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From "Karl Wright (JIRA)" <>
Subject [jira] [Reopened] (CONNECTORS-1145) multiprocess-file-example blocks in configuration on Windows
Date Thu, 15 Jan 2015 00:46:34 GMT


Karl Wright reopened CONNECTORS-1145:

>From Michael:

I'm running into a hanging issue when trying to use the new 2.0 release.  Using the multiprocess-file-example,
I do the following:


Then, go to the mcf-crawler-ui, create a new Null output connection, and try to save it. 
My browser then just spins (I've given it up to 30 minutes, and nothing happens).

A stack trace shows the Jetty process hanging here:

"qtp638408253-18" prio=5 tid=0x00007fdb3cc30000 nid=0x7403 in Object.wait() [0x000000012366f000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x000000011bdf15a0> (a java.lang.Integer)
at org.apache.manifoldcf.core.system.ManifoldCF.sleep(
- locked <0x000000011bdf15a0> (a java.lang.Integer)
at org.apache.manifoldcf.core.lockmanager.LockObject.obtainGlobalNonExWriteLock(
at org.apache.manifoldcf.core.lockmanager.LockObject.enterNonExWriteLock(
- locked <0x000000011b30c440> (a org.apache.manifoldcf.core.lockmanager.FileLockObject)
at org.apache.manifoldcf.core.lockmanager.LockGate.enterNonExWriteLock(
at org.apache.manifoldcf.core.lockmanager.BaseLockManager.enterNonExWrite(
at org.apache.manifoldcf.core.lockmanager.BaseLockManager.enterNonExWriteLock(
at org.apache.manifoldcf.core.lockmanager.LockManager.enterNonExWriteLock(
at org.apache.jsp.execute_jsp._jspService(
at org.apache.jasper.runtime.HttpJspBase.service(
at javax.servlet.http.HttpServlet.service(

These steps work fine in the 1.7.2 release.  Also, the single process example work as expected
with these steps.

Did I miss a step needed in the 2.0 release with the 'file' example?

> multiprocess-file-example blocks in configuration on Windows
> ------------------------------------------------------------
>                 Key: CONNECTORS-1145
>                 URL:
>             Project: ManifoldCF
>          Issue Type: Bug
>          Components: Framework core
>    Affects Versions: ManifoldCF 1.8, ManifoldCF 2.0
>         Environment: Windows 2012
>            Reporter: Andreas Baumann
>            Assignee: Karl Wright
>             Fix For: ManifoldCF 1.9, ManifoldCF 2.1
> Saving a configuration setting (for instance a new Output Connector) hangs
> forevert. Inspecting the problem with the 'Process Monitor' shows me
> that there is an infinite loop while locking and reading a file in the syncharea.
> I disabled Windows Search and virus scanners, so far no luck.

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