docs/content/code-security/codeql-cli/codeql-cli-manual/execute-query-server2.md

---
title: execute query-server2
versions: # DO NOT MANUALLY EDIT. CHANGES WILL BE OVERWRITTEN BY A 🤖
  fpt: '*'
  ghae: '*'
  ghec: '*'
  ghes: '*'
topics:
  - Advanced Security
  - Code scanning
  - CodeQL
type: reference
product: '{% data reusables.gated-features.codeql %}'
autogenerated: codeql-cli
intro: '[Plumbing] Support for running queries from IDEs.'
redirect_from:
  - /code-security/codeql-cli/manual/execute-query-server2
---


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{% data reusables.codeql-cli.man-pages-version-note %}

## Synopsis

```shell copy
codeql execute query-server2 [--threads=<num>] <options>...
```

## Description

\[Plumbing] Support for running queries from IDEs.

This command is only relevant for authors of QL language extensions for
IDEs. It is started by the IDE plugin in the background and communicates
with it through a special protocol on its standard input and output
streams.

Available since `v2.10.11`.

## Options

### Primary Options

#### `--[no-]tuple-counting` <!-- markdownlint-disable-line heading-increment -->

\[Advanced] Display tuple counts for each evaluation step in the query
evaluator logs. If the `--evaluator-log` option is provided, tuple
counts will be included in both the text-based and structured JSON logs
produced by the command. (This can be useful for performance
optimization of complex QL code).

#### `--timeout=<seconds>`

\[Advanced] Set the timeout length for query evaluation, in seconds.

The timeout feature is intended to catch cases where a complex query
would take "forever" to evaluate. It is not an effective way to limit
the total amount of time the query evaluation can take. The evaluation
will be allowed to continue as long as each separately timed part of the
computation completes within the timeout. Currently these separately
timed parts are "RA layers" of the optimized query, but that might
change in the future.

If no timeout is specified, or is given as 0, no timeout will be set
(except for [codeql test run](/code-security/codeql-cli/codeql-cli-manual/test-run), where the default timeout is 5 minutes).

#### `-j, --threads=<num>`

Use this many threads to evaluate queries.

Defaults to 1. You can pass 0 to use one thread per core on the machine,
or -_N_ to leave _N_ cores unused (except still use at least one
thread).

#### `--[no-]save-cache`

\[Advanced] Aggressively write intermediate results to the disk cache.
This takes more time and uses (much) more disk space, but may speed up
the subsequent execution of similar queries.

#### `--[no-]expect-discarded-cache`

\[Advanced] Make decisions about which predicates to evaluate, and what
to write to the disk cache, based on the assumption that the cache will
be discarded after the queries have been executed.

#### `--[no-]keep-full-cache`

\[Advanced] Don't clean up the disk cache after evaluation completes.
This may save time if you're going to do [codeql dataset cleanup](/code-security/codeql-cli/codeql-cli-manual/dataset-cleanup) or [codeql database cleanup](/code-security/codeql-cli/codeql-cli-manual/database-cleanup) afterwards anyway.

#### `--max-disk-cache=<MB>`

Set the maximum amount of space that the disk cache for intermediate
query results can use.

If this size is not configured explicitly, the evaluator will try to use
a "reasonable" amount of cache space, based on the size of the dataset
and the complexity of the queries. Explicitly setting a higher limit
than this default usage will enable additional caching which can speed
up later queries.

#### `--min-disk-free=<MB>`

\[Advanced] Set target amount of free space on file system.

If `--max-disk-cache` is not given, the evaluator will try hard to
curtail disk cache usage if the free space on the file system drops
below this value.

#### `--min-disk-free-pct=<pct>`

\[Advanced] Set target fraction of free space on file system.

If `--max-disk-cache` is not given, the evaluator will try hard to
curtail disk cache usage if the free space on the file system drops
below this percentage.

#### `--external=<pred>=<file.csv>`

A CSV file that contains rows for external predicate _\<pred>_.
Multiple `--external` options can be supplied.

#### `--xterm-progress=<mode>`

\[Advanced] Controls whether to show progress tracking during QL
evaluation using xterm control sequences. Possible values are:

`no`: Never produce fancy progress; assume a dumb terminal.

`auto` _(default)_: Autodetect whether the command is running in an
appropriate terminal.

`yes`: Assume the terminal can understand xterm control sequences. The
feature still depends on being able to autodetect the _size_ of the
terminal, and will also be disabled if `-q` is given.

`25x80` (or similar): Like `yes`, and also explicitly give the size of
the terminal.

`25x80:/dev/pts/17` (or similar): show fancy progress on a _different_
terminal than stderr. Mostly useful for internal testing.

#### `--search-path=<dir>[:<dir>...]`

This works like the similar option to [codeql query compile](/code-security/codeql-cli/codeql-cli-manual/query-compile) (q.v.).

There are no `--additional-packs` or `--library-path` options, as the
corresponding values are provided per query

(Note: On Windows the path separator is `;`).

### Options for controlling outputting of structured evaluator logs

#### `--evaluator-log=<file>`

\[Advanced] Output structured logs about evaluator performance to the
given file. The format of this log file is subject to change with no
notice, but will be a stream of JSON objects separated by either two
newline characters (by default) or one if the `--evaluator-log-minify`
option is passed. Please use `codeql generate log-summary <file>` to
produce a more stable summary of this file, and avoid parsing the file
directly. The file will be overwritten if it already exists.

#### `--evaluator-log-minify`

\[Advanced] If the `--evaluator-log` option is passed, also passing
this option will minimize the size of the JSON log produced, at the
expense of making it much less human readable.

### Common options

#### `-h, --help`

Show this help text.

#### `-J=<opt>`

\[Advanced] Give option to the JVM running the command.

(Beware that options containing spaces will not be handled correctly.)

#### `-v, --verbose`

Incrementally increase the number of progress messages printed.

#### `-q, --quiet`

Incrementally decrease the number of progress messages printed.

#### `--verbosity=<level>`

\[Advanced] Explicitly set the verbosity level to one of errors,
warnings, progress, progress+, progress++, progress+++. Overrides `-v`
and `-q`.

#### `--logdir=<dir>`

\[Advanced] Write detailed logs to one or more files in the given
directory, with generated names that include timestamps and the name of
the running subcommand.

(To write a log file with a name you have full control over, instead
give `--log-to-stderr` and redirect stderr as desired.)