[jira] [Created] (IGNITE-12719) Allow users to configuring Ignite Thread Pool's Core thread count/max thread count/etc

["Sunny Chan (Jira)" <ji...@apache.org>]

Sunny Chan created IGNITE-12719:
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             Summary: Allow users to configuring Ignite Thread Pool's Core thread count/max thread count/etc
                 Key: IGNITE-12719
                 URL: https://issues.apache.org/jira/browse/IGNITE-12719
             Project: Ignite
          Issue Type: Bug
         Environment: We are running Ignite cluster on bare metal on a relatively high core count machine (4x10 cores 20 threads), and looking some of the thread pool initialization code: 

{{(IgnitionEx.java)}}

{{sysExecSvc = *new* IgniteThreadPoolExecutor(}}{{                          "sys", }}{{cfg.getIgniteInstanceName(),}}{{                cfg.getSystemThreadPoolSize(),}}{{                cfg.getSystemThreadPoolSize(),}}{{                *_DFLT_THREAD_KEEP_ALIVE_TIME_*, }}{{*new* LinkedBlockingQueue<Runnable>(),}}{{          GridIoPolicy.*_SYSTEM_POOL_*);}}

Notice that the core thread pool size is equals to the max thread pool settings, which is by default same as the number of CPU cores. And in our cases, we won’t be reusing any threads until we have enough request coming in to fill 80 threads. Also, we might want to tune the thread keep alive time to improve thread reuse.

We would like to propose to change ignite so that users can configure the core thread pool size in these Ignite thread pools.
            Reporter: Sunny Chan






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