Backup Procedure

[Adam D]

I restored backup id 1 like so;
In /var/lib/mysql-cluster/BACKUP/BACKUP-1/
c1s1# /usr/local/mysql/bin/ndb_restore -n 10 -b 1 -m
c1s1# /usr/local/mysql/bin/ndb_restore -n 10 -b 1 -r
c1s2# /usr/local/mysql/bin/ndb_restore -n 20 -b 1 -r
c1s3# /usr/local/mysql/bin/ndb_restore -n 30 -b 1 -r
c1s4# /usr/local/mysql/bin/ndb_restore -n 40 -b 1 -r

My Node IDs are ndb( 10, 20, 30, 40 ) mgt (100) to keep things clear.

I did that one at a time becuase my cluster config only allowed one extra api connection. Ive since changed this. However after carrying out this on all datanodes The cluster log mentioned

2005-07-15 11:04:28 [MgmSrvr] ALERT -- Node 10: Network partitioning - arbitration required
2005-07-15 11:04:28 [MgmSrvr] INFO -- Node 10: President restarts arbitration thread [state=7]
2005-07-15 11:04:28 [MgmSrvr] ALERT -- Node 10: Arbitration won - positive reply from node 1


Then all the datanodes disconnected. I have no explicit abrbitrators set in my config.
Apon starting them backup without --initial they came up, however stayed on Phase 4 for ages, and nodes '30' and '40' were cranking in Operations for quite some time;

2005-07-15 11:14:22 [MgmSrvr] INFO -- Node 40: Operations=1975
2005-07-15 11:14:22 [MgmSrvr] INFO -- Node 30: Operations=1975
2005-07-15 11:14:22 [MgmSrvr] INFO -- Node 10: Operations=0
2005-07-15 11:14:22 [MgmSrvr] INFO -- Node 20: Operations=0


So my questions are;

1. Is that normal restoration behaviour, and;

2. Does anyone have a list of the Phases and what they do/mean so I can be clearer in the clusters operation.