Todd Lipcon created KUDU-2157: --------------------------------- Summary: 1.5 -> 1.4 -> 1.5 downgrade/re-upgrade can result in non-startable tservers Key: KUDU-2157 URL: https://issues.apache.org/jira/browse/KUDU-2157 Project: Kudu Issue Type: Bug Components: fs, tserver Affects Versions: 1.4.0, 1.5.0 Reporter: Todd Lipcon
I had a cluster running 1.5, which I then downgraded to 1.4 and ran for a while (including tablet copies happening). I then upgraded back to 1.5, but the tservers would not start. The issue is that the tablet-meta files on 1.5 had gotten invalid path IDs written into them during tablet copies that occurred on 1.4. The 1.4 servers had copied a remote TabletMeta file, and preserved the unknown protobuf field and serialized it locally. Then when we upgraded again, they failed to validate since they didn't match the local path UUIDs. -- This message was sent by Atlassian JIRA (v6.4.14#64029)