Add TSI support tooling.

[benbjohnson]

Overview

Added a dumptsi command to influx_inspect. It provides the ability to inspect a whole index or a subset of files.

Dumps low-level details about tsi1 files.

Usage: influx_inspect dumptsi [flags] path...

    -series
            Dump raw series data
    -measurements
            Dump raw measurement data
    -tag-keys
            Dump raw tag keys
    -tag-values
            Dump raw tag values
    -tag-value-series
            Dump raw series for each tag value
    -measurement-filter REGEXP
            Filters data by measurement regular expression
    -tag-key-filter REGEXP
            Filters data by tag key regular expression
    -tag-value-filter REGEXP
            Filters data by tag value regular expression

If no flags are specified then summary stats are provided for each file.

Required for all non-trivial PRs

• Rebased/mergable
• Tests pass

[jwilder]

Changelog?

[benbjohnson]

@jwilder Does it need a CHANGELOG since TSI is new to 1.3?

[jwilder]

@benbjohnson I'd add something under the features section.

[benbjohnson]

@jwilder np. I added it in 489c89b.

[freeseacher]

that tooling is missing in help mode.

# influx_inspect                                        
Usage: influx_inspect [[command] [arguments]]

The commands are:

    dumptsm              dumps low-level details about tsm1 files.
    export               exports raw data from a shard to line protocol
    help                 display this help message
    report               displays a shard level report
    verify               verifies integrity of TSM files

"help" is the default command.

Use "influx_inspect [command] -help" for more information about a command.