# InnoDB: Assertion failure

**URL:** <https://forums.percona.com/t/innodb-assertion-failure/3612>\
**Category:** Percona XtraDB Cluster 5.x\
**Created:** [July 14, 2014, 9:29am UTC](https://forums.percona.com/t/innodb-assertion-failure/3612 "2014-07-14T09:29:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Pre](https://avatars.discourse-cdn.com/v4/letter/p/ba8739/32.png) [@Pre](https://forums.percona.com/u/Pre)\
**Post date:** [July 14, 2014, 9:29am UTC](https://forums.percona.com/t/innodb-assertion-failure/3612/1 "2014-07-14T09:29:40Z")

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Hi there.

We are running a three-node pxc. During a performance test, one node is permanatly (after a few minutes; up to 1,5 h) crashing with the following error:

Is this a bug or just a false configuration parameter for the percona cluster? I am kind of clueless how to fix this issue. I read about downgrading the system from  
5.6 (5.6.15-56 is the version we are using) to 5.5.XX

Thanks for any help in advance

[mysqldlog.txt](https://forums.percona.com/uploads/short-url/hFDYNPE1GLT4Wi6hsxmWNT8Y0OL.txt) (3.5 KB)

[my.cnf.txt](https://forums.percona.com/uploads/short-url/2ccDLSX6FXz5lP8I3pEIvFmysGX.txt) (1.31 KB)

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**Author:** ![Pre](https://avatars.discourse-cdn.com/v4/letter/p/ba8739/32.png) [@Pre](https://forums.percona.com/u/Pre)\
**Post date:** [July 22, 2014, 3:45am UTC](https://forums.percona.com/t/innodb-assertion-failure/3612/2 "2014-07-22T03:45:35Z")

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We ran into a bug which is fixed in the latest release of Percona/Galera. Thread can be closed.  
[URL][https://bugs.launchpad.net/percona-xtradb-cluster/+bug/1342959[/URL]](https://bugs.launchpad.net/percona-xtradb-cluster/+bug/1342959%5B/URL%5D)  
[URL][Percona XtraDB Cluster](http://www.percona.com/doc/percona-xtradb-cluster/5.6/release-notes/Percona-XtraDB-Cluster-5.6.19-25.6.html%5B/URL%5D)