Re: [s3ql] advice on stalled upgrade?

[Nikolaus Rath]

On Sep 15 2019, "'Joseph Maher' via s3ql" <s3...@googlegroups.com> wrote:
> Thanks for s3ql!
>
> Just upgraded to debian buster, and am running an upgrade on an s3ql
> filesystem:
>
> root@nsxxxxxx:~# s3qladm --authfile=/root/.s3ql/authinfo2 --backend-options
> tcp-timeout=200 --cachedir=/mnt/backup/cache/s3ql/ upgrade
[...]
> Upgrading from revision 23 to 24...
> ..processed 6976175/6976177 objects (99%)..
>
>
> However, it's now been stuck on the last two objects for several hours,
> strace gives me:
>
> root@nsxxxxxx:~# strace -p 16678
> strace: Process 16678 attached
> futex(0x7f7e6c000d50, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0,
> NULL, FUTEX_BITSET_MATCH_ANY

That is probably just looking at the main thread which is doing nothing
but waiting for workers to complete.

> Do I need to crtl-C it? It's just that last time I did that it seemed to
> download all the metadata again, and though it was a bit faster processing
> the objects on the second run , it still takes days rather than
> hours...

What do you mean with "last time"? Did you attempt this specific upgrade
before, or was that for from an older file system revision? Unless you
have tried this specific one (23->24), please try it one more time
before we attempt more debugging.



Best,
-Nikolaus

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»Time flies like an arrow, fruit flies like a Banana.«

[Joseph Maher]

I meant the current upgrade (23->24) got stuck once before, so this was the second run - I ran it a third time and everything worked!

Thanks!

Joseph