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Posted to dev@atlas.apache.org by "Hemanth Yamijala (JIRA)" <ji...@apache.org> on 2016/02/04 12:58:39 UTC

[jira] [Created] (ATLAS-471) Atlas Server could run out of memory due to Scala memory leak

Hemanth Yamijala created ATLAS-471:
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             Summary: Atlas Server could run out of memory due to Scala memory leak
                 Key: ATLAS-471
                 URL: https://issues.apache.org/jira/browse/ATLAS-471
             Project: Atlas
          Issue Type: Bug
            Reporter: Hemanth Yamijala
            Priority: Critical


We noticed our servers running OutOfMemory occasionally, particularly under heavy query loads. Profiling the app with YourKit, I found a lot of instances of {{scala.util.parsing.combinator.Parsers}}, {{java.lang.ThreadLocal$ThreadLocalMap}} and {{org.apache.atlas.query.QueryLexer}} objects. These object counts increase steadily over time as seen after taking multiple snapshots.



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