Can you see if it's a specific entity that causes this issue? If so, it should have been resolved. We have a thread about this topic here:
http://groups.google.com/group/google-appengine/browse_thread/thread/32a491e702cb79bd/e83633cc35aceb76#e83633cc35aceb76 On Thu, Apr 29, 2010 at 5:03 AM, bogyom <[email protected]> wrote: > Hi, > > I'm using the low level data-store api to delete entities. Here is my > code: > > private int deleteEntities(String kind, String from, String to, int > limit) { > Query q = createKeyPrefixQuery(kind, from, to); > q.setKeysOnly(); > > ArrayList<Key> keys = new ArrayList<Key>(limit); > Iterable<Entity> entities = datastore.prepare(q).asIterable( > FetchOptions.Builder.withLimit(limit)); > for (Entity e : entities) { > keys.add(e.getKey()); > } > > datastore.delete(keys); > return keys.size(); > } > > I'm using a limit of 100 and delete around 50000 entities in a row > (100 entity chunks) > > It works fine 99% of the time but sometimes i'm getting this: > > com.google.appengine.api.datastore.DatastoreFailureException: internal > error. > at > > com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java: > 51) > at > > com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java: > 67) > at com.google.appengine.api.datastore.DatastoreServiceImpl > $3.run(DatastoreServiceImpl.java:250) > at > > com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java: > 30) > at > > com.google.appengine.api.datastore.DatastoreServiceImpl.delete(DatastoreServiceImpl.java: > 236) > at > > com.google.appengine.api.datastore.DatastoreServiceImpl.delete(DatastoreServiceImpl.java: > 222) > at > > com.scarabresearch.recserver.dao.gae.GAEPersistence.deleteEntities(GAEPersistence.java: > 310) > > I wait and retry a couple of times which helps but sometimes after a > couple of minutes of retrying i still could not delete the entities. > > How can i make this more reliable? > Thanks > Gyorgy > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- Ikai Lan Developer Relations, Google App Engine Twitter: http://twitter.com/ikai Delicious: http://delicious.com/ikailan ---------------- Google App Engine links: Blog: http://googleappengine.blogspot.com Twitter: http://twitter.com/app_engine Reddit: http://www.reddit.com/r/appengine -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
