rhq-users April 2013

rhq-users@lists.stg.fedorahosted.org

8 participants
7 discussions

How do you set the RHQ event source (not sourceLocation)?
by Ginny Brown 14 May '13

14 May '13

Hi folks, I am using RHQ 3.0.0 and have an RHQ agent plugin that sends events. When creating a new event, I set all the allowed parameters through the constructor: import org.rhq.core.domain.event.Event; Event(String type, String sourceLocation, Date timestamp, EventSeverity severity, String detail) Code sample (all parameters passed in are the expected types): Event event = new Event(getEventType(), source, System.currentTimeMillis(), rhqSeverity, jsonString); log.info("Event SourceLocation = " + event.getSourceLocation()); log.info("Adding Alarm event to set: " + event.toString()); agent.log output: 2013-04-01 19:30:45,076 INFO [EventManager.poller-1] (seachange.monitoring.plugins.SpotAlarms.SpotAlarmsEventPoller)- Event SourceLocation = SECQAMVL.Archive 2013-04-01 19:30:45,076 INFO [EventManager.poller-1] (seachange.monitoring.plugins.SpotAlarms.SpotAlarmsEventPoller)- Adding Alarm event to set: Event[id=0, *source=null*, timestamp=1364859045076, severity=INFO, detail={"uuid":"e810101f-146d-4ba4-a7e1-c32f022ab541","alarmDateTime":"Fri Sep 21 12:34:26 EDT 2012","alarmMessage":"Name Archive Service: restore archived file to MVL completed, ID 1385 ","eventDateTime":"Fri Sep 21 12:34:16 EDT 2012","eventCount":1,"alarmName":"Archive Service: restore archived file to MVL completed","alarmId":1385,"eventType":"Alarm","alarmSeqNumber":2719,"alarmSeverity":"Low","eventParameters":"[MV, TEST-01, SECQAMVL, 12]","eventSource":"Archive","eventComputer":"SECQAMVL","alarmCategory":"Software","eventId":1076494369,"eventSeverity":"Information","pluginSeqNum":"SECQAMVL.111","pluginResource":"SpotAlarms (gbrown-w7.schange.com)","alarmSource":"Archive","alarmType":"Trigger"}] Everything looks fine, except that the event source is null. It looks like I can get/set the sourceLocation, but only get the source. What uses the event source, and does it get set somewhere else? Is there anyway that I can set the source from the plugin? Thanks! Virginia Brown

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Mixing JMX and non-JMX
by Ken Hancock 26 Apr '13

26 Apr '13

I'm running into an issue trying to create a single plugin for a number of different java services. We'd like to stick with a single plugin as it eases deployment, but RHQ seems to have an issue with mixing JMX and non-JMX. In my rhq-plugin.xml I have a service (JMX) and a server component (custom discovery class). If I place the JMX service first in the xml, I get the following error when the plugin is uploaded to RHQ Server: 2013-04-26 20:23:49,256 WARN [org.rhq.enterprise.server.core.plugin.PluginDeploymentScanner] Does not look like [/local/rhq/rhq-server-3.0.0/plugins/myproduct-0.6.56.jar.fixme] is a plugin jar -(Cause: java.lang.NullPointerException:no xml descriptor found in jar). It will be ignored. Please fix that file or remove it. If I place the server section first followed by the JMX service, the JMX service is ignored and never discovered. Is there something in the documentation that I'm missing that this isn't supported or something invalid with the XML? Thanks, Ken <plugin name="myProduct" displayName="myProduct" version="0.6.56" package="com.test" description="myProduct " xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:xmlns:rhq-plugin" xmlns:c="urn:xmlns:rhq-configuration"> <depends plugin="JMX" useClasses="true"/> <service name="ServiceOneJMX" description="ServiceOneJMX" discovery="org.rhq.plugins.jmx.MBeanResourceDiscoveryComponent" class="org.rhq.plugins.jmx.MBeanResourceComponent" singleton="true" > <runs-inside> <parent-resource-type name="JMX Server" plugin="JMX" /> </runs-inside> <plugin-configuration> <c:simple-property name="objectName" default="com.test.monitoring:type=ServiceOneMBean" readOnly="true" /> <c:simple-property name="nameTemplate" default="ServiceOneMBean" /> </plugin-configuration> <metric property="MonitoringStartTime" displayName="Last Service Restart" displayType="summary" defaultOn="true" category="availability" dataType="trait" />  <server name="ServiceTwo" discovery="ServiceTwoDiscoveryComponent" class="ServiceTwoComponent" description="ServiceTwo" singleton="true"> <process-scan name="unix" query="process|basename|match=^java*,arg|org.apache.catalina.startup.Bootstrap|match=.*" /> <metric property="version" displayName="ServiceTwo Version" dataType="trait" displayType="summary" defaultInterval="900000"/> </server> </plugin>

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Including JVM in RHQ plugin
by Ken Hancock 17 Apr '13

17 Apr '13

I'm trying to include the JMX/JVM as a sub-server for one of my processes in my RHQ plugin under RHQ 3.0. I'm following the documentation on the wiki (https://docs.jboss.org/author/display/RHQ/AMPS-Plugin+Extensions) and also referenced the jboss-as RHQ plugin in the same source tree. I think I've got all the bases covered with one exception, but it's not working. Any ideas? 1) added JMX depends to the rhq-plugin.xml: <depends plugin="JMX" useClasses="true"/> 2) I've SKIPPED the runs-inside as I wish the plugin to be placed under the parent platform instead of burried along with all the JMX services. <runs-inside> <parent-resource-type name="JMX Server" plugin="JMX" /> </runs-inside> 3) added a JVM server to MyServer to test: <server name="MyServer" discovery="MyServerDiscoveryComponent" class="MyServerComponent" description="MyServer Service" singleton="true"> <process-scan name="unix" query="process|basename|match=^java*,arg|-classpath|match=.*/foo.bar.myserver\.jar.*" /> <metric property="version" displayName="MyServer Version" dataType="trait" displayType="summary" defaultInterval="900000"/> <server name="MyServer JVM" description="JVM" sourcePlugin="JMX" sourceType="JMX Server" discovery="org.rhq.plugins.jmx.EmbeddedJMXServerDiscoveryComponent" class="org.rhq.plugins.jmx.JMXServerComponent" singleton="true"> </server> 3) agent.log shows the following: 2013-04-16 17:46:56,109 WARN [InventoryManager.discovery-1] (rhq.core.pc.inventory.InventoryManager)- Failure during discovery for [MyServer JVM] Resources - failed after 1 ms. java.lang.Exception: Discovery component invocation failed. at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:283) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) 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:619) Caused by: java.lang.ClassCastException: foo.bar.MyServerComponent cannot be cast to org.rhq.plugins.jmx.JMXComponent at org.rhq.plugins.jmx.EmbeddedJMXServerDiscoveryComponent.discoverResources(EmbeddedJMXServerDiscoveryComponent.java:56) at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:279)

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CLI vs. RHQ-Server package version display
by Matthew Rivet 16 Apr '13

