orphaned thd with lp:1208493 regression test

Bug #1304348 reported by Teemu Ollakka
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
MySQL patches by Codership
Status tracked in 5.6
5.5
Incomplete
Undecided
Unassigned
5.6
New
Undecided
Unassigned
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC
Status tracked in 5.6
5.5
Incomplete
Undecided
Unassigned
5.6
Incomplete
Undecided
Unassigned

Bug Description

Regression test for lp:1208493 got stuck in:

starting node0, node1...
140408 04:29:00.315 Job 'start_cmd' on 'local1' complete in 7 seconds,
140408 04:29:07.569 Job 'start_cmd' on 'local2' complete in 7 seconds,
wsrep_provider = /tmp/galera/local1/galera/lib/libgalera_smm.so
wsrep_cluster_address = gcomm://?gmcast.listen_addr=tcp://0.0.0.0:10011
starting variable setters...
dropping and joining node...
Dropper Done
Waiting load to end (28700)

Running 'netstat -nat' revealed that there was ongoing connection to mysqld instance:

  tcp 0 0 10.0.2.15:3311 10.0.2.15:56480 ESTABLISHED

Also mysql processlist listed the connection:

  | 251 | unauthenticated user | connecting host | NULL | Connect | NULL | login | NULL |

Corresponding thd was fround from global_thread_list:

  (gdb) p ((THD*)0x2fffc60)->thread_id
  $19 = 251
  (gdb) p ((THD*)0x2fffc60)->proc_info
  $20 = 0xef2a72 "login"

However, gdb thread listing didn't show any thread that would have been handling the connection and the main thread was already polling listener socket.

So far seen only with 5.6.

description: updated
Revision history for this message
Krunal Bauskar (krunal-bauskar) wrote :

Can you re-try it with latest 5.6 and see if the issue still persist.

Revision history for this message
Shahriyar Rzayev (rzayev-sehriyar) wrote :

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXC-1663

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.