Anjil Reddy Chinnapatlolla created FINERACT-1934:
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Summary: Too many threads of type "SimpleAsyncTaskExecutor-"
accumulating
Key: FINERACT-1934
URL: https://issues.apache.org/jira/browse/FINERACT-1934
Project: Apache Fineract
Issue Type: Bug
Components: Performance
Affects Versions: 1.8.4
Reporter: Anjil Reddy Chinnapatlolla
I got to observe too many threads of type “{*}SimpleAsyncTaskExecutor-{*}”
getting accumulated while running Fineract with increased concurrent users
(ranging from 200-1000 users at a time performing saving deposits across 5 pod
replication).
When deployed in a Kubernetes environment with read/write pods separated, the
accumulation of threads within the pods is causing the resource exhaustion and
JVM freeze.
>From a quick java thread-dump walk-through, my understanding is that these
>threads are created in the process of business event notification post write
>commands (like savings deposit) and is required by design. Raising this
>observation to see if it can be optimized to reduce the number of threads
>getting generated per transaction.
>From one of the thread dumps of a pod, we observed 168 threads of type
>“{*}https-jsse-nio2-8443-exec-{*}“ and “{*}SimpleAsyncTaskExecutor-{*}“ were
>320.
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