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# Tests of Python-specific parts of the xapian bindings.
#
# Copyright (C) 2007,2008 Lemur Consulting Ltd
# Copyright (C) 2008,2009 Olly Betts
#
# 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
import os
import shutil
import subprocess
import sys
import time
import xapian
from testsuite import *
def set_master(masterpath, srcpath):
# Take a copy of the source, to make modifications to.
if os.path.exists(masterpath + "_"):
shutil.rmtree(masterpath + "_")
shutil.copytree(srcpath, masterpath + "_")
# Set a new uuid on the copy.
xapian.WritableDatabase(masterpath + "__", xapian.DB_CREATE_OR_OVERWRITE)
os.unlink(os.path.join(masterpath + "_", "iamchert"))
os.rename(os.path.join(masterpath + "__", "iamchert"),
os.path.join(masterpath + "_", "iamchert"))
shutil.rmtree(masterpath + "__")
# Replace the current master with the copy of the source.
# Note that this isn't an atomic replace, so we'll sometimes get errors
# such as "NetworkError: Unable to fully synchronise: Can't open database:
# Cannot open tables at consistent revisions" - the replication protocol
# should recover happily from this, though.
if os.path.exists(masterpath):
os.rename(masterpath, masterpath + "__")
os.rename(masterpath + '_', masterpath)
if os.path.exists(masterpath + "__"):
shutil.rmtree(masterpath + "__")
def test_replication_concurrency():
"""Test concurrent replication and modification
"""
builddir = os.environ['abs_builddir']
dbsdir = os.path.join(builddir, 'dbs_replication')
if not os.path.isdir(dbsdir):
os.makedirs(dbsdir)
masterpath = os.path.join(dbsdir, 'master')
firstpath = os.path.join(dbsdir, 'first')
secondpath = os.path.join(dbsdir, 'second')
slavepath = os.path.join(dbsdir, 'slave')
if os.path.isdir(masterpath):
shutil.rmtree(masterpath)
if os.path.isdir(slavepath):
shutil.rmtree(slavepath)
port = 7876
expect_exception(xapian.DatabaseOpeningError,
"Couldn't stat '" + dbsdir + "/slave' (No such file or directory)",
xapian.Database, slavepath)
clientp = None
serverp = subprocess.Popen(('../../xapian-core/bin/xapian-replicate-server',
dbsdir,
'--port=7876',
),
)
doccount1 = 10000
doccount2 = 1000
starttime = time.time()
if not os.path.isdir(firstpath):
firstdb = xapian.WritableDatabase(firstpath, xapian.DB_CREATE_OR_OVERWRITE)
# Make an initial, large database
print
print "Building initial database ..."
for num in xrange(1, doccount1):
doc=xapian.Document()
val = 'val%d' % num
doc.add_value(1, val)
firstdb.add_document(doc)
if num % 100000 == 0:
print "%d documents..." % num
firstdb.set_metadata('dbname', '1')
firstdb.commit()
print "built"
# The secondary database gets modified during the test, so needs to be
# cleared now.
shutil.rmtree(secondpath)
if not os.path.isdir(secondpath):
seconddb = xapian.WritableDatabase(secondpath, xapian.DB_CREATE_OR_OVERWRITE)
# Make second, small database
print
print "Building secondary database ..."
for num in xrange(1, doccount2):
doc=xapian.Document()
val = 'val%d' % num
doc.add_value(1, val)
seconddb.add_document(doc)
if num % 100000 == 0:
print "%d documents..." % num
seconddb.set_metadata('dbname', '2')
seconddb.commit()
print "built"
if time.time() - starttime < 1:
time.sleep(1) # Give server time to start
try:
set_master(masterpath, firstpath)
clientp = subprocess.Popen(('../../xapian-core/bin/xapian-replicate',
'--host=127.0.0.1',
'--master=master',
os.path.join(dbsdir, 'slave'),
'--interval=0',
'--port=7876',
'-r 0',
),
)
time.sleep(1) # Give client time to start
expect(xapian.Database(slavepath).get_metadata('dbname'), '1')
for count in xrange(10):
# Test that swapping between databases doesn't confuse replication.
for count2 in xrange(2):
set_master(masterpath, secondpath)
time.sleep(0.1)
set_master(masterpath, firstpath)
time.sleep(0.1)
# Test making changes to the database.
set_master(masterpath, secondpath)
masterdb = xapian.WritableDatabase(masterpath, xapian.DB_OPEN)
print "making 100 changes"
for num in xrange(100):
masterdb.set_metadata('num%d' % num, str(num + count))
masterdb.commit()
print "changes done"
masterdb.close()
# Allow time for the replication client to catch up with the
# changes.
time.sleep(2)
expect(xapian.Database(slavepath).get_metadata('dbname'), '2')
expect(xapian.Database(slavepath).get_metadata('num99'), str(99 + count))
finally:
if clientp is not None:
os.kill(clientp.pid, 9)
clientp.wait()
os.kill(serverp.pid, 9)
serverp.wait()
#shutil.rmtree(dbsdir)
# Run all tests (ie, callables with names starting "test_").
if not runtests(globals(), sys.argv[1:]):
sys.exit(1)
# vim:syntax=python:set expandtab:
|
