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The JS7 Agent executes workflows, stores information about execution res= ults and order state transitions in its journal and passes results to the C= ontroller. The outage of an Agent prevents the execution of workflows.
Troubleshooting starts from the fact that users reproduce and locate a p= roblem in order to better know the nature of the problem:
agent.log
=
and watchdog.log
, see JS7 - Log Files and Locations.
WARN<=
/code> and ERROR
in a log file.
2021-10-10T09:53:04,939 WARN js7.base.session.SessionApi - HttpAg=
entApi(https://apmacwin:4345): HTTP 401 Unaut=
horized: POST https://apmacwi=
n:4344/controller/api/session =3D> InvalidLogin: Login: un=
known user or invalid password
zcat
command can be used to directly access c=
ompressed log files.agent.log
file not provide sufficient informati=
on to reproduce a problem then users should consider increasing the log lev=
el, as described in the JS7 - Log Levels and Debug Options article.In some situations, for example if computer memory is not sufficient for= the heap size of the Agent's Java Virtual Machine, the outage of an Agent = instance can be handled by restarting the instance. However, problems indic= ating insufficient resources typically require better sizing of resources.<= /p>
If the problem is related to server resources and if operation of the Ag=
ent cannot be continued on the same server then relocation of the Agent ins=
tance can be a last means to fight an outage. Relocation includes copying/m=
oving the Agent instance's JS7_AGENT_DATA/state
directory=
to an Agent instance on a new server. This directory holds the Agent insta=
nce's journal. To relocate an Agent instance, the journal files can be copi=
ed to the new Agent instance. Re=
fer to the JS7 - Ho=
w to relocate an Agent