# Elasticsearch 2.2 issues

**URL:** <https://discuss.elastic.co/t/elasticsearch-2-2-issues/46425>\
**Category:** Elasticsearch\
**Created:** [April 5, 2016, 3:36pm UTC](https://discuss.elastic.co/t/elasticsearch-2-2-issues/46425 "2016-04-05T15:36:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Artem\_Miroshnichenko](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/artem_miroshnichenko/32/8903_2.png) [@Artem\_Miroshnichenko](https://discuss.elastic.co/u/Artem_Miroshnichenko)\
**Post date:** [April 5, 2016, 3:36pm UTC](https://discuss.elastic.co/t/elasticsearch-2-2-issues/46425/1 "2016-04-05T15:36:19Z")

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Hello.  
We use elasticsearch version 1.3.4-1 in our production with ~7000 req/per sec. Now we want to move our prodcution environment to a newer version of the elastic 2.2.

> cluster.name: index1  
> node.name: host1  
> node.rack: c-kxxx  
> path.data: /var/lib/elasticsearch  
> path.logs: /var/log/elasticsearch  
> network.host: 0.0.0.0  
> http.port: 9075  
> transport.tcp.port: 9076  
> discovery.zen.ping.unicast.hosts: ["host1", "host2", "host3", "host4", "host5"]

During testing, we had problems with the responses from the engine. A lot of blocked threads in the query cache.

> "elasticsearch[dc580][search][T#300]" #473 daemon prio=5 os\_prio=0 tid=0x00007feac40a2000 nid=0x3f0a waiting for monitor entry [0x00007fe862308000]  
> java.lang.Thread.State: BLOCKED (on object monitor)  
> at org.apache.lucene.search.LRUQueryCache.get(LRUQueryCache.java:218)  
> - waiting to lock \<0x0000000444508478\> (a org.elasticsearch.indices.cache.query.IndicesQueryCache$1)  
> at org.apache.lucene.search.LRUQueryCache$CachingWrapperWeight.scorer(LRUQueryCache.java:622)  
> at org.elasticsearch.indices.cache.query.IndicesQueryCache$CachingWeightWrapper.scorer(IndicesQueryCache.java:263)  
> at org.apache.lucene.search.DisjunctionMaxQuery$DisjunctionMaxWeight.scorer(DisjunctionMaxQuery.java:177)  
> at org.apache.lucene.search.LRUQueryCache$CachingWrapperWeight.scorer(LRUQueryCache.java:628)  
> at org.elasticsearch.indices.cache.query.IndicesQueryCache$CachingWeightWrapper.scorer(IndicesQueryCache.java:263)  
> at org.apache.lucene.search.BooleanWeight.scorer(BooleanWeight.java:280)

Someone faced with such problems?

Best Regards, Artem Miroshnichenko.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 5, 2017, 11:02pm UTC](https://discuss.elastic.co/t/elasticsearch-2-2-issues/46425/2 "2017-07-05T23:02:13Z")

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Closed on July 5, 2017, 11:02pm UTC