FileCacheStore throws java.lang.IllegalMonitorStateException

[penumbraposts]

Is it possible that a thread issue was introduced into 5.1.0 Alpha FileCacheStore?. 

Using the same app and deployment scenario, I do *not see the exception with Infinispan 5.0.1 Final:

The scenario is:

- Fire up TorqueBox 2.x (JBoss AS 7.0.2 Final with JRuby 1.6.4 support)

- Start a webapp that initializes Infinispan and adds several "beer" properties to Infinispan

- Wait about 30 seconds

- IllegalMonitorStateException is thrown in FileCacheStore (default-FileCacheStore-1 thread)

- Wait about 30 seconds

- IllegalMonitorStateException is thrown in FileCacheStore (default-FileCacheStore-2 thread)

- and so on

My issue _might_ be related to a resolved JIRA ISPN-1418, as a stack trace shows the exception involves core/src/main/java/org/infinispan/loaders/file/FileCacheStore.java line 244 (purgeInternal ?)

Stack trace here https://gist.github.com/1272662

My system:

- Linux 64bit (uname -r 3.0.0-12-generic)

- Java OpenJDK version "1.7.0_147-icedtea"

- JBoss AS 7.0.2.Final "Arc" with -Xms and -Xmx=2048m

- Running a single instance of JBoss AS using ./standalone.sh

- Infinispan 5.1.0 Alpha

- Single computer using localhost

Web App was developed by Lance, TorqueBox Developer who has written an Infinispan adapter for JRuby

https://github.com/lance/beer

Thanks for the excellent product, and for taking my question

--penumbra

[sannegrinovero]

Hi,

I just checked the state of these. Actually if you look at ISPN-1418, it has a resolution version of 5.0.2.FINAL; also 5.1.0.BETA1 contains  the fix, but 5.0.1.FINAL does not

[dan.berindei]

Sanne, I think he meant that he only sees the IllegalMonitorStateException with 5.10.ALPHA1, but not with 5.0.1.FINAL.

Penumbra, that code moved around a bit between 5.1.0.ALPHA1 and 5.1.0.BETA1 because of ISPN-1418, can you post a log with 5.1.0.BETA1 to make it easier to investigate?

[penumbraposts]

I built TorqueBox 2.0.0-SNAPSHOT from source using Infinispan 5.1.0.BETA1 (instead of the default Infinispan 5.1.0.ALPHA1), and the IllegalMonitorStateExceptions *indeed have gone away!

I now see a NumberFormatException due to the use of a "metadata" subfolder in the "Infinispan-FileCacheStore" folder.  Fortunately, Sanne already fixed that issue.

[dan.berindei]

Excellent!