When can the workflow handler go down?

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1

Hi , at times see that my Workflow task handler goes down silently and is see all workflows and querys get hung, i also see “consistent query buffer is full, cannot accept new consistent queries” in my logs.

I initally thought it could be something after i upgraded to 1.0.5 client and 1.6.3 server,but it appears that that might not be the case.

Sad part is i dont see any thing much in the logs (my java sdk /workflow worker impl logs) inspite of having io.temoporal and io.grpc in TRACE.

Any idea how i can root cause this?

“One of suspesion is, possibly a an activity is attempting to signal to non existing or a terminated workflow and could be causing the workflow handler to come down”.

can that happen?

what should i look in client (java sdk logs) and temporal log to understand whats going on.

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2

i had to couple of more thread for the thread1 and thread2

3

According to thread1 the workflow didn’t go down silently. It failed with NullPointerException. Try fixing it to unblock the workflow execution.

5

This is same as Timeout issues after upgrading to 1.6.3 temporal and 1.0.5 java client - Temporal, this thread can be closed.

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