Hi,
I've recently encountered the following CircuitBreakingException
[2014-09-16 11:03:28,698][ERROR][indices.fielddata.breaker] [Master Khan]
New used memory 640211624 [610.5mb] from field [url] would be larger than
configured breaker: 639015321 [609.4mb], breaking
[2014-09-16 11:03:28,698][DEBUG][action.search.type ] [Master Khan]
[events_v2][4], node[N5VujlU7R0mr2aC9wdzOIw], [R], s[STARTED]: Failed to
execute [org.elasticsearch.action.search.SearchRequest@3814fd0c] lastShard
[true]
org.elasticsearch.search.query.QueryPhaseExecutionException:
[events_v2][4]: query[ConstantScore(*:*)],from[0],size[0]: Query Failed
[Failed to execute main query]
at
org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:162)
at
org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:261)
at
org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:206)
at
org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:203)
at
org.elasticsearch.search.action.SearchServiceTransportAction$23.run(SearchServiceTransportAction.java:517)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.ElasticsearchException:
org.elasticsearch.common.breaker.CircuitBreakingException: Data too large,
data for field [url] would be larger than limit of [639015321/609.4mb]
at
org.elasticsearch.index.fielddata.AbstractIndexFieldData.load(AbstractIndexFieldData.java:79)
at
org.elasticsearch.index.fielddata.plain.AbstractBytesIndexFieldData.load(AbstractBytesIndexFieldData.java:41)
The nodes were restarted with more memory, but obviously this isn't a long
term solution.
My understanding of the above Exception is that a query ran, that resulted
in the Fielddata cache's limit being breached.
My current plan is to try and find out which query is causing this by
monitoring the field data stats for the different queries,
and then to possibly look into either using fielddata filtering or doc
values in the mappings.
Do you guys have any other advice/suggestions/guidelines in dealing with
this sort of isssue?
Thanks
Dayo
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