On my initial copy I remember it staying at 99% for a long time, but it
eventually finished. I was copying a lot of data so the full copy took 3.5
days. In the sync phase, I remember it staying at 99% for almost half the
time of every sync and sometimes more. My first sync took 12 hours, and the
second 6 hours. On the last sync it stayed on 99% too long so I stopped it
and jumped to the last stage (read-only mode) and that made it much faster.
Waleed
On Tue, Jul 3, 2012 at 12:58 AM, Alexander Trakhimenok <
alexander.trakhime...@gmail.com> wrote:
> We are migrating our app to an HRD version and the migration tool process
> hangs on 2nd step "Copy" at 99% for 10+ hours.
>
> We've restarted migration but it did not help - still hangs at 99% and the
> "approximately remaining" time is steadily and slowly growing.
>
> I've been googling around and as I understand it can be because of indexes
> issue (5K index entry limit per entity) or some other reason that prevent an
> entity to be stored to the new HRD database. Actually removing some indexes
> helped us to move from 98.50% to 99% and not any further.
>
> But we can not find any error/status logs that would point us on what exactly
> entity kind/id causing the issue.
>
> On the Migration Tool screen it says:
> =
> If there is a problem, you can pause the migration. While paused, all
> migration mapreduces will be paused and but no other actions will be taken
> until an administrator either resumes the migration or reverts the process.
> To pause the migration, please click the button below.
> =
>
> But how do we know if there is a problem and what exactly the problem is? It
> would be cool to have a "last or list if error messages & entity keys for the
> migration process.
>
> Any ideas how to identify and solve the issue? We have major release pending
> due to limitations of M/S database and would greatly appreciate any help.
>
>
> I've raised a production issue for this as well
> http://code.google.com/p/googleappengine/issues/detail?id=7787
>
>
> but may be someone from community can help us to resolve it before Google
> Engineers notice the ticket.
>
>
> Alexander Trakhimenok
>
>
> Lead developer on http://www.myclasses.org/ project powered by GAE (AppEngine
> + Python + Django).
>
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