[HBASE-8144] Limit number of attempts to assign a region

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.98.0, 0.95.0
• Component/s: Region Assignment
• Hadoop Flags: Reviewed
• Assignee: Jimmy Xiang
• Reporter: Jimmy Xiang
• Created: 19/Mar/13 19:17
• Updated: 23/Sep/13 18:31
• Resolved: 28/Mar/13 17:03

Description

In sending a region open request to a region server, we make sure we try at most some configured times. However, once the request is accepted by the region server, the region could go through this transition forever: failed_open (in ZK) => closed => opening => failed_open (in ZK), assuming no RPC/network issue.

It will be good to break the loop and limit the number of tries and move the region to failed_open state (will be introduced in HBASE-8137)

Issue Links

• is related to: HBASE-8049 If a RS cannot use a compression codec, it should have a retry limit on checking results of CompressionTest
• is related to: HBASE-8215 Removing existing .regioninfo in writeRegioninfoOnFilesystem
• relates to: HBASE-8049 If a RS cannot use a compression codec, it should have a retry limit on checking results of CompressionTest
• relates to: HBASE-8137 Add failed to open/close region state