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https://issues.apache.org/jira/browse/SOLR-6379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man updated SOLR-6379:
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Attachment: SOLR-6379.patch
Attaching a new test that seems to recreate teh general problem w/o involving
any pivot code -- just a basic search and check of the numFound count.
the test flow in a nutshell:
* build a random index of at least 500 docs
* pick 20 (simple) random queries and record the numFound for each
* loop 100 times over this "static" collection, executing each of the 20
queries and checking the count
* loop 100 times over the collection again, but this time randomly inject some
async "addreplica" calls (max 5 per shard, TODO: randomly "deletereplica"
occasionally)
On my system, the first 100 iterations work fine, but in the second iteration,
when random addreplica calls are included, i get failures where
Seed never seems to matter: at some point during the second loop, there is
always a failure where a search returns 0 docs instead of the expected count.
> new replicas seem to be nvolved in queries before they are ready
> ----------------------------------------------------------------
>
> Key: SOLR-6379
> URL: https://issues.apache.org/jira/browse/SOLR-6379
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Attachments: SOLR-6379.patch
>
>
> spin off of SOLR-2894 where sarowe & miller were getting failures from
> TestCloudPivot that seemed unrelated to any of hte distrib pivot logic itself.
> in particular: adding a call to "waitForThingsToLevelOut" at the start of the
> test, even before indexing any docs, seemed to work around the problem -- but
> even if all replicas aren't yet up when the test starts, we should either get
> a failure when adding docs (ie: no replica hosting the target shard) or
> queries should only be routed to the replicas that are up and fully caught up
> with the rest of the collection.
> (NOTE: we're specifically talking about a situation where the set of docs in
> the collection is static during the query request)
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