Deadlock in Eclipselink

[Karl Kildén <ka...@gmail.com>]

Hello guys!

I am trying to use a pessimistic lock to assign master in a cluster. It
seems fine in my tests but I feel worried because the timeout is not
working.

Basically my first thread locks and then the second thread seems to be
hanging forever? Details here:

http://stackoverflow.com/questions/25643966/eclipse-deadlocks-when-using-pessimistic-lock

Would appreciate any tips ;)

Re: Deadlock in Eclipselink

[Karl Kildén <ka...@gmail.com>]

OpenJPA knows what's up...

<openjpa-2.4.0-nonfinal-1598334-r422266:1599166 fatal general error>
org.apache.openjpa.persistence.PersistenceException: The database
dictionary in use ("class org.apache.openjpa.jdbc.sql.HSQLDictionary")
reports that it does not have feature "SupportsSelectForUpdate".  This
feature is needed to complete the current operation.  To force OpenJPA to
try to use the feature anyway, set the following property:
openjpa.jdbc.DBDictionary: SupportsSelectForUpdate=<value>




On 3 September 2014 14:13, Karl Kildén <ka...@gmail.com> wrote:

> Hello guys!
>
> I am trying to use a pessimistic lock to assign master in a cluster. It
> seems fine in my tests but I feel worried because the timeout is not
> working.
>
> Basically my first thread locks and then the second thread seems to be
> hanging forever? Details here:
>
>
> http://stackoverflow.com/questions/25643966/eclipse-deadlocks-when-using-pessimistic-lock
>
> Would appreciate any tips ;)
>