DataStax Support Forums » Topic: Opscenter Config

DataStax Support Forums » Topic: Opscenter Config http://www.datastax.com/support-forums/topic/opscenter-config Software, Support, and Training for Apache Cassandra en-US Wed, 19 Jun 2013 13:13:26 +0000 http://bbpress.org/?v=1.0.3 <![CDATA[Search]]> q http://www.datastax.com/support-forums/search.php nickmbailey on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1164 Thu, 16 Feb 2012 16:50:01 +0000 nickmbailey 1164@http://www.datastax.com/support-forums/ You mean you installed the agents manually but used the agent rpm rather than the agent tarball? In that case the options passed to the 'bin/install_agent.sh' script control those settings in the conf file, similar to the 'bin/setup' script. Anonymous on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1162 Thu, 16 Feb 2012 14:58:02 +0000 Anonymous 1162@http://www.datastax.com/support-forums/ FYI - actually i used the RPM - not the tar ball nickmbailey on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1156 Wed, 15 Feb 2012 22:12:23 +0000 nickmbailey 1156@http://www.datastax.com/support-forums/ Naseer, Glad you got it working. Those conf settings are automatically created when you setup the agent by runing 'bin/setup' in the agent install directory. (Assuming you are installing the agent manually.) <a href="http://www.datastax.com/docs/opscenter/install_agents#manually-installing-agents-in-tar-installations" rel="nofollow">http://www.datastax.com/docs/opscenter/install_agents#manually-installing-agents-in-tar-installations</a> Editing them manually is also fine, however using the setup script should prevent you from needing to perform that step. Hope that helps. Nick Anonymous on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1154 Wed, 15 Feb 2012 21:45:29 +0000 Anonymous 1154@http://www.datastax.com/support-forums/ Here is what i did to fix the communication issue, hence the ask for properties. [root@lfs03x-dxc1 conf]# cat address.yaml # use_ssl: 0 stomp_interface: "10.X.3.219" local_interface: "10.X.3.221" what mattered was the stomp_interface and local_interface. After adding this and restarting the agent, it worked like a charm. I am still seeing "Error getting devices and partitions" errors and i will look @ the other thread thanks for looking into it - Naseer nickmbailey on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1149 Wed, 15 Feb 2012 19:45:04 +0000 nickmbailey 1149@http://www.datastax.com/support-forums/ Naseer, That error from the agent logs is related to the additional issue you posted about here: <a href="http://www.datastax.com/support-forums/topic/npe-error-getting-devices-and-partitions" rel="nofollow">http://www.datastax.com/support-forums/topic/npe-error-getting-devices-and-partitions</a> It should be unrelated to the problem causing communication issues between OpsCenter and the agents. Your sample from the OpsCenter log does indicate there is a problem with agent communication though. Can you give a larger sample of the logs from your agent? There will likely be errors when OpsCenter is starting up that indicate what the problem is. Even if there are not errors there may be an indication of what the problem is. Also can you verify if you are running the latest version of OpsCenter (1.4)? Anonymous on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1148 Wed, 15 Feb 2012 18:52:44 +0000 Anonymous 1148@http://www.datastax.com/support-forums/ There are four nodes in our cassandra cluster and here is the status of the services [root@lfs01 logs]# service cassandra status cassandra (pid 9911) is running... [root@lfs01x logs]# service opscenterd status opscenterd (pid 16290) is running... [root@lfs01x logs]# service opscenter-agent status opscenter-agent (pid 17089) is running... I have not modified any of the defaults, so 61620 has not been changed Here is what i see in the opscenterd logs 2012-02-15 18:44:20+0000 [] DEBUG: Average opscenterd CPU usage: 0.60%, memory usage: 27 MB 2012-02-15 18:44:21+0000 [] DEBUG: Collecting topology info for node 10.X.X.219 2012-02-15 18:44:21+0000 [] ERROR: Error collecting datacenter: No agents available to query. 