# NullPointerException in ContextIndexSearcher

**URL:** <https://discuss.elastic.co/t/nullpointerexception-in-contextindexsearcher/4447>\
**Category:** Elasticsearch\
**Created:** [May 20, 2011, 2:48pm UTC](https://discuss.elastic.co/t/nullpointerexception-in-contextindexsearcher/4447 "2011-05-20T14:48:53Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Michel\_Conrad](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@Michel\_Conrad](https://discuss.elastic.co/u/Michel_Conrad)\
**Post date:** [May 20, 2011, 2:48pm UTC](https://discuss.elastic.co/t/nullpointerexception-in-contextindexsearcher/4447/1 "2011-05-20T14:48:53Z")

</div>

Hi,

I got the following exception when running a 5 node cluster with 1  
node where the server is unstable and randomly restarting.

Michel

[2011-05-20 16:31:00,134][DEBUG][action.search.type]  
[Sunturion] [testindex][0], node[ZW6cHbQlSjOE5DczsaroNw], [R],  
s[STARTED]: Failed to execute  
[org.elasticsearch.action.search.SearchRequest@d5d0ade]  
java.lang.NullPointerException  
at org.elasticsearch.search.internal.ContextIndexSearcher.removeCollectors(ContextIndexSearcher.java:81)  
at org.elasticsearch.search.facet.FacetPhase.execute(FacetPhase.java:72)  
at org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:220)  
at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:222)  
at org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteQuery(SearchServiceTransportAction.java:134)  
at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryThenFetchAction.java:76)  
at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:192)  
at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.onFirstPhaseResult(TransportSearchTypeAction.java:268)  
at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.access$400(TransportSearchTypeAction.java:75)  
at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$3.onFailure(TransportSearchTypeAction.java:198)  
at org.elasticsearch.search.action.SearchServiceTransportAction$2.handleException(SearchServiceTransportAction.java:151)  
at org.elasticsearch.transport.netty.MessageChannelHandler.handleException(MessageChannelHandler.java:156)  
at org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:147)  
at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:99)  
at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)  
at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)  
at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)  
at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:302)  
at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:317)  
at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:299)  
at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:216)  
at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)  
at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)  
at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)  
at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:274)  
at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:261)  
at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:349)  
at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)  
at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)  
at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)  
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)  
at java.lang.Thread.run(Thread.java:662)

---

<div class="post-metadata">

**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [May 20, 2011, 2:50pm UTC](https://discuss.elastic.co/t/nullpointerexception-in-contextindexsearcher/4447/2 "2011-05-20T14:50:11Z")

</div>

This happens when providing an empty facet element in 0.16.1, fixed in 0.16 branch and upcoming 0.16.2.  
On Friday, May 20, 2011 at 5:48 PM, Michel Conrad wrote:

> Hi,
> 
> I got the following exception when running a 5 node cluster with 1  
> node where the server is unstable and randomly restarting.
> 
> Michel
> 
> [2011-05-20 16:31:00,134][DEBUG][action.search.type]  
> [Sunturion] [testindex][0], node[ZW6cHbQlSjOE5DczsaroNw], [R],  
> s[STARTED]: Failed to execute  
> [org.elasticsearch.action.search.SearchRequest@d5d0ade]  
> java.lang.NullPointerException  
> at org.elasticsearch.search.internal.ContextIndexSearcher.removeCollectors(ContextIndexSearcher.java:81)  
> at org.elasticsearch.search.facet.FacetPhase.execute(FacetPhase.java:72)  
> at org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:220)  
> at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:222)  
> at org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteQuery(SearchServiceTransportAction.java:134)  
> at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryThenFetchAction.java:76)  
> at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:192)  
> at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.onFirstPhaseResult(TransportSearchTypeAction.java:268)  
> at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.access$400(TransportSearchTypeAction.java:75)  
> at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$3.onFailure(TransportSearchTypeAction.java:198)  
> at org.elasticsearch.search.action.SearchServiceTransportAction$2.handleException(SearchServiceTransportAction.java:151)  
> at org.elasticsearch.transport.netty.MessageChannelHandler.handleException(MessageChannelHandler.java:156)  
> at org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:147)  
> at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:99)  
> at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)  
> at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)  
> at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)  
> at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:302)  
> at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:317)  
> at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:299)  
> at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:216)  
> at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)  
> at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)  
> at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)  
> at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:274)  
> at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:261)  
> at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:349)  
> at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)  
> at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)  
> at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:44)  
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)  
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)  
> at java.lang.Thread.run(Thread.java:662)

---

<div class="post-metadata">

**Author:** ![Michel\_Conrad](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@Michel\_Conrad](https://discuss.elastic.co/u/Michel_Conrad)\
**Post date:** [May 20, 2011, 2:54pm UTC](https://discuss.elastic.co/t/nullpointerexception-in-contextindexsearcher/4447/3 "2011-05-20T14:54:26Z")

</div>

Thanks, I'll try it out.

On Fri, May 20, 2011 at 4:50 PM, Shay Banon  
[shay.banon@elasticsearch.com](mailto:shay.banon@elasticsearch.com) wrote:

> This happens when providing an empty facet element in 0.16.1, fixed in 0.16  
> branch and upcoming 0.16.2.
> 
> On Friday, May 20, 2011 at 5:48 PM, Michel Conrad wrote:
> 
> Hi,
> 
> I got the following exception when running a 5 node cluster with 1  
> node where the server is unstable and randomly restarting.
> 
> Michel
> 
> [2011-05-20 16:31:00,134][DEBUG][action.search.type]  
> [Sunturion] [testindex][0], node[ZW6cHbQlSjOE5DczsaroNw], [R],  
> s[STARTED]: Failed to execute  
> [org.elasticsearch.action.search.SearchRequest@d5d0ade]  
> java.lang.NullPointerException  
> at  
> org.elasticsearch.search.internal.ContextIndexSearcher.removeCollectors(ContextIndexSearcher.java:81)  
> at org.elasticsearch.search.facet.FacetPhase.execute(FacetPhase.java:72)  
> at org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:220)  
> at  
> org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:222)  
> at  
> org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteQuery(SearchServiceTransportAction.java:134)  
> at  
> org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryThenFetchAction.java:76)  
> at  
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:192)  
> at  
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.onFirstPhaseResult(TransportSearchTypeAction.java:268)  
> at  
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.access$400(TransportSearchTypeAction.java:75)  
> at  
> org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$3.onFailure(TransportSearchTypeAction.java:198)  
> at  
> org.elasticsearch.search.action.SearchServiceTransportAction$2.handleException(SearchServiceTransportAction.java:151)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.handleException(MessageChannelHandler.java:156)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.handlerResponseError(MessageChannelHandler.java:147)  
> at  
> org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:99)  
> at  
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.seendUpstream(DefaultChannelPipeline.java:545)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)  
> at  
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:302)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:317)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FFrameDecoder.callDecode(FrameDecoder.java:299)  
> at  
> org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:216)  
> at  
> org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)  
> at  
> org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)  
> at  
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:274)  
> at  
> org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:261)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:349)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:280)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:200)  
> at  
> org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> at  
> org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$$1.run(DeadLockProofWorker.java:44)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)  
> at java.lang.Thread.run(Thread.java:662)

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 4:05am UTC](https://discuss.elastic.co/t/nullpointerexception-in-contextindexsearcher/4447/4 "2017-07-06T04:05:46Z")

</div>