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Problem
Users may observe the following MySQL error:
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If the connection to the MySQL database was idle for some time without any activity, then MySQL might close the connection without signaling this fact to the JOC Cockpit.
Analysis
- If a MySQL DBMS is being used then the MySQL
wait_timeout
setting that rules the max. lifetime of idle connections should be checked and adjusted if required. - The default
wait_timeout
for MySQL might be too short. The JOC Cockpit assumes a connection to be idle for up to 30 minutes before refreshing the connection.
Solution
If a MySQL DBMS is being used by the JobScheduler, then the MySQL wait_timeout
setting that rules the max. lifetime of idle connections should be checked and if necessary extended.
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Overview
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