[HBASE-6565] Coprocessor exec result Map is not thread safe

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.92.2, 0.94.0, 0.95.2
• Fix Version/s: 0.94.2
• Component/s: Client, Coprocessors
• Labels: coprocessors patch

Environment

hadoop1.0.2,hbase0.94,jdk1.6

• Hadoop Flags: Reviewed
• Tags: coprocessor
• Assignee: Kang Yuan
• Reporter: Kang Yuan
• Created: 13/Aug/12 06:18
• Updated: 07/Apr/13 04:46
• Resolved: 16/Aug/12 18:49

Description

I develop a coprocessor program ,but found some different results in repeated tests.for example,normally,the result's size is 10.but sometimes it appears 9.
I read the HTable.java code,found a TreeMap(thread-unsafe) be used in multithreading environment.It cause the bug happened

Issue Links

• is duplicated by: HBASE-6280 why using treeMap at default implement with class Batch.Callback