Error from process::wait is not checked in wsrep_joiner_thread/ wsrep_donor_thread

Bug #1402166 reported by Raghavendra D Prabhu on 2014-12-13
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC
Status tracked in 5.6
5.5
Fix Committed
Undecided
Raghavendra D Prabhu
5.6
Fix Released
Undecided
Raghavendra D Prabhu

Bug Description

Can lead to situations like:

2014-12-13 15:22:50 64517 [ERROR] WSREP: Process was aborted.
2014-12-13 15:22:50 64517 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address '127.0.0.1:5001' --auth '' --datadir '/pxc56/datadir2/' --defaults-file '/pxc56/etc/my.cnf.local.2' --parent '64517' '' : 10 (No child processes)
2014-12-13 15:22:50 64517 [Note] WSREP: SST complete, seqno: 5
2014-12-13 15:22:50 7fa82cc2a740 InnoDB: Warning: Using innodb_locks_unsafe_for_binlog is DEPRECATED. This option may be removed in future releases. Please use READ COMMITTED transaction isolation level instead, see http://dev.mysql.com/doc/refman/5.6/en/set-transaction.html.
2014-12-13 15:22:50 64517 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-12-13 15:22:50 7fa82cc2a740 InnoDB: !!!!!!!! UNIV_DEBUG switched on !!!!!!!!!
2014-12-13 15:22:50 7fa82cc2a740 InnoDB: !!!!!!!! UNIV_SYNC_DEBUG switched on !!!!!!!!!
2014-12-13 15:22:50 64517 [Note] InnoDB: The InnoDB memory heap is disabled
2014-12-13 15:22:50 64517 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-12-13 15:22:50 64517 [Note] InnoDB: Memory barrier is not used
2014-12-13 15:22:50 64517 [Note] InnoDB: Compressed tables use zlib 1.2.8
2014-12-13 15:22:50 64517 [Note] InnoDB: Using Linux native AIO
2014-12-13 15:22:50 64517 [Note] InnoDB: Not using CPU crc32 instructions
2014-12-13 15:22:50 64517 [Note] InnoDB: Initializing buffer pool, size = 500.0M
2014-12-13 15:22:50 64517 [Note] InnoDB: Completed initialization of buffer pool
2014-12-13 15:22:50 64517 [Note] InnoDB: Highest supported file format is Barracuda.
2014-12-13 15:22:52 64517 [Note] InnoDB: 128 rollback segment(s) are active.
2014-12-13 15:22:52 64517 [Note] InnoDB: Waiting for purge to start
2014-12-13 15:22:52 64517 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.21- started; log sequence number 1436934259
2014-12-13 15:22:52 64517 [Note] WSREP: Initial TC log open: dummy
2014-12-13 15:22:52 64517 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: cdd36640-82ad-11e4-90f7-002710b5b518.
2014-12-13 15:22:52 64517 [Note] RSA private key file not found: /pxc56/datadir2//private_key.pem. Some authentication plugins will not work.
2014-12-13 15:22:52 64517 [Note] RSA public key file not found: /pxc56/datadir2//public_key.pem. Some authentication plugins will not work.
2014-12-13 15:22:52 64517 [Note] Server hostname (bind-address): '*'; port: 5000
2014-12-13 15:22:52 64517 [Note] IPv6 is not available.
2014-12-13 15:22:52 64517 [Note] - '0.0.0.0' resolves to '0.0.0.0';
2014-12-13 15:22:52 64517 [Note] Server socket created on IP: '0.0.0.0'.
2014-12-13 15:22:52 64517 [Note] Event Scheduler: Loaded 0 events
2014-12-13 15:22:52 64517 [Note] WSREP: Signalling provider to continue.
2014-12-13 15:22:52 64517 [Note] WSREP: inited wsrep sidno 1
2014-12-13 15:22:52 64517 [Note] WSREP: SST received: 9b918768-77ad-11e4-ba48-a6f7c560ceea:5
2014-12-13 15:22:52 64517 [Note] WSREP: 1.0 (Arch2): State transfer from 0.0 (Arch1) complete.
2014-12-13 15:22:52 64517 [Note] WSREP: Shifting JOINER -> JOINED (TO: 5)
2014-12-13 15:22:52 64517 [Note] /pxc56d/bin/mysqld: ready for connections.
Version: '5.6.21-70.1-25.8-debug' socket: '/pxc56/datadir2/pxc.sock' port: 5000 Percona XtraDB Cluster (GPL) -25.8, Revision 944, wsrep_25.8.r944
2014-12-13 15:22:52 64517 [Note] WSREP: Member 1.0 (Arch2) synced with group.
2014-12-13 15:22:52 64517 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 5)
2014-12-13 15:22:52 64517 [Note] WSREP: Synchronized with group, ready for connections
2014-12-13 15:22:52 64517 [Note] WSREP: wsrep_notify_cmd is not defined, skipping notification.

Related branches

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXC-1781

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