brando56894
Wizard
- Joined
- Feb 15, 2014
- Messages
- 1,537
Recently, it looks like I'm running out of swap space for some reason, since I get the following message dumped to STDOUT hundreds of times: swap_pager_getswapspace(11): failed
I'm currently on FreeNAS-11-MASTER-201802100419, I have 40 GB allocated to my FreeNAS VM, so I don't see why it's using swap. I guess the ARC is gobbling up it all?
I created a 20 GB ZVOL to use as additional swap space, but FreeBSD won't let me turn it on for some reason. I found a Oracle doc stating to use a ZVOL for swap, so is that Solaris only?
I just looked at htop and swap is 99.7% used....but there are 2.6 GB of RAM free.
I'm thinking this may be a bug.
Code:
root@freenas:~ # swapinfo Device 1K-blocks Used Avail Capacity /dev/mirror/swap0.eli 2097152 2090604 6548 100% /dev/mirror/swap1.eli 2097152 2090748 6404 100% /dev/mirror/swap2.eli 2097152 2091008 6144 100% /dev/mirror/swap3.eli 2097152 2090392 6760 100% /dev/mirror/swap4.eli 2097152 2091580 5572 100% Total 10485760 10454332 31428 100%
I'm currently on FreeNAS-11-MASTER-201802100419, I have 40 GB allocated to my FreeNAS VM, so I don't see why it's using swap. I guess the ARC is gobbling up it all?
I created a 20 GB ZVOL to use as additional swap space, but FreeBSD won't let me turn it on for some reason. I found a Oracle doc stating to use a ZVOL for swap, so is that Solaris only?
Code:
root@freenas:~ # swapon -a /dev/zvol/storage/swap swapon: /dev/zvol/storage/swap: Operation not supported by device root@freenas:~ # zfs get all storage/swap NAME PROPERTY VALUE SOURCE storage/swap type volume - storage/swap creation Tue Feb 13 11:43 2018 - storage/swap used 20.6G - storage/swap available 13.6T - storage/swap referenced 112K - storage/swap compressratio 1.00x - storage/swap reservation none default storage/swap volsize 20G local storage/swap checksum on default storage/swap compression lz4 inherited from storage storage/swap readonly off default storage/swap copies 1 default storage/swap refreservation 20.6G local storage/swap primarycache all default storage/swap secondarycache all default storage/swap usedbysnapshots 0 - storage/swap usedbydataset 112K - storage/swap usedbychildren 0 - storage/swap usedbyrefreservation 20.6G - storage/swap logbias latency default storage/swap dedup off default storage/swap mlslabel - storage/swap sync always inherited from storage storage/swap refcompressratio 1.00x - storage/swap written 112K - storage/swap logicalused 6K - storage/swap logicalreferenced 6K - storage/swap volmode default default storage/swap snapshot_limit none default storage/swap snapshot_count none default storage/swap redundant_metadata all default storage/swap org.freebsd.ioc:active yes inherited from storage
I just looked at htop and swap is 99.7% used....but there are 2.6 GB of RAM free.
I'm thinking this may be a bug.
Last edited: