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Posted to dev@lucene.apache.org by "Vannia Rajan (JIRA)" <ji...@apache.org> on 2017/08/25 12:53:00 UTC
[jira] [Updated] (SOLR-11287) Sub-shards by SPLITSHARD loses data
on restarting SOLR
[ https://issues.apache.org/jira/browse/SOLR-11287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vannia Rajan updated SOLR-11287:
--------------------------------
Labels: documentation-update (was: )
Priority: Minor (was: Major)
Issue Type: Improvement (was: Bug)
> Sub-shards by SPLITSHARD loses data on restarting SOLR
> ------------------------------------------------------
>
> Key: SOLR-11287
> URL: https://issues.apache.org/jira/browse/SOLR-11287
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Affects Versions: 5.5.1
> Environment: Ubuntu 64-bit 32-core server, 240GB RAM
> Reporter: Vannia Rajan
> Priority: Minor
> Labels: documentation-update
>
> We are running SOLR 5.5.1 with 4 nodes (1 shard per node). We are in the process of splitting the 4 shards into 8 shards.
> The SPLITSHARD collections API works great - it does create the sub-shards and activates sub-shards, inactivates the parent shard upon completion. The row count compard with parent shard vs sub-shards are matching. However, the data in sub-shards doesn't seem to be persistent in our case.
> A restart of SOLR leaves the sub-shards with 0 documents with their data directory sizes getting reduced from 40+ GB to 71KB.
> If I'm missing any other steps to be followed after SPLITSHARD to make the data in sub-shards persistent, please let me know. Otherwise, I feel this may be a bug in v5.5.1.
> Note: I was able to manually set the states of parent to "active" and children with 0 documents as "inactive" by setting /collections/{collection}/state.json in zookeeper, to get back the lost data.
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