Server to Server Synchronisation Check
Server to server synchronisation status check ensures that the servers within a given replica ring are communicating correctly. However it does not guarantee that replicas are synchronised, a partition continuity check discussed later is required to verify this.
For Solaris or Linux execute the following commands:
su root
> /var/nds/ndstrace.log (this is the file where the information is saved)
set ndstrace = on
set ndstrace = nodebug
set ndstrace = +sklk (Enables synchronisation messages)
set ndstrace = +sync (Enables inbound synchronisation)
set ndstrace = *h (This initiates a synchronisation heartbeat)
set ndstrace = off (Give enough time to record synchronisation information)
To gather information to check server to server synchronisation use grep on ndstrace.log
grep “All processed = YES” /var/nds/ndstrace.log | wc -l (Will output those servers that are synchronising)
grep “All processed = NO” /var/nds/ndstrace.log | wc -l (Will output those servers that are not synchronising)
NB If you get any “All processed = NO” then investigate further!
Logout of server when finished.
Server to server synchronisation status check ensures that the servers within a given replica ring are communicating correctly. However it does not guarantee that replicas are synchronised, a partition continuity check discussed later is required to verify this.
For Solaris or Linux execute the following commands:
su root
> /var/nds/ndstrace.log (this is the file where the information is saved)
set ndstrace = on
set ndstrace = nodebug
set ndstrace = +sklk (Enables synchronisation messages)
set ndstrace = +sync (Enables inbound synchronisation)
set ndstrace = *h (This initiates a synchronisation heartbeat)
set ndstrace = off (Give enough time to record synchronisation information)
To gather information to check server to server synchronisation use grep on ndstrace.log
grep “All processed = YES” /var/nds/ndstrace.log | wc -l (Will output those servers that are synchronising)
grep “All processed = NO” /var/nds/ndstrace.log | wc -l (Will output those servers that are not synchronising)
NB If you get any “All processed = NO” then investigate further!
Logout of server when finished.
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