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Published Jul. 2, 2025

Search service restarting continuously

Written By

Anishq Sharma

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Issue

  • Search service is restarting continuously having similar errors as below:
search[search-0] java.lang.StackOverflowError: null
at org.apache.lucene.util.PriorityQueue.<init>(PriorityQueue.java:105) ~[lucene-core-7.7.3.jar:7.7.3 1a0d2a901dfec93676b0fe8be425101ceb754b85 - noble - 2020-04-21 10:31:55]
at org.apache.lucene.util.PriorityQueue.<init>(PriorityQueue.java:47) ~[lucene-core-7.7.3.jar:7.7.3 1a0d2a901dfec93676b0fe8be425101ceb754b85 - noble - 2020-04-21 10:31:55]
at org.apache.lucene.search.MinShouldMatchSumScorer$1.<init>(MinShouldMatchSumScorer.java:65) ~[lucene-core-7.7.3.jar:7.7.3 1a0d2a901dfec93676b0fe8be425101ceb754b85 - noble - 2020-04-21 10:31:55]
at org.apache.lucene.search.MinShouldMatchSumScorer.cost(MinShouldMatchSumScorer.java:65) ~[lucene-core-7.7.3.jar:7.7.3 1a0d2a901dfec93676b0fe8be425101ceb754b85 - noble - 2020-04-21 10:31:55]
at org.apache.lucene.search.Boolean2ScorerSupplier.computeCost(Boolean2ScorerSupplier.java:70) ~[lucene-core-7.7.3.jar:7.7.3 1a0d2a901dfec93676b0fe8be425101ceb754b85 - noble - 2020-04-21 10:31:55]
at org.apache.lucene.search.Boolean2ScorerSupplier.cost(Boolean2ScorerSupplier.java:80) ~[lucene-core-7.7.3.jar:7.7.3 1a0d2a901dfec93676b0fe8be425101ceb754b85 - noble - 2020-04-21 10:31:55]
at java.util.stream.ReferencePipeline$5$1.accept(ReferencePipeline.java:229) ~[?:?]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[?:?]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[?:?]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) ~[?:?]
at java.util.stream.ForEachOps$ForEachOp$OfLong.evaluateSequential(ForEachOps.java:209) ~[?:?]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
at java.util.stream.LongPipeline.forEach(LongPipeline.java:421) ~[?:?]

Environment

  • Liferay DXP 7.1
  • Liferay DXP 7.2
  • Liferay DXP 7.3

Resolution

  • There might be multiple reasons for StackOverflowError to trigger. One of the reasons is creation of heavy segments.
  • Need to identify such segments and remove the same.
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