| Option | --policy-relay-from-slave | |
| Config File Options | policy-relay-from-slave | |
| Description | Cross-site replicators within a Composite Active/Active deployment can be configured to point to Replicas by default, and to prefer Replicas over Primaries during operation. In a standard deployment, cross-site replicators work via Primaries at each cluster site to read the remote information. To configure the service to use Replicas in preference to Primaries, use the --policy-relay-from-slave=true option to tpm. Both Primaries and Replicas remain in the list of possible hosts, so if no Replicas are available during a switch or failover event, then a Primary will be used. | |
| Value Type | boolean | |
| Default | false | |
| Valid Values | false | |
| true | ||
Cross-site replicators within a Composite Active/Active deployment can be configured to point to Replicas by default, and to prefer Replicas over Primaries during operation. In a standard deployment, cross-site replicators work via Primaries at each cluster site to read the remote information. To configure the service to use Replicas in preference to Primaries, use the --policy-relay-from-slave=true option to tpm. Both Primaries and Replicas remain in the list of possible hosts, so if no Replicas are available during a switch or failover event, then a Primary will be used.
| Option | --preferred-path | |
| Config File Options | preferred-path | |
| Description | Additional command path | |
| Value Type | filename | |
Specifies one or more additional directories that will be added
before the current PATH environment variable when
external commands are run from within the backup environment.
This affects all external tools used by Tungsten Cluster,
including MySQL, Ruby, Java, and backup/restore tools such as
Percona Xtrabackup.
One or more paths can be specified by separating each directory with a colon. For example:
shell> tpm ... --preferred-path=/usr/local/bin:/opt/bin:/opt/percona/bin
The --preferred-path
information propagated to all remote servers within the
tpm configuration. However, if the staging
server is one of the servers to which you are deploying, the
PATH must be manually updated.
| Option | --prefetch-enabled | |
| Config File Options | prefetch-enabled | |
| Description | Should the replicator service be setup as a prefetch applier | |
| Value Type | boolean | |
| Option | --prefetch-max-time-ahead | |
| Config File Options | prefetch-max-time-ahead | |
| Description | Maximum number of seconds that the prefetch applier can get in front of the standard applier | |
| Value Type | numeric | |
| Option | --prefetch-min-time-ahead | |
| Config File Options | prefetch-min-time-ahead | |
| Description | Minimum number of seconds that the prefetch applier must be in front of the standard applier | |
| Value Type | numeric | |
| Option | --prefetch-schema | |
| Config File Options | prefetch-schema | |
| Description | Schema to watch for timing prefetch progress | |
| Value Type | string | |
| Default | tungsten_ | |
| Option | --prefetch-sleep-time | |
| Config File Options | prefetch-sleep-time | |
| Description | How long to wait when the prefetch applier gets too far ahead | |
| Value Type | string | |
| Option | --privileged-master | |
| Config File Options | privileged-master | |
| Description | Does the login for the Primary database service have superuser privileges | |
| Value Type | boolean | |
| Option | --privileged-slave | |
| Config File Options | privileged-slave | |
| Description | Does the login for the Replica database service have superuser privileges | |
| Value Type | booleam | |
| Option | --profile-script | |
| Config File Options | profile-script | |
| Description | Append commands to include env.sh in this profile script | |
| Value Type | string | |
| Option | --protect-configuration-files | |
| Config File Options | protect-configuration-files | |
| Description | When enabled, configuration files are protected to be only readable and updatable by the configured user | |
| Value Type | string | |
| Valid Values | false | Make configuration files readable by any user |
| true | ||
When enabled (default), the configuration that contain user, password and other information are configured so that they are only readable by the configured user. For example:
shell> ls -al /opt/continuent/tungsten/tungsten-replicator/conf/
total 148
drwxr-xr-x 2 tungsten mysql 4096 May 14 14:32 ./
drwxr-xr-x 11 tungsten mysql 4096 May 14 14:32 ../
-rw-r--r-- 1 tungsten mysql 33 May 14 14:32 dynamic-alpha.role
-rw-r--r-- 1 tungsten mysql 5059 May 14 14:32 log4j.properties
-rw-r--r-- 1 tungsten mysql 3488 May 14 14:32 log4j-thl.properties
-rw-r--r-- 1 tungsten mysql 972 May 14 14:32 mysql-java-charsets.properties
-rw-r--r-- 1 tungsten mysql 420 May 14 14:32 replicator.service.properties
-rw-r----- 1 tungsten mysql 1590 May 14 14:35 services.properties
-rw-r----- 1 tungsten mysql 1590 May 14 14:35 .services.properties.orig
-rw-r--r-- 1 tungsten mysql 896 May 14 14:32 shard.list
-rw-r----- 1 tungsten mysql 43842 May 14 14:35 static-alpha.properties
-rw-r----- 1 tungsten mysql 43842 May 14 14:35 .static-alpha.properties.orig
-rw-r----- 1 tungsten mysql 5667 May 14 14:35 wrapper.conf
-rw-r----- 1 tungsten mysql 5667 May 14 14:35 .wrapper.conf.origWhen disabled, the files are readable by all users:
shell> ll /opt/continuent/tungsten/tungsten-replicator/conf/
total 148
drwxr-xr-x 2 tungsten mysql 4096 May 14 14:32 ./
drwxr-xr-x 11 tungsten mysql 4096 May 14 14:32 ../
-rw-r--r-- 1 tungsten mysql 33 May 14 14:32 dynamic-alpha.role
-rw-r--r-- 1 tungsten mysql 5059 May 14 14:32 log4j.properties
-rw-r--r-- 1 tungsten mysql 3488 May 14 14:32 log4j-thl.properties
-rw-r--r-- 1 tungsten mysql 972 May 14 14:32 mysql-java-charsets.properties
-rw-r--r-- 1 tungsten mysql 420 May 14 14:32 replicator.service.properties
-rw-r--r-- 1 tungsten mysql 1590 May 14 14:32 services.properties
-rw-r--r-- 1 tungsten mysql 1590 May 14 14:32 .services.properties.orig
-rw-r--r-- 1 tungsten mysql 896 May 14 14:32 shard.list
-rw-r--r-- 1 tungsten mysql 43842 May 14 14:32 static-alpha.properties
-rw-r--r-- 1 tungsten mysql 43842 May 14 14:32 .static-alpha.properties.orig
-rw-r--r-- 1 tungsten mysql 5667 May 14 14:32 wrapper.conf
-rw-r--r-- 1 tungsten mysql 5667 May 14 14:32 .wrapper.conf.orig