Kumar Ravi created HBASE-6965:
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Summary: Generic MXBean Utility class to support all JDK vendors
Key: HBASE-6965
URL: https://issues.apache.org/jira/browse/HBASE-6965
Project: HBase
Issue Type: Improvement
Components: build
Affects Versions: 0.94.1
Reporter: Kumar Ravi
Assignee: Kumar Ravi
Fix For: 0.94.3
This issue is related to JIRA https://issues.apache.org/jira/browse/HBASE-6945.
This issue is opened to propose the use of a newly created generic
org.apache.hadoop.hbase.util.OSMXBean class that can be used by other classes.
JIRA HBASE-6945 contains a patch for the class
org.apache.hadoop.hbase.ResourceChecker that uses OSMXBean. With the inclusion
of this new class, HBase can be built and become functional with JDKs and JREs
other than what is provided by Oracle.
This class uses reflection to determine the JVM vendor (Sun, IBM) and the
platform (Linux or Windows), and contains other methods that return the OS
properties - 1. Number of Open File descriptors; 2. Maximum number of File
Descriptors.
This class compiles without any problems with IBM JDK 7, OpenJDK 6 as well as
Oracle JDK 6. Junit tests (runDevTests category) completed without any failures
or errors when tested on all the three JDKs.The builds and tests were attempted
on branch hbase-0.94 Revision 1396305.
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