set_peer_namespaces
Definition
Sets all replicable namespaces for the specified replication relationship (peer). Remember the following restrictions:
-
The
REPLICATE_ALLflag should have thefalsevalue in the replication peer configuration (see set_peer_replicate_all). -
Setting a namespace means that all tables in this namespace with the
REPLICATION_SCOPEflag != 0 are replicated. If the peer configuration already contains some table (added via append_peer_tableCFs or set_peer_tableCFs), then setting its namespace with this command is not allowed. -
If you need to clear included namespaces, run the current command with an empty array as the second input parameter. You can also use the remove_peer_namespaces command.
|
CAUTION
This command removes the previously defined namespaces from the replication peer configuration (unlike append_peer_namespaces).
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Usage
set_peer_namespaces '<peer_id>', <namespaces_array[]>| Parameter | Description |
|---|---|
peer_id |
A unique identifier of the replication peer. Should not contain hyphens |
namespaces_array |
An array of strings specified in the format |
Examples
Successful namespace setting
hbase(main):054:0> list_peers PEER_ID CLUSTER_KEY ENDPOINT_CLASSNAME STATE REPLICATE_ALL NAMESPACES TABLE_CFS BANDWIDTH 1 serov-adh-1.ru-central1.internal,serov-adh-2.ru-central1.internal,serov-adh-3.ru-central1.internal:2181:/hbase ENABLED false ns1;ns2 default.articles;default.table10;default.temp1:cf1 0 1 row(s) Took 0.0090 seconds => #<Java::JavaUtil::ArrayList:0x51c008fd> hbase(main):055:0> set_peer_namespaces '1', ['ns1'] Took 0.0130 seconds hbase(main):056:0> list_peers PEER_ID CLUSTER_KEY ENDPOINT_CLASSNAME STATE REPLICATE_ALL NAMESPACES TABLE_CFS BANDWIDTH 1 serov-adh-1.ru-central1.internal,serov-adh-2.ru-central1.internal,serov-adh-3.ru-central1.internal:2181:/hbase ENABLED false ns1 default.articles;default.table10;default.temp1:cf1 0 1 row(s) Took 0.0084 seconds => #<Java::JavaUtil::ArrayList:0x3c98981e>
Unsuccessful namespace setting
hbase(main):051:0> list_peers
PEER_ID CLUSTER_KEY ENDPOINT_CLASSNAME STATE REPLICATE_ALL NAMESPACES TABLE_CFS BANDWIDTH
1 serov-adh-1.ru-central1.internal,serov-adh-2.ru-central1.internal,serov-adh-3.ru-central1.internal:2181:/hbase DISABLED false ns1 default.articles 0
1 row(s)
Took 0.0081 seconds
=> #<Java::JavaUtil::ArrayList:0x126af200>
hbase(main):052:0> set_peer_namespaces '1', ['default']
ERROR: java.io.IOException: Table-cfs articles is conflict with namespaces default in peer config
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:472)
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:130)
at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
Caused by: org.apache.hadoop.hbase.replication.ReplicationException: Table-cfs articles is conflict with namespaces default in peer config
at org.apache.hadoop.hbase.master.replication.ReplicationManager.checkNamespacesAndTableCfsConfigConflict(ReplicationManager.java:181)
at org.apache.hadoop.hbase.master.replication.ReplicationManager.checkPeerConfig(ReplicationManager.java:148)
at org.apache.hadoop.hbase.master.replication.ReplicationManager.updatePeerConfig(ReplicationManager.java:103)
at org.apache.hadoop.hbase.master.HMaster.updateReplicationPeerConfig(HMaster.java:3535)
at org.apache.hadoop.hbase.master.MasterRpcServices.updateReplicationPeerConfig(MasterRpcServices.java:1943)
at org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProtos$MasterService$2.callBlockingMethod(MasterProtos.java)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
... 3 more
Set the replicable namespaces config for the specified peer.
1. The replicate_all flag need to be false when set the replicable namespaces.
2. Set a namespace in the peer config means that all tables in this namespace
will be replicated to the peer cluster. If peer config already has a table,
then not allow set this table's namespace to the peer config.
Examples:
# set namespaces config is null, then the table-cfs config decide
# which table to be replicated.
hbase> set_peer_namespaces '1', []
# set namespaces to be replicable for a peer.
# set a namespace in the peer config means that all tables in this
# namespace (with replication_scope != 0 ) will be replicated.
hbase> set_peer_namespaces '2', ["ns1", "ns2"]
Took 8.1730 seconds