Percona XtraDB Cluster moved to 5.6.15-25.4

Fix for PA and Memory/MyISAM tables.

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Percona XtraDB Cluster moved to
Hrvoje Matijakovic
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1 Raghavendra D Prabhu
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8 Fix Released

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Bugs fixed

Parallel Applying was not functioning which was evident from the wsrep_cert_deps_distance being 1.0 at all times. Bug fixed #1277703.

Binlog events were created for the statements for non-InnoDB tables, but they were never cleaned from transaction cache, which could lead to node crash. Bug fixed #1277986.

Percona XtraDB Cluster didn’t validate the parameters of wsrep_provider_options when starting it up. Bug fixed #1260193.

clustercheck script would mark node as down on Debian based systems if it was run with default values because it was looking for the defaults-extra-file in the wrong directory. Bug fixed #1276076.

Deadlock would happen when NULL unique key was inserted. Workaround has been implemented to support NULL keys, by using the md5 sum of full row as key value. Bug fixed #1276424.

Variables innodb-log-group-home-dir and innodb-data-home-dir are now handled by default (ie., there is no need to set them up in sst_special_dirs). Bug fixed #1276904.

Builds now use system Zlib instead of bundled one. Bug fixed #1277928.

If transaction size exceeds the wsrep_max_ws_size limit, there will appear a warning message in the error log and replication is skipped. However, the transaction was committed in the master node, and cluster would be in inconsistent state. Bug fixed #1280557.

wsrep_load_data_splitting defaults to OFF now, using it turned ON with autocommit set to 0 is not recommended.

Other bugs fixed: #1279844.

0 blueprints and 8 bugs targeted

Bug report Importance Assignee Status
1277703 #1277703 5.6 cluster reports wsrep_cert_deps_distance=1.0 in all cases | Parallel Apply not working 3 High   10 Fix Released
1277986 #1277986 MEMORY/MyISAM tables + binlogging OFF | Empty GRA_*_*.log file(s) with Release build | Assertion failure binlog_cache_data::finalize(THD*, Log_event*): Assertion `!flags.finalized' failed in UNIV_DEBUG build. 3 High   10 Fix Released
1260193 #1260193 XtraDB cluster doesn't check the parameters of wsrep_provider_options 1 Undecided   10 Fix Released
1276076 #1276076 pxc xinetd issues with debian my.cnf location 1 Undecided   10 Fix Released
1276424 #1276424 Deadlock with insertion of NULL unique key 1 Undecided   10 Fix Released
1276904 #1276904 Make sst-special-dirs a default 1 Undecided   10 Fix Released
1277928 #1277928 Use WITH_ZLIB=system in builds 1 Undecided   10 Fix Released
1279844 #1279844 Workaround for ubuntu-lucid-32bit 1 Undecided Raghavendra D Prabhu  10 Fix Released
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