WowzaStreamingEngine Service exited on its own?

Tobias_Dedenroth
Wed, 13 Sep 2017 22:26:11 +0000
Wowza Streaming Engine

Hello.

Had two cases of WowzaStreamingEngine apparently exiting on its own. (Or crashing, but with exit code 0?). This has happened twice now, two weeks apart.

VM running Centos7

Wowza Streaming Engine Version 4.7.2 (build 20903)

Runs a continuous scheduled stream (StreamPublisher module) as well as VoD

Does transcoding

This is what systemctl says

$ systemctl status WowzaStreamingEngine -l
● WowzaStreamingEngine.service - WowzaStreamingEngine
   Loaded: loaded (/usr/lib/systemd/system/WowzaStreamingEngine.service; enabled; vendor preset: disabled)
   Active: active (exited) since Thu 2017-08-24 13:48:43 CEST; 19h ago
  Process: 1360 ExecStart=/usr/local/WowzaStreamingEngine/bin/systemd.sh start (code=exited, status=0/SUCCESS)
 Main PID: 1360 (code=exited, status=0/SUCCESS)

Aug 24 13:48:43 vm203.xx.xx systemd[1]: Started WowzaStreamingEngine.
Aug 24 13:48:43 vm203.xx.xx systemd[1]: Starting WowzaStreamingEngine...
Aug 24 13:48:44 vm203.xx.xx systemd.sh[1360]: /usr/local/WowzaStreamingEngine/bin/wms.sh: line 41: ${WMSPIDFILE} : ambiguous redirect
Aug 25 04:19:58 vm203.xx.xx systemd.sh[1360]: /usr/local/WowzaStreamingEngine/bin/wms.sh: line 42:  1535 Killed $_EXECJAVA $WMSTUNE_OPTS $JMXOPTIONS -Dcom.wowza.wms.runmode="service" -Dcom.wowza.wms.native.base="linux" -Dcom.wowza.wms.AppHome="$WMSAPP_HOME" -Dcom.wowza.wms.ConfigURL="$WMSCONFIG_URL" -Dcom.wowza.wms.ConfigHome="$WMSCONFIG_HOME" -cp $WMSAPP_HOME/bin/wms-bootstrap.jar com.wowza.wms.bootstrap.Bootstrap $WMSCOMMAND > /dev/null 2>&1

The Wowza error log tails warnings:

WARN	server	comment	2017-09-11	19:40:21	-	-	-	-	-	33916.255	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/return2]: Stream start time calculation is off by 6438ms from original value.  Changing stream start date from "Mon Sep 11 10:15:22 CEST 2017" to "Mon Sep 11 10:15:29 CEST 2017"
WARN	server	comment	2017-09-11	19:40:23	-	-	-	-	-	33918.2	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/liveTVfiller2_overlay]: Stream start time calculation is off by 7311ms from original value.  Changing stream start date from "Mon Sep 11 10:16:25 CEST 2017" to "Mon Sep 11 10:16:32 CEST 2017"
WARN	server	comment	2017-09-11	19:40:23	-	-	-	-	-	33918.2	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/liveTVstream2]: Stream start time calculation is off by 7307ms from original value.  Changing stream start date from "Mon Sep 11 10:16:25 CEST 2017" to "Mon Sep 11 10:16:33 CEST 2017"
WARN	server	comment	2017-09-11	19:40:24	-	-	-	-	-	33919.026	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/liveTVstream2_720p]: Stream start time calculation is off by 5080ms from original value.  Changing stream start date from "Mon Sep 11 10:16:28 CEST 2017" to "Mon Sep 11 10:16:33 CEST 2017"
WARN	server	comment	2017-09-11	19:40:34	-	-	-	-	-	33929.855	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/return2]: Stream start time calculation is off by 6401ms from original value.  Changing stream start date from "Mon Sep 11 10:15:29 CEST 2017" to "Mon Sep 11 10:15:22 CEST 2017"
WARN	server	comment	2017-09-11	19:40:38	-	-	-	-	-	33933.568	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/liveTVstream2]: Stream start time calculation is off by 5342ms from original value.  Changing stream start date from "Mon Sep 11 10:16:33 CEST 2017" to "Mon Sep 11 10:16:27 CEST 2017"
WARN	server	comment	2017-09-11	19:40:48	-	-	-	-	-	33943.345	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/liveTVfiller2_overlay]: Stream start time calculation is off by 5324ms from original value.  Changing stream start date from "Mon Sep 11 10:16:32 CEST 2017" to "Mon Sep 11 10:16:27 CEST 2017"
WARN	server	comment	2017-09-11	19:40:50	-	-	-	-	-	33945.597	-	-	-	-	-	-	-	-	MPEGDashWriterHandler.endChunk[liveTV2/_definst_/liveTVstream2_720p]: Stream start time calculation is off by 5258ms from original value.  Changing stream start date from "Mon Sep 11 10:16:33 CEST 2017" to "Mon Sep 11 10:16:28 CEST 2017"

I’m new to these warnings. They are basically for all the streams on the server. They start to appear in log file some 24 hours before the apparent crash. Went back to previous crashes and saw same warnings starting to appear the day before. Not sure if its related though.

Thanks in advance to any help or pointers

8 posts - 7 participants