https://bz.apache.org/bugzilla/show_bug.cgi?id=62044
--- Comment #25 from m...@blackmans.org --- Perhaps, we're seeing the error even in the balancer SHMs as well as the worker SHMs and the balancer SHM already uses conf->id as a distinguisher. https://github.com/apache/httpd/blob/2.4.29/modules/proxy/mod_proxy_balancer.c#L814 For this balancer (not worker), even with Jim's change, we saw the following. Summarizing first 12:26:41 - attach found and attached to slotmem-shm-p701d8bbe_0 12:33:51 - SIGHUP 12:34:54 - create (not attach) fails to find slotmem-shm-p701d8bbe_0 12:34:54 - create fails to create because the SHM key/segment is still in the kernel 12:38:54 - create (under a new PID) fails to find slotmem-shm-p701d8bbe_0 but successfully creates it, presumably because all attached processes detached finally. Why didnt the generation change? it was zero before and after the HUP. [Wed Jan 31 12:26:41.463136 2018] [slotmem_shm:debug] [pid 1322:tid 139715805775616] mod_slotmem_shm.c(463): AH02301: attach looking for /var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm [Wed Jan 31 12:26:41.463169 2018] [slotmem_shm:debug] [pid 1322:tid 139715805775616] mod_slotmem_shm.c(476): AH02302: attach found /var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm: 992/6 [Wed Jan 31 12:33:51.761487 2018] [mpm_event:notice] [pid 65265:tid 139715805775616] AH00494: SIGHUP received. Attempting to restart [Wed Jan 31 12:34:54.471933 2018] [slotmem_shm:debug] [pid 20672:tid 139965041129216] mod_slotmem_shm.c(331): AH02602: create didn't find /var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm in global list [Wed Jan 31 12:34:54.471939 2018] [slotmem_shm:debug] [pid 20672:tid 139965041129216] mod_slotmem_shm.c(341): AH02300: create /var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm: 992/6 [Wed Jan 31 12:34:54.471970 2018] [slotmem_shm:error] [pid 20672:tid 139965041129216] (17)File exists: AH02611: create: apr_shm_create(/var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm) failed [Wed Jan 31 12:38:46.746713 2018] [slotmem_shm:debug] [pid 31117:tid 140506605512448] mod_slotmem_shm.c(331): AH02602: create didn't find /var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm in global list [Wed Jan 31 12:38:46.746719 2018] [slotmem_shm:debug] [pid 31117:tid 140506605512448] mod_slotmem_shm.c(341): AH02300: create /var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm: 992/6 [Wed Jan 31 12:38:46.746893 2018] [slotmem_shm:debug] [pid 31117:tid 140506605512448] mod_slotmem_shm.c(384): AH02611: create: apr_shm_create(/var/run/http/apache24/tmp/slotmem-shm-p701d8bbe_0.shm) succeeded [Wed Jan 31 12:38:49.922030 2018] [mpm_event:notice] [pid 31117:tid 140506605512448] AH00489: Apache/2.4.29 (Unix) OpenSSL/1.0.2n mod_fcgid/2.3.9 mod_auth_kerb/5.4 mod_qos/11.43 mod_jk/1.2.42 configured -- resuming -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: bugs-unsubscr...@httpd.apache.org For additional commands, e-mail: bugs-h...@httpd.apache.org
