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Well, normally when heavy swapping starts to occur, vmstat will show high numbers in vmstat under the "sr" or scan reads column. Ours is 0 across the board.

Also, "top" shows 8GB of swap as...

Good luck.

---------- Post updated at 05:45 PM ---------- Previous update was at 05:38 PM ----------

If your server is on the same subnet as your PC you are working on (you're ssh'd from your...

Here is a swap -s from a previous time we received the error.


total: 15836552k bytes allocated + 6354480k reserved = 22191032k used, 157288k available


I'm still baffled why we wouldn't see...

Well, if you are trying to send email outside the company, your box has to be on a network with outside access. Check your /etc/resolv.conf file for the "nameserver" value. You have to have a valid...

We have one box here that was able to boot with a migration to /usr on zfs, but the root was booting off ZFS, so that probably helped.

I would probably suggest creating, instead of a ZFS slice,...

Well, are you trying to send email to another box inside your environment or outside yoru environment. Can you ping something externally, like google?

ping google.com

So in other words, my remaining physical memory and swap is spoken for. It may never be used, but it's spoken for.

Here is a pmap of our one of our processes:

Address Kbytes RSS Anon ...

Have you tried pinging those boxes to make sure you have connectivity to them?

Are you locally connected to the server, or ssh'd in?

That all makes sense, I guess I just would have assumed a vmstat would have shown the system scanning for any unreserved memory to use.

From what I'm seeing, it's like my system has used all the...

You probably should be able to send mail now. If not, just restart sendmail and try again.

No, I completely agree. But why is the system not using any of the remaining physical memory? Also, shouldn't we be seeing scan reads?

I realize that part of physical memory is used for swap and...

Oh, I completely agree. But with almost 900MB free physical memory, why is this necessary?

Well, CVSROOT usually belongs to CVS Concurrent Versions System - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Concurrent_Versions_System)

To find out of you have slices...

Agreed.

Honestly, I would take some time to learn to see if you have available slices on your root disk to move /var to. Even with removing stuff from crash, your space is pretty tight.

Also,...

Correct, that's why i kind of suggested /usr/local, as that's usually patches or packages installed from sunfreeware or what not.

I only offered moving the entire /usr if it was a last resort.

Each session is about 30-50MB (including shared libs) 10-20MB anon. We go from 1080 users to 1087 and the error starts happening.

---------- Post updated at 04:29 PM ---------- Previous update...

Yes. Sendmail write incoming and pending message into /var/spool/*. If can't write there, as evident by your sendmail errors in /var/adm/messages.

---------- Post updated at 04:16 PM ----------...

Well, right I see that. But Solaris shouldn't be reporting "no space left" when, technically, there is. Am I right?

Well, your / directory is at 100%, and that's not very good.
/dev/dsk/c0d0s0 4205630 4146189 17385 100% /

I would go to the /var filesystem and start looking what you can remove. Look for large...

df -k

Look for a filesystem at 100%.
It looks like may be /var full on you. Clean up time.

Look for sendmail logs in /var/log/ or /var/adm

cd /var/log
grep sendmail *
cd /var/adm
grep sendmail *

What does your maillog say? It may be in /var/log/maillog

Well, you can't allocate zfs to ufs, but you can create a symlink to zfs. Figure out 1+ subdirectories of /usr you can move and move them to the zvol.

example:

zfs create zpool/vol1
cd /usr...

I take it this is a sendmail client, sending to some sort of mail server (sendmail, exhange or otherwise). Did you make sure your sendmail.cf is setup to send to the correct server?

:wall:I'm having a bit of a problem with Solaris 10u8 and one of our applications requesting memory and being told, "no space left".

The break down:
24GB Physical Memory
8GB swap

at the time...