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/* api_replicate.cc: tests of replication functionality
*
* Copyright 2008 Lemur Consulting Ltd
* Copyright 2009,2010,2011,2012,2013,2014,2015,2016 Olly Betts
* Copyright 2010 Richard Boulton
* Copyright 2011 Dan Colish
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include <config.h>
#include "api_replicate.h"
#include <xapian.h>
#include "api/replication.h"
#include "apitest.h"
#include "dbcheck.h"
#include "fd.h"
#include "filetests.h"
#include "safedirent.h"
#include "safeerrno.h"
#include "safefcntl.h"
#include "safesysstat.h"
#include "safeunistd.h"
#include "testsuite.h"
#include "testutils.h"
#include "unixcmds.h"
#include <sys/types.h>
#include <cstdlib>
#include <string>
#include <stdlib.h> // For setenv() or putenv()
using namespace std;
static void rmtmpdir(const string & path) {
rm_rf(path);
}
static void mktmpdir(const string & path) {
rmtmpdir(path);
if (mkdir(path.c_str(), 0700) == -1 && errno != EEXIST) {
FAIL_TEST("Can't make temporary directory");
}
}
static off_t get_file_size(const string & path) {
off_t size = file_size(path);
if (errno) {
FAIL_TEST("Can't stat '" << path << "'");
}
return size;
}
static size_t do_read(int fd, char * p, size_t desired)
{
size_t total = 0;
while (desired) {
ssize_t c = read(fd, p, desired);
if (c == 0) return total;
if (c < 0) {
if (errno == EINTR) continue;
FAIL_TEST("Error reading from file");
}
p += c;
total += c;
desired -= c;
}
return total;
}
static void do_write(int fd, const char * p, size_t n)
{
while (n) {
ssize_t c = write(fd, p, n);
if (c < 0) {
if (errno == EINTR) continue;
FAIL_TEST("Error writing to file");
}
p += c;
n -= c;
}
}
// Make a truncated copy of a file.
static off_t
truncated_copy(const string & srcpath, const string & destpath, off_t tocopy)
{
FD fdin(open(srcpath.c_str(), O_RDONLY | O_BINARY));
if (fdin == -1) {
FAIL_TEST("Open failed (when opening '" << srcpath << "')");
}
FD fdout(open(destpath.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666));
if (fdout == -1) {
FAIL_TEST("Open failed (when creating '" << destpath << "')");
}
const int BUFSIZE = 1024;
char buf[BUFSIZE];
size_t total_bytes = 0;
while (tocopy > 0) {
size_t thiscopy = tocopy > BUFSIZE ? BUFSIZE : tocopy;
size_t bytes = do_read(fdin, buf, thiscopy);
if (thiscopy != bytes) {
FAIL_TEST("Couldn't read desired number of bytes from changeset");
}
tocopy -= bytes;
total_bytes += bytes;
do_write(fdout, buf, bytes);
}
if (close(fdout) == -1)
FAIL_TEST("Error closing file");
return total_bytes;
}
static void
get_changeset(const string & changesetpath,
Xapian::DatabaseMaster & master,
Xapian::DatabaseReplica & replica,
int expected_changesets,
int expected_fullcopies,
bool expected_changed,
bool full_copy = false)
{
FD fd(open(changesetpath.c_str(), O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666));
if (fd == -1) {
FAIL_TEST("Open failed (when creating a new changeset file at '"
<< changesetpath << "')");
}
Xapian::ReplicationInfo info1;
master.write_changesets_to_fd(fd,
full_copy ? "" : replica.get_revision_info(),
&info1);
TEST_EQUAL(info1.changeset_count, expected_changesets);
TEST_EQUAL(info1.fullcopy_count, expected_fullcopies);
TEST_EQUAL(info1.changed, expected_changed);
}
static int
apply_changeset(const string & changesetpath,
Xapian::DatabaseReplica & replica,
int expected_changesets,
int expected_fullcopies,
bool expected_changed)
{
FD fd(open(changesetpath.c_str(), O_RDONLY | O_BINARY));
if (fd == -1) {
FAIL_TEST("Open failed (when reading changeset file at '"
<< changesetpath << "')");
}
int count = 1;
replica.set_read_fd(fd);
Xapian::ReplicationInfo info1;
Xapian::ReplicationInfo info2;
bool client_changed = false;
while (replica.apply_next_changeset(&info2, 0)) {
++count;
info1.changeset_count += info2.changeset_count;
info1.fullcopy_count += info2.fullcopy_count;
if (info2.changed)
client_changed = true;
}
info1.changeset_count += info2.changeset_count;
info1.fullcopy_count += info2.fullcopy_count;
if (info2.changed)
client_changed = true;
TEST_EQUAL(info1.changeset_count, expected_changesets);
TEST_EQUAL(info1.fullcopy_count, expected_fullcopies);
TEST_EQUAL(client_changed, expected_changed);
return count;
}
// Replicate from the master to the replica.
