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From nigro_franz <>
Subject Re: [ARTEMIS] ActiveMQScheduledLeaseLock warning is written periodically in broker log since 2.4.0
Date Tue, 16 Jan 2018 14:16:38 GMT

when is used a JDBC Journal the JDBC Node Manager will use an optimistic
Lock with timeout (similar to the ActiveMQ's
to maintain the ownership of the Journal.
This lock periodically renew the lease on the Journal and warn if the renew
operation will take more than what is expected (4000 ms I suppose) to be
The reasons could be very different including DBMS latencies/heavy GC
pauses/too many threads vs CPU cores.
More infos are here: on
dbc-lock-renew-period field.


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