**Reported in Launchpad by Raghavendra D Prabhu last update 19-07-2017 06:20:09

When xtrabackup is taken with

[xtrabackup]
compress
compact
parallel=4

and on other node, --rebuild-indexes is passed.

It crashes with – 130620 11:16:40 InnoDB: Assertion failure in thread 139853708203776 in file rem0rec.c line 561

Full log here - https://gist.github.com/ronin13/3075e8ad983bf57514ec

With compact disabled, it worked fine.

The data on source node was generated by this RQG:

perl gentest.pl --dsn=dbi:mysql:host=127.0.0.1:port=4000:user=root:database=test:password=test --gendata=conf/galera/galera_stress.zz --grammar=conf/galera/galera_stress.yy --threads=5 --queries=10000000000 --duration=30 --seed=time --reporter=Shutdown,Backtrace,QueryTimeout --mask=0 --mask-level=0 --engine=InnoDB

where the galera_*.{yy,zz} are from https://bazaar.launchpad.net/~elenst/randgen/mariadb-patches/revision/881

This was a non-debug build.