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ODA node throwing "DCS-10001:Internal error encountered: Fail to start hand shake to localhost:7070"

in Oracle Database Appliance (ODA) (MOSC) 1 commentAnswered

2-node ODA 19.8. Trying to upgrade to 19.9 .

Upgraded DCS agent and now running odacli commands on node 0 generates subject error.

Seems to be related to zookeeper:

head /opt/oracle/dcs/log/dcsagent-stderr_20210126-1928.log

DcsException{errorHttpCode=InternalError, msg=Internal error encountered: DCS-10001:Internal error encountered: KeeperErrorCode = ConnectionLoss for /elections.., msgId=10001, causedBy=DcsException{errorHttpCode=InternalError, msg=Internal error encountered: KeeperErrorCode = ConnectionLoss for /elections., msgId=10001, causedBy=org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /elections}}

Restarted zookeeper and DCS agent, no change.

Have validated that both nodes have correct time.

At this point, my only option is to re-image the node, which I'm hesitant to do since node 1 is OK.

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