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Steps to Reproduce

Trigger the REST call

Expected Results

No errors in the logs

Actual Results

REST call works, but the below exception is thrown in the atlassian-jira.log file:

2018-02-28 17:01:19,405 http-nio-8081-exec-11 INFO admin 1021x2645x1 lrl854 127.0.0.1 /rest/api/2/index/summary [c.a.j.index.ha.DefaultIndexRecoveryManager] Latest index date: {2018-02-28 15:29:01}, Latest DB date: {2018-02-28 15:29:01}
2018-02-28 17:01:19,415 http-nio-8081-exec-11 ERROR admin 1021x2645x1 lrl854 127.0.0.1 /rest/api/2/index/summary [c.a.j.issue.index.DefaultIndexManager] Error while resetting searcher: ISSUE message: java.io.IOException
com.atlassian.jira.index.DelayCloseable$AlreadyClosedException: java.io.IOException
        at com.atlassian.jira.index.DelayCloseable$Helper.close(DelayCloseable.java:77)
        at com.atlassian.jira.index.DelayCloseSearcher.close(DelayCloseSearcher.java:57)
        at com.atlassian.jira.issue.index.SearcherCache.closeSearcher(SearcherCache.java:79)
        at com.atlassian.jira.issue.index.SearcherCache.closeSearchers(SearcherCache.java:60)
        at com.atlassian.jira.issue.index.DefaultIndexManager.flushThreadLocalSearchers(DefaultIndexManager.java:1020)
        at com.atlassian.jira.util.searchers.ThreadLocalSearcherCache.resetSearchers(ThreadLocalSearcherCache.java:31)
        ... 20 filtered
        at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)
        ... 26 filtered
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException
        at com.atlassian.jira.index.DelayCloseable$AlreadyClosedException.<init>(DelayCloseable.java:37)
        ... 57 more
Notes

Under heavy load on Jira and execution of  /rest/api/2/index/summary may close index that is still being read by another thread and as a result cause  SIGSEGV like this
# A fatal error has been detected by the Java Runtime Environment:
#  SIGSEGV (0xb) at pc=0x00007f66338faaea, pid=66449, tid=0x00007f4dd99f1700
# JRE version: Java(TM) SE Runtime Environment (8.0_151-b12) (build 1.8.0_151-b12)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.151-b12 mixed mode linux-amd64 )
# Problematic frame:
# J 8554 C2 org.apache.lucene.store.MMapDirectory$MMapIndexInput.readByte()B (81 bytes) @ 0x00007f66338faaea [0x00007f66338faaa0+0x4a]

More information why this is happening can be found here https://issues.apache.org/jira/browse/LUCENE-6943?focusedCommentId=15070960&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15070960

Workaround

Do not use /rest/api/2/index/summary

Steps to Reproduce

Expected Results

Actual Results

Notes

Workaround

Attachments

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