Regression in Percona-XtraDB-Cluster-shared-56 after 5.6.21-25.8.940 on CentOS 7

[Jorma Tuomainen]

Trying to upgrade from 5.6.21-25.8.940 to either Percona-XtraDB-Cluster-shared-56-5.6.22-25.8.978.el7.x86_64 or to Percona-XtraDB-Cluster-shared-56-5.6.24-25.11.1.el7.x86_64 causes Postfix to give out following errors:

Jul 28 10:58:01 production1 postfix/smtp[5041]: fatal: dict_mysql: insufficient memory
Jul 28 10:58:01 production1 postfix/smtp[5042]: fatal: dict_mysql: insufficient memory
Jul 28 10:58:02 production1 postfix/qmgr[5028]: warning: private/smtp socket: malformed response
Jul 28 10:58:02 production1 postfix/qmgr[5028]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description
Jul 28 10:58:02 production1 postfix/master[5026]: warning: process /usr/libexec/postfix/smtp pid 5041 exit status 1
Jul 28 10:58:02 production1 postfix/master[5026]: warning: /usr/libexec/postfix/smtp: bad command startup -- throttling
Jul 28 10:58:02 production1 postfix/qmgr[5028]: warning: private/smtp socket: malformed response
Jul 28 10:58:02 production1 postfix/qmgr[5028]: warning: transport smtp failure -- see a previous warning/fatal/panic logfile record for the problem description
Jul 28 10:58:02 production1 postfix/master[5026]: warning: process /usr/libexec/postfix/smtp pid 5042 exit status 1

I was able to actually upgrade the mysql itself, just needed to downgrade shared-package (down to 5.6.21 version) and it started working again.

[Aleksandras (troskovas)]

Still affects in:
Percona-Server-shared-56.x86_64 5.6.26-rel74.0.el7 @percona-release-x86_64
Nov 3 12:49:28 some_server postfix/smtpd[12026]: fatal: dict_mysql: insufficient memory
Downgraded package to 5.6.21, fixed issue:
Percona-Server-shared-56.x86_64 5.6.21-rel70.1.el7 @percona-release-x86_64
Nov 3 12:52:37 some_serverpostfix/cleanup[12665]: 2B58E31A1: message-id=<20151103105237.2B58E31A1@some_server>

[Krunal Bauskar (krunal-bauskar)]

Sorry but I am confused as to what you upgrade what you downgraded ?
You tried upgrading PXC but then in last comment it seems like you downgraded PS.
Can you clarify and may be re-try this operation with latest 5.6.26-25.8

[Launchpad Janitor (janitor)]

[Expired for Percona XtraDB Cluster because there has been no activity for 60 days.]

[Aleksandras (troskovas)]

I have downgraded it to make it work.

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXC-1840