rhq-users October 2010

rhq-users@lists.stg.fedorahosted.org

8 participants
11 discussions

Unable to delete a resource
by Al Amyot 27 Oct '10

27 Oct '10

On the platform Inventory list, there are no checkboxes before each resource which makes it impossible to use the Delete button. Is this the correct way to delete a resource? See the attached screen shot. This was rendered using Firefox 3.6.10 and also appears this way on IE7 (IE7 does not properly display scroll bars and so is unusable for RHQ) Al Amyot | Consultant Sierra Systems (eHealth): 204-926-4257 (T): 204-942-2575 (F): 204-942-2047 444 St. Mary Avenue, Suite 1050 Winnipeg, MB R3C 3T1 Management Consulting | System Integration | Managed Services website: www.SierraSystems.com <http://www.sierrasystems.com/> This email and/or any documents in this transmission is intended for the addressee(s) only and may contain legally privileged or confidential information. Any unauthorized use, disclosure, distribution, copying or dissemination is strictly prohibited. If you receive this transmission in error, please notify the sender immediately and return the original. Ce courriel et tout document dans cette transmission est destiné à la personne ou aux personnes à qui il est adressé. Il peut contenir des informations privilégiées ou confidentielles. Toute utilisation, divulgation, distribution, copie, ou diffusion non autorisée est strictement défendue. Si vous n'êtes pas le destinataire de ce message, veuillez en informer l'expéditeur immédiatement et lui remettre l'original.

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deploying a custom plugin in HA environment
by Bala Nair 26 Oct '10

26 Oct '10

Maybe this is a stupid question but when I'm deploying a new custom plugin in an HA environment do I have to deploy it to each server in the HA cloud? I couldn't find anything about this scenario on the wiki, except the note that the rhq servers have no contact with each other except through the db. Bala Nair SeaChange International

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Writing plugins video from the JUDCon Berlin 2010 session available
by Heiko W.Rupp 25 Oct '10

25 Oct '10

Hi, I've made a recording of my JUDCon Berlin 2010 session available on the RHQ wiki page at http://rhq-project.org/display/RHQ/Videos Heiko -- Reg. Adresse: Red Hat GmbH, Otto-Hahn-Strasse 20, 85609 Dornach bei München Handelsregister: Amtsgericht München HRB 153243 Geschaeftsführer: Brendan Lane, Charlie Peters, Michael Cunningham, Charles Cachera

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Funny "ghost menu" in 4
by Heiko W.Rupp 25 Oct '10

25 Oct '10

I sometimes see And when I click on it, a list of stuff pulls down. But I can not reproduce getting this menu on purpose. Heiko -- Reg. Adresse: Red Hat GmbH, Otto-Hahn-Strasse 20, 85609 Dornach bei München Handelsregister: Amtsgericht München HRB 153243 Geschaeftsführer: Brendan Lane, Charlie Peters, Michael Cunningham, Charles Cachera

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Availability collection interval
by Cesar William 21 Oct '10

21 Oct '10

How can I change the "Availability" collection interval for a service? I can change other metrics in "MONITOR > SCHEDULES" but I can't find the Availability to change the collection interval. -- Att, Cesar William Alvarenga

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graphing Script plugin metrics
by Al Amyot 20 Oct '10

20 Oct '10

I have customized the Script plugin by adding several metrics. These successfully display on the Monitor tab under Tables but do not display under Graphs. Shouldn't all metrics enabled on the Monitor tab under Schedules also be graphed? Is this ability determined by the metrics attributes? Below is an example of the metric definition: <metric property="{-i MB01 -m read}|" dataType="measurement" displayName="MB01 Messages read" description="Number of messages read by MB01 msgreader" defaultOn="true" units="none" defaultInterval="300000" displayType="summary" category="throughput" measurementType="trendsup" /> Al Amyot | Consultant Sierra Systems (eHealth): 204-926-4257 (T): 204-942-2575 (F): 204-942-2047 444 St. Mary Avenue, Suite 1050 Winnipeg, MB R3C 3T1 Management Consulting | System Integration | Managed Services website: www.SierraSystems.com <http://www.sierrasystems.com/> This email and/or any documents in this transmission is intended for the addressee(s) only and may contain legally privileged or confidential information. Any unauthorized use, disclosure, distribution, copying or dissemination is strictly prohibited. If you receive this transmission in error, please notify the sender immediately and return the original. Ce courriel et tout document dans cette transmission est destiné à la personne ou aux personnes à qui il est adressé. Il peut contenir des informations privilégiées ou confidentielles. Toute utilisation, divulgation, distribution, copie, ou diffusion non autorisée est strictement défendue. Si vous n'êtes pas le destinataire de ce message, veuillez en informer l'expéditeur immédiatement et lui remettre l'original.

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MySQL Connections
by JAVIER MANSO PEÑA 18 Oct '10

18 Oct '10

Hi I'm having a problem with RHQ and MySQL plugin. As RHQ monitors MySQL, the number of connection in MySQL grow. It happens until MySQL max connections is reached. Then MySQL doesn't accept more connection. How can I avoid this growth of connections in MySQL? Best regards, Javier

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Fwd: can't get ha failover to work
by John Mazzitelli 15 Oct '10

