Jerry Cwiklik created UIMA-3605:
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Summary: UIMA-AS gets "Wire format negotiation timeout" on
connection.open()
Key: UIMA-3605
URL: https://issues.apache.org/jira/browse/UIMA-3605
Project: UIMA
Issue Type: Bug
Components: Async Scaleout
Affects Versions: 2.4.2AS
Reporter: Jerry Cwiklik
Assignee: Jerry Cwiklik
Fix For: 2.5.0AS
It appears that under heavy network load UIMA-AS is getting "Wire format
negotiation timeout" Exception when opening a connection to a broker.
The client side of AMQ is sending a frame containing its parameters to the
server (broker). It reconciles clients params against its own and sends a reply
back to the client. The reply apparently never reaches the client causing the
timer to pop (default=10secs) and an exception is thrown.
Attempt to extend the client timeout via
wireFormat.maxInactivityDurationInitalDelay=6000 doesnt fix the problem. One
possible explanation is that either the client wire format frame is not
reaching the server or the server's reply doesnt reach the client. This may be
due to a lost TCP packet.
Since the low level amq wire negotiation doesnt offer retry, the UIMA-AS may
need implement a higher level retry around the connection open() logic. It
should capture generic JMSException and check if the associated description
indicates "wire format ..." problem. In such case, the connection should be
closed and reopened.
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