I have debugged the reported scenario. Following is my finding:

1. The IU is not downloaded as CollectAction > collect( ) function reported that aggregatedRepositoryView.contains(key), so ArtifactRepositoryManager.NO_ARTIFACT_REQUEST was returned. 2. Sometimes the issue is not reproducible specially when I am debugging. So I am pretty sure it is some kind of race condition as Carlos mentioned. I am using Ubuntu 12.04 32-bit and it was reproducible on Windows as well.

I am new to p2 stuff and I have a very basic question, AFAIU aggregatedRepositoryView.contains(key) means that we already have this item in cache, right? Where is p2-cache located?

I will keep debugging and will let you know if I determine the exact cause of the issue.

Thanks,
-Ali

-------------------------------------
Pascal,

Thanks for the help.

The more I work with p2 the clearer things become, but
a pointer or two like this is really invaluable when
starting to debug a problem.

Cheers,
Carlos.

On 10/27/2012 3:02 PM, Pascal Rapicault wrote:
Since you seem to think that the missing file should have been downloaded, the 
first thing is to see why it has not been and why it has not failed. To see 
what is going on try putting a breakpoint in:
      DownloadManager#start(...) - This is the method that is responsible for 
downloading all the necessary artifacts.
      SimpleArtifactRepository#downloadArtifact( ) - This method is where the 
actual download is happening.

HTH

Pascal

-----Original Message-----
From: p2-dev-bounces@xxxxxxxxxxx [mailto:p2-dev-bounces@xxxxxxxxxxx] On Behalf 
Of Carlos O'Donell
Sent: October-27-12 12:35 PM
To: P2 developer discussions
Subject: [p2-dev] Problems with boostrap installs, mysterious missing jars, and 
checkCertificates errors.

p2,

Our product upgrade process consists of using the p2 director to tear down an 
existing install and then install the new version of our root IU.

Recently I've started seeing the following failure during the install process:
~~~
!ENTRY org.eclipse.equinox.p2.engine 4 4 2012-10-27 12:16:57.109 !MESSAGE An 
error occurred during the 
org.eclipse.equinox.internal.p2.engine.phases.CheckTrust phase.
!SUBENTRY 1 org.eclipse.equinox.p2.engine 4 0 2012-10-27 12:16:57.109 !MESSAGE 
session context was:(profile=SGXXProfile, 
phase=org.eclipse.equinox.internal.p2.engine.phases.CheckTrust, operand=, 
action=).
!SUBENTRY 1 org.eclipse.equinox.p2.engine 4 0 2012-10-27 12:16:57.109 !MESSAGE 
Error reading signed content.
!STACK 0
java.io.IOException: The file 
"C:\Users\carloso\MentorGraphics\Support\CB-1602\install03\eclipse\plugins\gnu.io.rxtx_2.1.7.4_v20071016.jar"
 does not exist
      at 
org.eclipse.osgi.baseadaptor.bundlefile.ZipBundleFile.<init>(ZipBundleFile.java:61)
      at 
org.eclipse.osgi.baseadaptor.bundlefile.ZipBundleFile.<init>(ZipBundleFile.java:55)
      at 
org.eclipse.osgi.internal.signedcontent.SignedBundleHook.getSignedContent(SignedBundleHook.java:253)
      at 
org.eclipse.equinox.internal.p2.engine.phases.CertificateChecker.checkCertificates(CertificateChecker.java:73)
      at 
org.eclipse.equinox.internal.p2.engine.phases.CertificateChecker.start(CertificateChecker.java:54)
      at 
org.eclipse.equinox.internal.p2.engine.phases.CheckTrust.completePhase(CheckTrust.java:50)
      at 
org.eclipse.equinox.internal.p2.engine.Phase.postPerform(Phase.java:241)
      at org.eclipse.equinox.internal.p2.engine.Phase.perform(Phase.java:98)
      at 
org.eclipse.equinox.internal.p2.engine.PhaseSet.perform(PhaseSet.java:47)
      at org.eclipse.equinox.internal.p2.engine.Engine.perform(Engine.java:75)
      at org.eclipse.equinox.internal.p2.engine.Engine.perform(Engine.java:44)
      at 
org.eclipse.equinox.internal.provisional.p2.director.PlanExecutionHelper.executePlan(PlanExecutionHelper.java:41)
      at 
org.eclipse.equinox.internal.provisional.p2.director.PlanExecutionHelper.executePlan(PlanExecutionHelper.java:23)
      at 
org.eclipse.equinox.internal.p2.director.app.DirectorApplication.executePlan(DirectorApplication.java:767)
      at 
org.eclipse.equinox.internal.p2.director.app.DirectorApplication.planAndExecute(DirectorApplication.java:760)
      at 
org.eclipse.equinox.internal.p2.director.app.DirectorApplication.performProvisioningActions(DirectorApplication.java:747)
      at 
org.eclipse.equinox.internal.p2.director.app.DirectorApplication.run(DirectorApplication.java:1040)
      at 
org.eclipse.equinox.internal.p2.director.app.DirectorApplication.start(DirectorApplication.java:1222)
      at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
      at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
      at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
      at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
      at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
      at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
      at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
      at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
~~~

It's true, the file's not there, but that's because it seems like p2 didn't 
install it and we got to running checkCertificates on a file that wasn't yet 
installed. We're using platform 3.8.1.

I've seen this issue before and it appears to be a race, and depending on the 
OS it might not reproduce.

Has anyone else seen something like this?

Any pointers on where to start digging?

Cheers,
Carlos.
--
Carlos O'Donell
Mentor Graphics / CodeSourcery
carlos_odonell@xxxxxxxxxx
carlos@xxxxxxxxxxxxxxxx
+1 (613) 963 1026
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--
Carlos O'Donell
Mentor Graphics / CodeSourcery
carlos_odonell@xxxxxxxxxx
carlos@xxxxxxxxxxxxxxxx
+1 (613) 963 1026




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