Apache2.4，
error日志：
The 'apache24' service is restarting.
The 'apache24' service has restarted.
:warn] [pid 5252:tid 364] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Thu Mar 03 14:57:25.661732 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00455: Apache/2.4.18 (Win32) OpenSSL/1.0.2e PHP/5.6.18 configured -- resuming normal operations
[Thu Mar 03 14:57:25.661732 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00456: Server built: Dec 9 2015 11:12:24
[Thu Mar 03 14:57:25.661732 2016] [core:notice] [pid 5252:tid 364] AH00094: Command line: 'D:\\AppServ\\Apache24\\bin\\httpd.exe -d D:/AppServ/Apache24'
[Thu Mar 03 14:57:25.677332 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00418: Parent: Created child process 7036
[Thu Mar 03 14:57:27.513558 2016] [ssl:warn] [pid 7036:tid 256] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Thu Mar 03 14:57:27.560358 2016] [mpm_winnt:notice] [pid 7036:tid 256] AH00354: Child: Starting 64 worker threads.
The 'apache24' service is restarting.
The 'apache24' service has restarted.
_winnt:notice] [pid 5252:tid 364] AH00424: Parent: Received restart signal -- Restarting the server.
[Thu Mar 03 15:08:16.963161 2016] [ssl:warn] [pid 5252:tid 364] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Thu Mar 03 15:08:17.018164 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00455: Apache/2.4.18 (Win32) OpenSSL/1.0.2e PHP/5.6.18 configured -- resuming normal operations
[Thu Mar 03 15:08:17.018164 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00456: Server built: Dec 9 2015 11:12:24
[Thu Mar 03 15:08:17.018164 2016] [core:notice] [pid 5252:tid 364] AH00094: Command line: 'D:\\AppServ\\Apache24\\bin\\httpd.exe -d D:/AppServ/Apache24'
[Thu Mar 03 15:08:17.030165 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00418: Parent: Created child process 2076
[Thu Mar 03 15:08:18.578253 2016] [mpm_winnt:notice] [pid 7036:tid 256] AH00364: Child: All worker threads have exited.
[Thu Mar 03 15:08:18.803266 2016] [ssl:warn] [pid 2076:tid 256] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Thu Mar 03 15:08:18.867270 2016] [mpm_winnt:notice] [pid 2076:tid 256] AH00354: Child: Starting 64 worker threads.
The 'apache24' service is restarting.
The 'apache24' service has restarted.
_winnt:notice] [pid 5252:tid 364] AH00424: Parent: Received restart signal -- Restarting the server.
[Thu Mar 03 15:12:39.201266 2016] [ssl:warn] [pid 5252:tid 364] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Thu Mar 03 15:12:39.244868 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00455: Apache/2.4.18 (Win32) OpenSSL/1.0.2e PHP/5.6.18 configured -- resuming normal operations
[Thu Mar 03 15:12:39.244868 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00456: Server built: Dec 9 2015 11:12:24
[Thu Mar 03 15:12:39.244868 2016] [core:notice] [pid 5252:tid 364] AH00094: Command line: 'D:\\AppServ\\Apache24\\bin\\httpd.exe -d D:/AppServ/Apache24'
[Thu Mar 03 15:12:39.244868 2016] [mpm_winnt:notice] [pid 5252:tid 364] AH00418: Parent: Created child process 3768
[Thu Mar 03 15:12:40.944094 2016] [ssl:warn] [pid 3768:tid 256] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache]
[Thu Mar 03 15:12:41.007495 2016] [mpm_winnt:notice] [pid 3768:tid 256] AH00354: Child: Starting 64 worker threads.
[Thu Mar 03 15:13:11.866945 2016] [mpm_winnt:notice] [pid 2076:tid 256] AH00362: Child: Waiting 30 more seconds for 1 worker threads to finish.

启动前先验证配置
httpd -t
你这里有警告Session Cache is not configured
应该是相关的module没有配置好