202 lines
7.3 KiB
Python
202 lines
7.3 KiB
Python
"""TestCases for distributed transactions.
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"""
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import os
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import time
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import unittest
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try:
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# For Pythons w/distutils pybsddb
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from bsddb3 import db
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except ImportError:
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# For Python 2.3
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from bsddb import db
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from test_all import get_new_environment_path, get_new_database_path
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try:
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from bsddb3 import test_support
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except ImportError:
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from test import test_support
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from test_all import verbose
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#----------------------------------------------------------------------
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class DBReplicationManager(unittest.TestCase):
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import sys
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if sys.version_info[:3] < (2, 4, 0):
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def assertTrue(self, expr, msg=None):
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self.failUnless(expr,msg=msg)
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def setUp(self) :
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self.homeDirMaster = get_new_environment_path()
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self.homeDirClient = get_new_environment_path()
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self.dbenvMaster = db.DBEnv()
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self.dbenvClient = db.DBEnv()
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# Must use "DB_THREAD" because the Replication Manager will
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# be executed in other threads but will use the same environment.
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# http://forums.oracle.com/forums/thread.jspa?threadID=645788&tstart=0
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self.dbenvMaster.open(self.homeDirMaster, db.DB_CREATE | db.DB_INIT_TXN
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| db.DB_INIT_LOG | db.DB_INIT_MPOOL | db.DB_INIT_LOCK |
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db.DB_INIT_REP | db.DB_RECOVER | db.DB_THREAD, 0666)
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self.dbenvClient.open(self.homeDirClient, db.DB_CREATE | db.DB_INIT_TXN
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| db.DB_INIT_LOG | db.DB_INIT_MPOOL | db.DB_INIT_LOCK |
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db.DB_INIT_REP | db.DB_RECOVER | db.DB_THREAD, 0666)
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self.confirmed_master=self.client_startupdone=False
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def confirmed_master(a,b,c) :
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if b==db.DB_EVENT_REP_MASTER :
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self.confirmed_master=True
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def client_startupdone(a,b,c) :
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if b==db.DB_EVENT_REP_STARTUPDONE :
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self.client_startupdone=True
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self.dbenvMaster.set_event_notify(confirmed_master)
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self.dbenvClient.set_event_notify(client_startupdone)
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master_port = test_support.find_unused_port()
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self.dbenvMaster.repmgr_set_local_site("127.0.0.1", master_port)
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client_port = test_support.find_unused_port()
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self.dbenvClient.repmgr_set_local_site("127.0.0.1", client_port)
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self.dbenvMaster.repmgr_add_remote_site("127.0.0.1", client_port)
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self.dbenvClient.repmgr_add_remote_site("127.0.0.1", master_port)
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self.dbenvMaster.rep_set_nsites(2)
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self.dbenvClient.rep_set_nsites(2)
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self.dbenvMaster.rep_set_priority(10)
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self.dbenvClient.rep_set_priority(0)
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self.dbenvMaster.repmgr_set_ack_policy(db.DB_REPMGR_ACKS_ALL)
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self.dbenvClient.repmgr_set_ack_policy(db.DB_REPMGR_ACKS_ALL)
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self.dbenvMaster.repmgr_start(1, db.DB_REP_MASTER);
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self.dbenvClient.repmgr_start(1, db.DB_REP_CLIENT);
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self.assertEquals(self.dbenvMaster.rep_get_nsites(),2)
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self.assertEquals(self.dbenvClient.rep_get_nsites(),2)
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self.assertEquals(self.dbenvMaster.rep_get_priority(),10)
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self.assertEquals(self.dbenvClient.rep_get_priority(),0)
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self.assertEquals(self.dbenvMaster.repmgr_get_ack_policy(),
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db.DB_REPMGR_ACKS_ALL)
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self.assertEquals(self.dbenvClient.repmgr_get_ack_policy(),
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db.DB_REPMGR_ACKS_ALL)
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#self.dbenvMaster.set_verbose(db.DB_VERB_REPLICATION, True)
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#self.dbenvMaster.set_verbose(db.DB_VERB_FILEOPS_ALL, True)
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#self.dbenvClient.set_verbose(db.DB_VERB_REPLICATION, True)
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#self.dbenvClient.set_verbose(db.DB_VERB_FILEOPS_ALL, True)
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self.dbMaster = self.dbClient = None
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# The timeout is necessary in BDB 4.5, since DB_EVENT_REP_STARTUPDONE
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# is not generated if the master has no new transactions.
