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Posted to dev@lucene.apache.org by "Yago Riveiro (JIRA)" <ji...@apache.org> on 2013/11/05 12:09:20 UTC
[jira] [Updated] (SOLR-4260) Inconsistent numDocs between leader
and replica
[ https://issues.apache.org/jira/browse/SOLR-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yago Riveiro updated SOLR-4260:
-------------------------------
Attachment: 192.168.20.102-replica1.png
192.168.20.104-replica2.png
clusterstate.png
> Inconsistent numDocs between leader and replica
> -----------------------------------------------
>
> Key: SOLR-4260
> URL: https://issues.apache.org/jira/browse/SOLR-4260
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 5.0
> Environment: 5.0.0.2013.01.04.15.31.51
> Reporter: Markus Jelsma
> Priority: Critical
> Fix For: 5.0
>
> Attachments: 192.168.20.102-replica1.png, 192.168.20.104-replica2.png, clusterstate.png
>
>
> After wiping all cores and reindexing some 3.3 million docs from Nutch using CloudSolrServer we see inconsistencies between the leader and replica for some shards.
> Each core hold about 3.3k documents. For some reason 5 out of 10 shards have a small deviation in then number of documents. The leader and slave deviate for roughly 10-20 documents, not more.
> Results hopping ranks in the result set for identical queries got my attention, there were small IDF differences for exactly the same record causing a record to shift positions in the result set. During those tests no records were indexed. Consecutive catch all queries also return different number of numDocs.
> We're running a 10 node test cluster with 10 shards and a replication factor of two and frequently reindex using a fresh build from trunk. I've not seen this issue for quite some time until a few days ago.
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