Shawn Heisey created SOLR-4526:
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Summary: Admin UI dependence on UnixOperationSystemMXBean
Key: SOLR-4526
URL: https://issues.apache.org/jira/browse/SOLR-4526
Project: Solr
Issue Type: Bug
Components: web gui
Affects Versions: 4.1
Environment: Oracle Corporation OpenJDK 64-Bit Server VM (1.7.0_15
23.7-b01)
Reporter: Shawn Heisey
A user on IRC was having trouble getting file descriptor counts and JVM memory
usage in the admin UI, but it worked perfectly fine on another system. The
problem system uses OpenJDK, the other one uses the Apple JDK. The user had
tracked it down to an exception while trying to get open file descriptor info.
Looking in the SystemInfoHandler.java file, I see a comment reference to
com.sun.management.UnixOperatingSystemMXBean at the point where it is getting
file descriptor info. A little extra searching turned up ZOOKEEPER-1579 which
refers to HBASE-6495, the same problem with OpenJDK.
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