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mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents b74c86d137c9
children
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# Introduction

::: {.alert .alert-danger}
Consider using [mod_mam][doc:modules:mod_mam] together with
[mod_readonly] instead.
:::

This module logs messages to a SQL database.

SQL connection options are configured in a `message_log_sql` option,
which has the same syntax as the `sql` option for
[mod_storage_sql][doc:modules:mod_storage_sql].

# Usage

You will need to create the following table in the configured database:

``` sql
CREATE TABLE `prosodyarchive` (
        `host` TEXT,
        `user` TEXT,
        `store` TEXT,
        `id` INTEGER PRIMARY KEY AUTOINCREMENT,
        `when` INTEGER,
        `with` TEXT,
        `resource` TEXT,
        `stanza` TEXT);
```

# Compatibility

Does *NOT* work with 0.10 due to a conflict with the new archiving
support in `mod_storage_sql`ยท