// Returns the number of changesets which were applied.
static int
replicate(Xapian::DatabaseMaster & master,
Xapian::DatabaseReplica & replica,
const string & tempdir,
int expected_changesets,
int expected_fullcopies,
bool expected_changed,
bool full_copy = false)
{
string changesetpath = tempdir + "/changeset";
get_changeset(changesetpath, master, replica,
expected_changesets,
expected_fullcopies,
expected_changed,
full_copy);
return apply_changeset(changesetpath, replica,
expected_changesets,
expected_fullcopies,
expected_changed);
}
// Check that the databases held at the given path are identical.
static void
check_equal_dbs(const string & masterpath, const string & replicapath)
{
Xapian::Database master(masterpath);
Xapian::Database replica(replicapath);
TEST_EQUAL(master.get_uuid(), master.get_uuid());
dbcheck(replica, master.get_doccount(), master.get_lastdocid());
for (Xapian::TermIterator t = master.allterms_begin();
t != master.allterms_end(); ++t) {
TEST_EQUAL(postlist_to_string(master, *t),
postlist_to_string(replica, *t));
}
}
#if 0 // Dynamic version which we don't currently need.
static void
set_max_changesets(int count) {
#ifdef HAVE__PUTENV_S
_putenv_s("XAPIAN_MAX_CHANGESETS", str(count).c_str());
#elif defined HAVE_SETENV
setenv("XAPIAN_MAX_CHANGESETS", str(count).c_str(), 1);
#else
static char buf[64] = "XAPIAN_MAX_CHANGESETS=";
sprintf(buf + CONST_STRLEN("XAPIAN_MAX_CHANGESETS="), "%d", count);
putenv(buf);
#endif
}
#endif
#ifdef HAVE__PUTENV_S
# define set_max_changesets(N) _putenv_s("XAPIAN_MAX_CHANGESETS", #N)
#elif defined HAVE_SETENV
# define set_max_changesets(N) setenv("XAPIAN_MAX_CHANGESETS", #N, 1)
#else
# define set_max_changesets(N) putenv(const_cast<char*>("XAPIAN_MAX_CHANGESETS="#N))
#endif
struct unset_max_changesets_helper_ {
unset_max_changesets_helper_() { }
~unset_max_changesets_helper_() { set_max_changesets(0); }
};
// Ensure that we don't leave generation of changesets on for the next
// testcase, even if this one exits with an exception.
#define UNSET_MAX_CHANGESETS_AFTERWARDS unset_max_changesets_helper_ ezlxq
// #######################################################################
// # Tests start here
// Basic test of replication functionality.
DEFINE_TESTCASE(replicate1, replicas) {
UNSET_MAX_CHANGESETS_AFTERWARDS;
string tempdir = ".replicatmp";
mktmpdir(tempdir);
string masterpath = get_named_writable_database_path("master");
set_max_changesets(10);
Xapian::Document doc1;
doc1.set_data(string("doc1"));
doc1.add_posting("doc", 1);
doc1.add_posting("one", 1);
Xapian::WritableDatabase orig(get_named_writable_database("master"));
Xapian::DatabaseMaster master(masterpath);
string replicapath = tempdir + "/replica";
{
Xapian::DatabaseReplica replica(replicapath);
// Add a document to the original database.
orig.add_document(doc1);
orig.commit();
// Apply the replication - we don't have changesets stored, so this
// should just do a database copy, and return a count of 1.
int count = replicate(master, replica, tempdir, 0, 1, true);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
// Repeating the replication should return a count of 1, since no
// further changes should need to be applied.
count = replicate(master, replica, tempdir, 0, 0, false);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
}
{
// Regression test - if the replica was reopened, a full copy always
// used to occur, whether it was needed or not. Fixed in revision
// #10117.
