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Diffstat (limited to 'topics/octopus/moosefs/moosefs-maintenance.gmi')
| -rw-r--r-- | topics/octopus/moosefs/moosefs-maintenance.gmi | 132 |
1 files changed, 116 insertions, 16 deletions
diff --git a/topics/octopus/moosefs/moosefs-maintenance.gmi b/topics/octopus/moosefs/moosefs-maintenance.gmi index 1032cde..3f35219 100644 --- a/topics/octopus/moosefs/moosefs-maintenance.gmi +++ b/topics/octopus/moosefs/moosefs-maintenance.gmi @@ -2,6 +2,18 @@ We use moosefs as a network distributed storage system with redundancy. The setup is to use SSDs for fast access and spinning storage for redundancy/backups (in turn these are in RAID5 configuration). In addition we'll experiment with a non-redundant fast storage access using the fastest drives and network connections. +We have three storage classes: + +* 2CP - one copy on SSD and one on RAID5 spinning HDD (default) +* scratch - one copy on SSD +* raid5 - one copy on RAID5 spinning HDDs + +For *labels* we have an R class for redundant (very slow) SSDs. So, S=SSD, H=HDD, F=fast SSD and R=slow SSD. + +# Numbers + +* 20250109 - Copying data from Lizard to current Moosefs (H,S) goes at about 0.3TB/h (300GB/h or 80MB/s). + # Configuration ## Ports @@ -12,9 +24,10 @@ We should use different ports than lizard. Lizard uses 9419-24 by default. So le * 9519 for moose meta logger * 9520 for chunk server connections * 9521 for mount connections -* 9522 for slow HDD chunks (HDD) -* 9523 for replicating SSD chunks (SSD) -* 9524 for fast non-redundant SSD chunks (FAST) +* 9522 for slow HDD chunks (H:HDD) +* 9523 for replicating SSD chunks (S:SSD) +* 9524 for fast non-redundant SSD chunks (F:FAST) +* 9525 for redundant SSD chunks (R:SSD slow) ## Topology @@ -37,7 +50,7 @@ root@octopus03:/export# dd if=test1.img of=/dev/null bs=1G count=1 rm test1.img ``` -Above is on a RAID5 setup. Typical values are: +Above is on a RAID5 setup. Other typical values are: ``` Write Read @@ -45,6 +58,7 @@ Octopus Dell NVME 1.2 GB/s 2.0 GB/s Octopus03 RAID5 487 MB/s 1.7 GB/s Octopus01 RAID5 127 MB/s 163 MB/s Samsung SSD 870 408 MB/s 565 MB/s +ST5000LM000-2AN1 103 MB/s 127 MB/s ``` ``` @@ -58,6 +72,28 @@ mfs#octopus03:9521 3.7T 4.0G 3.7T 1% /moosefs-fast mfscli -H octopus03 -P 9521 -SCS ``` +## Scripting + +On the head node we can copy files across all nodes. After adding the IP to mfsexports.cfg run the moose mount script: + +``` +./run-node.sh tux06 'mkdir /etc/mfs' +./run-node.sh tux06 'groupadd -g 52 mfs' +./run-node.sh tux06 'useradd -u 52 -g 52 -M -s /usr/sbin/nologin mfs' +./run-node.sh tux06 'mkdir /moosefs' +./run-node.sh tux06 'chown mfs:mfs /moosefs' +./copy-to-node.sh tux06 +./run-node.sh tux06 'systemctl start moosefs-mount' +``` + +Same for chunk server: + +``` +mkdir /var/lib/mfs +chown mfs:mfs /var/lib/mfs +./run-node.sh tux06 'systemctl start moosefs-chunkserver-ssd' +``` + ## Config ``` @@ -70,6 +106,8 @@ root@octopus03:/etc/mfs# diff example/mfsexports.cfg.sample mfsexports.cfg > 172.23.17.0/24 / rw,alldirs,maproot=0,ignoregid ``` +Note above