ClickHouse/tests/integration/test_cluster_copier/task0_description.xml

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<?xml version="1.0"?>
<yandex>
<!-- How many simualteneous workers are posssible -->
<max_workers>3</max_workers>
<!-- Common setting for pull and push operations -->
<settings>
<connect_timeout>1</connect_timeout>
</settings>
<!-- Setting used to fetch data -->
<settings_pull>
<max_rows_in_distinct>0</max_rows_in_distinct>
</settings_pull>
<!-- Setting used to insert data -->
<settings_push>
</settings_push>
<!-- Tasks -->
<tables>
<hits>
<cluster_pull>cluster0</cluster_pull>
<database_pull>default</database_pull>
<table_pull>hits</table_pull>
<cluster_push>cluster1</cluster_push>
<database_push>default</database_push>
<table_push>hits</table_push>
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<number_of_splits>2</number_of_splits>
<enabled_partitions>3 4 5 6 1 2 0 </enabled_partitions>
<!-- Engine of destination tables -->
<engine>ENGINE=ReplicatedMergeTree PARTITION BY d % 3 ORDER BY (d, sipHash64(d)) SAMPLE BY sipHash64(d) SETTINGS index_granularity = 16</engine>
<!-- Which sarding key to use while copying -->
<sharding_key>d + 1</sharding_key>
<!-- Optional expression that filter copying data -->
<where_condition>d - d = 0</where_condition>
</hits>
</tables>
<!-- Configuration of clusters -->
<remote_servers>
<cluster0>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>s0_0_0</host>
<port>9000</port>
</replica>
<replica>
<host>s0_0_1</host>
<port>9000</port>
</replica>
</shard>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>s0_1_0</host>
<port>9000</port>
</replica>
</shard>
</cluster0>
<cluster1>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>s1_0_0</host>
<port>9000</port>
</replica>
<replica>
<host>s1_0_1</host>
<port>9000</port>
</replica>
</shard>
<shard>
<internal_replication>true</internal_replication>
<replica>
<host>s1_1_0</host>
<port>9000</port>
</replica>
<replica>
<!-- Died replica -->
<host>255.255.255.255</host>
<port>9000</port>
</replica>
</shard>
</cluster1>
</remote_servers>
</yandex>