[HBASE-1976] HBaseConfiguration implements hashCode() without implementing equals()

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 0.20.1
• Fix Version/s: 0.90.0

Environment

HBase

• Assignee: Unassigned
• Reporter: Age Mooij
• Created: 12/Nov/09 16:38
• Updated: 20/Nov/15 13:01
• Resolved: 03/Sep/10 04:58

Description

I was browsing though the HBase 0.20.1 code in order to learn about the way HBase deals with Configuration and I noticed that HBaseConfiguration overrides hashCode() without implementing equals(). This can cause some tricky, hard to debug problems whenever instances of this class are added to Maps or HashSets.

Issue Links

• relates to: HBASE-1251 HConnectionManager.getConnection(HBaseConfiguration) returns same HConnection for different HBaseConfigurations
• relates to: HBASE-2027 HConnectionManager.HBASE_INSTANCES leaks TableServers
• relates to: HBASE-2925 LRU of HConnectionManager.HBASE_INSTANCES breaks if HBaseConfiguration is changed