Influx Inspect disk shard utility

Influx Inspect is a disk shard utility that can be used to:

  • View detailed information about disk shards
  • Exporting data from a shard to line protocol that can be inserted back into the database
  • Converting TSM-based shards to TSI disk-based shards

influx_inspect [[command] [arguments]]

-help is the default command and will print usage for the tool.

The commands are:

    buildtsi             convert in-memory (TSM-based) shards to TSI
    dumptsi              dumps low-level details about tsi1 files.
    dumptsm              dumps low-level details about tsm1 files.
    export               exports raw data from a shard to line protocol
    help                 display this help message format
    report               displays a shard level report
    verify               verifies integrity of TSM files

influx_inspect buildtsi

Converts TSM-based shards to shards supporting TSI (time series index) disk-based index files. The index is written to a temporary location until complete and then moved to a permanent location. If an error occurs, then this operation will fall back to the original in-memory index.

Note: This tool is for offline conversion only. When TSI is enabled, new shards use the TSI indexes. Existing shards continue as TSM-based shards until converted offline.


influx_inspect buildtsi -datadir <data_directory> -waldir <WAL_directory> [ options ]


Optional arguments are in brackets.

[ -database string ]

Database name.

-datadir string

Data directory.

[ -retention string ]

Retention policy.

[ -shard string ]

Shard ID.

[ -v ]

Verbose output.

-waldir string

WAL directory.


Converting all shards on a node
$ influx_inspect buildtsi -datadir ~/.influxdb/data -waldir ~/.influxdb/wal

Converting all shards for a database
$ influx_inspect buildtsi -database mydb -datadir ~/.influxdb/data -waldir ~/.influxdb/wal

Converting a specific shard
$ influx_inspect buildtsi -database stress -shard 1 -datadir ~/.influxdb/data -waldir ~/.influxdb/wal

influx_inspect dumptsi

Dumps low-level details about tsi1 files. dumptsi returns summary stats for each file if the command does not specify any flags.


influx_inspect dumptsi [<flags>] <path>



Dump raw series data.


Dump raw measurement data.


Dump raw tag keys.


Dump raw tag values.


Dump raw series for each tag value.


Filter data by measurement regular expression.


Filter data by tag key regular expression.


Filter data by tag value regular expression.

influx_inspect dumptsm

Dumps low-level details about tsm files.


influx_inspect dumptsm [<flags>] <path>


-index bool

Dump raw index data.

default = false

-blocks bool

Dump raw block data.

default = false


Dump all data. Caution: This may print a lot of information.

default = false


Only display index and block data that match this key substring.

default = “”

influx_inspect export

Export all TSM files to line protocol. This output file can be imported using the influx command.


influx_inspect export [flags]


-compress boolean (optional)

Compress the output.

default = false

-database string (optional)

Database to export.

default = “”

-retention string (optional)

Retention policy to export.

default = “”

-datadir string

Data storage path.

default = “$HOME/.influxdb/data”

-start string (optional)

The start of the time range. The date-time string must be RFC3339 format.

-end string (optional)

The end of the time range. The date-time string must be RFC3339 format.

-out string

Specifies location for export file

default = “$HOME/.influxdb/export”

-waldir string

WAL storage path.

default = “$HOME/.influxdb/wal”

Sample Commands

Export entire database and compress the output:

influx_inspect export -compress

Export data from a specific database and retention policy:

influx_inspect export -database mydb -retention autogen

Sample Data

This is a sample of what the output will look like.


randset value=97.9296104805 1439856000000000000
randset value=25.3849066842 1439856100000000000

influx_inspect report

Displays series meta-data for all shards. The default location is [$HOME/.influxdb].


influx_inspect report [flags]


-pattern regular expression/wildcard (optional)

Include only files matching the specified pattern.

default = “”

-detailed boolean

Report detailed cardinality estimates.

default = false

influx_inspect verify

Verifies the integrity of TSM files.


influx_inspect verify [flags]


-dir string (optional)

Root storage path ‚Äč default = “/root/.influxdb”


The system does not have access to the metastore when exporting TSM shards. As such, it always creates the retention policy with infinite duration and replication factor of 1. End users may want to change this prior to reimporting if they are importing to a cluster or want a different duration for retention.

This documentation is open source. See a typo? Please, open an issue.

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