->jnl_file_name, csd->jnl_file_name, reg->jnl_file_len); /* journal file name */
reg->jnl_alq = csd->jnl_alq;
reg->jnl_deq = csd->jnl_deq;
reg->jnl_buffer_size = csd->jnl_buffer_size;
reg->jnl_before_image = csd->jnl_before_image;
reg->dyn.addr->asyncio = csd->asyncio;
reg->dyn.addr->read_only = csd->read_only;
assert((RDBF_NOSTATS & csd->reservedDBFlags) ? (csa->reservedDBFlags == csd->reservedDBFlags)
: ((~RDBF_NOSTATS & csa->reservedDBFlags) == csd->reservedDBFlags)); /* suitably aligned*/
SYNC_RESERVEDDBFLAGS_REG_CSA_CSD(reg, csa, csd, ((node_local_ptr_t)NULL));
SET_REGION_OPEN_TRUE(reg, WAS_OPEN_TRUE);
assert(1 <= csa->regcnt);
csa->regcnt++; /* Increment # of regions that point to this csa */
return;
}
/* Note that if we are opening a statsDB, it is possible baseDBreg->was_open is TRUE at this point. */
reg->was_open = FALSE;
/* We shouldn't have crit on any region unless we are in TP and in the final retry or we are in mupip_set_journal
* trying to switch journals across all regions. WBTEST_HOLD_CRIT_ENABLED is an exception because it exercises a
* deadlock situation so it needs to hold multiple crits at the same time. Currently, there is no fine-granular
* checking for mupip_set_journal, hence a coarse MUPIP_IMAGE check for image_type.
*/
assert(dollar_tlevel && (CDB_STAGNATE <= t_tries) || IS_MUPIP_IMAGE || (0 == have_crit(CRIT_HAVE_ANY_REG))
|| WBTEST_ENABLED(WBTEST_HOLD_CRIT_ENABLED));
if (dollar_tlevel && (0 != have_crit(CRIT_HAVE_ANY_REG)))
{ /* To avoid deadlocks with currently holding crits and the DLM lock request to be done in "db_init",
* we should insert this region in the tp_reg_list and tp_restart should do the gvcst_init after
* having released crit on all regions.
*/
insert_region(reg, &tp_reg_list, &tp_reg_free_list, SIZEOF(tp_region));
t_retry(cdb_sc_needcrit);
assert(FALSE); /* should never reach here since t_retry should have unwound the M-stack and restarted TP */
}
csa = (sgmnt_addrs *)&FILE_INFO(reg)->s_addrs;
# ifdef NOLICENSE
licensed = TRUE;
# else
CRYPT_CHKSYSTEM;
# endif
csa->hdr = NULL;
csa->nl = NULL;
csa->jnl = NULL;
csa->gbuff_limit = 0;
csa->our_midnite = NULL;
csa->our_lru_cache_rec_off = 0;
csa->persistent_freeze = FALSE; /* want secshr_db_clnup() to clear an incomplete freeze/unfreeze codepath */
csa->regcnt = 1; /* At this point, only one region points to this csa */
csa->db_addrs[0] = csa->db_addrs[1] = NULL;
csa->mlkctl = NULL;
csa->mlkctl_len = 0;
csa->mlkhash = NULL;
csa->gd_ptr = addr ? addr : gd_header;
if (csa->gd_ptr)
csa->gd_instinfo = csa->gd_ptr->instinfo;
if ((IS_GTM_IMAGE || !pool_init) && jnlpool_init_needed && CUSTOM_ERRORS_AVAILABLE && REPL_ALLOWED(csa)
&& REPL_INST_AVAILABLE(addr))
{
replpool_valid = TRUE;
jnlpool_init(GTMRELAXED, (boolean_t)FALSE, (boolean_t *)NULL, addr);
status = filename_to_id(&replfile_gdid, replpool_id.instfilename); /* set by REPL_INST_AVAILABLE */
replfilegdid_valid = (SS_NORMAL == status);
} else
replpool_valid = replfilegdid_valid = FALSE;
/* Any LSEEKWRITEs hence forth will wait if the instance is frozen. To aid in printing the region information before
* and after the wait, csa->region is referenced. Since it is NULL at this point, set it to reg. This is a safe
* thing to do since csa->region is anyways set in db_common_init (few lines below).
*/
csa->region = reg;
/* Protect the db_init and the code below until we set reg->open to TRUE. This is needed as otherwise,
* if a MUPIP STOP is issued to this process at a time-window when db_init is completed but reg->open
* is NOT set to TRUE, will cause gds_rundown NOT to clean up the shared memory created by db_init and
* thus would be left over in the system.
*/
DEFER_INTERRUPTS(INTRPT_IN_GVCST_INIT, prev_intrpt_state);
assert(INTRPT_OK_TO_INTERRUPT == prev_intrpt_state); /* relied upon by ENABLE_INTERRUPTS
* in dbinit_ch and gvcst_init_autoDB_ch
*/
/* Do a loop of "db_init". This is to account for the fact that "db_init" can return an error in some cases.
* e.g. If DSE does "db_init" first time with OK_TO_BYPASS_TRUE and somewhere in the middle of "db_init" it
* notices that a concurrent mumps process has deleted the semid/shmid since it was the last process attached
* to the db. In this case we retry the "db_init" a few times and the last time we retry with OK_TO_BYPASS_FALSE
* even if this is DSE.
*/
db_init_retry = 0;
GTM_WHITE_BOX_TEST(WBTEST_HOLD_FTOK_UNTIL_BYPASS, db_init_retry, MAX_DBINIT_RETRY);
do
{
db_init_ret = db_init(reg, (MAX_DBINIT_RETRY == db_init_retry) ? OK_TO_BYPASS_FALSE : OK_TO_BYPASS_TRUE);
if (0 == db_init_ret)
break;
if (-1 == db_init_ret)
{
assert(MAX_DBINIT_RETRY > db_init_retry);
retry_dbinit = TRUE;
} else
{ /* Set "retry_dbinit" to FALSE that way "db_init_err_cleanup" call below takes care of
* closing udi->fd opened in "dbfilopn" call early in this iteration. This avoids fd leak
* since another call to "dbfilopn" in the next iteration would not know about the previous fd.
*/
retry_dbinit = FALSE;
}
db_init_err_cleanup(retry_dbinit);
if (!retry_dbinit)
break;
} while (MAX_DBINIT_RETRY >= ++db_init_retry);
assert(-1 != db_init_ret);
if (0 == db_init_ret)
break;
if (ERR_DBGLDMISMATCH == db_init_ret)
{ /* "db_init" would have adjusted seg->asyncio to reflect the db file header's asyncio settings.
* Retry but do not count this try towards the total tries as otherwise it is theoretically possible
* for the db fileheader to be recreated with just the opposite asyncio setting in each try and
* we might eventually error out when "loopcnt" is exhausted. Not counting this try implies we
* might loop indefinitely but the chances are infinitesimally small. And since this error is never
* issued, the user should never expect to see this and hence this error is not documented.
*/
loopcnt--;
}
}
if (db_init_ret)
{
assert(FALSE); /* we don't know of a practical way to get errors in each of the for-loop attempts above */
/* "db_init" returned with an unexpected error. Issue a generic error to note this out-of-design state */
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(6) ERR_REGOPENFAIL, 4, REG_LEN_STR(reg), DB_LEN_STR(reg));
}
/* At this point, we have initialized the database, but haven't yet set reg->open to TRUE. If any rts_errors happen in
* the meantime, there are no condition handlers established to handle the rts_error. More importantly, it is non-trivial
* to add logic to such a condition handler to undo the effects of db_init. Also, in some cases, the rts_error can can
* confuse future calls of db_init. By invoking DBG_MARK_RTS_ERROR_UNUSABLE, we can catch any rts_errors in future and
* eliminate it on a case by case basis.
*/
DBG_MARK_RTS_ERROR_UNUSABLE;
UPDATE_CRASH_COUNT(csa, crash_count);
csa->regnum = ++region_open_count;
csd = csa->hdr;
# ifdef GTM_TRIGGER
/* Take copy of db trigger cycle into csa at db startup. Any concurrent changes to the
* db trigger cycle (by MUPIP TRIGGER) will be detected at tcommit (t_end/tp_tend) time.
*/
csa->db_trigger_cycle = csd->db_trigger_cycle;
# endif
/* set csd and fill in selected fields */
assert(REG_ACC_METH(reg) == csd->acc_meth); /* db_init should have made sure this assert holds good */
reg_acc_meth = csd->acc_meth;
/* It is necessary that we do the pending gv_target list reallocation BEFORE db_common_init as the latter resets
* reg->max_key_size to be equal to the csd->max_key_size and hence process_gvt_pending_list might wrongly conclude
* that NO reallocation (since it checks reg->max_key_size with csd->max_key_size) is needed when in fact a
* reallocation might be necessary (if the user changed max_key_size AFTER database creation)
*/
PROCESS_GVT_PENDING_LIST(reg, csa);
db_common_init(reg, csa, csd); /* do initialization common to db_init() and mu_rndwn_file() */
/* If we are not fully upgraded, see if we need to send a warning to the operator console about
performance. Compatibility mode is a known performance drain. Actually, we can send one of two
messages. If the desired_db_format is for an earlier release than the current release, we send
a performance warning that this mode degrades performance. However, if the desired_db_format is
for the current version but there are blocks to convert still, we send a gengle reminder that
running mupip reorg upgrade would be a good idea to get the full performance benefit of V5.
*/
time(&curr_time);
assert(MAXUINT4 > curr_time);
curr_time_uint4 = (uint4)curr_time;
next_warn_uint4 = csd->next_upgrd_warn.cas_time;
if (!csd->fully_upgraded && curr_time_uint4 > next_warn_uint4
&& COMPSWAP_LOCK(&csd->next_upgrd_warn.time_latch, next_warn_uint4, 0, (curr_time_uint4 + UPGRD_WARN_INTERVAL), 0))
{ /* The msg is due and we have successfully updated the next time interval */
if (GDSVCURR != csd->desired_db_format)
send_msg_csa(CSA_ARG(csa) VARLSTCNT(4) ERR_DBVERPERFWARN1, 2, DB_LEN_STR(reg));
else
send_msg_csa(CSA_ARG(csa) VARLSTCNT(4) ERR_DBVERPERFWARN2, 2, DB_LEN_STR(reg));
}
csa->lock_crit_with_db = csd->lock_crit_with_db; /* put a copy in csa where it's cheaper for mlk* to access */
/* Compute the maximum journal space requirements for a PBLK (including possible ALIGN record).
* Use this variable in the TOTAL_TPJNL_REC_SIZE and TOTAL_NONTP_JNL_REC_SIZE macros instead of recomputing.
*/
csa->pblk_align_jrecsize = (int4)MIN_PBLK_RECLEN + csd->blk_size + (int4)MIN_ALIGN_RECLEN;
segment_update_array_size = UA_SIZE(csd);
assert(!reg->was_open);
SET_REGION_OPEN_TRUE(reg, WAS_OPEN_FALSE);
GTM_FD_TRACE_ONLY(gtm_dbjnl_dupfd_check()); /* check if any of db or jnl fds collide (D9I11-002714) */
if (NULL != csa->dir_tree)
{ /* It is possible that dir_tree has already been targ_alloc'ed. This is because GT.CM or VMS DAL
* calls can run down regions without the process halting out. We don't want to double malloc.
*/
csa->dir_tree->clue.end = 0;
}
SET_CSA_DIR_TREE(csa, reg->max_key_size, reg);
assert(reg->open);
/* Now that reg->open is set to TRUE and directory tree is initialized, go ahead and set rts_error back to being usable */
DBG_MARK_RTS_ERROR_USABLE;
/* Do the deferred encryption initialization now in case it needs to issue an rts_error */
INIT_DEFERRED_DB_ENCRYPTION_IF_NEEDED(reg, csa, csd);
/* gds_rundown if invoked from now on will take care of cleaning up the shared memory segment */
/* The below code, until the ENABLE_INTERRUPTS(INTRPT_IN_GVCST_INIT, prev_intrpt_state), can do mallocs which in turn
* can issue a GTM-E-MEMORY error which would invoke rts_error. Hence these have to be done AFTER the
* DBG_MARK_RTS_ERROR_USABLE call. Since these are only private memory initializations, it is safe to
* do these after reg->open is set. Any rts_errors from now on still do the needful cleanup of shared memory in
* gds_rundown since reg->open is already TRUE.
*/
if (first_ua == NULL)
{ /* first open of first database - establish an update array system */
assert(update_array == NULL);
assert(update_array_ptr == NULL);
assert(update_array_size == 0);
tmp_ua = (ua_list *)malloc(SIZEOF(ua_list));
memset(tmp_ua, 0, SIZEOF(ua_list)); /* initialize tmp_ua->update_array and tmp_ua->next_ua to NULL */
tmp_ua->update_array = (char *)malloc(segment_update_array_size);
tmp_ua->update_array_size = segment_update_array_size;
/* assign global variables only after malloc() succeeds */
update_array_size = cumul_update_array_size = segment_update_array_size;
update_array = update_array_ptr = tmp_ua->update_array;
first_ua = curr_ua = tmp_ua;
} else
{ /* there's already an update_array system in place */
assert(update_array != NULL);
assert(update_array_size != 0);
if (!dollar_tlevel && segment_update_array_size > first_ua->update_array_size)
{
/* no transaction in progress and the current array is too small - replace it */
assert(first_ua->update_array == update_array);
assert(first_ua->update_array_size == update_array_size);
assert(first_ua->next_ua == NULL);
tmp_ua = first_ua;
first_ua = curr_ua = NULL;
free(update_array);
tmp_ua->update_array = update_array = update_array_ptr = NULL;
tmp_ua->update_array = (char *)malloc(segment_update_array_size);
tmp_ua->update_array_size = segment_update_array_size;
/* assign global variables only after malloc() succeeds */
update_array_size = cumul_update_array_size = segment_update_array_size;
update_array = update_array_ptr = tmp_ua->update_array;
first_ua = curr_ua = tmp_ua;
}
}
assert(global_tlvl_info_list || !csa->sgm_info_ptr);
if (JNL_ALLOWED(csa))
{
bsize = csd->blk_size;
realloc_alt_buff = FALSE;
if (NULL == non_tp_jfb_ptr)
{
non_tp_jfb_ptr = (jnl_format_buffer *)malloc(SIZEOF(jnl_format_buffer));
non_tp_jfb_ptr->hi_water_bsize = bsize;
non_tp_jfb_ptr->buff = (char *)malloc(MAX_NONTP_JNL_REC_SIZE(bsize));
non_tp_jfb_ptr->record_size = 0; /* initialize it to 0 since TOTAL_NONTPJNL_REC_SIZE macro uses it */
non_tp_jfb_ptr->alt_buff = NULL;
assert(NULL == TREF(nontp_jbuf_rsrv));
ALLOC_JBUF_RSRV_STRUCT(nontp_jbuf_rsrv_lcl, csa);
TREF(nontp_jbuf_rsrv) = nontp_jbuf_rsrv_lcl;
} else if (bsize > non_tp_jfb_ptr->hi_water_bsize)
{ /* Need a larger buffer to accommodate larger non-TP journal records */
non_tp_jfb_ptr->hi_water_bsize = bsize;
free(non_tp_jfb_ptr->buff);
non_tp_jfb_ptr->buff = (char *)malloc(MAX_NONTP_JNL_REC_SIZE(bsize));
if (NULL != non_tp_jfb_ptr->alt_buff)
{
free(non_tp_jfb_ptr->alt_buff);
realloc_alt_buff = TRUE;
}
assert(NULL != TREF(nontp_jbuf_rsrv));
}
/* If the journal records need to be encrypted in the journal file and if replication is in use, we will need access
* to both the encrypted (for the journal file) and unencrypted (for the journal pool) journal record contents.
* Allocate an alternative buffer if any open journaled region is encrypted.
*/
if (realloc_alt_buff || (USES_ENCRYPTION(csd->is_encrypted) && (NULL == non_tp_jfb_ptr->alt_buff)))
non_tp_jfb_ptr->alt_buff = (char *)malloc(MAX_NONTP_JNL_REC_SIZE(non_tp_jfb_ptr->hi_water_bsize));
/* csa->min_total_tpjnl_rec_size represents the minimum journal buffer space needed for a TP transaction.
* It is a conservative estimate assuming that one ALIGN record and one PINI record will be written for
* one set of fixed size jnl records written.
* si->total_jnl_rec_size is initialized/reinitialized to this value here and in tp_clean_up().
* The purpose of this field is to avoid recomputation of the variable in tp_clean_up().
