# "Missing version string in comparison" error

**URL:** <https://forums.percona.com/t/missing-version-string-in-comparison-error/29200>\
**Category:** Percona XtraDB Cluster 8.x\
**Tags:** closed-no-reply\
**Created:** [March 18, 2024, 2:29pm UTC](https://forums.percona.com/t/missing-version-string-in-comparison-error/29200 "2024-03-18T14:29:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Lars\_Erik\_Dangvard\_J](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/lars_erik_dangvard_j/32/14572_2.png) [@Lars\_Erik\_Dangvard\_J](https://forums.percona.com/u/Lars_Erik_Dangvard_J)\
**Post date:** [March 18, 2024, 2:29pm UTC](https://forums.percona.com/t/missing-version-string-in-comparison-error/29200/1 "2024-03-18T14:29:32Z")

</div>

Hi all

I’m testing and crashing a node on purpose, so SST is initiated. And get this error on the joining/crashed node on startup. Everything completes and node is sync’ed.

```auto
2024-03-18T13:54:41.229997Z 0 [Note] [MY-000000] [WSREP] Initiating SST/IST transfer on JOINER side (wsrep_sst_xtrabackup-v2 --role 'joiner' --address '10.20.30.1' --datadir '/var/lib/mysql/' --basedir '/usr/' --plugindir '/usr/lib64/mysql/plugin/' --defaults-file '/etc/my.cnf' --defaults-group-suffix '' --parent '1' --mysqld-version '8.0.35-27.1' '' )
2024-03-18T13:54:41.304428Z 0 [ERROR] [MY-000000] [WSREP-SST] *******************ERROR**********************
2024-03-18T13:54:41.304572Z 0 [ERROR] [MY-000000] [WSREP-SST] Missing version string in comparison
2024-03-18T13:54:41.304588Z 0 [ERROR] [MY-000000] [WSREP-SST] left-side: operation:< right-side:2.4.29
2024-03-18T13:54:41.304630Z 0 [ERROR] [MY-000000] [WSREP-SST] *******************ERROR**********************
2024-03-18T13:54:41.952338Z 2 [Note] [MY-000000] [WSREP] Prepared SST request: xtrabackup-v2|10.20.30.1:4444/xtrabackup_sst//1

```

“left-side: operation:\< right-side:2.4.29” seems to be the problem.

I’m using the Docker image percona/percona-xtradb-cluster:8.0 for PXC.

I guess 2.4.29 (XtraBackup) is not possible to retrieve inside the Docker container.

Can I ignore this error or can it be fixed?