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From adfel70 <adfe...@gmail.com>
Subject problem with facets - out of memory exception
Date Thu, 19 Dec 2013 09:17:59 GMT
Hi
I have a cluster of 14 nodes (7 shards, 2 replicas). each node with 6gb jvm.
solr 4.3.0
i have 400 million docs in the cluster, each node around 60gb of index.
I  index new docs each night, around a million a night.

As the index started to grow, i  started having problems of OutOfMmemory
when querying with facets.
the exception occurs in one of the nodes when querying a specific facet
field, when I  restart this node, and query again it doesn't happen, until I
perform some more indexing and then it might happen again with another facet
field.

the fields that cause the failure have less than 20 unique values.

any idea why this happens?
why restarting the node (without adding more memory) solves the problem
temporarily?
what solr does behind the scenes when asking for facets?

thnks.






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