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:
How do I update the password for the replication user in the cluster?
If you need to change the password used by Tungsten Clustering 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.
One of my hosts is regularly a number of seconds behind my other slaves?
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 latency:
Does the replicate filter (i.e. replicate.do and replicate.ignore) address both DML and DDL?
Both filters replicate.do and replicate.ignore will either do or ignore both DML and DDL
DDL is currently ONLY replicated for MySQL to MySQL or Oracle to Oracle topologies, or within MySQL Clusters, although it would be advisable not to use ignore/do filters in a clustered environment where data/structural integrity is key.
With replicate.do, all DML and DDL will be replicated ONLY for any database or table listed as part of the do filter.
With replicate.ignore, all DML and DDL will be replicated except for any database or table listed as part of the ignore filter.
How do you change the replicator heap size after installation?
You can change the configuration by running the following command from the staging directory:
On a Tungsten Replicator slave, how do I set both the local slave THL listener port and the upstream master's THL listener port?