https://community.cloudera.com/t5/Support-Questions/NiFi-node-keeps-disconnecting-from-the-cluster/m-p/191887#M153966 <P>Hi Matt,</P><P>Thank you so much for getting back to me so quickly. I cannot access NiFi UI due to the nodes connected, then disconnected so quickly from the cluster. I do see the following logs in nifi node log about every minute:</P><P>2017-05-30 11:01:16,777 INFO [Write-Ahead Local State Provider Maintenance] org.wali.MinimalLockingWriteAheadLog org.wali.MinimalLockingWriteAheadLog@5af47414 checkpointed with 4 Records and 0 Swap Files in 10 milliseconds (Stop-the-world time = 2 milliseconds, Clear Edit Logs time = 3 millis), max Transaction ID 114</P><P>Is this normal or indication of a problem? </P><P>The cluster was fine yesterday when I checked and nothing is changed - I am the only person can make changes, so I know for sure.</P><P>Thanks again!</P><P>Xi</P> Tue, 30 May 2017 22:15:42 GMT xsanderson 2017-05-30T22:15:42Z