Retrieve metadata details

This page describes Aerospike Quick Look (AQL) commands to list namespaces, sets, bins, and record details.

SHOW NAMESPACES

To list namespaces, enter the following command:

SHOW NAMESPACES

Example: List namespaces

show namespaces
+------------+
| namespaces |
+------------+
| "test"     |
| "bar"      |
+------------+
2 rows in set (0.001 secs)

SHOW SETS

To list sets, enter the following command:

SHOW SETS

Example: List sets

show sets
+---------+-----------+-----------+------------+-----------+---------+
| ns_name | set_name  | n_objects | stop-write | evict-hwm | delete  |
+---------+-----------+-----------+------------+-----------+---------+
| "test"  | "newtest" | 11        | 0          | 0         | "false" |
| "test"  | "users"   | 1         | 0          | 0         | "false" |
+---------+-----------+-----------+------------+-----------+---------+
2 rows in set (0.001 secs)

SHOW BINS

To list bins, enter the following command:

SHOW BINS

Example: List bins

show bins
+-----------+-------+-------+-----------+
| namespace | count | quota | bin       |
+-----------+-------+-------+-----------+
| "test"    | 5     | 65535 | "b"       |
| "test"    | 5     | 65535 | "c"       |
| "test"    | 5     | 65535 | "a"       |
| "test"    | 5     | 65535 | "SUCCESS" |
| "test"    | 5     | 65535 | "name"    |
+-----------+-------+-------+-----------+
5 rows in set (0.000 secs)

EXPLAIN SELECT

To display details for a single record, enter the following command:

explain select * from <ns>.<set> where PK=<primary key value>

Note

explain select is available in Aerospike Tools package 3.6.1 and later.

Example: List record details

explain select * from test.uqr where PK=1
[
{
"SET": "uqr",
"DIGEST": "42 7A 64 AE 7B 80 EE 02 3D B8 E9 00 8A F3 FF B0 7F DA EB 58",
"NAMESPACE": "test",
"PARTITION": 2626,
"STATUS": 2,
"UDF": "FALSE",
"KEY_TYPE": "STRING",
"TIMEOUT": 1000,
"NODE": "1771FE6C15290C00",
"POLICY": "AS_POLICY_REPLICA_MASTER",
"KEY_POLICY": "AS_POLICY_KEY_SEND"
}
]

The command contains the following arguments:

• SET : Name of the set for the record.
• DIGEST : Digest for the record.
• NAMESPACE : Namespace for the record.
• PARTITION : Partition where the record lives. The partition value is between 1 and 4095.
• STATUS : Status of the operation. It is the status code returned by the client for the record. For example, 0 is AEROSPIKE_OK and 2 is AEROSPIKE_ERR_RECORD_NOT_FOUND. See the list of generic error codes in C - Error Codes.
• KEY_TYPE : Type of the key (string/numeric etc) that was sent to the server.
• TIMEOUT : Timeout value for the AQL command.
• NODE : ID of the node where the master record currently lives. The node ID might change during migrations.
• POLICY : Replica read policy that the client can set when reading the record. Two possible values are:
  
  • AS_POLICY_REPLICA_MASTER (which is by default) to set the reads to go only to its master copy and,
    
  • AS_POLICY_REPLICA_ANY to read in a round-robin operation on all its replica copies. Set the policy to AS_POLICY_REPLICA_ANY by executing set replica_any true in AQL.
• KEY POLICY : Indicates whether the client sent the key and digest to the server or just the digest. Two possible values are:
  
  • AS_POLICY_KEY_SEND : If the key was sent along with the digest; and
    
  • AS_POLICY_KEY_DIGEST : If only the digest was sent.