sstabledump

Dumps contents of given SSTable to standard output in JSON format.

The output file has a .db extension and is located in the /var/lib/cassandra/data directory.

Synopsis

sstabledump sstable_filepath
[-d] [-e] [-k partition_key]
[-x partition_key]
Syntax conventions
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.

Definition

The short form and long form parameters are comma-separated.

Command arguments

-d

Display a CQL row per line.

-e

Display a list of partition keys.

-k, --key partition_key

Partition keys to include.

-x, --exclude-key partition_key

Partition key to exclude. Ignored if -y option is given.

Examples

Verify DataStax Enterprise is not running

nodetool status
Datacenter: Graph
================================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address        Load       Tokens       Owns    Host ID                               Rack
UN  10.200.177.92  265.04 KiB  1            ?       980cab6a-2e5d-44c6-b897-0733dde580ac  rack1
DN  10.200.177.94  426.21 KiB  1            ?       7ecbbc0c-627d-403e-b8cc-a2daa93d9ad3  rack1

Dump contents of SSTable

Restriction: DataStax Enterprise must be stopped before you run this command.

sstabledump /var/lib/cassandra/data/cycling/birthday_list-f4f24621ce3f11e89d32bdcab3a99c6f/aa-1-bti-Statistics.db
[
  {
    "partition" : {
      "key" : [ "Claudio HEINEN" ],
      "position" : 0
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 90,
        "liveness_info" : { "tstamp" : "2018-10-12T16:58:00.368228Z" },
        "cells" : [
          { "name" : "blist_", "deletion_info" : { "marked_deleted" : "2018-10-12T16:58:00.368227Z", "local_delete_time" : "2018-10-12T16:58:00Z" } },
          { "name" : "blist_", "path" : [ "bday" ], "value" : "27/07/1992" },
          { "name" : "blist_", "path" : [ "blist_age" ], "value" : "23" },
          { "name" : "blist_", "path" : [ "blist_nation" ], "value" : "GERMANY" }
        ]
      }
    ]
  },
  {
    "partition" : {
      "key" : [ "Claudio VANDELLI" ],
      "position" : 91
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 179,
        "liveness_info" : { "tstamp" : "2018-10-12T16:58:00.354443Z" },
        "cells" : [
        { "name" : "blist_", "deletion_info" : { "marked_deleted" : "2018-10-12T16:58:00.354442Z", "local_delete_time" : "2018-10-12T16:58:00Z" } },
        { "name" : "blist_", "path" : [ "bday" ], "value" : "27/07/1961" },
        { "name" : "blist_", "path" : [ "blist_age" ], "value" : "54" },
        { "name" : "blist_", "path" : [ "blist_nation" ], "value" : "ITALY" }
        ]
      }
    ]
  },
  {
    "partition" : {
      "key" : [ "Luc HAGENAARS" ],
      "position" : 180
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 275,
        "liveness_info" : { "tstamp" : "2018-10-12T16:58:00.374846Z" },
        "cells" : [
          { "name" : "blist_", "deletion_info" : { "marked_deleted" : "2018-10-12T16:58:00.374845Z", "local_delete_time" : "2018-10-12T16:58:00Z" } },
          { "name" : "blist_", "path" : [ "bday" ], "value" : "27/07/1987" },
          { "name" : "blist_", "path" : [ "blist_age" ], "value" : "28" },
          { "name" : "blist_", "path" : [ "blist_nation" ], "value" : "NETHERLANDS" }
        ]
      }
    ]
  }
]

Show a row per line in standard output of the cycling.birthday_list table

Restriction: DataStax Enterprise must be stopped before you run this command.

sstabledump /var/lib/cassandra/data/cycling/birthday_list-e439b9222bc511e8891b23da85222d3d/aa-2-bti-Data.db -d
[Claudio HEINEN]@0 Row[info=[ts=1521498957445075] ]:  | , [blist[age]=23 ts=1521498957445075], [blist[bday]=27/07/1992 ts=1521498957445075], [blist[nation]=GERMANY ts=1521498957445075]
[Claudio VANDELLI]@76 Row[info=[ts=1521498957437559] ]:  | , [blist[age]=54 ts=1521498957437559], [blist[bday]=27/07/1961 ts=1521498957437559], [blist[nation]=ITALY ts=1521498957437559]
[Luc HAGENAARS]@152 Row[info=[ts=1521498957448698] ]:  | , [blist[age]=28 ts=1521498957448698], [blist[bday]=27/07/1987 ts=1521498957448698], [blist[nation]=NETHERLANDS ts=1521498957448698]
[Toine POELS]@232 Row[info=[ts=1521498957451068] ]:  | , [blist[age]=52 ts=1521498957451068], [blist[bday]=27/07/1963 ts=1521498957451068], [blist[nation]=NETHERLANDS ts=1521498957451068]
[Allan DAVIS]@310 Row[info=[ts=1521498957430478] ]:  | , [blist[age]=35 ts=1521498957430478], [blist[bday]=27/07/1980 ts=1521498957430478], [blist[nation]=AUSTRALIA ts=1521498957430478]
[Laurence BOURQUE]@384 Row[info=[ts=1521498957441360] ]:  | , [blist[age]=23 ts=1521498957441360], [blist[bday]=27/07/1992 ts=1521498957441360], [blist[nation]=CANADA ts=1521498957441360]

