List:Commits« Previous MessageNext Message »
From:Dao-Gang.Qu Date:December 9 2010 8:33am
Subject:bzr commit into mysql-trunk-bugfixing branch (Dao-Gang.Qu:3427) Bug#57918
View as plain text  
#At file:///home/daogang/bzrwork/bug57918/mysql-trunk-bugfixing/ based on revid:marc.alff@stripped

 3427 Dao-Gang.Qu@stripped	2010-12-09
      Bug #57918  	rpl_get_master_version_and_clock times out sporadically
      
      The reason is that sometimes the slave is unblocked before the
      master server is really shutdown.
      
      Symptom 1, found warnings/errors in server log file.
      In the situation, the 'get_master_version_and_clock' func
      will return normally inster of network error expected. Then
      the 'handle_slave_io' func will go to invoke 'get_master_uuid'
      func, which will return normally if the master server is
      still alive. Then the process will go on untill invoke
      'request_dump' func, which will print the "Error on
      COM_BINLOG_DUMP: 2003  Can't connect to MySQL server on
      '127.0.0.1' (111), will retry in 1 secs" error as symptom
      reported if the server is really shutdown in the moment.
      while the test is waiting for the network error.
      
      Symptom 2, timeout after 900 seconds
      In the situation, the 'get_master_version_and_clock',
      get_master_uuid, and 'request_dump' funcs will retrurn
      normally if the master server is alive during the period,
      then the 'handle_slave_io' func will enter
      'while (!io_slave_killed(thd,mi))' block and try to connect
      master while the master sever is really shutdown and the
      test will not have a chance to start master, because during
      the period the test will stall there to wait for a network
      error until it exits with a timeout error.
      
      To fix these problems to source wait_until_disconnected.inc
      after shutdown master server for guaranteeing the master
      server is really shutdown before the slave is unblocked.
     @ mysql-test/extra/rpl_tests/rpl_get_master_version_and_clock.test
        Update test to guarantee the master server is really
        shutdown before the slave is unblocked.

    modified:
      mysql-test/extra/rpl_tests/rpl_get_master_version_and_clock.test
=== modified file 'mysql-test/extra/rpl_tests/rpl_get_master_version_and_clock.test'
--- a/mysql-test/extra/rpl_tests/rpl_get_master_version_and_clock.test	2010-11-26 13:39:15 +0000
+++ b/mysql-test/extra/rpl_tests/rpl_get_master_version_and_clock.test	2010-12-09 08:33:39 +0000
@@ -58,6 +58,7 @@ connection master;
 # Send shutdown to the connected server and give
 # it 10 seconds to die before zapping it
 shutdown_server 10;
+--source include/wait_until_disconnected.inc
 
 connection slave;
 --echo slave is unblocked


Attachment: [text/bzr-bundle] bzr/dao-gang.qu@sun.com-20101209083339-mlijsbrlnohb0xg1.bundle
Thread
bzr commit into mysql-trunk-bugfixing branch (Dao-Gang.Qu:3427) Bug#57918Dao-Gang.Qu9 Dec
  • Re: bzr commit into mysql-trunk-bugfixing branch (Dao-Gang.Qu:3427)Bug#57918Luís Soares9 Dec
    • Re: bzr commit into mysql-trunk-bugfixing branch (Dao-Gang.Qu:3427)Bug#57918Daogang Qu10 Dec