<xreflinkend="pbk-merge"/>,

<xreflinkend="pbk-delete"/>,

<xreflinkend="pbk-catchup"/>,

<xreflinkend="pbk-checkdb"/> and

<xreflinkend="pbk-checkdb"/>, and

<xreflinkend="pbk-validate"/> processes can be

executed on several parallel threads. This can significantly

speed up <application>pg_probackup</application> operation given enough resources (CPU

the <xreflinkend="pbk-catchup"/> command as follows:

</para>

<programlisting>

pg_probackup catchup -b <replaceable>catchup-mode</replaceable> --source-pgdata=<replaceable>path_to_pgdata_on_remote_server</replaceable> --destination-pgdata=<replaceable>path_to_local_dir</replaceable> --stream [<replaceable>connection_options</replaceable>] [<replaceable>remote_options</replaceable>]

pg_probackup catchup -b <replaceable>catchup_mode</replaceable> --source-pgdata=<replaceable>path_to_pgdata_on_remote_server</replaceable> --destination-pgdata=<replaceable>path_to_local_dir</replaceable> --stream [<replaceable>connection_options</replaceable>] [<replaceable>remote_options</replaceable>]

</programlisting>

<para>

Where <replaceable>catchup_mode</replaceable> can take one of the

a different directory, additionally specify the <option>--tablespace-mapping</option>

option:

<programlisting>

pg_probackup catchup -b <replaceable>catchup-mode</replaceable> --source-pgdata=<replaceable>path_to_pgdata_on_remote_server</replaceable> --destination-pgdata=<replaceable>path_to_local_dir</replaceable> --stream --tablespace-mapping=<replaceable>OLDDIR</replaceable>=<replaceable>NEWDIR</replaceable>

pg_probackup catchup -b <replaceable>catchup_mode</replaceable> --source-pgdata=<replaceable>path_to_pgdata_on_remote_server</replaceable> --destination-pgdata=<replaceable>path_to_local_dir</replaceable> --stream --tablespace-mapping=<replaceable>OLDDIR</replaceable>=<replaceable>NEWDIR</replaceable>

</programlisting>

To run the <command>catchup</command> command on parallel threads, specify the number

of threads with the <option>--threads</option> option:

<programlisting>

pg_probackup catchup -b <replaceable>catchup-mode</replaceable> --source-pgdata=<replaceable>path_to_pgdata_on_remote_server</replaceable> --destination-pgdata=<replaceable>path_to_local_dir</replaceable> --stream --threads=<replaceable>num_threads</replaceable>

pg_probackup catchup -b <replaceable>catchup_mode</replaceable> --source-pgdata=<replaceable>path_to_pgdata_on_remote_server</replaceable> --destination-pgdata=<replaceable>path_to_local_dir</replaceable> --stream --threads=<replaceable>num_threads</replaceable>

</programlisting>

</para>

<para>

<para>

For details, see the sections

<linklinkend="pbk-deleting-backups">Deleting Backups</link>,

<linklinkend="pbk-retention-opts">Retention Options</link> and

<linklinkend="pbk-retention-opts">Retention Options</link>, and

<linklinkend="pbk-configuring-retention-policy">Configuring

Retention Policy</link>.

</para>