* In addition to this, space requirements for whatever journal records get formatted as part of
* jnl_format() need to be taken into account.
* This is done in jnl_format() where si->total_jnl_rec_size is appropriately incremented.
*/
csa->min_total_tpjnl_rec_size = PINI_RECLEN + TCOM_RECLEN + MIN_ALIGN_RECLEN;
/* Similarly csa->min_total_nontpjnl_rec_size represents the minimum journal buffer space needed
* for a non-TP transaction.
* It is a conservative estimate assuming that one ALIGN record and one PINI record will be written for
* one set of fixed size jnl records written.
*/
csa->min_total_nontpjnl_rec_size = PINI_RECLEN + MIN_ALIGN_RECLEN;
}
if (tp_in_use || !IS_GTM_IMAGE)
gvcst_tp_init(reg); /* Initialize TP structures, else postpone till TP is used (only if GTM) */
if (!global_tlvl_info_list)
{
global_tlvl_info_list = (buddy_list *)malloc(SIZEOF(buddy_list));
initialize_list(global_tlvl_info_list, SIZEOF(global_tlvl_info), GBL_TLVL_INFO_LIST_INIT_ALLOC);
}
ENABLE_INTERRUPTS(INTRPT_IN_GVCST_INIT, prev_intrpt_state);
if (dba_bg == reg_acc_meth)
{ /* Check if (a) this region has non-upgraded blocks and if so, (b) the reformat buffer exists and
* (c) if it is big enough to deal with this region. If the region does not have any non-upgraded
* block (blks_to_upgrd is 0) we will not allocate the buffer at this time. Note that this opens up
* a small window for errors. If this buffer is not allocated and someone turns on compatibility
* mode and before the process can discover this and allocate the buffer, it runs out of memory,
* errors out and finds it is responsible for running down the database, it could fail on a recursive
* memory error when it tries to allocate the block. This is (to me) an acceptable risk as it is
* very low and compares favorably to the cost of every process allocating a database block sized
* chunk of private storage that will be seldom if ever used (SE 3/2005).
*/
if (0 != csd->blks_to_upgrd && csd->blk_size > reformat_buffer_len)
{ /* Buffer not big enough (or does not exist) .. get a new one releasing old if it exists */
assert(0 == fast_lock_count); /* this is mainline (non-interrupt) code */
++fast_lock_count; /* No interrupts across this use of reformat_buffer */
/* reformat_buffer_in_use should always be incremented only AFTER incrementing fast_lock_count
* as it is the latter that prevents interrupts from using the reformat buffer. Similarly
* the decrement of fast_lock_count should be done AFTER decrementing reformat_buffer_in_use.
*/
assert(0 == reformat_buffer_in_use);
DEBUG_ONLY(reformat_buffer_in_use++);
if (reformat_buffer)
free(reformat_buffer); /* Different blksized databases in use .. keep only largest one */
reformat_buffer = malloc(csd->blk_size);
reformat_buffer_len = csd->blk_size;
DEBUG_ONLY(reformat_buffer_in_use--);
assert(0 == reformat_buffer_in_use);
--fast_lock_count;
}
assert(MV_STR & (TREF(gbuff_limit)).mvtype);
if (mu_reorg_process && (0 == (TREF(gbuff_limit)).str.len))
{ /* if the environment variable wasn't supplied, use the default for REORG */
(TREF(gbuff_limit)).str.len = SIZEOF(REORG_GBUFF_LIMIT);
(TREF(gbuff_limit)).str.addr = malloc(SIZEOF(REORG_GBUFF_LIMIT));
memcpy((TREF(gbuff_limit)).str.addr, REORG_GBUFF_LIMIT, SIZEOF(REORG_GBUFF_LIMIT));
}
if ((mu_reorg_process DEBUG_ONLY(|| IS_GTM_IMAGE)) && (0 != (TREF(gbuff_limit)).str.len))
{ /* if reorg or dbg apply env var */
set_gbuff_limit(&csa, &csd, &(TREF(gbuff_limit)));
# ifdef DEBUG
if ((process_id & 2) && (process_id & (csd->n_bts - 1))) /* also randomize our_midnite */
{
csa->our_midnite = csa->acc_meth.bg.cache_state->cache_array + csd->bt_buckets;
csa->our_midnite += (process_id & (csd->n_bts - 1));
assert((csa->acc_meth.bg.cache_state->cache_array + csd->bt_buckets + csd->n_bts)
> csa->our_midnite);
cr = csa->our_midnite - csa->gbuff_limit;
if (cr < csa->acc_meth.bg.cache_state->cache_array + csd->bt_buckets)
cr += csd->n_bts;
csa->our_lru_cache_rec_off = GDS_ANY_ABS2REL(csa, cr);
}
assert((csa->acc_meth.bg.cache_state->cache_array + csd->bt_buckets) < csa->our_midnite);
# endif
}
}
if (IS_ACC_METH_BG_OR_MM(reg_acc_meth))
{
/* Determine fid_index of current region's file_id across sorted file_ids of all regions open until now.
