我有一台已更新的 Debian 9.13 服务器。在 Apache 错误日志中，我每 5 秒就会收到此消息：
[Tue Oct 19 23:15:07.000842 2021] [core:notice] [pid 7091] AH00094: Command line: '/usr/sbin/apache2'
[Tue Oct 19 23:15:09.913896 2021] [mpm_prefork:notice] [pid 7091] AH00171: Graceful restart requested, doing restart
[Tue Oct 19 23:15:10.084091 2021] [:notice] [pid 7091] mod_ruid2/0.9.8 enabled
[Tue Oct 19 23:15:10.088484 2021] [mpm_prefork:notice] [pid 7091] AH00163: Apache/2.4.25 (Debian) mod_fcgid/2.3.9 OpenSSL/1.0.2u configured -- resuming normal operations
[Tue Oct 19 23:15:10.088502 2021] [core:notice] [pid 7091] AH00094: Command line: '/usr/sbin/apache2'
[Tue Oct 19 23:15:10.877117 2021] [mpm_prefork:notice] [pid 7091] AH00171: Graceful restart requested, doing restart
[Tue Oct 19 23:15:11.050083 2021] [:notice] [pid 7091] mod_ruid2/0.9.8 enabled
[Tue Oct 19 23:15:11.055795 2021] [mpm_prefork:notice] [pid 7091] AH00163: Apache/2.4.25 (Debian) mod_fcgid/2.3.9 OpenSSL/1.0.2u configured -- resuming normal operations
[Tue Oct 19 23:15:11.055816 2021] [core:notice] [pid 7091] AH00094: Command line: '/usr/sbin/apache2'
[Tue Oct 19 23:15:13.310891 2021] [mpm_prefork:notice] [pid 7091] AH00171: Graceful restart requested, doing restart
[Tue Oct 19 23:15:13.461359 2021] [:notice] [pid 7091] mod_ruid2/0.9.8 enabled
[Tue Oct 19 23:15:13.465992 2021] [mpm_prefork:notice] [pid 7091] AH00163: Apache/2.4.25 (Debian) mod_fcgid/2.3.9 OpenSSL/1.0.2u configured -- resuming normal operations
[Tue Oct 19 23:15:13.466015 2021] [core:notice] [pid 7091] AH00094: Command line: '/usr/sbin/apache2'
[Tue Oct 19 23:15:16.660820 2021] [mpm_prefork:notice] [pid 7091] AH00171: Graceful restart requested, doing restart
[Tue Oct 19 23:15:16.854361 2021] [:notice] [pid 7091] mod_ruid2/0.9.8 enabled
[Tue Oct 19 23:15:16.859235 2021] [mpm_prefork:notice] [pid 7091] AH00163: Apache/2.4.25 (Debian) mod_fcgid/2.3.9 OpenSSL/1.0.2u configured -- resuming normal operations
[Tue Oct 19 23:15:16.859256 2021] [core:notice] [pid 7091] AH00094: Command line: '/usr/sbin/apache2'
[Tue Oct 19 23:15:17.819697 2021] [mpm_prefork:notice] [pid 7091] AH00171: Graceful restart requested, doing restart
[Tue Oct 19 23:15:18.001002 2021] [:notice] [pid 7091] mod_ruid2/0.9.8 enabled
[Tue Oct 19 23:15:18.009108 2021] [mpm_prefork:notice] [pid 7091] AH00163: Apache/2.4.25 (Debian) mod_fcgid/2.3.9 OpenSSL/1.0.2u configured -- resuming normal operations
[Tue Oct 19 23:15:18.009130 2021] [core:notice] [pid 7091] AH00094: Command line: '/usr/sbin/apache2'
它给我带来了很多问题，服务器也崩溃了。有什么线索告诉我需要修改什么吗？