[ACCUMULO-2693] Tablet Server Failed to "add Datanode"

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 1.6.0
• Component/s: tserver
• Labels: logging

Environment

1.6.0 RC2, starting CI

• Assignee: Unassigned
• Reporter: Mike Drob
• Created: 17/Apr/14 22:20
• Updated: 20/Jan/21 17:59
• Resolved: 20/Jan/21 17:59

Description

Right when starting CI, I got the following error message on the monitor, and potentially related DEBUG statements in the tserver log.

2014-04-17 15:04:17,940 [log.DfsLogger] ERROR: java.io.IOException: Failed to add a datanode.  User may turn off this feature by setting dfs.client.block.write.replace-datanode-on-failure.policy in configu
ration, where the current policy is DEFAULT.  (Nodes: current=[10.20.212.138:50010, 10.20.212.116:50010], original=[10.20.212.138:50010, 10.20.212.116:50010])
2014-04-17 15:04:17,941 [log.DfsLogger] DEBUG: DfsLogger.open() begin
2014-04-17 15:04:17,942 [fs.VolumeManagerImpl] DEBUG: Found CREATE enum CREATE
2014-04-17 15:04:17,942 [fs.VolumeManagerImpl] DEBUG: Found synch enum SYNC_BLOCK
2014-04-17 15:04:17,943 [fs.VolumeManagerImpl] DEBUG: CreateFlag set: [CREATE, SYNC_BLOCK]
2014-04-17 15:04:17,943 [fs.VolumeManagerImpl] DEBUG: creating hdfs://nameservice1/accumulo/wal/a2414.halxg.cloudera.com+10011/6a3fb666-b263-400b-b480-64cc250fbf2e with SYNCH_BLOCK flag

This error seems like it was probably completely harmless, so it should be a warn or info.