Dhruve Ashar created SPARK-21181: ------------------------------------ Summary: Suppress memory leak errors reported by netty Key: SPARK-21181 URL: https://issues.apache.org/jira/browse/SPARK-21181 Project: Spark Issue Type: Bug Components: Input/Output Affects Versions: 2.1.0 Reporter: Dhruve Ashar Priority: Minor
We are seeing netty report memory leak erros like the one below after switching to 2.1. {code} ERROR ResourceLeakDetector: LEAK: ByteBuf.release() was not called before it's garbage-collected. Enable advanced leak reporting to find out where the leak occurred. To enable advanced leak reporting, specify the JVM option '-Dio.netty.leakDetection.level=advanced' or call ResourceLeakDetector.setLevel() See http://netty.io/wiki/reference-counted-objects.html for more information. {code} Looking a bit deeper, Spark is not leaking any memory here, but it is confusing for the user to see the error message in the driver logs. After enabling, '-Dio.netty.leakDetection.level=advanced', netty reveals the SparkSaslServer to be the source of these leaks. Sample trace :https://gist.github.com/dhruve/b299ebc35aa0a185c244a0468927daf1 -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org