* All regions which have a file_id lesser than that of current region will have no change to their fid_index
* All regions which have a file_id greater than that of current region will have their fid_index incremented by 1
* The fid_index determination algorithm below has an optimization in that if the current region's file_id is
* determined to be greater than that of a particular region, then all regions whose fid_index is lesser
* than that particular region's fid_index are guaranteed to have a lesser file_id than the current region
* so we do not compare those against the current region's file_id.
* Note that the sorting is done only on DB/MM regions. GT.CM/DDP regions should not be part of TP transactions,
* hence they will not be sorted.
*/
prevcsa = NULL;
reg_fid = &(csa->nl->unique_id);
max_fid_index = 1;
for (regcsa = cs_addrs_list; NULL != regcsa; regcsa = regcsa->next_csa)
{
onln_rlbk_cycle_mismatch |= (regcsa->db_onln_rlbkd_cycle != regcsa->nl->db_onln_rlbkd_cycle);
if ((NULL != prevcsa) && (regcsa->fid_index < prevcsa->fid_index))
continue;
tmp_reg_fid = &((regcsa)->nl->unique_id);
if (0 < gdid_cmp(&(reg_fid->uid), &(tmp_reg_fid->uid)))
{
if ((NULL == prevcsa) || (regcsa->fid_index > prevcsa->fid_index))
prevcsa = regcsa;
} else
{
regcsa->fid_index++;
max_fid_index = MAX(max_fid_index, regcsa->fid_index);
}
}
if (NULL == prevcsa)
csa->fid_index = 1;
else
{
csa->fid_index = prevcsa->fid_index + 1;
max_fid_index = MAX(max_fid_index, csa->fid_index);
}
if (onln_rlbk_cycle_mismatch)
{
csa->root_search_cycle--;
if (REPL_ALLOWED(csd))
{
csa->onln_rlbk_cycle--;
csa->db_onln_rlbkd_cycle--;
}
}
/* Add current csa into list of open csas */
csa->next_csa = cs_addrs_list;
cs_addrs_list = csa;
/* Also update tp_reg_list fid_index's as insert_region relies on it */
for (tr = tp_reg_list; NULL != tr; tr = tr->fPtr)
tr->fid_index = (&FILE_INFO(tr->reg)->s_addrs)->fid_index;
DBG_CHECK_TP_REG_LIST_SORTING(tp_reg_list);
TREF(max_fid_index) = max_fid_index;
}
if (pool_init && REPL_ALLOWED(csd) && jnlpool_init_needed)
{
/* Last parameter to VALIDATE_INITIALIZED_JNLPOOL is TRUE if the process does logical updates and FALSE otherwise.
* This parameter governs whether the macro can do SCNDDBNOUPD check or not. All the utilities that sets
* jnlpool_init_needed global variable don't do logical updates (REORG, EXTEND, etc.). But, for GT.M,
* jnlpool_init_needed is set to TRUE unconditionally. Even though GT.M can do logical updates, we pass FALSE
* unconditionally to the macro (indicating no logical updates). This is because, at this point, there is no way to
* tell if this process wants to open the database for read or write operation. If it is for a read operation, we
* don't want the below macro to issue SCNDDBNOUPD error. If it is for write operation, we will skip the
* SCNDDBNOUPD error message here. But, eventually when this process goes to gvcst_{put,kill} or op_ztrigger,
* SCNDDBNOUPD is issued.
