Offsets Subcommand
Learn how to use the offsets
subcommand of the
srm-client
command line tool.
offsets
subcommand on the target cluster to export the translated offsets
of the source cluster. For
example:srm-control offsets --source [SOURCE_CLUSTER] --target [TARGET_CLUSTER] --group [GROUP1] --export > out.csv
Exported
offsets can then be applied to the consumer groups in the target cluster with the
kafka-consumer-groups
tool. For detailed steps on cluster migration, see
Migrating Consumer Groups Between Clusters.Client Override Options
The offset subcommand supports client override options. Client override
options allow users to temporarily specify or override configuration properties. These
options also enable users to issue srm-control
commands even if the SRM’s
configuration file is not available on the host that the command is being issued from. While
it is possible to specify a range of properties with the client override options, and they
can prove to be a powerful tool in certain scenarios, Cloudera recommends that you use
Cloudera Manager to manage client configuration options.
--bootstrap-servers
: Specifies the bootstraps servers.--props
: Specifies client configuration properties.
A simple example of using client override options is when you want to change the bootstrap server. This can be done in two ways.
--bootstrap-servers
option.
srm-control --bootstrap-servers localhost:9092 offsets --source [SOURCE_CLUSTER] --group [GROUP] --export > out.csv
--props
option together with the
bootstrap.servers
Kafka property to define the bootstrap server.
srm-control --props bootstrap.servers=localhost:9092 offsets --source [SOURCE_CLUSTER] --group [GROUP] --export > out.csv