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2b8a41a6c4
SHOW PROCESSLIST, SHOW BINLOGS Fixing post push test failure (MTR does not like giving 127.0.0.1 for localhost incase of --embedded run, it thinks it is an external ip address)
64 lines
2.6 KiB
Plaintext
64 lines
2.6 KiB
Plaintext
###############################################################################
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--echo Bug#17283409 4-WAY DEADLOCK: ZOMBIES, PURGING BINLOGS, SHOW PROCESSLIST,
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--echo SHOW BINLOGS
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# After the fix for bug 17283409, We allow new connections while processing
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# 'SHOW PROCESSLIST' command. This test script is to prove that even though we
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# allow new connections to come in, 'SHOW PROCESSLIST' will not consider them,
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# hence there is no worry of 'SHOW PROCESSLIST' going into a infinite loop if
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# new connections are coming in continously.
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###############################################################################
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--source include/have_debug_sync.inc
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--source include/count_sessions.inc
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--enable_connect_log
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connect(connection1,localhost,root,,test,$MASTER_MYPORT,);
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--connection default
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SET DEBUG_SYNC='before_one_element_read_from_threads_iterator SIGNAL parked1 WAIT_FOR go';
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--send SHOW PROCESSLIST
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--connection connection1
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echo "Wait_for parked1";
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SET DEBUG_SYNC='now WAIT_FOR parked1';
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connect(connection2,localhost,root,,test,$MASTER_MYPORT,);
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connect(connection3,localhost,root,,test,$MASTER_MYPORT,);
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SET DEBUG_SYNC='now SIGNAL go';
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--connection default
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# We are yet to read the first element from the iterator when connection 2 and
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# connection 3 joined the system. So this will show all 4 connections
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# ( default + connection 1,2,3).
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--replace_column 1 <Id> 3 <Host> 5 <Command> 6 <Time> 7 <State> 8 <Info>
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--reap
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# Test 2: To prove that connections which joined after reading the
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# first element from the thread iterator will not be entertained
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SET DEBUG_SYNC='after_one_element_read_from_threads_iterator SIGNAL parked1 WAIT_FOR go';
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--send SHOW PROCESSLIST
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--connection connection1
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echo "Wait_for parked1";
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SET DEBUG_SYNC='now WAIT_FOR parked1';
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connect(connection4,localhost,root,,test,$MASTER_MYPORT,);
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connect(connection5,localhost,root,,test,$MASTER_MYPORT,);
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SET DEBUG_SYNC='now SIGNAL go';
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--connection default
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# This will show 4 connections only ( default + connection 1,2,3 ). Connections
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# (connection4, connection 5) which entered after reading the first element
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# from the iterator will not be processed by show processlist.
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--replace_column 1 <Id> 3 <Host> 5 <Command> 6 <Time> 7 <State> 8 <Info>
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--reap
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#Now try the command once again.
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# This will show 6 connections ( default + connection 1,2,3,4,5 )
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--replace_column 1 <Id> 3 <Host> 5 <Command> 6 <Time> 7 <State> 8 <Info>
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SHOW PROCESSLIST;
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--echo "Cleanup"
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# Reset DEBUG_SYNC
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SET DEBUG_SYNC='RESET';
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--disconnect connection1
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--disconnect connection2
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--disconnect connection3
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--disconnect connection4
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--disconnect connection5
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--disable_connect_log
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--source include/wait_until_count_sessions.inc
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