Hello everyone. Sending this mail because I have a problem with my Oozie server. Currently using Oozie 4.2 in HDP 2.6.2 in a cluster of 10 worker nodes, 2 master with HA components and multiples edges with one containing the oozie server.
I send this mail because I have a problem in the cluster. All the actions of all the workflows are stuck in PREP state. I cannot see any jobs running in Yarn, except some of them not using Oozie. The problem begun this morning, before it was working well. I checked oozie server logs and don't see anything special (no ERROR or WARN) even in DEBUG log mode. I checked the oozie admin web page to see if it was a JVM problem, but I cannot see anything special : ### Memory Information: - Heap Memory: INIT=197132288 USED=309877976 COMMITTED=832569344 MAX=3817865216 - NonHeap Memory: INIT=2555904 USED=139238472 COMMITTED=142237696 MAX=-1 - ClassLoading: Total Loaded Classes=10656 Loaded Classes=10564 Unloaded Classes=92 - Threads: Thread Count=62 Peak Thread Count=135 Total Started Threads=2708300 Deamon Threads=40 RUNNABLE=6 BLOCKED=0 WAITING=39 TIMED_WAITING=17 NEW=0 TERMINATED=0 Time of Thread Dump=Fri Oct 19 17:32:43 CEST 2018 ### As an additionnal note, my environment is kerberized and everything except Oozie works fine. I was wondering if one of you had already seen this behaviour ? Best regards. Lune