dse nodesync

The NodeSync service continuous background repair is enabled on a per table basis.

Modifies CQL nodesync property on one or more tables, enables nodesync tracing and monitoring.

Tables with NodeSync enabled will be skipped for repair operations run against all or specific keyspaces. For individual tables, running the repair command will be rejected when NodeSync is enabled.

Synopsis

[dse] nodesync
[(-ca cql_Authprovider | --cql-auth-provider <cql_Authprovider>)]
[(-cp <cql_password> | --cql-password <cql_password>)]
[(-cs | --cql-ssl)]
[(-cu <cql_username> | --cql-username <cql_username>)]
[(-h <cql_host> | --host <cql_host>)]
[help]
[(-jp <jmx_password> | --jmx-password <jmx_password>)]
[(-jpf <jmx_password_file> | --jmx-password-file <jmx_password_file>)]
[(-js | --jmx-ssl)]
[(-ju <jmx_username> | --jmx-username <jmx_username>)]
[(-p <cql_port> | --port <cql_port> )]
subcommand [options]

Syntax conventions Description

Syntax conventions	Description
UPPERCASE	Literal keyword.
Lowercase	Not literal.
<`Italics>`	Variable value. Replace with a valid option or user-defined value.
`[ ]`	Optional. Square brackets ( `[ ]` ) surround optional command arguments. Do not type the square brackets.
`( )`	Group. Parentheses ( `( )` ) identify a group to choose from. Do not type the parentheses.
`\|`	Or. A vertical bar ( `\|` ) separates alternative elements. Type any one of the elements. Do not type the vertical bar.
`...`	Repeatable. An ellipsis ( `...` ) indicates that you can repeat the syntax element as often as required.
`'<Literal string>'`	Single quotation ( `'` ) marks must surround literal strings in CQL statements. Use single quotation marks to preserve upper case.
`{ <key>:<value> }`	Map collection. Braces ( `{ }` ) enclose map collections or key value pairs. A colon separates the key and the value.
`<<datatype1>,<datatype2>>`	Set, list, map, or tuple. Angle brackets ( `< >` ) enclose data types in a set, list, map, or tuple. Separate the data types with a comma.
`cql_statement;`	End CQL statement. A semicolon ( `;` ) terminates all CQL statements.
`[ -- ]`	Separate the command line options from the command arguments with two hyphens ( `--` ). This syntax is useful when arguments might be mistaken for command line options.
`' <<schema> ... </schema> >'`	Search CQL only: Single quotation marks ( `'` ) surround an entire XML schema declaration.
`@<xml_entity>='<xml_entity_type>'`	Search CQL only: Identify the entity and literal value to overwrite the XML element in the schema and solrconfig files.

UPPERCASE

Literal keyword.

Lowercase

Not literal.

<`Italics>`

Variable value. Replace with a valid option or user-defined value.

[ ]

Optional. Square brackets ( [ ] ) surround optional command arguments. Do not type the square brackets.

( )

Group. Parentheses ( ( ) ) identify a group to choose from. Do not type the parentheses.

|

Or. A vertical bar ( | ) separates alternative elements. Type any one of the elements. Do not type the vertical bar.

...

Repeatable. An ellipsis ( ... ) indicates that you can repeat the syntax element as often as required.

'<Literal string>'

Single quotation ( ' ) marks must surround literal strings in CQL statements. Use single quotation marks to preserve upper case.

{ <key>:<value> }

Map collection. Braces ( { } ) enclose map collections or key value pairs. A colon separates the key and the value.

<<datatype1>,<datatype2>>

Set, list, map, or tuple. Angle brackets ( < > ) enclose data types in a set, list, map, or tuple. Separate the data types with a comma.

cql_statement;

End CQL statement. A semicolon ( ; ) terminates all CQL statements.

[ -- ]

Separate the command line options from the command arguments with two hyphens ( -- ). This syntax is useful when arguments might be mistaken for command line options.

