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https://issues.apache.org/jira/browse/KUDU-3206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexey Serbin updated KUDU-3206:
--------------------------------
Component/s: tserver
documentation
CLI
> Document the procedure of upgrading tablet server's hardware (including hard
> drives)
> ------------------------------------------------------------------------------------
>
> Key: KUDU-3206
> URL: https://issues.apache.org/jira/browse/KUDU-3206
> Project: Kudu
> Issue Type: Task
> Components: CLI, documentation, tserver
> Reporter: Alexey Serbin
> Priority: Minor
>
> In the fields we saw several cases when people try to update servers in their
> Kudu clusters to support denser storage per node. Two major points specific
> to such cases:
> * The contents is wiped out since the disk drives are among hardware
> components to be replaced
> * The upgraded node is getting back to the cluster under the same IP address
> and using the same DNS name, so it's natural to to have the tablet server to
> run under the same UUID.
> The procedure is to use the functionality provided by {{kudu fs format}} CLI
> utility which can take UUID and the set of data directories as input:
> {noformat}
> Usage: ./bin/kudu fs format [-fs_data_dirs=<dirs>] [-fs_metadata_dir=<dir>]
> [-fs_wal_dir=<dir>] [-uuid=<uuid>]
> Format a new Kudu filesystem
> -fs_data_dirs (Comma-separated list of directories with data blocks. If
> this is not specified, fs_wal_dir will be used as the sole data block
> directory.) type: string default: ""
> -fs_metadata_dir (Directory with metadata. If this is not specified, for
> compatibility with Kudu 1.6 and below, Kudu will check the first entry
> of
> fs_data_dirs for metadata and use it as the metadata directory if any
> exists. If none exists, fs_wal_dir will be used as the metadata
> directory.) type: string default: ""
> -fs_wal_dir (Directory with write-ahead logs. If this is not specified,
> the
> program will not start. May be the same as fs_data_dirs) type: string
> default: ""
> -uuid (The uuid to use in the filesystem. If not provided, one is
> generated) type: string default: ""
> {noformat}
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