Thank you, Stephen. This works. I could not locate this earlier in the
mapreduce
documentation.
Regards,
Arun
________________________________
From: Stephen Johnson <onepagewo...@gmail.com>
To: google-appengine-java@googlegroups.com
Sent: Sun, 16 January, 2011 1:33:31 AM
Subject: Re: [appengine-java] Mutation pool bug?
Do you have this defined in your mapper class?
@Override
public void taskCleanup(Context context) {
try {
// make sure to call super classes taskCleanup so that the DatastoreMutationPool
// gets flushed properly otherwise puts/deletes can be lost;
super.taskCleanup(context);
} catch (Exception ex) {
log.severe(ex.toString());
}
}
On Fri, Jan 14, 2011 at 11:34 PM, armanuj <arun_rama...@yahoo.com> wrote:
Hi,
>
>I had earlier posted an issue such as "out of mapper quota" earlier
>(link below). I had about 260 entities being mapped (for a start), and
>not entities were getting updated. I was using the mutation pool for
>updates in the map routine. On further investigations, it appears that
>the mutation pool flushes after every 100 entities in it, and does not
>do so for the last batch of entities. Out of the 260 entities,
>everytime 60 entities would NOT be updated, but 200 would be. This
>appeared to be true even if your entity count was a multiple of 100 -
>the last 100 were not getting updated. However, this issue does not
>exist if I get rid of mutation pool, and put entities directly to the
>datastore - all entities are updated always.
>
>Is this is a bug, or is there something I am not doing correctly with
>mutation pools? The mutation pool code is fairly simple
>(mutationPool.put(entity)) - just as in Ikai's mapper blog post.
>
>Appreciate your help with this.
>
>Regards,
>Arun
>
>Earlier post:
>http://groups.google.com/group/google-appengine-java/browse_thread/thread/fe7fd75e2fa19a7e/a94b0efc6e50c361?hl=en&lnk=gst&q=out+of+mapper+quota#a94b0efc6e50c361
>
>
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