What drives the number of active shards in a mapreduce job ? In my case, mapreduce jobs execution usually work fine, but only ONE shard actually processes entities, the 3 others don't.
Any clue ? On 14/09/10 00:06, "Benjamin" <bsaut...@gmail.com> wrote: > OK thanks Ikai, > > I was trying to avoid that but see no problem with it. > > Ben > > On Sep 13, 5:15 pm, "Ikai Lan (Google)" <ikai.l+gro...@google.com> > wrote: >> You can't. Empty properties are the equivalent of unindexed properties. >> You'll need to iterate over all the Entities in your datastore and update >> them. The Mapper API is a very good tool for this: >> >> http://code.google.com/p/appengine-mapreduce/ >> >> >> >> On Mon, Sep 13, 2010 at 12:20 PM, Benjamin <bsaut...@gmail.com> wrote: >>> Brain freeze guys - >> >>> I added a property to my object and persisted in the datastore. The >>> older object have now have a column that when viewed in the control >>> panel have a value of <missing>. I need to query those objects so i >>> can update them - propname == null , propname == "" - I can't seem >>> to find the right syntax for this. >> >>> -- >>> 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 >>> google-appengine-j...@googlegroups.com. >>> To unsubscribe from this group, send email to >>> google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2B >>> unsubscr...@googlegroups.com> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/google-appengine-java?hl=en. -- 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 google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