2012-02-15 18:44:21+0000 [] DEBUG: Collecting topology info for node 10.X.X.222 2012-02-15 18:44:21+0000 [] ERROR: Error collecting datacenter: No agents available to query. 2012-02-15 18:44:21+0000 [] DEBUG: Collecting topology info for node 10.X.X.221 2012-02-15 18:44:21+0000 [] ERROR: Error collecting datacenter: No agents available to query. 2012-02-15 18:44:21+0000 [] DEBUG: Collecting topology info for node 10.X.X.220 2012-02-15 18:44:21+0000 [] ERROR: Error collecting datacenter: No agents available to query. 2012-02-15 18:44:21+0000 [] DEBUG: Getting nodelist over thrift and here is what i see in the agent logs INFO [StompConnection receiver] 2012-02-15 04:49:47,069 Jetty server started ERROR [pool-4-thread-3] 2012-02-15 04:49:47,532 Error getting devices and partitions java.lang.NullPointerException at java.util.regex.Matcher.getTextLength(Matcher.java:1140) at java.util.regex.Matcher.reset(Matcher.java:291) at java.util.regex.Matcher.<init>(Matcher.java:211) at java.util.regex.Pattern.matcher(Pattern.java:888) at clojure.core$re_matcher.invoke(core.clj:3760) at clojure.contrib.str_utils2$eval3698$fn__3699.invoke(str_utils2.clj:180) at clojure.lang.MultiFn.invoke(MultiFn.java:172) at opsagent.util$escape_device_name.invoke(util.clj:29) at opsagent.nodedetails$get_disk_info.invoke(nodedetails.clj:102) at opsagent.nodedetails$run_longtime_collection$fn__1180.invoke(nodedetails.clj:173) at opsagent.jmx$jmx_wrap.doInvoke(jmx.clj:93) at clojure.lang.RestFn.invoke(RestFn.java:410) at opsagent.nodedetails$run_longtime_collection.invoke(nodedetails.clj:165) at opsagent.nodedetails$start_pool$fn__1206$fn__1207.invoke(nodedetails.clj:214) at opsagent.util$error_wrap.doInvoke(util.clj:97) at clojure.lang.RestFn.invoke(RestFn.java:423) at opsagent.nodedetails$start_pool$fn__1206.invoke(nodedetails.clj:214) at clojure.lang.AFn.run(AFn.java:24) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) INFO [pool-5-thread-2] 2012-02-15 04:49:52,004 New JMX connection (127.0.0.1:7199) - naseer nickmbailey on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1147 Wed, 15 Feb 2012 17:13:48 +0000 nickmbailey 1147@http://www.datastax.com/support-forums/ Naseerm, Currently the most complete listing of the opscenter configuration options is the conf file itself and the configuration options described here: <a href="http://www.datastax.com/docs/opscenter/configure_opscenter" rel="nofollow">http://www.datastax.com/docs/opscenter/configure_opscenter</a> Generally you should not need to change any options besides these. Can you give more info on the exact error you are seeing when the agent fails to connect to OpsCenter? By default OpsCenter listens on port 61620 on all interfaces on the OpsCenter machine. Since it listens on all interfaces you should not need to change the 'incoming_interface' option. If you can provide more info on the errors you are seeing it would help us debug what the issue is here. Anonymous on "Opscenter Config" http://www.datastax.com/support-forums/topic/opscenter-config#post-1144 Wed, 15 Feb 2012 15:36:19 +0000 Anonymous 1144@http://www.datastax.com/support-forums/ Where can I get a complete listing of the properties for the opscenterd and opscenter agent. It seems there are some well known defaults, but nothing really in the documentation that i have been able to find here. Could someone please provide a pointer? My issues are centered around trying to get the opscenter agent to connect to the server and this far i have not had much success. I read "opscenter is listening in the localhost(127.0.0.1) IP with port 61620 - how to modify this?" and found that there is a property for opscenterd.conf in the agent stanza "incoming_interface". i added this and it still does not do what i expect. I am currently using the community edition so i am not sure if that is the cause. We are trying to evaluate Cassandra through a labweek project and it would be nice to showcase the Opscenter. Inputs/Suggestions welcomed