exports should be made IP speficic. + ``` root@octopus03:/etc/mfs# diff example/mfsmaster.cfg.sample mfsmaster.cfg 4a5,10 @@ -170,6 +208,8 @@ file will be re-read on each process reload, regardless if the path was changed +CSSERV_LISTEN_PORT = 9524 ``` +Mount + ``` +++ b/mfs/mfsmount.cfg mfsmaster=octopus03,nosuid,nodev,noatime,nosuid,mfscachemode=AUTO,mfstimeout=30,mfswritecachesize=2048,mfsreadaheadsize=2048,mfsport=9521 @@ -179,6 +219,8 @@ mfsmaster=octopus03,nosuid,nodev,noatime,nosuid,mfscachemode=AUTO,mfstimeout=30, ## systemd +### Master + ``` root@octopus03:/etc# cat systemd/system/moosefs-master.service Description=MooseFS master server daemon @@ -203,20 +245,10 @@ OOMScoreAdjust=-999 WantedBy=multi-user.target ``` -``` - cat systemd/system/moosefs-mount.service -[Unit] -Description=Moosefs mounts -After=syslog.target network.target -[Service] -Type=forking -TimeoutSec=600 -ExecStart=/usr/local/guix-profiles/moosefs/bin/mfsmount -c /etc/mfs/mfsmount.cfg -ExecStop=/usr/bin/umount /moosefs-fast +### Chunk service -[Install] -WantedBy=multi-user.target +``` root@octopus04:/etc# cat systemd/system/moosefs-chunkserver-fast.service [Unit] Description=MooseFS Chunkserver (Fast) @@ -235,6 +267,8 @@ LimitNOFILE=65535 WantedBy=multi-user.target ``` +### Mount service + ``` cat systemd/system/moosefs-mount.service [Unit] @@ -250,3 +284,69 @@ ExecStop=/usr/bin/umount /moosefs-fast [Install] WantedBy=multi-user.target ``` + +# Status + +Show missing, undergoal, and overgoal chunks: + +``` +mfscli -H octopus04 -P 9521 -p -SMU +mfscli -H octopus04 -P 9521 -SIC -2 +``` + +Disk health + +``` +mfscli -H octopus04 -P 9521 -p -SHD +``` + +``` +root@octopus04:/etc/mfs# mfsgetsclass /moosefs/ +/moosefs/: 2CP +root@octopus04:/etc/mfs# mfsfileinfo /moosefs/README +/moosefs/README: + chunk 0: 0000000000000022_00000001 / (id:34 ver:1) ; mtime:1767348586 (2026-01-02 10:09:46) + copy 1: 172.23.17.254:9524 ; status:VALID + copy 2: 172.23.23.246:9524 ; status:VALID +``` + +# Classes + + +``` +root@octopus04:/moosefs# mfsscadmin list -M /moosefs/ +2CP +3CP +EC4+1 +EC8+1 +``` + +``` +mfsscadmin create -K F scratch +storage class make S: error: Operation not permitted (mfs admin only) +``` + +After adding admin to export on O4: + +``` +root@octopus04:/etc# mfsscadmin create -K F scratch -M /moosefs/ +storage class make scratch: ok +root@octopus04:/moosefs# mfsfileinfo /moosefs/tmp/README +/moosefs/tmp/README: + chunk 0: 0000000000022E0A_00000001 / (id:142858 ver:1) ; mtime:1767877068 (2026-01-08 12:57:48) + copy 1: 172.23.17.254:9524 ; status:VALID + copy 2: 172.23.23.246:9524 ; status:VALID +root@octopus04:/moosefs# mfssetsclass scratch -r tmp +tmp: + inodes with storage class changed: 2 + inodes with storage class not changed: 0 + inodes with permission denied: 0 +root@octopus04:/moosefs# mfsfileinfo /moosefs/tmp/README +/moosefs/tmp/README: + chunk 0: 0000000000022E0A_00000001 / (id:142858 ver:1) ; mtime:1767877068 (2026-01-08 12:57:48) + copy 1: 172.23.23.246:9524 ; status:VALID +``` + +``` +mfsscadmin create -K H raid5 -M /moosefs/ +``` |