[KUDU-2027] Connection negotiation timeout to tablet server is treated as unretriable error on scan operations

• Type: Bug
• Status: In Review
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.0.0, 1.2.0, 1.3.0, 1.4.0
• Labels: client scanner
• Code Review: https://gerrit.cloudera.org/#/c/7037/
• Assignee: Unassigned
• Reporter: Alexey Serbin
• Created: 31/May/17 17:38
• Updated: 08/Jul/21 06:10

Description

In the case that the leader tablet server is up but "frozen", the client will get a connection negotiation timeout while starting or continuing a scan operation. The code in KuduScanner::Data::OpenTablet() does not allow the scan operation to failover to different tablet server even if operation timeout setting would allow to wait for a new leader to be elected.

So, the client gets a failure even if there has been a leader re-election within the client-provided deadline.

Issue Links

• is related to: KUDU-1580 Connection negotiation timeout to tablet server is treated as unretriable error on write operations