I believe that the stack trace from a HDEE is not accurate. I found
that it seemed to be copied from the first DEE. Are you sure you are
not catching and ignoring this first?
On 12 Feb 2010, at 22:24, Esteban Ignacio Masoero wrote:
Hi there:
I'm facing the same problem. I tried and I tried and I still can't
catch any deadlineException that is supossed to be thrown when I
exceed the 30 seconds. The only thing I see is a
HardDeadlineExceededError, and in my case it ocurrs in the middle of
a JDOQuery.deletePersistentAll() method.
Anyone has any ideas? All I want to do is make sure that I'm
handling that situation in case it happens. Here's the stack:
com.google.apphosting.runtime.HardDeadlineExceededError: This
request (ccc45fc5ce7541bd) started at 2010/02/12 14:51:12.763 UTC
and was still executing at 2010/02/12 14:51:42.551 UTC.
at com.google.appengine.runtime.Request.process-
ccc45fc5ce7541bd(Request.java)
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
at
java
.util
.concurrent
.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(Unknown Source)
at
java
.util
.concurrent
.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(Unknown
Source)
at java.util.concurrent.CountDownLatch.await(Unknown Source)
at
com.google.net.rpc.util.RpcWaiter.waitForRpcsToFinish(RpcWaiter.java:
96)
at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:98)
at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:48)
at
com
.google
.appengine
.api
.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java:52)
at com.google.appengine.api.datastore.DatastoreServiceImpl
$3.run(DatastoreServiceImpl.java:225)
at
com
.google
.appengine
.api
.datastore.TransactionRunner.runInTransaction(TransactionRunner.java:
30)
at
com
.google
.appengine
.api.datastore.DatastoreServiceImpl.delete(DatastoreServiceImpl.java:
211)
at
com
.google
.appengine
.api.datastore.DatastoreServiceImpl.delete(DatastoreServiceImpl.java:
192)
at
com
.google
.appengine
.api.datastore.DatastoreServiceImpl.delete(DatastoreServiceImpl.java:
184)
at
org
.datanucleus
.store
.appengine
.RuntimeExceptionWrappingDatastoreService
.delete(RuntimeExceptionWrappingDatastoreService.java:141)
at
org
.datanucleus
.store
.appengine
.DatastorePersistenceHandler.delete(DatastorePersistenceHandler.java:
196)
at
org
.datanucleus
.store
.appengine
.DatastorePersistenceHandler
.deleteObject(DatastorePersistenceHandler.java:612)
at
org
.datanucleus
.state
.JDOStateManagerImpl
.internalDeletePersistent(JDOStateManagerImpl.java:4198)
at
org
.datanucleus
.state.JDOStateManagerImpl.deletePersistent(JDOStateManagerImpl.java:
4166)
at
org
.datanucleus
.ObjectManagerImpl.deleteObjectInternal(ObjectManagerImpl.java:1470)
at
org
.datanucleus.ObjectManagerImpl.deleteObject(ObjectManagerImpl.java:
1395)
at
org
.datanucleus.ObjectManagerImpl.deleteObjects(ObjectManagerImpl.java:
1534)
at
org
.datanucleus.store.query.Query.performDeletePersistentAll(Query.java:
1881)
at
org
.datanucleus
.store
.query
.AbstractJavaQuery.performDeletePersistentAll(AbstractJavaQuery.java:
136)
at org.datanucleus.store.query.Query.deletePersistentAll(Query.java:
1832)
at org.datanucleus.store.query.Query.deletePersistentAll(Query.java:
1780)
at org.datanucleus.store.query.Query.deletePersistentAll(Query.java:
1769)
at org.datanucleus.jdo.JDOQuery.deletePersistentAll(JDOQuery.java:159)
at ar.com.SomeCodeOfMine$8.doStuff(Blah.java:175)
Thanks,
Esteban
On Thu, Dec 24, 2009 at 4:24 AM, Lior Harsat <[email protected]>
wrote:
Hi Don,
thanx for your quick reply.
I am pretty sure I am not catching DeadlineExceededException anywhere
in the code (but I'll check again...).
I've seen some posts in the past and some bugs submitted to google
code that there is an inconsistent behavior with regard to the
deadline error/exception.
Thanx,Lior
On Dec 23, 10:36 pm, Don Schwarz <[email protected]> wrote:
> You cannot catch HardDeadlineExceededError.
DeadlineExceededException
> should be thrown first.
>
> Perhaps some code you are using is silently catching and ignoring
it?
>
>
>
> On Wed, Dec 23, 2009 at 4:08 AM, Lior Harsat
<[email protected]> wrote:
> > Hi,
>
> > I am trying to build some mechanism for handling
> > HardDeadlineExceededError (and other timeouts as well).
> > I wish to catch this Error and wrap up my work so I can send my
own
> > response instead of the default error (500) message that GAE
produces.
> > Here's the problem. I cant catch this Error for some reason.I've
made
> > sure my catch clause is in the right place (from the error
provided
> > stack trace). I even catch a Throwable to make sure I don't miss
the
> > Error.
> > Sadly I don't reach the catch clause.
>
> > Has anyone had some experience with this?
> > Do you have some other innovative ideas on how to handle such
> > timeouts ?
>
> > B.T.W
> > I would have expected that a DeadlineExceededException would be
thrown
> > instead , dont you?
>
> > Thanx, Lior
>
> > --
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