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UI hangs periodically #59

bhouglum ·

System runs well for a while and then the UI hangs. I believe it is when there is a task that runs longer than 12hrs.
Console.log contains multiple failures:

2021-06-02 09:10:48,432 WARN com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@27983d8d -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
jvm 1 | org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

2021-06-02 09:10:48,433 WARN Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@32626e2b is interrupting all Threads waiting on a resource to check out. Will try again in response to new client requests.

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robinshen ADMIN ·

How many database connections you've configured in "conf/"? Also please get me a stack trace by running "/path/to/jdk/bin/jstack " while UI is hanging.