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# This is solved in BDB 4.6 (#15542).
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timeout = time.time()+10
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while (time.time()<timeout) and not (self.confirmed_master and self.client_startupdone) :
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time.sleep(0.02)
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if db.version() >= (4,6) :
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self.assertTrue(time.time()<timeout)
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else :
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self.assertTrue(time.time()>=timeout)
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d = self.dbenvMaster.repmgr_site_list()
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self.assertEquals(len(d), 1)
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self.assertEquals(d[0][0], "127.0.0.1")
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self.assertEquals(d[0][1], client_port)
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self.assertTrue((d[0][2]==db.DB_REPMGR_CONNECTED) or \
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(d[0][2]==db.DB_REPMGR_DISCONNECTED))
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d = self.dbenvClient.repmgr_site_list()
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self.assertEquals(len(d), 1)
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self.assertEquals(d[0][0], "127.0.0.1")
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self.assertEquals(d[0][1], master_port)
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self.assertTrue((d[0][2]==db.DB_REPMGR_CONNECTED) or \
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(d[0][2]==db.DB_REPMGR_DISCONNECTED))
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if db.version() >= (4,6) :
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d = self.dbenvMaster.repmgr_stat(flags=db.DB_STAT_CLEAR);
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self.assertTrue("msgs_queued" in d)
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def tearDown(self):
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if self.dbClient :
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self.dbClient.close()
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if self.dbMaster :
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self.dbMaster.close()
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self.dbenvClient.close()
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self.dbenvMaster.close()
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test_support.rmtree(self.homeDirClient)
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test_support.rmtree(self.homeDirMaster)
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def test01_basic_replication(self) :
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self.dbMaster=db.DB(self.dbenvMaster)
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txn=self.dbenvMaster.txn_begin()
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self.dbMaster.open("test", db.DB_HASH, db.DB_CREATE, 0666, txn=txn)
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txn.commit()
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import time,os.path
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timeout=time.time()+10
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while (time.time()<timeout) and \
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not (os.path.exists(os.path.join(self.homeDirClient,"test"))) :
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time.sleep(0.01)
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self.dbClient=db.DB(self.dbenvClient)
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while True :
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txn=self.dbenvClient.txn_begin()
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try :
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self.dbClient.open("test", db.DB_HASH, flags=db.DB_RDONLY,
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mode=0666, txn=txn)
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except db.DBRepHandleDeadError :
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txn.abort()
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self.dbClient.close()
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self.dbClient=db.DB(self.dbenvClient)
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continue
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txn.commit()
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break
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txn=self.dbenvMaster.txn_begin()
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self.dbMaster.put("ABC", "123", txn=txn)
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txn.commit()
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import time
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timeout=time.time()+1
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v=None
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while (time.time()<timeout) and (v==None) :
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txn=self.dbenvClient.txn_begin()
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v=self.dbClient.get("ABC", txn=txn)
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txn.commit()
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self.assertEquals("123", v)
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txn=self.dbenvMaster.txn_begin()
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self.dbMaster.delete("ABC", txn=txn)
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txn.commit()
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timeout=time.time()+1
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while (time.time()<timeout) and (v!=None) :
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txn=self.dbenvClient.txn_begin()
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v=self.dbClient.get("ABC", txn=txn)
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txn.commit()
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self.assertEquals(None, v)
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#----------------------------------------------------------------------
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def test_suite():
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suite = unittest.TestSuite()
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if db.version() >= (4,5) :
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dbenv = db.DBEnv()
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try :
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dbenv.repmgr_get_ack_policy()
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ReplicationManager_available=True
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except :
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ReplicationManager_available=False
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dbenv.close()
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del dbenv
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if ReplicationManager_available :
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suite.addTest(unittest.makeSuite(DBReplicationManager))
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return suite
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if __name__ == '__main__':
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unittest.main(defaultTest='test_suite')
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