[HBASE-18255] Time-Delayed HBase Performance Degradation with Java 7

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.3.1, 1.2.6, 1.1.11
• Fix Version/s: 1.4.0, 1.3.2, 1.1.12, 1.2.7
• Component/s: Performance
• Labels: jdk7
• Hadoop Flags: Reviewed

Release Note

This change sets the JVM property ReservedCodeCacheSize to 256MB in the provided hbase-env.sh example file. The specific value for this property attempts to prevent performance issues seen when HBase using Java 7. The value set is the same as the default when using Java8.

• Assignee: Vladimir Rodionov
• Reporter: Vladimir Rodionov
• Created: 22/Jun/17 00:00
• Updated: 01/Aug/18 06:22
• Resolved: 05/Jul/17 21:08

Description

The good summary of the issue and provided resolution can be found in this article:
https://community.hortonworks.com/articles/105802/time-delayed-hbase-performance-degradation-with-ja.html

In a few words, due to internal JVM 7 bug (which has been addressed only in Java 8), HotSpot code cache can become full and after that ALL JIT compilations get suspended indefinitely. The default value for code cache size in JVM 7 is quite low: 48MB. It is recommended to increase this value at least to 256MB (default in JVM 8).

This BUG affects only 1.x

Issue Links

• relates to: HBASE-18479 should apply HBASE-18255 to HBASE_MASTER_OPTS too