Hi,   I have 3 JNs, 2 on physical servers and the 3rd on virtual server with 6 Vcores.   Recently from time to time the vm server get out of sync for few seconds, I checked the vm resources and parmeters and nothing looks out of the rodinary, what is see in Cloudera manager metrics that the journal write bytes sometime are higher than different times   here what i see:   The active NameNode was out of sync with this JournalNode.   ===============   org.apache.hadoop.hdfs.qjournal.protocol.JournalOutOfSyncException: Can't write txid 1659311573 expecting nextTxId=1659311555 at org.apache.hadoop.hdfs.qjournal.server.Journal.checkSync(Journal.java:485) at org.apache.hadoop.hdfs.qjournal.server.Journal.journal(Journal.java:371) at org.apache.hadoop.hdfs.qjournal.server.JournalNodeRpcServer.journal(JournalNodeRpcServer.java:149) at org.apache.hadoop.hdfs.qjournal.protocolPB.QJournalProtocolServerSideTranslatorPB.journal(QJournalProtocolServerSideTranslatorPB.java:158) at org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos$QJournalProtocolService$2.callBlockingMethod(QJournalProtocolProtos.java:25421) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1060) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1707) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080)       ... View more