| Description| The maximum number of HTTP requests served simultaneously by Apache httpd. Proxies, {webui}, and XMLRPC API clients each consume one. Requests exceeding the parameter will be queued and might result in timeouts. | Tune when| xref:user-count[User count] and proxy count increase significantly and this line appears in [path]``/var/log/apache2/error_log``: [systemitem]``[...] [mpm_prefork:error] [pid ...] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting``. | Value default| 150 | Value recommendation | 150-500 | Location| [path]``/etc/apache2/server-tuning.conf``, in the `prefork.c` section | Example| `MaxClients = 200` | After changing| Immediately change xref:server-limit[`ServerLimit`] and check xref:max-threads[`maxThreads`] for possible adjustment. | Notes| This parameter was renamed to `MaxRequestWorkers`, both names are valid. | More information| https://httpd.apache.org/docs/2.4/en/mod/mpm_common.html#maxrequestworkers
| Description| The maximum number of HTTP requests served simultaneously by Apache httpd. Proxies, {webui}, and XMLRPC API clients each consume one. Requests exceeding the parameter will be queued and might result in timeouts. | Tune when| xref:user-count[User count] and proxy count increase significantly and this line appears in [path]``/var/log/apache2/error_log``: [systemitem]``[...] [mpm_prefork:error] [pid ...] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting``. | Value default| 150 | Value recommendation | 150-500 | Location| [path]``/etc/apache2/server-tuning.conf``, in the `prefork.c` section | Example| `MaxClients = 200` | After changing| Immediately change xref:server-limit[`ServerLimit`] and check xref:max-threads[`maxThreads`] for possible adjustment. | Notes| This parameter was renamed to `MaxRequestWorkers`, both names are valid. | More information| https://httpd.apache.org/docs/2.4/en/mod/mpm_common.html#maxrequestworkers
Proxies, {webui}, and XMLRPC API clients each consume one.
Requests exceeding the parameter will be queued and might result in timeouts.
| Tune when | xref:user-count[User count] and proxy count increase significantly and this line appears in [path]``/var/log/apache2/error_log``: [systemitem]``[...] [mpm_prefork:error] [pid ...] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting``.
| Value default | 150
| Value recommendation | 150-500
| Location | [path]``/etc/apache2/server-tuning.conf``, in the `prefork.c` section
| Example | `MaxClients = 200`
| After changing | Immediately change xref:server-limit[`ServerLimit`] and check xref:max-threads[`maxThreads`] for possible adjustment.
| Notes | This parameter was renamed to `MaxRequestWorkers`, both names are valid.
| More information | https://httpd.apache.org/docs/2.4/en/mod/mpm_common.html#maxrequestworkers
Proxies, {webui}, and XMLRPC API clients each consume one.
Requests exceeding the parameter will be queued and might result in timeouts.
| Tune when | xref:user-count[User count] and proxy count increase significantly and this line appears in [path]``/var/log/apache2/error_log``: [systemitem]``[...] [mpm_prefork:error] [pid ...] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting``.
| Value default | 150
| Value recommendation | 150-500
| Location | [path]``/etc/apache2/server-tuning.conf``, in the `prefork.c` section
| Example | `MaxClients = 200`
| After changing | Immediately change xref:server-limit[`ServerLimit`] and check xref:max-threads[`maxThreads`] for possible adjustment.
| Notes | This parameter was renamed to `MaxRequestWorkers`, both names are valid.
| More information | https://httpd.apache.org/docs/2.4/en/mod/mpm_common.html#maxrequestworkers