*/
save_jnlpool = jnlpool;
if (IS_GTM_IMAGE)
{ /* csa->jnlpool not set until validate jnlpool so need to compare gd_id of instance file */
if (!replfilegdid_valid)
{
assertpro(replpool_valid || REPL_INST_AVAILABLE(addr)); /* if any pool inited this should succeed */
status = filename_to_id(&replfile_gdid, replpool_id.instfilename);
replfilegdid_valid = (SS_NORMAL == status);
}
if (replfilegdid_valid)
{
if (jnlpool && jnlpool->pool_init)
{
tmp_gdid = &FILE_ID(jnlpool->jnlpool_dummy_reg);
if (!gdid_cmp(tmp_gdid, &replfile_gdid))
jnlpool_found = TRUE;
}
if (!jnlpool_found)
for (jnlpool = jnlpool_head; jnlpool; jnlpool = jnlpool->next)
if (jnlpool->pool_init)
{
tmp_gdid = &FILE_ID(jnlpool->jnlpool_dummy_reg);
if (!gdid_cmp(tmp_gdid, &replfile_gdid))
{
jnlpool_found = TRUE;
break;
}
}
if (!jnlpool_found)
{
jnlpool_init(GTMRELAXED, (boolean_t)FALSE, (boolean_t *)NULL, addr);
tmp_gdid = &FILE_ID(jnlpool->jnlpool_dummy_reg);
if (!gdid_cmp(tmp_gdid, &replfile_gdid))
jnlpool_found = TRUE;
}
}
} else
{
assertpro(jnlpool); /* only one for utilities */
jnlpool_found = TRUE;
}
if (jnlpool_found)
VALIDATE_INITIALIZED_JNLPOOL(csa, csa->nl, reg, GTMRELAXED, SCNDDBNOUPD_CHECK_FALSE);
if (save_jnlpool != jnlpool)
jnlpool = save_jnlpool;
}
/* At this point, the database is officially open but one of two condition can exist here where we need to do more work:
* 1. This was a normal database open and this process has opted-in for global shared stats so we need to also open
* the associated statsDB (IF the baseDB does not have the NOSTATS qualifier).
* 2. We are opening a statsDB in which case we are guaranteed the baseDB has already been open (assert at start of
* this function). The baseDB open would have done the needed initialization for the statsDB in a lot of cases.
* But in case it did not (e.g. TREF(statshare_opted_in) is FALSE), keep the statsDB open read-only until the
* initialization happens later (when TREF(statshare_opted_in) becomes TRUE again).
* Note since this database is officially opened and has gone through db_init(), the current reservedDBFlags in all of
* region, sgmnt_addrs, and sgmnt_data are sync'd to the value that was in sgmnt_data (fileheader).
*/
if (!IS_DSE_IMAGE)
{ /* DSE does not open statsdb automatically. It does it only when asked to */
if (NO_STATS_OPTIN != TREF(statshare_opted_in))
{
if (!is_statsDB)
{ /* This is a baseDB - so long if all in, we should initialize the statsDB */
if (!(RDBF_NOSTATS & reg->reservedDBFlags) && (ALL_STATS_OPTIN == TREF(statshare_opted_in)))
{
BASEDBREG_TO_STATSDBREG(reg, statsDBreg);
assert(NULL != statsDBreg);
if (!statsDBreg->statsDB_setup_started)
{ /* The associated statsDB may or may not be open but it hasn't been initialized
* so take care of that now. Put a handler around it so if the open of the statsDB
* file fails for whatever reason, we can ignore it and just keep going.
*/
statsDBreg->statsDB_setup_started = TRUE;
gvcst_init_statsDB(reg, DO_STATSDB_INIT_TRUE);
}
} else
csa->reservedDBFlags |= RDBF_NOSTATS;
}
} else if (is_statsDB)
{ /* We are opening a statsDB file but not as a statsDB (i.e. not opted-in) but we still need to set the
* database to R/O mode so it is only updated by GTM's C code and never in M mode which could lead to
* too-small records being added that would cause the gvstats records to move which must never happen.
* For DSE, we want it to open the db R/W (in case we need some repair of the statsdb).
* So skip this R/O setting for DSE.
*/
assert(!reg->was_open);
reg->read_only = TRUE;
csa->read_write = FALSE; /* Maintain read_only/read_write in parallel */
}
}
return;
}
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