Bug 855926
| Summary: | Apache plug-in throws NoClassDefFoundError or UnsatisfiedLinkError when Augeas is enabled but library can not be read | |||
|---|---|---|---|---|
| Product: | [JBoss] JBoss Operations Network | Reporter: | Larry O'Leary <loleary> | |
| Component: | Plugin -- Apache | Assignee: | Lukas Krejci <lkrejci> | |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Mike Foley <mfoley> | |
| Severity: | medium | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | JON 3.1.0 | CC: | lkrejci, myarboro, skondkar, tsegismo | |
| Target Milestone: | DR01 | |||
| Target Release: | JON 3.2.1 | |||
| Hardware: | All | |||
| OS: | All | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | Bug Fix | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 855927 1058474 (view as bug list) | Environment: | ||
| Last Closed: | 2014-05-08 17:43:36 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | 855927, 1058474 | |||
| Bug Blocks: | ||||
In master by means of BZ 1058474 Cherry-picked over to release/jon3.2.x
commit 80ab9efe5868ec5e12797a48166bbb3f251a8483
Author: Lukas Krejci <lkrejci>
Date: Mon Jan 27 22:12:25 2014 +0100
Bug 855926 - Apache plug-in throws NoClassDefFoundError or UnsatisfiedLinkError when Augeas is enabled but library can not be read
Log meaningful messages on failure to find/link Augeas lib
Catch NoClassDefFoundError and UnsatisfiedLinkError and report them
appropriately when checking for presence of Augeas in Apache plugin.
Also emit slightly more direct message if we do not support Augeas for
given version of Apache.
(cherry picked from commit f7f0011072dd56f1a081aa24351966656ff94f83)
Signed-off-by: Thomas Segismont <tsegismo>
Moving to ON_QA as available for testing in the following brew build: https://brewweb.devel.redhat.com//buildinfo?buildID=336752 Note: the installed version is still JON 3.2.0.GA by design and this represents part of the payload for JON 3.2.1 also known as cumulative patch 1 for 3.2.0.GA. How this will be delivered to customers is still being discussed. Verified on JON 3.2.1 DR01 build (Build Number :c758688:4c03150) Followed the steps. Agent log has below message: 2014-02-20 14:51:01,294 ERROR [ResourceDiscoveryComponent.invoker.daemon-1] (org.rhq.plugins.apache.ApacheServerComponent)- Augeas is enabled in configuration but was not found on the system. java.lang.UnsatisfiedLinkError: Unable to load library 'augeas': libaugeas.so: cannot open shared object file: No such file or directory JON 3.2.1 released week of 5/5/2014 |
Description of problem: If Augeas support is enabled for an Apache Web Server resource and the Augeas library is missing, an exception is thrown without an explanation. WARN [InventoryManager.discovery-1] (rhq.core.pc.inventory.InventoryManager)- Failure during discovery for [Directory] Resources - failed after 86 ms. java.lang.Exception: Discovery component invocation failed. at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:297) at java.util.concurrent.FutureTask$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.UnsatisfiedLinkError: Unable to load library 'augeas': libaugeas.so: cannot open shared object file: No such file or directory at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:164) at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:237) at com.sun.jna.Library$Handler.<init>(Library.java:140) at com.sun.jna.Native.loadLibrary(Native.java:375) at com.sun.jna.Native.loadLibrary(Native.java:360) at net.augeas.jna.Aug.<clinit>(Unknown Source) at net.augeas.Augeas.<init>(Unknown Source) at net.augeas.Augeas.<init>(Unknown Source) at org.rhq.plugins.apache.ApacheServerComponent.isAugeasEnabled(ApacheServerComponent.java:1011) at org.rhq.plugins.apache.ApacheVirtualHostServiceComponent.isAugeasEnabled(ApacheVirtualHostServiceComponent.java:633) at org.rhq.plugins.apache.ApacheDirectoryDiscoveryComponent.discoverResources(ApacheDirectoryDiscoveryComponent.java:64) at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:293) WARN [InventoryManager.discovery-1] (rhq.core.pc.inventory.InventoryManager)- Failure during discovery for [IfModule] Resources - failed after 0 ms. java.lang.Exception: Discovery component invocation failed. at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:297) at java.util.concurrent.FutureTask$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.NoClassDefFoundError: Could not initialize class net.augeas.jna.Aug at net.augeas.Augeas.<init>(Unknown Source) at net.augeas.Augeas.<init>(Unknown Source) at org.rhq.plugins.apache.ApacheServerComponent.isAugeasEnabled(ApacheServerComponent.java:1011) at org.rhq.plugins.apache.ApacheVirtualHostServiceComponent.isAugeasEnabled(ApacheVirtualHostServiceComponent.java:633) at org.rhq.plugins.apache.ApacheIfModuleDiscoveryComponent.discoverResources(ApacheIfModuleDiscoveryComponent.java:53) at sun.reflect.GeneratedMethodAccessor46.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:293) ... 5 more Version-Release number of selected component (if applicable): 3.1.0 How reproducible: Always Steps to Reproduce: 1. Import Apache server instance into inventory 2. Enable Augeas support from the Apache resource's Inventory > Connection Settings tab If running on Linux: 3. Shut down the agent 4. Rename the <RHQ_AGENT_HOME>/lib/augeas directory to <RHQ_AGENT_HOME/lib/augeas.disabled 5. Start agent Actual results: Agent log will contain an warnings java.lang.UnsatisfiedLinkError: Unable to load library 'augeas': libaugeas.so: cannot open shared object file: No such file or directory java.lang.NoClassDefFoundError: Could not initialize class net.augeas.jna.Aug Expected results: The exception/error should show a message: Augeas is enabled in configuration but was not found on the system. Additional info: The cause of these unhandled exceptions is due to the exception type. We are explicitly catching all exceptions of type java.lang.Exception. However, these exceptions are of type java.lang.Error. We should either catch these specific errors an provide a meaningful message for each or catch java.lang.Throwable to catch all exceptions that could be generated during the isAugeasEnabled() call.