How do I update the IP address of one or more hosts in the cluster?
To update the IP address used by one or more hosts in your cluster,
you must perform the following steps:
If possible, switch the node into SHUNNED mode.
Reconfigure the IP address on the machine.
Update the hostname lookup, for example, by editing the IP
Restart the networking to reconfigure the service.
On the node that has changed IP address, run:
The above updates the configuration, but does not restart the
individual services, which may still have the old, incorrect, IP
address information for the host cached.
Restart the node services:
On each other node within the cluster:
Update the hostname lookup for the new node, for example, by
updating the IP configuration in
Update the configuration, using tpm:
Restart the services:
How do I update the password for the replication user in the
If you need to change the password used by Continuent Tungsten to connect
to a dataserver and apply changes, the password can be updated first
by changing the information within the your dataserver, and then by
updating the configuration using tpm update. The
new password is not checked until the Tungsten Replicator process is
starting. Changing the password and then updating the configuration
will keep replication from failing.
Within cctrl set the maintenance policy mode:
set policy maintenance
Within MySQL, update the password for the user, allowing the
change to be replicated to the other datasources:
SET PASSWORD FOR tungsten@'%' = PASSWORD('new_pass');
Follow the directions for tpm update to apply
Set the policy mode in cctrl back to
set policy automatic
One of my hosts is regularly a number of seconds behind my other
The most likely culprit for this issue is that the time is different
on the machine in question. If you have ntp or a
similar network time tool installed on your machine, use it to
update the current time across all the hosts
within your deployment:
Once the command has been executed across all the hosts, trying
sending a heartbeat on the master to slaves and checking the
How do you change the replicator heap size after installation?
You can change the configuration by running the following command
from the staging directory:
./tools/tpm --host=host1 --java-mem-size=2048