nodetool info
Returns node information, including the token and on disk storage (load) information, times started (generation), uptime in seconds, and heap memory usage.
Synopsis
nodetool [<connection_options>] info
[-T]
Syntax legend
| Syntax conventions | Description |
|---|---|
Italic, bold, or |
Syntax diagrams and code samples use one or more of these styles to mark placeholders for variable values. Replace placeholders with a valid option or your own user-defined value. In CQL statements, angle brackets are required to enclose data types in a set, list, map, or tuple.
Separate the data types with a comma.
For example: In Search CQL statements, angle brackets are used to identify the entity and literal value to overwrite the XML element in the schema and |
|
Square brackets surround optional command arguments. Do not type the square brackets. |
|
Parentheses identify a group to choose from. Do not type the parentheses. |
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A pipe separates alternative elements. Type any one of the elements. Do not type the pipe. |
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Indicates that you can repeat the syntax element as often as required. |
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Single quotation marks must surround literal strings in CQL statements.
Use single quotation marks to preserve upper case.
+
For Search CQL only: Single quotation marks surround an entire XML schema declaration, such as |
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Map collection.
Curly braces enclose maps ( |
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Ends a CQL statement. |
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Separate command line options from command arguments with two hyphens. This syntax is useful when arguments might be mistaken for command line options. |
Options
If an option has a short and long form, both forms are given, separated by a comma.
- -h, --host hostname
-
The hostname or IP address of a remote node or nodes. When omitted, the default is the local machine.
- -p, --port jmx_port
-
The JMX port number.
- -pw, --password jmxpassword
-
The JMX password for authenticating with secure JMX. If a password is not provided, you are prompted to enter one.
- -pwf, --password-file jmx_password_filepath
-
The filepath to the file that stores JMX authentication credentials.
- -u, --username jmx_username
-
The username for authenticating with secure JMX.
- -T, --tokens
-
Show all tokens.
Examples
Print node information with token:
nodetool info -T
Results:
ID : 3b8e8192-c1d3-4b01-a792-9673b4e377c1
Gossip active : true
Native Transport active: true
Load : 255.29 KiB
Generation No : 1532896921
Uptime (seconds) : 1882997
Heap Memory (MB) : 604.32 / 4012.00
Off Heap Memory (MB) : 0.00
Data Center : Search
Rack : rack1
Exceptions : 0
Key Cache : entries 0, size 0 bytes, capacity 100 MiB, 0 hits, 0 requests, NaN recent hit rate, 14400 save period in seconds
Row Cache : entries 0, size 0 bytes, capacity 0 bytes, 0 hits, 0 requests, NaN recent hit rate, 0 save period in seconds
Counter Cache : entries 0, size 0 bytes, capacity 50 MiB, 1 hits, 2 requests, 0.500 recent hit rate, 7200 save period in seconds
Chunk Cache : entries 7871, size 260.79 MiB, capacity 2.79 GiB, 7871 misses, 14839137 requests, 0.999 recent hit rate, 937.529 microseconds miss latency
Percent Repaired : 100.0%
Token : 8242717283351148695