Xapian::DatabaseReplica replica(replicapath);
int count = replicate(master, replica, tempdir, 0, 0, false);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
orig.add_document(doc1);
orig.commit();
orig.add_document(doc1);
orig.commit();
count = replicate(master, replica, tempdir, 2, 0, true);
TEST_EQUAL(count, 3);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
// We need this inner scope to we close the replica before we remove
// the temporary directory on Windows.
}
rmtmpdir(tempdir);
return true;
}
// Test replication from a replicated copy.
DEFINE_TESTCASE(replicate2, replicas) {
SKIP_TEST_FOR_BACKEND("glass"); // Glass doesn't currently support this.
UNSET_MAX_CHANGESETS_AFTERWARDS;
string tempdir = ".replicatmp";
mktmpdir(tempdir);
string masterpath = get_named_writable_database_path("master");
set_max_changesets(10);
{
Xapian::WritableDatabase orig(get_named_writable_database("master"));
Xapian::DatabaseMaster master(masterpath);
string replicapath = tempdir + "/replica";
Xapian::DatabaseReplica replica(replicapath);
Xapian::DatabaseMaster master2(replicapath);
string replica2path = tempdir + "/replica2";
Xapian::DatabaseReplica replica2(replica2path);
// Add a document to the original database.
Xapian::Document doc1;
doc1.set_data(string("doc1"));
doc1.add_posting("doc", 1);
doc1.add_posting("one", 1);
orig.add_document(doc1);
orig.commit();
// Apply the replication - we don't have changesets stored, so this
// should just do a database copy, and return a count of 1.
TEST_EQUAL(replicate(master, replica, tempdir, 0, 1, true), 1);
check_equal_dbs(masterpath, replicapath);
// Replicate from the replica.
TEST_EQUAL(replicate(master2, replica2, tempdir, 0, 1, true), 1);
check_equal_dbs(masterpath, replica2path);
orig.add_document(doc1);
orig.commit();
orig.add_document(doc1);
orig.commit();
// Replicate from the replica - should have no changes.
TEST_EQUAL(replicate(master2, replica2, tempdir, 0, 0, false), 1);
check_equal_dbs(replicapath, replica2path);
// Replicate, and replicate from the replica - should have 2 changes.
TEST_EQUAL(replicate(master, replica, tempdir, 2, 0, 1), 3);
check_equal_dbs(masterpath, replicapath);
TEST_EQUAL(replicate(master2, replica2, tempdir, 2, 0, 1), 3);
check_equal_dbs(masterpath, replica2path);
// Stop writing changesets, and make a modification
set_max_changesets(0);
orig.close();
orig = get_writable_database_again();
orig.add_document(doc1);
orig.commit();
// Replication should do a full copy.
TEST_EQUAL(replicate(master, replica, tempdir, 0, 1, true), 1);
check_equal_dbs(masterpath, replicapath);
TEST_EQUAL(replicate(master2, replica2, tempdir, 0, 1, true), 1);
check_equal_dbs(masterpath, replica2path);
// Start writing changesets, but only keep 1 in history, and make a
// modification.
set_max_changesets(1);
orig.close();
orig = get_writable_database_again();
orig.add_document(doc1);
orig.commit();
// Replicate, and replicate from the replica - should have 1 changes.
TEST_EQUAL(replicate(master, replica, tempdir, 1, 0, 1), 2);
check_equal_dbs(masterpath, replicapath);
TEST_EQUAL(replicate(master2, replica2, tempdir, 1, 0, 1), 2);
check_equal_dbs(masterpath, replica2path);
// Make two changes - only one changeset should be preserved.
orig.add_document(doc1);
orig.commit();
// Replication should do a full copy, since one of the needed
// changesets is missing.
