The tpm validate-update command checks whether the configured hosts are ready to be updated. By checking the prerequisites and configuration of the dataserver and hosts, the same checks as made by tpm during a tpm install operation. Since there may have been changes to the requirements or required configuration, this check can be useful before attempting an update.

Using tpm validate-update is different from tpm validate in that it checks the environment based on the updated configuration, including the status of any existing services.

shell> {STAGING_DIR}/tools/tpm validate-update
....
WARN  >> host1 >> The process limit is set to 7812, we suggest a value»
    of at least 8096. Add 'tungsten       -    nproc  8096' to your »
    /etc/security/limits.conf and restart Tungsten processes. (ProcessLimitCheck)

WARN  >> host2 >> The process limit is set to 7812, we suggest a value»
     of at least 8096. Add 'tungsten       -    nproc  8096' to your »
    /etc/security/limits.conf and restart Tungsten processes. (ProcessLimitCheck)

WARN  >> host3 >> The process limit is set to 7812, we suggest a value »
    of at least 8096. Add 'tungsten       -    nproc  8096' to your »
    /etc/security/limits.conf and restart Tungsten processes. (ProcessLimitCheck)
.WARN  >> host3 >> MyISAM tables exist within this instance - These »
    tables are not crash safe and may lead to data loss in a failover »
    (MySQLMyISAMCheck)


NOTE  >> Command successfully completed

Any problems noted should be addressed before you perform the update using tpm update.