Percona XtraDB Cluster 5.6.15-25.5

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Percona XtraDB Cluster
Hrvoje Matijakovic
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4 Hrvoje Matijakovic, 1 Raghavendra D Prabhu
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30 Fix Released

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New Features
wsrep patch did not allow server to start with Query Cache enabled. This restriction and check have been removed now and query cache can be fully enabled from config file.
New SST options have been implemented: inno-backup-opts, inno-apply-opts, inno-move-opts which pass options to backup, apply and move stages of innobackupex.
The joiner would wait and not fall back to choosing other potential donor nodes (not listed in wsrep_sst_donor) by their state. This happened even when comma was added at the end. This fixes it for that particular case. Bug fixed #1285380.
Initial configurable timeout, of 100 seconds, to receive a first packet via SST has been implemented, so that if donor dies somewhere in between, joiner doesn’t hang. Timeout can be configured with the sst-initial-timeout variable.
Bugs fixed
Replication of partition tables without binlogging enabled failed, partition truncation didn’t work because of lack of TO isolation there. Bug fixed #1219605.
Using LOAD DATA INFILE in with autocommit set to 0 and wsrep_load_data_splitting set to ON could lead to incomplete loading of records while chunking. Bug fixed #1281810.
Garbd could crash on CentOS if variable gmcast.listen_addr wasn’t set. Bug fixed #1283100.
Node couldn’t be started with wsrep_provider_options option debug set to 1. Bug fixed #1285208.
Boostrapping a node in a NON-PRIMARY state would lead to crash. Bug fixed #1286450.
New versions of xtrabackup SST scripts were ignoring --socket parameter passed by mysqld. Bug fixed #1289483.
Regression in Galera required explicitly setting socket.ssl to Yes even if you set up variables socket.ssl_key and socket.ssl_cert. Bug fixed #1290006.
Fixed the clang build issues that were happening during the Galera build. Bug fixed #1290462.
Better diagnostic error message has been implemented when wsrep_max_ws_size limit has been succeeded. Bug fixed #1280557.
Fixed incorrect warnings and implemented better handling of repeated usage with same value for wsrep_desync. Bug fixed #1281696.
Fixed the issue with wsrep_slave_threads wherein if the number of slave threads was changed before closing threads from an earlier change, it could increase the total number of threads beyond value specified in wsrep_slave_threads. Bug fixed #1290612
A regression in mutex handling caused dynamic update of wsrep_log_conflicts to hang the server. Bug fixed #1293624.
Presence of /tmp/test directory and an empty test database caused Percona XtraBackup to fail, causing SST to fail. This has been fixed in Percona XtraDB Cluster’s xtrabackup SST script, by using unique temporary directories with Percona XtraBackup. Bug fixed #1294760.
After installing the auth_socket plugin any local user might get root access to the server. If you’re using this plugin upgrade is advised. This is a regression, introduced in Percona XtraDB Cluster 5.6.14-25.1. Bug fixed #1289599
Other bug fixes: #1289776, #1279343, #1259649, #1292533, #1272982, #1287098, and #1284670.

0 blueprints and 30 bugs targeted

Bug report Importance Assignee Status
1227635 #1227635 InnoDB: Failing assertion: !thr->is_active with debug build 3 High   10 Fix Released
1272982 #1272982 Failures in conf17 test with xbstream 3 High   10 Fix Released
1292534 #1292534 Doc: Installation steps should describe how to overcome package conflicts with common distros 3 High Hrvoje Matijakovic  10 Fix Released
1251765 #1251765 Donor asserts when SST script fails due to joiner misconfiguration 4 Medium   10 Fix Released
1201499 #1201499 yum install Percona-Server-server installs Percona XtraDB-Cluster 1 Undecided Raghavendra D Prabhu  10 Fix Released
1219605 #1219605 "alter table t truncate partition p2;" replicate failed 1 Undecided   10 Fix Released
1259649 #1259649 Document the key/value pairs of wsrep_provider_options 1 Undecided Hrvoje Matijakovic  10 Fix Released
1264809 #1264809 regression test for lp:1019473 causes server abort 1 Undecided   10 Fix Released
1279220 #1279220 Remove query cache restrictions 1 Undecided   10 Fix Released
1279343 #1279343 [DOC] wsrep_slave_threads is one-way dynamic 1 Undecided   10 Fix Released
1280557 #1280557 transaction does not rollback after max write set size was exceeded 1 Undecided   10 Fix Released
1281682 #1281682 Add a sst option to pass options to innobackupex 1 Undecided   10 Fix Released
1281696 #1281696 wsrep_desync warnings 1 Undecided   10 Fix Released
1281810 #1281810 Loss of records with LOAD DATA INFILE in 5.6 with autocommit=0 + wsrep-load-data-splitting=ON | Crashes with UNIV_DEBUG 1 Undecided   10 Fix Released
1283100 #1283100 garbd crashes on CentOS 6 1 Undecided   10 Fix Released
1284670 #1284670 deadlock on server shutdown 1 Undecided   10 Fix Released
1285208 #1285208 debug=1 is broken in galera2/3 1 Undecided   10 Fix Released
1285380 #1285380 Donor in desynced state makes the joiner wait indefinitely 1 Undecided   10 Fix Released
1286450 #1286450 Boostrapping a Node in NON-PRIMARY Crashes 1 Undecided   10 Fix Released
1289483 #1289483 New versions of xtrabackup SST scripts ignore --socket parameter passed by mysqld 1 Undecided   10 Fix Released
1289776 #1289776 Check for MAGIC_FILE towards the end of PXB SST 1 Undecided   10 Fix Released
1290006 #1290006 SSL disabled without socket.ssl in Galera 1 Undecided   10 Fix Released
1290462 #1290462 Build issues with clang 1 Undecided   10 Fix Released
1290612 #1290612 Issue with wsrep_slave_threads 1 Undecided   10 Fix Released
1291024 #1291024 Restart node bootstrapped in PXC 1 Undecided   10 Fix Released
1292533 #1292533 Doc: Installation page should describe any additional dependencies needed for common distros 1 Undecided Hrvoje Matijakovic  10 Fix Released
1292535 #1292535 Doc: FAQ should explain health checking better 1 Undecided Hrvoje Matijakovic  10 Fix Released
1292991 #1292991 Add initial-timeout to SST 1 Undecided   10 Fix Released
1293624 #1293624 Enabling wsrep_log_conflicts dynamically causes node to hang 1 Undecided   10 Fix Released
1294760 #1294760 xtrabackup SST fails if /tmp/test directory exists 1 Undecided   10 Fix Released
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