How to enable Hazelcast Debug logs in WSO2 ESB 4.9.0

In order to enable Hazelcast Debug logs browse to <ESB_HOME>/repository/conf/etc/logging-bridge.properties file.

Configure the below in logging-bridge.properties file.

com.hazelcast.level = DEBUG

In order to get the effects restart is required and you could see similar logs as below which are related to Hazelcast:

[2017-02-17 11:07:49,325]  INFO - ClusterGroupCommunicator Task [ESB_TASK] member departed [Member [172.22.217.136]:4200], rescheduling missing tasks...
[2017-02-17 11:07:49,699]  WARN - BasicMapContextQuerySupport [172.22.217.136]:4300 [wso2.esb.domain] [3.5.3] Could not get results
java.util.concurrent.ExecutionException: com.hazelcast.spi.exception.TargetNotMemberException: Not Member! target:Address[172.22.217.136]:4200, partitionId: -1, operation: com.hazelcast.map.impl.operation.QueryOperation, service: hz:impl:mapService