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https://issues.apache.org/jira/browse/UNOMI-271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17044402#comment-17044402
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Serge Huber commented on UNOMI-271:
-----------------------------------
Thanks Yakub,
I'm copying the exception here:
{code}
[2020-02-14T11:33:02,915][DEBUG][o.e.a.s.TransportSearchAction] [yakub-XPS13]
[context-segment][1], node[KFzEVT9YRj2LWzuiH29WrA], [P], s[STARTED],
a[id=h4Z32W1NTCWzkAxGnwd2qA]: Failed to execute
[SearchRequest{searchType=QUERY_THEN_FETCH, indices=[context-segment],
indicesOptions=IndicesOptions[ignore_unavailable=false, allow_no_indices=true,
expand_wildcards_open=true, expand_wildcards_closed=false,
allow_aliases_to_multiple_indices=true, forbid_closed_indices=true,
ignore_aliases=false, ignore_throttled=true], types=[], routing='null',
preference='null', requestCache=null, scroll=Scroll{keepAlive=1h},
maxConcurrentShardRequests=0, batchedReduceSize=512, preFilterShardSize=128,
allowPartialSearchResults=true, localClusterAlias=null,
getOrCreateAbsoluteStartMillis=-1, ccsMinimizeRoundtrips=true,
source={"from":0,"size":10,"query":{"match_all":{"boost":1.0}},"version":true,"_source":{"includes":[],"excludes":[]}}}]
org.elasticsearch.transport.RemoteTransportException:
[yakub-XPS13][127.0.0.1:9300][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.ElasticsearchException: Trying to create too many
scroll contexts. Must be less than or equal to: [500]. This limit can be set by
changing the [search.max_open_scroll_context] setting.
at
org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:542)
~[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:348)
~[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.search.SearchService.lambda$executeQueryPhase$1(SearchService.java:340)
~[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.action.ActionListener.lambda$map$2(ActionListener.java:145)
~[elasticsearch-7.4.2.jar:7.4.2]
at org.elasticsearch.action.ActionListener$1.onResponse(ActionListener.java:62)
[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.search.SearchService.lambda$rewriteShardRequest$7(SearchService.java:1043)
[elasticsearch-7.4.2.jar:7.4.2]
at org.elasticsearch.action.ActionRunnable$1.doRun(ActionRunnable.java:45)
[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:44)
[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:773)
[elasticsearch-7.4.2.jar:7.4.2]
at
org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
[elasticsearch-7.4.2.jar:7.4.2]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[?:?]
at java.lang.Thread.run(Thread.java:830) [?:?]
{code}
It seems to me like there might be a scroll leak.
> Creating around 20 segments at once will break unomi
> ----------------------------------------------------
>
> Key: UNOMI-271
> URL: https://issues.apache.org/jira/browse/UNOMI-271
> Project: Apache Unomi
> Issue Type: Bug
> Components: build, core
> Affects Versions: 1.5.0
> Reporter: Yakub Ilyasov
> Priority: Major
>
> Made a script to test ComparisonOperators, but I found out creating a lot of
> segment in a short time will cause unomi to break for a little while.
> Code: [https://github.com/IlyasovYakub/test_comparison_operator]
> More info can be found in the wiki of the code.
> I thought I might let you guys know this happens :)
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