Display a list of partition keys from the cycling.birthday_list table

Restriction: DataStax Enterprise must be stopped before you run this command.

sstabledump /var/lib/cassandra/data/cycling/birthday_list-e439b9222bc511e8891b23da85222d3d/aa-2-bti-Data.db -e
[ [ "Claudio HEINEN" ], [ "Claudio VANDELLI" ], [ "Luc HAGENAARS" ], [ "Toine POELS" ], [ "Allan DAVIS" ], [ "Laurence BOURQUE" ] ]

Display all rows in the partition

Restriction: DataStax Enterprise must be stopped before you run this command.

sstabledump /var/lib/cassandra/data/cycling/birthday_list-e439b9222bc511e8891b23da85222d3d/aa-2-bti-Data.db -k "Claudio HEINEN"
[
  {
    "partition" : {
      "key" : [ "Claudio HEINEN" ],
      "position" : 0
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 75,
        "liveness_info" : { "tstamp" : "2018-03-19T22:35:57.445075Z" },
        "cells" : [
          { "name" : "blist", "path" : [ "age" ], "value" : "23" },
          { "name" : "blist", "path" : [ "bday" ], "value" : "27/07/1992" },
          { "name" : "blist", "path" : [ "nation" ], "value" : "GERMANY" }
        ]
      }
    ]
  }
]

Display all rows except those in the specified partition

Restriction: DataStax Enterprise must be stopped before you run this command.

sstabledump /var/lib/cassandra/data/cycling/birthday_list-e439b9222bc511e8891b23da85222d3d/aa-2-bti-Data.db -x "Claudio HEINEN"
[
  {
    "partition" : {
      "key" : [ "Claudio VANDELLI" ],
      "position" : 0
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 151,
        "liveness_info" : { "tstamp" : "2018-03-19T22:35:57.437559Z" },
        "cells" : [
          { "name" : "blist", "path" : [ "age" ], "value" : "54" },
          { "name" : "blist", "path" : [ "bday" ], "value" : "27/07/1961" },
          { "name" : "blist", "path" : [ "nation" ], "value" : "ITALY" }
        ]
      }
    ]
  },
  {
    "partition" : {
      "key" : [ "Luc HAGENAARS" ],
      "position" : 152
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 231,
        "liveness_info" : { "tstamp" : "2018-03-19T22:35:57.448698Z" },
        "cells" : [
          { "name" : "blist", "path" : [ "age" ], "value" : "28" },
          { "name" : "blist", "path" : [ "bday" ], "value" : "27/07/1987" },
          { "name" : "blist", "path" : [ "nation" ], "value" : "NETHERLANDS" }
        ]
      }
    ]
  },
  {
    "partition" : {
      "key" : [ "Toine POELS" ],
      "position" : 232
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 309,
        "liveness_info" : { "tstamp" : "2018-03-19T22:35:57.451068Z" },
        "cells" : [
          { "name" : "blist", "path" : [ "age" ], "value" : "52" },
          { "name" : "blist", "path" : [ "bday" ], "value" : "27/07/1963" },
          { "name" : "blist", "path" : [ "nation" ], "value" : "NETHERLANDS" }
        ]
      }
    ]
  },
  {
    "partition" : {
      "key" : [ "Allan DAVIS" ],
      "position" : 310
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 383,
        "liveness_info" : { "tstamp" : "2018-03-19T22:35:57.430478Z" },
        "cells" : [
          { "name" : "blist", "path" : [ "age" ], "value" : "35" },
          { "name" : "blist", "path" : [ "bday" ], "value" : "27/07/1980" },
          { "name" : "blist", "path" : [ "nation" ], "value" : "AUSTRALIA" }
        ]
      }
    ]
  },
  {
    "partition" : {
      "key" : [ "Laurence BOURQUE" ],
      "position" : 384
    },
    "rows" : [
      {
        "type" : "row",
        "position" : 460,
        "liveness_info" : { "tstamp" : "2018-03-19T22:35:57.441360Z" },
        "cells" : [
          { "name" : "blist", "path" : [ "age" ], "value" : "23" },
          { "name" : "blist", "path" : [ "bday" ], "value" : "27/07/1992" },
          { "name" : "blist", "path" : [ "nation" ], "value" : "CANADA" }
        ]
      }
    ]
  }
]

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