JBoss ON agent fails to discover Apache Web Server resource when httpd.conf Include directive contains a lowercase drive letter or a forward-slash (/) due to IllegalArgumentException: Path '' does not exist

Solution Unverified - Updated -

Issue

  • Auto-discover Apache
  • My apache instances don't seem to be auto-discovering

  • Agent log contains the following error:

    ERROR [ResourceDiscoveryComponent.invoker.daemon-1] (org.rhq.plugins.apache.ApacheServerDiscoveryComponent)- Discovery of Apache process [process: pid=[4218], name=[C:\Program Files\Apache Software Foundation\Apache2.2\httpd.exe], ppid=[1002]] failed with an exception.
org.rhq.plugins.apache.parser.ApacheParserException: java.lang.IllegalArgumentException: Path '' does not exist.
    at org.rhq.plugins.apache.parser.ApacheConfigReader.searchFile(ApacheConfigReader.java:60)
    at org.rhq.plugins.apache.parser.ApacheConfigReader.buildTree(ApacheConfigReader.java:19)
    at org.rhq.plugins.apache.ApacheServerDiscoveryComponent.parseRuntimeConfiguration(ApacheServerDiscoveryComponent.java:669)
    at org.rhq.plugins.apache.ApacheServerDiscoveryComponent.parseRuntimeConfiguration(ApacheServerDiscoveryComponent.java:656)
    at org.rhq.plugins.apache.ApacheServerDiscoveryComponent.discoverSingleProcess(ApacheServerDiscoveryComponent.java:326)
    at org.rhq.plugins.apache.ApacheServerDiscoveryComponent.discoverResources(ApacheServerDiscoveryComponent.java:249)
    ...
Caused by: java.lang.IllegalArgumentException: Path '' does not exist.
    at org.rhq.augeas.util.Glob.match(Glob.java:119)
    at org.rhq.plugins.apache.parser.ApacheParserImpl.getIncludeFiles(ApacheParserImpl.java:134)
    at org.rhq.plugins.apache.parser.ApacheParserImpl.addDirective(ApacheParserImpl.java:64)
    at org.rhq.plugins.apache.parser.ApacheConfigReader.searchFile(ApacheConfigReader.java:48)
    ... 14 more

Environment

  • JBoss Operations Network (ON) 3.1, 3.1.1, 3.1.2
  • Apache HTTP Server plug-in for JBoss ON
  • Apache web server (httpd) running with one or more configuration files that contain an Include directive:
    • with a file path which begins with a lowercase drive letter such as c: instead of C:
    • or with a file path which contains a a forward-slash (/) as a file separator
  • Agent and Apache web server are running on a Microsoft Windows platform

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