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Posted to hdfs-dev@hadoop.apache.org by GitBox <gi...@apache.org> on 2019/10/18 15:59:27 UTC
[GitHub] [hadoop-ozone] adoroszlai commented on issue #27: HDDS-2278. Run S3
test suite on OM HA cluster.
adoroszlai commented on issue #27: HDDS-2278. Run S3 test suite on OM HA cluster.
URL: https://github.com/apache/hadoop-ozone/pull/27#issuecomment-543810038
@bharatviswa504 @elek I think the problem is with the upgraded Ratis (https://github.com/apache/hadoop-ozone/pull/26#pullrequestreview-302565890). Leader election problem affects OM HA.
1. The pull request [source branch](https://github.com/bharatviswa504/hadoop-ozone/commits/HDDS-2278) is based on 920dde90, which precedes Ratis upgrade 546e36bf. Test passes locally when checking out this branch. This is what CI is testing.
2. Applying the patch on current master (2529cee1), the test fails locally. Log is full of leader election attempts:
```
om1_1 | 2019-10-18 15:55:51,883 INFO impl.RaftServerImpl: om1@group-562213E44849: changes role from CANDIDATE to FOLLOWER at term 3601 for DISCOVERED_A_NEW_TERM
...
om1_1 | 2019-10-18 15:55:52,026 INFO impl.RaftServerImpl: om1@group-562213E44849: changes role from FOLLOWER to CANDIDATE at term 3601 for changeToCandidate
...
om1_1 | 2019-10-18 15:55:52,038 INFO impl.RaftServerImpl: om1@group-562213E44849: changes role from CANDIDATE to FOLLOWER at term 3602 for DISCOVERED_A_NEW_TERM
```
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