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Release notes for @PID@ and @TEMP_BASE_DIR@ startup option placeholders #790

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Release notes for @PID@ and @TEMP_BASE_DIR@ startup option placeholders #790

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18 changes: 18 additions & 0 deletions site/content/3.12/release-notes/version-3.12/whats-new-in-3-12.md
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Original file line number Diff line number Diff line change
Expand Up @@ -2257,6 +2257,24 @@ dates, and individually revoke tokens.
See the [HTTP API](../../develop/http-api/authentication.md#access-tokens)
documentation.

### `@PID@` and `@TEMP_BASE_DIR@` placeholders for startup options

<small>Introduced in: v3.12.6</small>

You can use special placeholders in startup options like `--log.output` that get
substituted as follows:

- `@PID@`: Replaced at runtime with the actual process ID. This has already
been supported using a literal occurrence of `$PID`.
- `@TEMP_BASE_DIR@`: Replaced at runtime with the current temporary directory,
e.g. `/tmp/arangodb_i37Xxh` (automatically created on startup with a randomly
generated suffix).

Keep in mind that `@NAME@` is also the syntax for using the value of an
environment variable `NAME`. If there is an environment variable called `PID` or
`TEMP_BASE_DIR`, then `@PID@` or `@TEMP_BASE_DIR@` is substituted with the
value of the respective environment variable.

## Client tools

### Protocol aliases for endpoints
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18 changes: 18 additions & 0 deletions site/content/3.13/release-notes/version-3.12/whats-new-in-3-12.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2257,6 +2257,24 @@ dates, and individually revoke tokens.
See the [HTTP API](../../develop/http-api/authentication.md#access-tokens)
documentation.

### `@PID@` and `@TEMP_BASE_DIR@` placeholders for startup options

<small>Introduced in: v3.12.6</small>

You can use special placeholders in startup options like `--log.output` that get
substituted as follows:

- `@PID@`: Replaced at runtime with the actual process ID. This has already
been supported using a literal occurrence of `$PID`.
- `@TEMP_BASE_DIR@`: Replaced at runtime with the current temporary directory,
e.g. `/tmp/arangodb_i37Xxh` (automatically created on startup with a randomly
generated suffix).

Keep in mind that `@NAME@` is also the syntax for using the value of an
environment variable `NAME`. If there is an environment variable called `PID` or
`TEMP_BASE_DIR`, then `@PID@` or `@TEMP_BASE_DIR@` is substituted with the
value of the respective environment variable.

## Client tools

### Protocol aliases for endpoints
Expand Down