VERY good news. Can't wait. Thanks. From: "Ikai Lan (Google)" <ikai.l+gro...@google.com> Reply-To: <google-appengine-java@googlegroups.com> Date: Tue, 16 Nov 2010 12:07:59 -0800 To: <google-appengine-java@googlegroups.com> Subject: Re: [appengine-java] Mapper & Blobstore bytes read limit
We discovered a bug. We're not reading in the entire blob, but we are reading in far too much data. Fred has a fix waiting in the rafters. I'll post again when it's been pushed. -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com <http://googleappengine.blogspot.com/> Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine On Thu, Nov 4, 2010 at 2:36 AM, Cyrille Vincey <crll...@gmail.com> wrote: > Not a lot of interesting stuff to say : > 1. My code is quite as simple as your sample code: the only real difference is > that I create 2 parent/child entities in a row for one given csv line entry. > 2. My csv file contains 4.3 million lines. > 2. I launched the mapper job with 10 shards. > 3. "worker-attempt-XXX" tasks had 20 retries each in average. > 4. The blobstore bytes read quota (100 Go) got reached within the first 3 > hours. > 5. Est. 10% of the entities where actually created after 24h (with my previous > non-blob-based mapper job, those 4.3 million entities where created within 1 > day) > 6. Log does not reveal anything interesting. > > I am currently running a new test with a 500,000 lines csv file (20 Mb file). > Performance looks better. To me, blob file size may have an influence on the > mapper performance. > > If you need more details, let me know. > > From: "Ikai Lan (Google)" <ikai.l+gro...@google.com> > Reply-To: <google-appengine-java@googlegroups.com> > Date: Wed, 3 Nov 2010 12:22:10 -0700 > To: <google-appengine-java@googlegroups.com> > Subject: Re: [appengine-java] Mapper & Blobstore bytes read limit > > This behavior doesn't seem right. No, the entire blob should not be getting > read. We'll look into this. > > Do you have any more details? Could tasks be getting retried? > > -- > Ikai Lan > Developer Programs Engineer, Google App Engine > Blogger: http://googleappengine.blogspot.com > <http://googleappengine.blogspot.com/> > Reddit: http://www.reddit.com/r/appengine > Twitter: http://twitter.com/app_engine > > > > On Tue, Nov 2, 2010 at 9:42 AM, Cyrille Vincey <crll...@gmail.com> wrote: >> I've been testing Ikai's bulkload mapper (see url below) with a pretty big >> csv file (200 Mb). >> It works great, and I encourage most of you to consider implementing this for >> entity uploads. >> >> Yet, I do face one last issue with an unexpected quota : blobstore bytes >> read. >> This quota cannot be tuned via the billing settings, and it's not clear >> whether it limits the speed of my process or not when it's reached. >> >> >> See ? Yep, it's a lot of bytes readŠ >> Could someone confirm that the blob csv file is *NOT* fully fetched each time >> the mapper iterates on a new line ? >> >> (ikai's post) >> http://ikaisays.com/2010/08/11/using-the-app-engine-mapper-for-bulk-data-impo >> rt/ >> >> >> -- >> 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 >> <mailto:google-appengine-java%2bunsubscr...@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. > -- > 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 > <mailto:google-appengine-java%2bunsubscr...@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. -- 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.
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