fs-stress tool

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

Synopsis

cassandra.yaml

The location of the cassandra.yaml file depends on the type of installation:
Package installations /etc/dse/cassandra/cassandra.yaml
Tarball installations installation_location/resources/cassandra/conf/cassandra.yaml
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
Table 1. Legend
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.