//FIXME - the following tests are commented out because the backends
//don't currently tidy up old changesets correctly.
//TEST_EQUAL(replicate(master, replica, tempdir, 0, 1, true), 1);
//check_equal_dbs(masterpath, replicapath);
//TEST_EQUAL(replicate(master2, replica2, tempdir, 0, 1, true), 1);
//check_equal_dbs(masterpath, replica2path);
// We need this inner scope to we close the replicas before we remove
// the temporary directory on Windows.
}
rmtmpdir(tempdir);
return true;
}
static void
replicate_with_brokenness(Xapian::DatabaseMaster & master,
Xapian::DatabaseReplica & replica,
const string & tempdir,
int expected_changesets,
int expected_fullcopies,
bool expected_changed)
{
string changesetpath = tempdir + "/changeset";
get_changeset(changesetpath, master, replica,
1, 0, 1);
// Try applying truncated changesets of various different lengths.
string brokenchangesetpath = tempdir + "/changeset_broken";
off_t filesize = get_file_size(changesetpath);
off_t len = 10;
off_t copylen;
while (len < filesize) {
copylen = truncated_copy(changesetpath, brokenchangesetpath, len);
TEST_EQUAL(copylen, len);
tout << "Trying replication with a changeset truncated to " << len <<
" bytes, from " << filesize << " bytes\n";
TEST_EXCEPTION(Xapian::NetworkError,
apply_changeset(brokenchangesetpath, replica,
expected_changesets, expected_fullcopies,
expected_changed));
if (len < 30 || len >= filesize - 10) {
// For lengths near the beginning and end, increment size by 1
++len;
} else {
// Don't bother incrementing by small amounts in the middle of
// the changeset.
len += 1000;
if (len >= filesize - 10) {
len = filesize - 10;
}
}
}
}
// Test changesets which are truncated (and therefore invalid).
DEFINE_TESTCASE(replicate3, replicas) {
UNSET_MAX_CHANGESETS_AFTERWARDS;
string tempdir = ".replicatmp";
mktmpdir(tempdir);
string masterpath = get_named_writable_database_path("master");
set_max_changesets(10);
{
Xapian::WritableDatabase orig(get_named_writable_database("master"));
Xapian::DatabaseMaster master(masterpath);
string replicapath = tempdir + "/replica";
Xapian::DatabaseReplica replica(replicapath);
// Add a document to the original database.
Xapian::Document doc1;
doc1.set_data(string("doc1"));
doc1.add_posting("doc", 1);
doc1.add_posting("one", 1);
orig.add_document(doc1);
orig.commit();
TEST_EQUAL(replicate(master, replica, tempdir, 0, 1, true), 1);
check_equal_dbs(masterpath, replicapath);
// Make a changeset.
orig.add_document(doc1);
orig.commit();
replicate_with_brokenness(master, replica, tempdir, 1, 0, true);
// Although it throws an error, the final replication in
// replicate_with_brokenness() updates the database, since it's just
// the end-of-replication message which is missing its body.
check_equal_dbs(masterpath, replicapath);
// Check that the earlier broken replications didn't cause any problems
// for the next replication.
orig.add_document(doc1);
orig.commit();
TEST_EQUAL(replicate(master, replica, tempdir, 1, 0, true), 2);
// We need this inner scope to we close the replica before we remove
// the temporary directory on Windows.
}
rmtmpdir(tempdir);
return true;
}
// Tests for max_changesets
DEFINE_TESTCASE(replicate4, replicas) {
UNSET_MAX_CHANGESETS_AFTERWARDS;
string tempdir = ".replicatmp";
mktmpdir(tempdir);
string masterpath = get_named_writable_database_path("master");
set_max_changesets(1);
{
Xapian::WritableDatabase orig(get_named_writable_database("master"));
Xapian::DatabaseMaster master(masterpath);
string replicapath = tempdir + "/replica";
Xapian::DatabaseReplica replica(replicapath);
// Add a document with no positions to the original database.
