【详述】Cluster FE JVM Heap Stat 为啥有时断开的
【背景】
【业务影响】：
【StarRocks版本】例如：2.4.0
【集群规模】例如：3fe（1 follower）+3be（fe与be混部）
【机器信息】CPU虚拟核/内存/网卡，例如：16C/32G/万兆
【联系方式】为了在解决问题过程中能及时联系到您获取一些日志信息，请补充下您的联系方式，例如：784830900@qq.com，谢谢
连接断开时候，有fe有以下报错 [ fe.log ]
vim be.log
JAVA_OPTS="-Dlog4j2.formatMsgNoLookups=true -Xmx8192m -XX:+UseMembar -XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=7 -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSClassUnloadingEnabled -XX:-CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:SoftRefLRUPolicyMSPerMB=0 -Xloggc:$STARROCKS_HOME/log/fe.gc.log.$DATE"
2023-02-13 00:12:00,783 INFO (tablet scheduler|40) [TabletScheduler.adjustPriorities():413] adjust priority for all tablets. changed: 0, total: 0
2023-02-13 00:12:00,922 INFO (starrocks-mysql-nio I/O-4|140) [AcceptListener.handleEvent():54] Connection established. remote=/10.0.0.108:59388
2023-02-13 00:12:00,924 INFO (starrocks-mysql-nio-pool-120974|379970) [QeProcessorImpl.registerQuery():69] register query id = fb59df30-aaef-11ed-a501-0242bc8f6fbe, job: -1
2023-02-13 00:12:00,925 INFO (starrocks-mysql-nio-pool-120974|379970) [QeProcessorImpl.unregisterQuery():79] deregister query id fb59df30-aaef-11ed-a501-0242bc8f6fbe
2023-02-13 00:12:00,928 INFO (starrocks-mysql-nio-pool-120974|379970) [QeProcessorImpl.registerQuery():69] register query id = fb5a7b74-aaef-11ed-a501-0242bc8f6fbe, job: -1
2023-02-13 00:12:00,932 INFO (starrocks-mysql-nio-pool-120974|379970) [QeProcessorImpl.unregisterQuery():79] deregister query id fb5a7b74-aaef-11ed-a501-0242bc8f6fbe
2023-02-13 00:12:00,932 INFO (thrift-server-pool-940|370578) [QeProcessorImpl.reportExecStatus():118] ReportExecStatus() failed, query does not exist, fragment_instance_id=fb5a7b74-aaef-11ed-a501-0242bc8f6fbf, query_id=fb5a7b74-aaef-11ed-a501-0242bc8f6fbe,
2023-02-13 00:12:01,229 INFO (starrocks-mysql-nio-pool-120974|379970) [MysqlChannel.fetchOnePacket():159] Receive packet header failed, remote 10.0.0.108:59380 may close the channel.
2023-02-13 00:12:01,229 INFO (starrocks-mysql-nio-pool-120976|379972) [MysqlChannel.fetchOnePacket():159] Receive packet header failed, remote 10.0.0.108:59372 may close the channel.
2023-02-13 00:12:01,229 WARN (starrocks-mysql-nio-pool-120974|379970) [ReadListener.lambda$handleEvent$0():63] Exception happened in one session(com.starrocks.mysql.nio.NConnectContext@15c60fe4).
java.io.IOException: Error happened when receiving packet.
at com.starrocks.qe.ConnectProcessor.processOnce(ConnectProcessor.java:671) ~[starrocks-fe.jar:?]
at com.starrocks.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:55) ~[starrocks-fe.jar:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_251]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_251]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_251]
2023-02-13 00:12:01,229 WARN (starrocks-mysql-nio-pool-120976|379972) [ReadListener.lambda$handleEvent$0():63] Exception happened in one session(com.starrocks.mysql.nio.NConnectContext@43e40ec5).
java.io.IOException: Error happened when receiving packet.
at com.starrocks.qe.ConnectProcessor.processOnce(ConnectProcessor.java:671) ~[starrocks-fe.jar:?]
at com.starrocks.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:55) ~[starrocks-fe.jar:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_251]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_251]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_251]
2023-02-13 00:12:01,229 INFO (starrocks-mysql-nio-pool-120974|379970) [MysqlChannel.fetchOnePacket():159] Receive packet header failed, remote 10.0.0.108:59388 may close the channel.
2023-02-13 00:12:01,229 INFO (starrocks-mysql-nio-pool-120976|379972) [MysqlChannel.fetchOnePacket():159] Receive packet header failed, remote 10.0.0.108:59384 may close the channel.
2023-02-13 00:12:01,229 WARN (starrocks-mysql-nio-pool-120974|379970) [ReadListener.lambda$handleEvent$0():63] Exception happened in one session(com.starrocks.mysql.nio.NConnectContext@1b6d1b7f).
java.io.IOException: Error happened when receiving packet.