DokuWiki

User Tools

Site Tools

Trace:
cluster:151

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Next revision Both sides next revision
cluster:151 [2016/11/04 15:04]
hmeij07 		cluster:151 [2016/11/10 19:36]
hmeij07 [Resync Data]
Line 24: Line 24:
  
   * ''cottontail:/usr/local/bin/beegfs-admin-gui''   * ''cottontail:/usr/local/bin/beegfs-admin-gui''
 +
 +==== Resync Data ====
 +
 +Testing out fail over and deletion of data on secondary then a full resync process:
 +
 + 
 +  * started a full --resyncstorage --mirrorgroupid=101 --timestamp=0
 +  * got --getentryinfo EntryID for a file in my /mnt/beegfs/home/path/to/file and did the same for the directory the file was located in
 +  * did a cat /mnt.beegfs/home/path/to/file on a client (just fine)
 +  * brought primary storage down
 +  * redid the cat above (it hangs for a couple of minutes, then displays the file content)
 +  * while primary down, I ran rm -rf   /mnt/beegfs/home/path/to/ removing directory holding file
 +  * a cat now generates the expected file not found error
 +  * brought up primary and started a full --resyncstorage --mirrorgroupid=101 --timestamp=0
 +  * the nr of files and dirs discovered is as expected lower by the correct values
 +  * when I now search for the EntryIDs obtained before they are gone from /data/beegfs-storage (as expected).
 +
 +Nice that it works.
 +
 +So you can full storage content mirror. You'll still need rsnapshots to recover lost data or point in time restores.
  
 ==== Mirror Data ==== ==== Mirror Data ====
Line 125: Line 145:
     * so the important line that tells you that this file is mirrored is "Type: Buddy Mirror".     * so the important line that tells you that this file is mirrored is "Type: Buddy Mirror".
   * "desired: 2" means you would like to stripe across 2 buddy groups. (targets are buddygroups here)   * "desired: 2" means you would like to stripe across 2 buddy groups. (targets are buddygroups here)
 +
 +Another note: I changed paths for mirrormd and buddymirror to ''/mnt/beegfs/home'' and now I see connectivity data for meta node cottontail2 which was previously missing because I working on sub directory level.
 +
 +<code>
 +
 +[root@cottontail2 ~]# beegfs-net
 +meta_nodes
 +=============
 +cottontail2 [ID: 250]
 +   Connections: RDMA: 1 (10.11.103.250:8005);
 +
 +[root@cottontail2 ~]# beegfs-ctl --listnodes --nodetype=meta --details
 +cottontail2 [ID: 250]
 +   Ports: UDP: 8005; TCP: 8005
 +   Interfaces: ib1(RDMA) ib1(TCP) eth1(TCP) eth0(TCP)
 +               ^^^
 +
 +</code>
  
 ==== Quota ==== ==== Quota ====
cluster/151.txt ยท Last modified: 2016/12/06 20:14 by hmeij07

Page Tools

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
CC Attribution-Share Alike 4.0 International Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki