Uppsala Multidisciplinary Center for Advanced Computational Science

Problem with a part of Pica, /pica/v19. -- NOW FIXED

2016-09-15

UPPMAX try to keep all parts of storage Pica rather evenly filled, because reading and writing get much slower on a part of Pica, when it is very filled.

Now the part called /pica/v19 is 97%. That is very bad.

We now need to stop all writing to that file system.

This means that all writes from e.g. jobs will crash, probably with write errors. We are sorry about this, but the situation might get much worse, if we allow /pica/v19 to get even more filled up.

Since yesterday we are moving project storage away from /pica/v19 to other parts of Pica.

When we have more news on the subject, we will add them here.

The /proj and /proj/nobackup storage that is involved are listed at the bottom of this news item.

Update at 1640 hours

PPMAX try to keep all parts of storage Pica rather evenly filled, because reading and writing get much slower on a part of Pica, when it is very filled.

Now the part called /pica/v19 is 97%. That is very bad.

We now need to stop all writing to that file system.

This means that all writes from e.g. jobs will crash, probably with write errors. We are sorry about this, but the situation might get much worse, if we allow /pica/v19 to get even more filled up.

Since yesterday we are moving project storage away from /pica/v19 to other parts of Pica.

When we have more news on the subject, we will add them here.

The /proj and /proj/nobackup storage that is involved are listed at the bottom of this news item.

Update at 1640 hours

We stopped writes to /pica/v19 at 1540 hours today. If you have a job that finished later than that and wrote to any of the listed project or project nobackup storage areas, ypu should probably rerun your job when this problem is fixed or your project storage has been moved to another storage area.

We stopped writes to /pica/v19 at 1540 hours today. If you have a job that finished later than that and wrote to any of the listed project or project nobackup storage areas, ypu should probably rerun your job when this problem is fixed or your project storage has been moved to another storage area.

Update Friday at 1520 hours

We are still moving project directories out of /pica/v19 and will continue to do so. The project directories will continue to be write protected at least until Monday afternoon. We are sorry about this, but the copying of project directories is a very slow process.

Update Monday at 1710 hours

We are still moving project directories out of /pica/v19. Tomorrow (Tuesday) afternoon, we plan to open the files system for write again. Those few projects directories that we already have moved, you may already be able to use (sorry, we have no new lis).

Update Tuesday at 1540 hours

We have now re-opened the files system for write. So everything is hopefully back to normal. Please report any remaining problems with /pica/v19 to support@uppmax.uu.se.

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