[SCore-users] Problem starting multi-user

[Atsushi HORI]

Hi.

>Hi we had a problem with one of our cluster nodes (comp3) so commented it out
>of scorehosts.db.
>
>I have restarted scoreboard and msgbserv.
>
>Now when starting scored with sc_watch I get the following error: 

SCore-D remebers the cluster configuration of the last time and also 
remembers the jobs running. Here "remeber" means some info is stored 
into disk. When SCore-D is restarted, then it checks the file with 
the current cluster configuration, and when it discovers some 
difference, then it will not to start. 

When you want to start SCore-D with different clsuter ocnfiguration, 
you must specify "session No." or reset the previous session with 
"-reset" option.

The session was introduced so that aborted job(s) in the previous 
session can be preserved with the different configuration. Think 
about the case two hosts crash while some user jobs are running. The 
jobs only restarted from their checkpoint when the two hosts are 
fixed, but it may takes some time. And you want to continue SCore-D 
running on the shrinked cluster (beacuse two hosts are missing). 

This can be done by specifying the different session id. When the two 
hosts are fixed, then stop SCore-D and restart SCore-D with the 
original session no. 

The default session no. is 0.