rhq-users March 2013

rhq-users@lists.stg.fedorahosted.org

7 participants
7 discussions

A Maven plugin for RHQ agent plugin development
by Thomas Segismont 25 Mar '13

25 Mar '13

Hi all, If you ever wrote an RHQ agent plugin as a Maven project you probably had to use different Maven plugins (dependency plugin, assembly plugin, ant plugin) to get this done. I have started a prototype for an RHQ agent plugin custom packaging and wrote about this in the project wiki [1]. The goal is to get shorter and easier to read/write POM files. Anything that makes plugin development simpler will encourage plugin development I hope. Please do not hesitate to give your feedback. Thanks and regards, Thomas [1] https://docs.jboss.org/author/display/RHQ/Maven+plugin+for+RHQ+agent+plugin

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Testing PIQL queries
by Ken Hancock 20 Mar '13

20 Mar '13

I have a java service that has an extremely large classpath list to the point that even ps with "ww" arguments shows it clipped. I tried using a process-scan with the pidfile and that didn't work, nor is my basename query working. Is there a simple way to test these queries out on a system without deploying my plugin multiple times?

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Accessing plugin-configuration changed through the GUI
by Mike Domondon 20 Mar '13

20 Mar '13

Hi, I have a server with a plugin-configuration defined in the plugin descriptor. <plugin-configuration> <c:simple-property name="key" type = "string" required = "true"/> </plugin-configuration> In the server's discovery component, I want to access the plug-in configuration that was changed through the UI and not the default plugin-configuration in the plugin descriptor. This is what I tried in the discoverResources method: List<Configuration> configs = context.getPluginConfigurations(); for (Configuration config : configs ) { Uniquekey = config .getSimpleValue("key", null); if (Uniquekey == null) throw new InvalidPluginConfigurationException("No Key provided"); } What I get is that UniqueKey is not null. But it is blank. getPluginConfigurations is deprecated, could it be the reason why my code does not work? . Thanks, Mike

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Installation of RHQ 4.6.0 Binaries on Windows
by fred.holahan＠opensourceadvisory.com 15 Mar '13

15 Mar '13

Hi, I downloaded the RHQ 4.6.0 zip from here and am attempting to extract its contents to the Windows 8 file system. I'm receiving strange file errors. I thought it was a permissions problem, so I made gave 7zip Administrator privs. That did not fix the problem. Is the 4.6.0 binary distro for Linux only? Thanks for any suggestions you can offer. -Fred

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Accessing parent plugin configuration
by Mike Domondon 13 Mar '13

13 Mar '13

I have a plugin with a Server that has a child service. The Server has a plugin-configuration. Is it possible to access the plugin-configuration of the server through the plugin component and discovery class of the child service? How do I do this? Thanks for your time! =) Thanks, Mike

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Netservices plugin enhancements
by Thomas Segismont 05 Mar '13

05 Mar '13

Hi, I've wrote a blog post on the recent Net Services plugin enhancements[1]: * some HTTP service features were not fully implemented; * the new Port service lets you monitor a remote port for TCP connection * the plugin now has tests and integration tests for all its services Cheers Thomas [1] http://tsegismont.blogspot.fr/2013/03/rhq-net-services-plugin-enhancements.…

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Provisioning - gathering requirements
by Lukas Krejci 04 Mar '13

04 Mar '13

Hi, We've been thinking recently about how to simplify the situation for the users when dealing with how RHQ manages content. Currently, users can use either the bundle subsystem to deploy/undeploy stuff or there is some support for doing it using our content subsystem. We've realized that the content subsystem is very rigid and provides some (overly) strong guarantees when it comes to checking the type of the data deployable to certain locations. It is also able to link the resources in RHQ's inventory with the content deployed "underneath" them. Using it is very cumbersome and errorprone and users (as well as devs) generally had difficulties getting anything useful out of it (mainly due to very over- engineered server-side concepts like content source). On the other hand, the bundle subsystem is designed to be free-form, scripted deployment tool that provides the users with ant-based "recipes" for deploying content giving them full power (and responsibility) over what and how is deployed from a bundle. This has become quite popular amongst our userbase (as far as we are aware of) exactly because of that power. The drawbacks of the bundle subsystem are its inability to directly link the resources in the inventory with the content that has been deployed through bundles and also its coupling to the filesystem - it is not possible to deploy using some kind of API from a bundle. Also, one cannot easily "just drop stuff somewhere" for it to be deployed without writing some kind of recipe for it first. We've been thinking about various ways of unifying these two approaches (each of which has its pros and cons) but couldn't find a way that would be easy enough, provided enough value and was backwards compatible (if you are really interested, you can read through our wiki page that tracks the discussions we've had: https://docs.jboss.org/author/display/RHQ/Bundles+vs. +Content+-+On+Its+Head). So far we identified what RHQ does *NOT* want to be: * a fullblown provisioning system akin to Linux package management solutions We'd rather be a complement or a much simpler alternative way of deliverying content that would concentrate on deploying applications into "containers" - our main usecase obviously being webapps to appservers. We'd like our new "provisioning" system to (in decreasing priority): * create ties between deployed content and RHQ's inventory as much as possible (this might be difficult in the scripted scenarios), * provide scriptability similarly (if not in the same way) as bundle subsystem does today, * provide "drop stuff" type of functionality so that users don't have to write recipes for "well-known" types of content, * provide ability to "discover" content present on the already known resources. What do you consider important? Do we miss usecases you'd like us to implement? Would you change the priorities of the above? Thanks, Lukas

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rhq-users March 2013