' <<schema> ... </schema> >'

Search CQL only: Single quotation marks ( ' ) surround an entire XML schema declaration.

@<xml_entity>='<xml_entity_type>'

Search CQL only: Identify the entity and literal value to overwrite the XML element in the schema and solrconfig files.

Main options

The following options apply to all nodesync commands.

-ca, --cql-auth-provider cql_Authprovider: CQL auth provider class name.

-cp, --cql-password cql_password: CQL password.

-cs | --cql-ssl: Use SSL for CQL connection.

-cu, --cql-username cql_username: CQL username.

-h, --host cql_host: Connect to the specified remote CQL host.

help: Displays options and usage instructions. Use nodesync help subcommand for more information on a specific command.

-jp, --jmx-password jmx_password: JMX password.

-jpf, --jmx-password-file jmx_password_file: Path to JMX password file.

-js | --jmx-ssl: Use SSL for JMX.
-ju, --jmx-username jmx_username: JMX username.

-p, --port cql_port: Connection port for CQL.

-k, --keyspace keyspace_name

Specify a default keyspace for unqualified table names or wildcards in the table_list.

Successfully run nodesync disable and nodesync enable commands on alterable keyspaces; system_distributed keyspace or a user-created keyspace. An error results when attempting to run these commands on an unalterable keyspace such as system_auth.

Success example:

nodesync disable -v -k system_distributed "*"

Nodesync disabled for system_distributed.nodesync_status
Nodesync disabled for system_distributed.backups
...
Nodesync disabled for system_distributed.repair_history

Error example:

nodesync disable -v -k system_auth "*"

Error: Keyspace [system_auth] is not alterable.

Use a CQL command to enable or disable nodesync for unalterable keyspaces such as a system_* keyspace.

Example:

ALTER TABLE system_auth.roles WITH nodesync = {'enabled': 'false'};

--quiet: Suppress warning and error messages.

-v | --verbose: Display all messages.
--: Separates table list from the rest of the command.

table_list

Target tables using any of the following methods:

Qualified table names: keyspace_name.table_name. For example, cycling.comments.
Default keyspace -k option with:
- Unqualified table names. For example -k cycling cyclist_alt_stats comments cyclist_races.
- An asterisk in double quotes to select all tables. For example, -k cycling "*".

-n, --nodes node_list: Only disable tracing on the listed nodes. Specify the host name or IP address in a comma separated list.

Default: all nodes.

--quiet: Suppresses messages from displaying on stdout.

Example

Display top-level help

nodesync help

usage: nodesync [(-js | --jmx-ssl)] [(-p <cqlPort> | --port <cqlPort>)]
  [(-cu <cqlUsername> | --cql-username <cqlUsername>)]
  [(-jp <jmxPassword> | --jmx-password <jmxPassword>)]
  [(-jpf <jmxPasswordFile> | --jmx-password-file <jmxPasswordFile>)]
  [(-ca <cqlAuthProvider> | --cql-auth-provider <cqlAuthProvider>)]
  [(-ju <jmxUsername> | --jmx-username <jmxUsername>)]
  [(-cp <cqlPassword> | --cql-password <cqlPassword>)] [(-cs | --cql-ssl)]
  [(-h <cqlHost> | --host <cqlHost>)] <command> [<args>]

The most commonly used nodesync commands are:
  disable      Disable nodesync on the specified tables
  enable       Enable nodesync on the specified tables
  help         Display help information
  tracing      Enable/disable tracing for NodeSync
  validation   Monitor/manage user-triggered validations

See 'nodesync help <command>' for more information on a specific command.

For more command-specific help, see nodesync help.

nodesync disable: Disables NodeSync on one or more target tables.
nodesync enable: Sets nodesync to enabled to true on target tables.
nodesync help: Displays usage information for nodesync commands.
nodesync tracing: Captures detailed transactional NodeSync operations.
nodesync validation: Monitors and manages user-triggered validations.

dse nodesync

Synopsis

Main options

Example

Display top-level help

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