15 Oct '10

[I'm sending this to the rhq-users list - it is more appropriate there - the rhq-devel list is for developers of the RHQ codebase] > First why is it trying to fail over to localhost instead of server B > and second why the connection refused error? There is no rhq server > on this agent box to refuse a connection. I suspect that this is because your server B might not have its public endpoint declared correctly. Go to Administration>Servers and look at Server B - what is its public endpoint address? Make sure it is correct. On your agents, what do the failover lists look like? I suspect you will see "127.0.0.1" in the failover list, as opposed to the server B host/IP you expect. Read this as background: http://rhq-project.org/display/JOPR2/High+Availability#HighAvailability-Ser… http://rhq-project.org/display/JOPR2/High+Availability#HighAvailability-Fai… -------- Original Message -------- Subject: can't get ha failover to work Date: Fri, 15 Oct 2010 12:39:25 -0400 From: Bala Nair <bnairtm(a)comcast.net> Reply-To: rhq-devel(a)lists.fedorahosted.org To: rhq-devel(a)lists.fedorahosted.org We're trying to set up an rhq HA cloud with 2 servers and 4 agents and we're having a problem getting the agents to failover to the second server. When we first start up everything all the agents are connected to one server (call it server A) with the other server (server B) not connected to any agents. The failover list on the agent side showing 2 entries (server B and server A in that order). We go to the HA servers page in the gui and see both servers are in NORMAL mode with server A having an agent count of 4 and server B a count of 0. There are no affinity groups. We then set server A to MAINTENANCE mode and wait. I expect the 4 agents connected to server A to failover to server B and to see that in the servers list, but nothing changes. Checking the agent logs I find the following errors: 2010-10-15 11:17:46,653 INFO [RHQ Server Polling Thread] (enterprise.communications.command.client.JBossRemotingRemoteCommunicator)- {JBossRemotingRemoteCommunicator.changing-endpoint}Communicator is changing endpoint from [InvokerLocator [servlet://mmc-int:7080/jboss-remoting-servlet-invoker/ServerInvokerServlet]] to [InvokerLocator [servlet://127.0.0.1/jboss-remoting-servlet-invoker/ServerInvokerServlet]] 2010-10-15 11:17:46,654 WARN [RHQ Server Polling Thread] (org.rhq.enterprise.agent.AgentMain)- {AgentMain.failover-failed}Failed to failover to another server. Cause: org.jboss.remoting.CannotConnectException: Can not connect http client invoker. Connection refused. 2010-10-15 11:17:46,658 INFO [RHQ Server Polling Thread] (enterprise.communications.command.client.JBossRemotingRemoteCommunicator)- {JBossRemotingRemoteCommunicator.changing-endpoint}Communicator is changing endpoint from [InvokerLocator [servlet://127.0.0.1/jboss-remoting-servlet-invoker/ServerInvokerServlet]] to [InvokerLocator [servlet://mmc-int:7080/jboss-remoting-servlet-invoker/ServerInvokerServlet]] 2010-10-15 11:17:46,661 WARN [RHQ Server Polling Thread] (org.rhq.enterprise.agent.AgentMain)- {AgentMain.failover-failed}Failed to failover to another server. Cause: org.rhq.enterprise.communications.util.NotProcessedException 2010-10-15 11:17:46,663 WARN [RHQ Server Polling Thread] (org.rhq.enterprise.agent.FailoverFailureCallback)- {AgentMain.too-many-failover-attempts}Too many failover attempts have been made [2]. Exception that triggered the failover: [org.rhq.enterprise.communications.util.NotProcessedException] 2010-10-15 11:17:46,663 ERROR [RHQ Server Polling Thread] (enterprise.communications.command.client.JBossRemotingRemoteCommunicator)- {JBossRemotingRemoteCommunicator.init-callback-failed}The initialize callback has failed. It will be tried again. Cause: org.rhq.enterprise.communications.util.NotProcessedException:null. Cause: org.rhq.enterprise.communications.util.NotProcessedException In this case mmc-int is server A. I can understand the second series of errors where it tries to fail back to mmc-int and fails because mmc-int is in maintenance mode. I don't understand the initial failure though. First why is it trying to fail over to localhost instead of server B and second why the connection refused error? There is no rhq server on this agent box to refuse a connection. I have looked through all the agent and server configuration properties and I just don't see how the localhost address is getting set in this case. Any help would be appreciated. Thanks. Bala Nair SeaChange International _______________________________________________ rhq-devel mailing list rhq-devel(a)lists.fedorahosted.org https://fedorahosted.org/mailman/listinfo/rhq-devel

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Reusing the script plugin
by Al Amyot 12 Oct '10

12 Oct '10

I created a customized version of the Script plugin which includes three metrics (each of which passes a different command line option to the script). I want to add multiple resources using this plugin (executing the same script) but each with different environment variables to modify the behaviour. However I get the following error: A Script Server with the specified connection properties was already in inventory. Can can I create a reusable script plugin like this but apply it to different resources? It seems that I would have to clone the plugin jar file multiple jars to work around this error (or at the very least change the executable each time) See attached rhq-plugin.xml Al Amyot | Consultant Sierra Systems (eHealth): 204-926-4257 (T): 204-942-2575 (F): 204-942-2047 444 St. Mary Avenue, Suite 1050 Winnipeg, MB R3C 3T1 Management Consulting | System Integration | Managed Services website: www.SierraSystems.com <http://www.sierrasystems.com/> This email and/or any documents in this transmission is intended for the addressee(s) only and may contain legally privileged or confidential information. Any unauthorized use, disclosure, distribution, copying or dissemination is strictly prohibited. If you receive this transmission in error, please notify the sender immediately and return the original. Ce courriel et tout document dans cette transmission est destiné à la personne ou aux personnes à qui il est adressé. Il peut contenir des informations privilégiées ou confidentielles. Toute utilisation, divulgation, distribution, copie, ou diffusion non autorisée est strictement défendue. Si vous n'êtes pas le destinataire de ce message, veuillez en informer l'expéditeur immédiatement et lui remettre l'original.

2 4

kpi dashboard
by Cesar William 06 Oct '10

06 Oct '10

Hi all, is there a plugin for a KPI (Key Performance Indicator) in Jopr/RHQ? Att, Cesar William

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rhq-users October 2010