[SOLR-4526] Admin UI depends on optional system info

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1
• Fix Version/s: 4.2, 6.0
• Component/s: Admin UI

Environment

Oracle Corporation OpenJDK 64-Bit Server VM (1.7.0_15 23.7-b01)

• Assignee: Stefan Matheis
• Reporter: Shawn Heisey
• Created: 04/Mar/13 17:45
• Updated: 16/Feb/17 15:55
• Resolved: 05/Mar/13 15:03

Description

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-6945, the same problem with OpenJDK.

Issue Links

• is related to: HBASE-6945 Compilation errors when using non-Sun JDKs to build HBase-0.94
• is related to: ZOOKEEPER-1579 Compile error of UnixOperationSystemMXBean with open JDK