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Attempt to write vertex but there is already such a record written


Article ID: 7386


Updated On:


CA Application Performance Management Agent (APM / Wily / Introscope) INTROSCOPE


Post upgrade from APM 9.7 to 10.5.1, now seeing the following [WARN] message in the Manager of Manager (MOM)'s IntroscopeEnterpriseManager.log:

[WARN] [AppMapAsyncExecutor-4] [Manager.AppMap] Attempt to write vertex (externalId = INFERRED_SOCKET:SOCKET:abc-vip:1521:abc-vip) at 2017-05-22 17:40:56.091, but there is already such a record written at 2017-05-22 17:41:04.593


The warning message indicates that agents are trying to add data to the APM Team Center, but the data had already been written. This is usually due to a time zone conflict between the MOM, collectors and Agents.


Application Performance Management 10.x


To address this, make sure that the MOM and all Collectors are using the same time source to synchronize with (NTP). 

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