Server crash and got ton of killUnidentifiedSessions

Wowza Streaming Engine
1

Hi,

I built up a wowza server for deliver some VoD via DASH and HLS protocol,

but, recently my server got the a ton of log “killUnidentifiedSessions” time after time, please see log below.

Then the server just crash, and i can not link or ping to that server, I need to reboot it manually. so that it could back to normal.

I’m not sure why I have these logs, and why it affect the server. Has anyone ever meet this situation before?

BR

blackren

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.134.161:34708 - - - 1280296.478 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/110.30.84.32:52150 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.14.12.75:42352 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.8.130.37:49437 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/110.30.84.32:52148 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.107.191:58105 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.9.94.27:42054 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.134.161:34709 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.161.6:39281 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.227.61:18361 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/36.224.223.186:50343 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/59.125.10.1:58901 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.13.197:37511 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.72.95:29751 - - - 1280296.479 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/115.82.0.111:45349 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/110.30.77.195:1076 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.104.134:36311 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/59.105.57.231:53346 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.247.9.47:56577 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/114.36.207.20:39746 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.104.134:36312 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.72.95:29750 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.12.65:37759 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.8.44.84:53409 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/1.200.34.189:50806 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/36.224.223.186:58016 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.8.44.84:53410 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.40.141:30253 - - - 1280296.48 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.247.9.47:56576 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.13.197:37512 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/122.146.39.241:44406 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.171.63:52261 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.8.130.37:49438 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.227.61:18362 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/49.217.192.72:22502 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/59.127.135.48:59469 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/114.36.207.20:34905 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/211.75.138.18:58130 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.242.166.50:62301 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/59.125.10.1:44399 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.9.94.27:42055 - - - 1280296.481 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/1.200.34.189:50671 - - - 1280296.482 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.12.65:37755 - - - 1280296.482 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:43:49 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.12.65:37757 - - - 1280296.482 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.104.134:36319 - - - 1280311.492 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.134.161:34708 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/110.30.84.32:52150 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.14.12.75:42352 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.8.130.37:49437 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/1.200.34.189:51097 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/59.125.10.1:57836 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/110.30.84.32:52148 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.161.6:39282 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.171.63:52265 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.107.191:58105 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/211.75.138.18:60477 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.9.94.27:42054 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.12.134.161:34709 - - - 1280311.493 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.161.6:39281 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.227.61:18361 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.227.61:18365 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/1.200.43.187:57914 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.8.130.37:49460 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/27.246.227.61:18364 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/39.10.72.95:29752 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2016-11-04 12:44:04 CST comment server INFO 200 - killUnidentifiedSessions: Killing unidentified session: address:/122.146.39.241:44408 - - - 1280311.494 - - - - - - - - - - - - - - - - - - - - - - - - -

2

Do you monitor CPU & Memory usage? It’s possible that you have “random” connections to your server which don’t actually contain any regular action (like pulling a VoD stream), so they are automatically killed by Wowza after a while. If there are many sessions like this, your server resources may get drained and finally the server may crash.

Either monitor resource usage trough WowzaEngineManager (Home page) or system tools (top/Task Manager) or an external NMS.

You could also improve security by tuning firewall settings or adding some wowza-based security system (such as SecureToken, etc).