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https://issues.apache.org/jira/browse/SOLR-8791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15181539#comment-15181539
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Shalin Shekhar Mangar commented on SOLR-8791:
---------------------------------------------
Yeah it's not something which should alarm a user. It can be changed to a
warning at least. Detection may be tricky though. Go ahead and improve as you
see fit.
> ManagedIndexSchema has race of schemaZkVersion causing BadVersionException
> --------------------------------------------------------------------------
>
> Key: SOLR-8791
> URL: https://issues.apache.org/jira/browse/SOLR-8791
> Project: Solr
> Issue Type: Bug
> Environment: 7.0 snapshot
> Reporter: David Smiley
>
> I started SolrCloud using a single node, 2 shard, 2 replica per shard setup
> with the data driven schema config. I used {{bin/solr start -c -e cloud}} to
> do this, although I got the same ultimate problem when doing the setup more
> manually. Then I used curl to POST a large CSV file of data. At the end, I
> looked in my logs and I saw this:
> {noformat}
> 465889 INFO (qtp680576081-45) [c:geonames s:shard1 r:core_node4
> x:geonames_shard1_replica2] o.a.s.s.ManagedIndexSchema Persisted managed
> schema version 1 at /configs/data_driven_schema_configs/managed-schema
> 465889 ERROR (qtp680576081-15) [c:geonames s:shard2 r:core_node3
> x:geonames_shard2_replica2] o.a.s.s.ManagedIndexSchema Bad version when
> trying to persist schema using 0 due to:
> org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode =
> BadVersion for /configs/data_driven_schema_configs/managed-schema
> {noformat}
> When viewing my logs in the admin UI, I actually saw the error message around
> ~5 times or so in a row, some from the very same replica.
> disclaimer: I'm using the latest 7.0 snapshot master branch with some patches
> that appear innocently unrelated to this
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