Agent will not start - failed tojoin the existing coherence cluster node

Agent will not start - failed tojoin the existing coherence cluster node

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Article ID: KB0093881

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Updated On:

Products Versions
TIBCO BusinessEvents Enterprise Edition -
Not Applicable -

Description

Resolution:
Description:
===========
Agent will not start - failed to join the existing coherence cluster node

Environment:
===========
BusinessEvents 4.0.1
All Operating Systems

Symptoms:
=========
BusinessEvents log reports error:
java.lang.RuntimeException: java.lang.RuntimeException: Failed to start Service "Cluster" (ServiceState=SERVICE_STOPPED, STATE_JOINED)

Coherence log includes warning:
Oracle Coherence EE 3.6.0.0 &ltWarning> (thread=main, member=n/a): PreferredUnicastUdpSocket failed to set receive buffer size to 1428 packets (22.3MB); actual size is 0%, 7 packets (127KB). Consult your OS documentation regarding increasing the maximum socket buffer size. Proceeding with the actual value may cause sub-optimal performance.
Oracle Coherence EE 3.6.0.0 &ltWarning> (thread=main, member=n/a): MulticastUdpSocket failed to set send buffer size to 357 packets (511KB); actual size is 25%, 89 packets (127KB). Consult your OS documentation regarding increasing the maximum socket buffer size. Proceeding with the actual value may cause sub-optimal performance.

Oracle Coherence EE 3.6.0.0 &ltWarning> (thread=main, member=n/a): IPMonitor has been explicitly disabled, this is not a recommended practice and will result in a minimum death detection time of 300 seconds for failed machines or networks.

Cause:
======
Operating System packet-size is too small.

NOTE:
To test if large packets are working use the command:

"ping -s &ltsize> &lthost>"

example:

ping -s 123474 testserver

Resolution:
========
There are 2 options to solve the issue.

1.) Limit the packet-size used by Coherence (which may impact on performance) by adding the max packet-size to tangosol-coherence.xml (in &ltBE-HOME>/lib/ext/coherence.jar) in &ltpacket-publisher>.

example max. length 64000byte
  &ltpacket-publisher>
     &ltpacket-size>
     &ltmaximum-length>
        64000
     </maximum-length>
     &ltpreferred-length>
        1428
      </preferred-length>
  </packet-size>

2.) increase the packet-size at the OS level. You will find more information under:

"http://wiki.tangosol.com/display/COH32UG/Performance+Tuning#PerformanceTuning-OSTuning"

Issue/Introduction

Agent will not start - failed tojoin the existing coherence cluster node