16 Apr '13

1. Problem: 2. RHQ-Server(JON 3.1.2) is not displaying the war/ear version as expected from the CLI. 3. 4. Packages are being updated using child.updateBackingContent(fileName, "2.2"); 5. In the RHQ-Server GUI under content tab interface the displayed version is 2.2 as intended. 6. 7. The problem is observed when: 8. var ins = ProxyFactory.getResource(10222); (jboss server ID) 9. var package = ins.children[0] (index of content updated with version 2.2) 10. availability: ? 11. backingContent: InstalledPackage[resource=nwna.war,packageVersion=nwna.war] 12. children: 13. contentTypes: {file=WAR File} 14. contextRoot: nwna 15. createdDate: Tue Apr 16 14:10:21 EDT 2013 16. description: a standalone web application (WAR) 17. exploded: no 18. handler: 19. id: 10341 20. measurements: [Context Root, Exploded?, Path, Virtual Hosts, Availability] 21. modifiedDate: Tue Apr 16 14:10:21 EDT 2013 22. name: nwna.war 23. operations: [stop, restart, start] 24. path: /srv/jboss/server/estoredev1/deploy/nwna.war 25. pluginConfiguration: 26. pluginConfigurationDefinition: ConfigurationDefinition[id=11449, name=Web Application (WAR)] 27. resourceType: Web Application (WAR) 28. version: 29. virtualHosts: localhost 30. 31. Version is Null and when: 32. package.backingContent 33. 34. installationDate: 1366138303505 35. packageVersion: PackageVersion[package=Package[name=nwna.war,packageType=PackageType[id=10016,name=file,resourceType=Web Application (WAR)]],version=[sha256=69b650efc0422e6daf3bddd8cb3c6f3bc3ac243af37c97ddb6e12e4316a9ec63],architecture=Architecture: name=[noarch]] 36. resource: Resource[id=10341, uuid=6e4c37b7-9fc8-4b89-b6f8-e544a7ebd027, type={JBossAS5}Web Application (WAR), key={default}nwna.war, name=nwna.war] 37. user: 38. 39. The version supplied here is the SHA default, not what is displayed in RHQ-Server GUI -- Matthew Rivet

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follow up from rhqctl demo
by John Sanda 12 Apr '13

12 Apr '13

Earlier today I did a demo of the new rhqctl script being developed in the feature/cassandra-backend branch. Here are links for some initial docs and for the demo on youtube. https://www.youtube.com/watch?feature=player_embedded&v=sFXYMHV-e04 https://docs.jboss.org/author/display/RHQ/RHQ+Control+Script I consolidated the Q&A from the demo below. Question Can I see the script without building the whole source tree? Answer The script can be found in the source tree at <RHQ_ROOT>/modules/enterprise/server/appserver/src/main/bin-resources/bin but you will need to build the source in order for it to be usable. In particular you will need to build the feature/cassandra-backend branch. Question Is it possible for the logs of the different services to become intertwined? Answer With the install command, services log to both stdout and to their own log files. rhqctl installs thing serially which should help limit the possibility of seeing log messages interwoven on stdout. rhqctl first installs the storage node and then waits until it is up and running (in the background) and read to accept client connections before proceeding. Then it moves onto the server installation. The agent is install is not started until rhqctl verifies that the server is fully initialized where you can log in via the web UI. This approach should help with reducing the chances of getting log output mixed up. Question Where are the pid files stored? Are the locations configurable? What about for RPM? Answer The default location for pid files is <RHQ_SERVER>/bin for the server, <RHQ_AGENT>/bin for the agent, and <RHQ_STORAGE>/bin for the storage node. The server and agent pid location is customizable via environment variables. Currently the storage node is installed with the cassandra script and the location of its pid can be specified with a command line option. We will implement an rhq-storage.(sh|bat) script with behavior consistent with that of the server and agent scripts. Question Are there equivalent files like rhq-server.properties or is everything integrated into one common file? Answer There is no common, shared config file. When rhqctl installs the agent, it updates the rhq.agent.server.bind-address property in agent-configuration.xml. And for the storage node, rhqctl delegates to rhq-storage-installer.sh which updates <RHQ_STORAGE>/conf/cassandra.yaml. Question How does this work on Windows? Answer The rhqctl script has not been ported to Windows yet. The bulk of the functionality is implemented in Java and is deployed as a JBoss module. This will hopefully reduce the effort in porting it to Windows as well as the overall maintenance. The rhqctl.sh script itself should be very easy to port. We need to test on Windows to see what if any changes are needed in the Java code in order to provide consistent behavior and functionality on both Linux and Windows platforms. Question Can launch preferences be stored so that only certain processes are run? e.g. I only want to run the agent + storage on a machine. Answer I have updated the server installer to generate a file marker at the end of a successful install. rhqctl looks for that marker to determine if the server has been installed. If you haven't installed the server, i.e., that marker does not exist, then rhqctl would only ever start agent + storage. Assuming you have installed the server, then there will be a config file of some sort where we could tell rhqctl to only ever start agent + storage. This not yet implemented though. Question What happens if an agent is installed already and you try installing with --storage? Answer Only the storage node will be installed. When you pass the --storage option to the install command, rhqctl will install the storage node and then if the agent is not already installed, it will install the agent. Question What happens when running "rhqctl console --server --agent"? Do the log messages interleave? Answer That is in invalid command line for the console command. rhqctl will simply display the usage/help and exit. Question Can I assume that the rhqctl script just delegates to scripts we already have? Answer yes Question Can the agent shell be broken out into a different command which connects to a running agent? Answer What is being asked is being able to "log in" to an agent similar to how you ssh into a machine. There is no functionality like that today in the agent. It is definitely possible though. I have already done a little work with piping input/output streams to get "rhqctl console --agent" working. There is still work to be done to get it functioning properly. Once that is in place though, it shouldn't be too much effort to redirect I/O from streams other than stdin/stdout. Question How would rhqctl work with storage running under a different user than the user who runs the agent? Answer This is a tough one when considering a primary objective of rhqctl is to just to the right thing while keeping things simple for the user. Suppose I run "rhqctl start" and I have perms for the storage node but not for the agent. Is the right thing here for rhqctl to start the storage node and log a warning that the user doesn't have perms? Or should rhctl just start the storage node and ignore the agent since the user doesn't have perms. I prefer logging the warning by default. When we provide some sort of launch preferences of config file for rhqctl, then the user could use that to tell rhqctl to only start the storage node so that the user won't see warning messages about the agent. Question How would you start everything at boot time? Answer I need to see what if any changes are needed so that rhqctl.sh can be used with init.d. The rhq-storage.sh script will be implemented as an init.d script just like rhq-server.sh. We use the Java service wrapper for Windows which only supports a 32 bit JVM. Stefan and I plan to investigate PowerShell to see if it offers any options that might be worth pursuing.

