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[perfsonar-user] CentOS 7 ISO install doesn't work, Internal Server 500 error


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  • From: "Sturm, Daniel" <>
  • To: <>
  • Subject: [perfsonar-user] CentOS 7 ISO install doesn't work, Internal Server 500 error
  • Date: Fri, 17 Mar 2017 14:00:55 -0700
  • Ironport-phdr: 9a23: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
Hey, I just installed the perfsonar 4.0 release candidate ISO for centos 7, and I've been running into some trouble with Cassandra and Esmond. I searched around and made some changes, most notably from this exchange: http://perfsonar-user.internet2.narkive.com/NH9FTXDl/perfsonar-4-0-rc2-cassandra-logs-have-fatal-errors

Cassandra appears to be running now, but Esmond can't connect. We can telnet to its port at localhost 9160 without errors. I can provide full logs, but it mostly looks like this:

"2017-03-16 13:01:12,783 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:01:12,786 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:04:18,248 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:04:18,254 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:20:34,898 [INFO] /usr/lib/esmond/esmond/cassandra.py: Checking/creating column families
2017-03-16 13:20:34,904 [INFO] /usr/lib/esmond/esmond/cassandra.py: Schema check done
2017-03-16 13:20:34,918 [INFO] /usr/lib/esmond/esmond/cassandra.py: Connected to ['localhost:9160']
2017-03-16 13:20:36,852 [INFO] /usr/lib/esmond/esmond/cassandra.py: Checking/creating column families
2017-03-16 13:20:36,855 [INFO] /usr/lib/esmond/esmond/cassandra.py: Schema check done
2017-03-16 13:20:36,860 [INFO] /usr/lib/esmond/esmond/cassandra.py: Connected to ['localhost:9160']
2017-03-16 13:33:12,742 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:33:12,758 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:33:24,840 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:33:24,848 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running.
2017-03-16 13:34:11,929 [ERROR] /usr/lib/esmond/esmond/api/perfsonar/api_v2.py: Unable to connect to cassandra. Please verify cassandra is running."


"Unable to connect to cassandra" continues ad nauseum. Cassandra appears to start up just fine, and systemctl reads like this:

[root@igswmcwmlt00010a scripts]# systemctl status cassandra.service
● cassandra.service - SYSV: Starts and stops Cassandra
   Loaded: loaded (/etc/rc.d/init.d/cassandra; bad; vendor preset: disabled)
   Active: active (exited) since Fri 2017-03-17 13:02:56 PDT; 53min ago
     Docs: man:systemd-sysv-generator(8)
  Process: 3292 ExecStop=/etc/rc.d/init.d/cassandra stop (code=exited, status=1/FAILURE)
  Process: 3367 ExecStart=/etc/rc.d/init.d/cassandra start (code=exited, status=0/SUCCESS)

Mar 17 13:02:56 igswmcwmlt00010a.wr.usgs.gov systemd[1]: cassandra.service: control process exited, code=exit...s=1
Mar 17 13:02:56 igswmcwmlt00010a.wr.usgs.gov systemd[1]: Unit cassandra.service entered failed state.
Mar 17 13:02:56 igswmcwmlt00010a.wr.usgs.gov systemd[1]: cassandra.service failed.
Mar 17 13:02:56 igswmcwmlt00010a.wr.usgs.gov systemd[1]: Starting SYSV: Starts and stops Cassandra...
Mar 17 13:02:56 igswmcwmlt00010a.wr.usgs.gov su[3376]: (to cassandra) root on none
Mar 17 13:02:56 igswmcwmlt00010a.wr.usgs.gov cassandra[3367]: Starting Cassandra: OK
Mar 17 13:02:56 igswmcwmlt00010a.wr.usgs.gov systemd[1]: Started SYSV: Starts and stops Cassandra.
Hint: Some lines were ellipsized, use -l to show in full.


Has anyone run into a similar problem who knows how to fix this? I can't even check the changes to my testpoints with this issue in the way.

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