nodetool sequence
Sequentially run multiple nodetool commands from a file, resource, or standard input (StdIn) to reduce overhead. This command is faster than running nodetool commands individually from a shell script because the JVM doesn’t have to restart for each command.
Synopsis
nodetool [<connection_options>] sequence
[--failonerror] [-i <input> [<input> ...]] [--stoponerror] [--]
[<command_name> [ : <command_name> : ...]]
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. |
|
A pipe separates alternative elements. Type any one of the elements. Do not type the pipe. |
|
Indicates that you can repeat the syntax element as often as required. |
|
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 |
|
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.
- command_name
-
Commands to execute. Separate individual commands using a colon surrounded by spaces (` : `).
- --failonerror
-
Set this option to true to return an error exit code if a child command fails. By default, an error exit code is not returned if one or more child commands fail.
- -i, --input input
-
The input to run the command.
- --stoponerror
-
Set to true to stop command on error. Default is if one child command fails, the sequence command continues with remaining commands.
Examples
Run commands on the command line
nodetool sequence info : gettimeout read : gettimeout write : status
Each command in the file runs sequentially.
################################################################################
# Executing 4 commands:
# info
# gettimeout read
# gettimeout write
# status
################################################################################
# Network interface ens3 (ens3): /fe80:0:0:0:f816:3eff:fe17:a66f%ens3/64 [null], /10.200.182.118/19 [/10.200.191.255]
# Network interface lo (lo): /0:0:0:0:0:0:0:1%lo/128 [null], /127.0.0.1/8 [null]
################################################################################
# Command: info
# Timestamp: August 31, 2018 8:24:46 PM UTC
# Timestamp (local): August 31, 2018 8:24:46 PM UTC
# Timestamp (millis since epoch): 1535747086687
################################################################################
ID : 3b8e8192-c1d3-4b01-a792-9673b4e377c1
Gossip active : true
Native Transport active: true
Load : 625.97 KiB
Generation No : 1532896921
Uptime (seconds) : 2850186
Heap Memory (MB) : 1903.08 / 4012.00
Off Heap Memory (MB) : 0.01
Data Center : SearchGraphAnalytics
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 15972, size 595.42 MiB, capacity 2.79 GiB, 15972 misses, 25462774 requests, 0.999 recent hit rate, 606.208 microseconds miss latency
Percent Repaired : 0.0%
Token : 8242717283351148695
# Command 'info' completed successfully in 331 ms
################################################################################
# Command: gettimeout read
# Timestamp: August 31, 2018 8:24:47 PM UTC
# Timestamp (local): August 31, 2018 8:24:47 PM UTC
# Timestamp (millis since epoch): 1535747087024
################################################################################
Current timeout for type read: 5000 ms
# Command 'gettimeout read' completed successfully in 0 ms
################################################################################
# Command: gettimeout write
# Timestamp: August 31, 2018 8:24:47 PM UTC
# Timestamp (local): August 31, 2018 8:24:47 PM UTC
# Timestamp (millis since epoch): 1535747087025
################################################################################
Current timeout for type write: 2000 ms
# Command 'gettimeout write' completed successfully in 0 ms
################################################################################
# Command: status
# Timestamp: August 31, 2018 8:24:47 PM UTC
# Timestamp (local): August 31, 2018 8:24:47 PM UTC
# Timestamp (millis since epoch): 1535747087026
################################################################################
Datacenter: SearchGraphAnalytics
================================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Owns Host ID Token Rack
UN 127.0.0.1 625.97 KiB ? 3b8e8192-c1d3-4b01-a792-9673b4e377c1 8242717283351148695 rack1
NOTE: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless
# Command 'status' completed successfully in 29 ms
################################################################################
# Total duration: 374ms
# Out of 4 commands, 4 completed successfully, 0 failed.
################################################################################