fs-stress tool

The fs-stress tool performs stress testing of the DSE File System (DSEFS) layer.

Synopsis

fs-stress [<options>] <dsefs_directory> <listen_address>

The default IP address is the listen_address property in the cassandra.yaml file. If not using localhost, specify the correct IP address.

fs-stress is located in the tools directory of your installation.

The default location of the tools directory depends on the type of installation:

  • Package installations: /usr/share/dse/tools

  • Tarball installations: <installation_location>/dse/tools

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.

Description

The fs-stress tool performs stress testing of the DSE File System (DSEFS) layer.

Data Description

progress

Total progress of the stress operation.

bytes

Total bytes written/read.

curr rate

Current rate of bytes being written/read per second.

avg rate

Average rate of bytes being written/read per second.

max latency

Maximum latency in milliseconds during the current reporting window.

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