Xapian::Document doc1;
doc1.set_data(string("doc1"));
doc1.add_term("nopos");
orig.add_document(doc1);
orig.commit();
// Apply the replication - we don't have changesets stored, so this
// should just do a database copy, and return a count of 1.
int count = replicate(master, replica, tempdir, 0, 1, true);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
// Add a document with positional information to the original database.
doc1.add_posting("pos", 1);
orig.add_document(doc1);
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 1, 0, true);
TEST_EQUAL(count, 2);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
// Add a document with no positions to the original database.
Xapian::Document doc2;
doc2.set_data(string("doc2"));
doc2.add_term("nopos");
orig.add_document(doc2);
if (get_dbtype() != "chert") {
// FIXME: Needs to be pre-commit for new-glass
set_max_changesets(0);
}
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 1, 0, true);
TEST_EQUAL(count, 2);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
TEST(!file_exists(masterpath + "/changes1"));
// Turn off replication, make sure we dont write anything
if (get_dbtype() == "chert") {
set_max_changesets(0);
}
// Add a document with no positions to the original database.
Xapian::Document doc3;
doc3.set_data(string("doc3"));
doc3.add_term("nonopos");
orig.add_document(doc3);
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 0, 1, true);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
// Should have pulled a full copy
check_equal_dbs(masterpath, replicapath);
TEST(!file_exists(masterpath + "/changes3"));
// We need this inner scope to we close the replica before we remove
// the temporary directory on Windows.
}
rmtmpdir(tempdir);
return true;
}
// Tests for max_changesets
DEFINE_TESTCASE(replicate5, replicas) {
SKIP_TEST_FOR_BACKEND("chert");
UNSET_MAX_CHANGESETS_AFTERWARDS;
string tempdir = ".replicatmp";
mktmpdir(tempdir);
string masterpath = get_named_writable_database_path("master");
set_max_changesets(2);
{
Xapian::WritableDatabase orig(get_named_writable_database("master"));
Xapian::DatabaseMaster master(masterpath);
string replicapath = tempdir + "/replica";
Xapian::DatabaseReplica replica(replicapath);
// Add a document with no positions to the original database.
Xapian::Document doc1;
doc1.set_data(string("doc1"));
doc1.add_term("nopos");
orig.add_document(doc1);
orig.commit();
// Apply the replication - we don't have changesets stored, so this
// should just do a database copy, and return a count of 1.
int count = replicate(master, replica, tempdir, 0, 1, true);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
// Add a document with positional information to the original database.
doc1.add_posting("pos", 1);
orig.add_document(doc1);
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 1, 0, true);
TEST_EQUAL(count, 2);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
// Add a document with no positions to the original database.
Xapian::Document doc2;
doc2.set_data(string("doc2"));
doc2.add_term("nopos");
orig.add_document(doc2);
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 1, 0, true);
TEST_EQUAL(count, 2);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
// Add a document with no positions to the original database.
Xapian::Document doc3;
doc3.set_data(string("doc3"));
doc3.add_term("nonopos");
orig.add_document(doc3);
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 1, 0, true);
TEST_EQUAL(count, 2);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
// Ensure that only these changesets exists
TEST(!file_exists(masterpath + "/changes1"));
TEST(file_exists(masterpath + "/changes2"));
TEST(file_exists(masterpath + "/changes3"));
set_max_changesets(3);
masterpath = get_named_writable_database_path("master");
// Add a document with no positions to the original database.
Xapian::Document doc4;
doc4.set_data(string("doc4"));
doc4.add_term("nononopos");
orig.add_document(doc4);
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 1, 0, true);
TEST_EQUAL(count, 2);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
// Add a document with no positions to the original database.
Xapian::Document doc5;
doc5.set_data(string("doc5"));
doc5.add_term("nonononopos");
orig.add_document(doc5);
orig.commit();
// Replicate, and check that we have the positional information.
count = replicate(master, replica, tempdir, 1, 0, true);
TEST_EQUAL(count, 2);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
check_equal_dbs(masterpath, replicapath);
TEST(!file_exists(masterpath + "/changes2"));
TEST(file_exists(masterpath + "/changes3"));
TEST(file_exists(masterpath + "/changes4"));
TEST(file_exists(masterpath + "/changes5"));
// We need this inner scope to we close the replica before we remove
// the temporary directory on Windows.
