We have seen the following happen a couple of time recently during periods of
high load/gc pauses in our system:
2020-03-02 11:38:56,803 ERROR STDIO
[tcp-disco-msg-worker-#2%ignite_wingman_2931%] {} Mar 02, 2020 11:38:56 AM
org.apache.ignite.logger.java.JavaLogger error
SEVERE: Blocked system-critical thread has been detected. This can lead to
cluster-wide undefined behaviour [threadName=grid-nio-worker-tcp-comm-3,
blockedFor=12s]
I know it says this leads to undefined behavior, but I am wondering what this
thread is for/what the effect of it being blocked is. Also, is this timeout
something that is configurable?
