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110 lines
4.6 KiB
XML
110 lines
4.6 KiB
XML
<clickhouse>
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<remote_servers>
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<source_cluster>
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<shard>
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<internal_replication>false</internal_replication>
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<replica>
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<host>s0_0_0</host>
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<port>9000</port>
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</replica>
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</shard>
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</source_cluster>
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<destination_cluster>
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<shard>
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<internal_replication>false</internal_replication>
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<replica>
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<host>s1_1_0</host>
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<port>9000</port>
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</replica>
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</shard>
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</destination_cluster>
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</remote_servers>
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<!-- How many simultaneously active workers are possible. If you run more workers superfluous workers will sleep. -->
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<max_workers>2</max_workers>
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<!-- Setting used to fetch (pull) data from source cluster tables -->
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<settings_pull>
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<readonly>1</readonly>
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</settings_pull>
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<!-- Setting used to insert (push) data to destination cluster tables -->
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<settings_push>
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<readonly>0</readonly>
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</settings_push>
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<!-- Common setting for fetch (pull) and insert (push) operations. Also, copier process context uses it.
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They are overlaid by <settings_pull/> and <settings_push/> respectively. -->
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<settings>
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<connect_timeout>3</connect_timeout>
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<!-- Sync insert is set forcibly, leave it here just in case. -->
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<insert_distributed_sync>1</insert_distributed_sync>
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</settings>
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<!-- Copying tasks description.
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You could specify several table task in the same task description (in the same ZooKeeper node), they will be performed
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sequentially.
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-->
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<tables>
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<!-- A table task, copies one table. -->
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<table_hits>
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<!-- Source cluster name (from <remote_servers/> section) and tables in it that should be copied -->
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<cluster_pull>source_cluster</cluster_pull>
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<database_pull>default</database_pull>
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<table_pull>ontime</table_pull>
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<!-- <table_pull>onetime</table_pull> -->
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<!-- Destination cluster name and tables in which the data should be inserted -->
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<cluster_push>destination_cluster</cluster_push>
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<database_push>default</database_push>
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<table_push>ontime22</table_push>
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<!-- <table_pull>onetime</table_pull> -->
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<!-- Engine of destination tables.
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If destination tables have not be created, workers create them using columns definition from source tables and engine
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definition from here.
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NOTE: If the first worker starts insert data and detects that destination partition is not empty then the partition will
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be dropped and refilled, take it into account if you already have some data in destination tables. You could directly
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specify partitions that should be copied in <enabled_partitions/>, they should be in quoted format like partition column of
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system.parts table.
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-->
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<engine>
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ENGINE = MergeTree() PARTITION BY Year ORDER BY (Year, FlightDate) SETTINGS index_granularity=8192
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</engine>
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<!-- Sharding key used to insert data to destination cluster -->
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<sharding_key>jumpConsistentHash(intHash64(Year), 2)</sharding_key>
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<!-- Optional expression that filter data while pull them from source servers -->
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<!-- <where_condition>CounterID != 0</where_condition> -->
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<!-- This section specifies partitions that should be copied, other partition will be ignored.
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Partition names should have the same format as
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partition column of system.parts table (i.e. a quoted text).
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Since partition key of source and destination cluster could be different,
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these partition names specify destination partitions.
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NOTE: In spite of this section is optional (if it is not specified, all partitions will be copied),
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it is strictly recommended to specify them explicitly.
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If you already have some ready partitions on destination cluster they
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will be removed at the start of the copying since they will be interpeted
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as unfinished data from the previous copying!!!
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-->
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<enabled_partitions>
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<partition>2017</partition>
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</enabled_partitions>
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</table_hits>
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<!-- Next table to copy. It is not copied until previous table is copying. -->
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<!-- </table_visits>
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</table_visits>
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-->
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</tables>
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</clickhouse>
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