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Connecting to a SQL Server using Windows Authentication
by Mike Domondon 11 Apr '13

11 Apr '13

Hi, I have a plugin that connects to an SQL Database to gather information for some metrics. It works okay until I restart the plugin from the RHQ UI (Agent>Operations>New>Restart Agent>Schedule) After this, when the plugin tries to connect to the Database I get this error: java.sql.SQLException: I/O Error: SSO Failed: Native SSPI library not loaded. Check the java.library.path system property ntlmauth.dll is used by Windows Authentication and exists in the path. I did some research on the web, it seems, Windows and Java hove some issues when it comes to loading DLLs... from http://www.eclipsezone.com/articles/eclipse-vms/ <http://www.eclipsezone.com/articles/eclipse-vms/> *"It's worth bearing in mind that Windows and Java have some issues when it comes to loading DLLs. A DLL can only be loaded once in a VM and only associated with one ClassLoader. If you have two ClassLoaders, and they attempt to load the same DLL, then the second one will fail and not be able to execute any native code. As a result of this, you cannot have two bundles that attempt to load the same native code in Eclipse. This will also apply if the bundle is updated or restarted, because the old ClassLoader may retain a reference to the DLL whilst the new one starts. This is a Windows-specific problem that doesn't appear to manifest itself on other operating systems." * * * Has anyone encountered this problem before? Is there a workaround for this in RHQ? Thanks, Mike * * * *

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Fwd: [ANNOUNCE] PostgreSQL 9.2.4, 9.1.9, 9.0.13 and 8.4.17 released
by Heiko W.Rupp 04 Apr '13

04 Apr '13

FYI for all users using PostgreSQL as database Anfang der weitergeleiteten E-Mail: > Von: Dave Page <dpage(a)postgresql.org> > Betreff: [ANNOUNCE] PostgreSQL 9.2.4, 9.1.9, 9.0.13 and 8.4.17 released > Datum: 4. April 2013 15:29:55 MESZ > An: pgsql-announce <pgsql-announce(a)postgresql.org> > > The PostgreSQL Global Development Group has released a security update to all > current versions of the PostgreSQL database system, including versions 9.2.4, > 9.1.9, 9.0.13, and 8.4.17. This update fixes a high-exposure security > vulnerability in versions 9.0 and later. All users of the affected versions > are strongly urged to apply the update *immediately*. > > A major security issue fixed in this release, CVE-2013-1899 > (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1899) makes it > possible for a connection request containing a database name that begins > with "-" to be crafted that can damage or destroy files within a server's > data directory. Anyone with access to the port the PostgreSQL server listens > on can initiate this request. This issue was discovered by Mitsumasa Kondo > and Kyotaro Horiguchi of NTT Open Source Software Center. > > Two lesser security fixes are also included in this release: CVE-2013-1900 > (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1900) wherein random > numbers generated by contrib/pgcrypto functions may be easy for another > database user to guess, and CVE-2013-1901 > (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1901) which > mistakenly allows an unprivileged user to run commands that could interfere > with in-progress backups. Finally, this release fixes two security issues > with the graphical installers for Linux and Mac OS X: insecure passing of > superuser passwords to a script, CVE-2013-1903 > (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1903) and the use of > predictable filenames in /tmp CVE-2013-1902 > (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1902) Marko Kreen, > Noah Misch and Stefan Kaltenbrunner reported these issues, respectively. > > We are grateful for each developer's efforts in making PostgreSQL more secure. > > This release also corrects several errors in management of GiST indexes. After > installing this update, it is advisable to REINDEX any GiST indexes that meet > one or more of the conditions described below. > > This update release also contains fixes for many minor issues discovered and > patched by the PostgreSQL community in the last two months, including: > > * Fix GiST indexes to not use "fuzzy" geometric comparisons for box, polygon, > circle, and point columns > * Fix bugs in contrib/btree_gist for GiST indexes on text, bytea, bit, and > numeric columns > * Fix bugs in page splitting code for multi-column GiST indexes > * Fix buffer leak in WAL replay causing "incorrect local pin count" errors > * Ensure crash recovery before entering archive recovery during unclean > shutdown when recovery.conf is present > * Avoid deleting not-yet-archived WAL files during crash recovery > * Fix race condition in DELETE RETURNING > * Fix possible planner crash after adding columns to a view depending on > another view > * Eliminate memory leaks in PL/Perl's spi_prepare() function > * Fix pg_dumpall to handle database names containing "=" correctly > * Avoid crash in pg_dump when an incorrect connection string is given > * Ignore invalid indexes in pg_dump and pg_upgrade > * Include only the current server version's subdirectory when backing up a > tablespace with pg_basebackup > * Add a server version check in pg_basebackup and pg_receivexlog > * Fix contrib/dblink to handle inconsistent settings of DateStyle or > IntervalStyle safely > * Fix contrib/pg_trgm's similarity() function to return zero for trigram-less > strings > * Enable building PostgreSQL with Microsoft Visual Studio 2012 > * Update time zone data files for DST law changes in Chile, Haiti, Morocco, > Paraguay, and some Russian areas > > As always, update releases only require installation of packages and a > database system restart. You do not need to dump/restore or use pg_upgrade > for this update release. Users who have skipped multiple update releases may > need to perform additional, post-update steps; see the Release Notes for > details. > > Links: > > * Download: http://postgresql.org/download > * Release Notes: http://www.postgresql.org/docs/current/static/release.html > * Release FAQ: http://www.postgresql.org/support/security/faq/2013-04-04/ > > -- > Dave Page > PostgreSQL Core Team > http://www.postgresql.org/ > > > -- > Sent via pgsql-announce mailing list (pgsql-announce(a)postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-announce -- Reg. Adresse: Red Hat GmbH, Technopark II, Haus C, Werner-von-Siemens-Ring 14, D-85630 Grasbrunn Handelsregister: Amtsgericht München HRB 153243 Geschaeftsführer: Mark Hegarty, Charlie Peters, Michael Cunningham, Charles Cachera

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rhq-users April 2013