Hi All,   Is there any impact of CVE-2021-44228 - log4j Arbitrary RCE on CDH 5.x and 6.x??   Regards, Hanu ... View more

can any one suggest how to troubleshoot this issue?? ... View more

Could you please help me on this issue?? ... View more

FAILOVERCONTROLLER logfile of Standby NN(previous ACTIVE NN):   2021-10-13 04:35:26,628 WARN org.apache.hadoop.ha.HealthMonitor: Transport-level exception trying to monitor health of NameNode at passive-mns-vm1/10.4.185.90:8022: java.net.ConnectException: Connection refused Call From passive-mns-vm1/10.4.185.90 to passive-mns-vm1:8022 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused 2021-10-13 04:35:28,628 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: passive-mns-vm1/10.4.185.90:8022. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=1, sleepTime=1000 MILLISECONDS) 2021-10-13 04:35:28,629 WARN org.apache.hadoop.ha.HealthMonitor: Transport-level exception trying to monitor health of NameNode at passive-mns-vm1/10.4.185.90:8022: java.net.ConnectException: Connection refused Call From passive-mns-vm1/10.4.185.90 to passive-mns-vm1:8022 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused ... View more

Standby NN logfile:   at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:322) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Caused by: java.lang.UnsupportedOperationException: CollectionUsage threshold is not supported at sun.management.MemoryPoolImpl.getCollectionUsageThreshold(MemoryPoolImpl.java:202) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) . . . at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) Caused by: java.lang.UnsupportedOperationException: Usage threshold is not supported at sun.management.MemoryPoolImpl.getUsageThresholdCount(MemoryPoolImpl.java:189) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ... View more