Teddy Choi created HIVE-26600:
---------------------------------
Summary: Handle failover during optimized bootstrap
Key: HIVE-26600
URL: https://issues.apache.org/jira/browse/HIVE-26600
Project: Hive
Issue Type: Bug
Reporter: Teddy Choi
Assignee: Rakshith C
when the reverse policy is enabled from DR to PROD, there is a situation
wherein the user may initiate a failover from DR to PROD before the optimized
bootstrap is ever run.
Current observations:
* Repl Dump will place a failover ready marker but failover metadata won't be
generated.
* Repl Load will throw an error since failover will be set to true but
failovermetadata is missing.
Replication fails and we reach an undefined state.
Fix :
* create failover ready marker only during second cycle of optimized bootstrap
if possible.
* since some tables may need to be bootstrapped, it may take upto 3 cycles
before failover from DR to PROD is complete.
* if no tables are modified, second dump from DR to PROD will be marked as
failover ready.
Result:
* users can initiate a failover immediately after enabling reverse policy
without any hassles.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