}
rmtmpdir(tempdir);
return true;
}
/// Test --full-copy option.
DEFINE_TESTCASE(replicate6, replicas) {
UNSET_MAX_CHANGESETS_AFTERWARDS;
string tempdir = ".replicatmp";
mktmpdir(tempdir);
string masterpath = get_named_writable_database_path("master");
set_max_changesets(10);
{
Xapian::WritableDatabase orig(get_named_writable_database("master"));
Xapian::DatabaseMaster master(masterpath);
string replicapath = tempdir + "/replica";
Xapian::DatabaseReplica replica(replicapath);
// Add a document to the original database.
Xapian::Document doc1;
doc1.set_data(string("doc1"));
doc1.add_posting("doc", 1);
doc1.add_posting("one", 1);
orig.add_document(doc1);
orig.commit();
rm_rf(masterpath + "1");
cp_R(masterpath, masterpath + "1");
orig.add_document(doc1);
orig.commit();
// Apply the replication - we don't have changesets stored, so this
// should just do a database copy, and return a count of 1.
int count = replicate(master, replica, tempdir, 0, 1, true);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
Xapian::DatabaseMaster master1(masterpath + "1");
// Try to replicate an older version of the master.
count = replicate(master1, replica, tempdir, 0, 0, false);
TEST_EQUAL(count, 1);
// Force a full copy.
count = replicate(master1, replica, tempdir, 0, 1, true, true);
TEST_EQUAL(count, 1);
// Test we can still replicate.
orig.add_document(doc1);
orig.commit();
count = replicate(master, replica, tempdir, 2, 0, true);
TEST_EQUAL(count, 3);
check_equal_dbs(masterpath, replicapath);
// We need this inner scope to we close the replica before we remove
// the temporary directory on Windows.
}
rmtmpdir(tempdir);
return true;
}
/// Test healing a corrupt replica (new in 1.3.5).
DEFINE_TESTCASE(replicate7, replicas) {
UNSET_MAX_CHANGESETS_AFTERWARDS;
string tempdir = ".replicatmp";
mktmpdir(tempdir);
string masterpath = get_named_writable_database_path("master");
set_max_changesets(10);
Xapian::WritableDatabase orig(get_named_writable_database("master"));
Xapian::DatabaseMaster master(masterpath);
string replicapath = tempdir + "/replica";
{
Xapian::DatabaseReplica replica(replicapath);
// Add a document to the original database.
Xapian::Document doc1;
doc1.set_data(string("doc1"));
doc1.add_posting("doc", 1);
doc1.add_posting("one", 1);
orig.add_document(doc1);
orig.commit();
orig.add_document(doc1);
orig.commit();
// Apply the replication - we don't have changesets stored, so this
// should just do a database copy, and return a count of 1.
int count = replicate(master, replica, tempdir, 0, 1, true);
TEST_EQUAL(count, 1);
{
Xapian::Database dbcopy(replicapath);
TEST_EQUAL(orig.get_uuid(), dbcopy.get_uuid());
}
}
{
// Corrupt replica by truncating all the files to size 0.
string d = replicapath;
d += "/replica_1";
DIR * dir = opendir(d.c_str());
TEST(dir != NULL);
while (true) {
errno = 0;
struct dirent * entry = readdir(dir);
if (!entry) {
if (errno == 0)
break;
FAIL_TEST("readdir failed: " << strerror(errno));
}
// Skip '.' and '..'.
if (entry->d_name[0] == '.') continue;
string file = d;
file += '/';
file += entry->d_name;
int fd = open(file.c_str(), O_WRONLY|O_TRUNC, 0666);
TEST(fd != -1);
TEST(close(fd) == 0);
}
closedir(dir);
}
{
Xapian::DatabaseReplica replica(replicapath);
// Replication should succeed and perform a full copy.
int count = replicate(master, replica, tempdir, 0, 1, true);
TEST_EQUAL(count, 1);
check_equal_dbs(masterpath, replicapath);
// We need this inner scope to we close the replica before we remove
// the temporary directory on Windows.
}
rmtmpdir(tempdir);
return true;
}
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