[HBASE-24499] Use a client property for SaslConnection MAX_ATTEMPTS (currently hardcoded to 5)

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.3.2
• Fix Version/s: 3.0.0-alpha-1, 2.3.0, 1.7.0, 2.1.10, 1.4.14, 2.2.6
• Component/s: Client, security
• Hadoop Flags: Reviewed
• Assignee: Ravi Kishore Valeti
• Reporter: Ravi Kishore Valeti
• Created: 03/Jun/20 05:47
• Updated: 10/Aug/20 23:27
• Resolved: 05/Jun/20 15:11

Description

The no.of retries for Sasl handshake is hardcoded to 5 (MAX_ATTEMPTS). Use cases which have strict SLAs on their operation timeouts need this to be configurable to meet their SLAs.

Sample Scenario:

• RS is slow in accepting connections but is slow in responding to requests.
• Client makes a Sasl Connection attempt but times out on read (can be configurable via hbase.ipc.client.socket.timeout.read) and retries 5 times at this time (this is not configurable) and eventually bails out.

Make this configurable by a new client property (say hbase.security.relogin.maxretries) so that clients/usecases can override and meet their timeout SLAs.

Issue Links

• links to: GitHub Pull Request #1854
• links to: GitHub Pull Request #1856
• links to: GitHub Pull Request #1857