The timeout specified has expired: proxy: AJP: cping/cpong failed,ajp_ilink_receive() can't receive header ---------------------------------------------------------------------------------------------------------- Key: MODCLUSTER-425 URL: https://issues.redhat.com/browse/MODCLUSTER-425 Project: mod_cluster Issue Type: Bug Components: Native (httpd modules) Affects Versions: 1.2.6.Final, 1.2.9.Final Environment: Confirmed RHEL6 x86_64 Reporter: Michal Karm Assignee: Jean-Frederic Clere Priority: Major mod_cluster balancer used in front of GateIn Portal, after certain warm-up time, starts to show: {code} [debug] proxy_util.c(2200): proxy: connected / to perf13:8009 [debug] mod_proxy_cluster.c(1384): proxy_cluster_try_pingpong: connected to backend [debug] mod_proxy_cluster.c(1108): ajp_cping_cpong: Done [debug] proxy_util.c(2036): proxy: ajp: has released connection for (perf13) [debug] proxy_util.c(2018): proxy: ajp: has acquired connection for (perf12) [debug] proxy_util.c(2074): proxy: connecting ajp://perf12:8009/ to perf12:8009 [debug] proxy_util.c(2200): proxy: connected / to perf12:8009 [debug] proxy_util.c(2451): proxy: ajp: fam 2 socket created to connect to perf12 [debug] mod_proxy_cluster.c(1384): proxy_cluster_try_pingpong: connected to backend [debug] mod_proxy_cluster.c(1108): ajp_cping_cpong: Done [debug] proxy_util.c(2036): proxy: ajp: has released connection for (perf12) [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header [error] ajp_handle_cping_cpong: ajp_ilink_receive failed [error] (70007)The timeout specified has expired: proxy: AJP: cping/cpong failed to 10.16.88.190:8009 (perf12) [debug] proxy_util.c(2018): proxy: ajp: has acquired connection for (perf12) [debug] proxy_util.c(2074): proxy: connecting ajp://perf12:8009/ to perf12:8009 [debug] proxy_util.c(2200): proxy: connected / to perf12:8009 [debug] mod_proxy_cluster.c(1384): proxy_cluster_try_pingpong: connected to backend [debug] mod_proxy_cluster.c(1108): ajp_cping_cpong: Done [debug] proxy_util.c(2036): proxy: ajp: has released connection for (perf12) [debug] proxy_util.c(2018): proxy: ajp: has acquired connection for (perf13) [debug] proxy_util.c(2074): proxy: connecting ajp://perf13:8009/ to perf13:8009 [debug] proxy_util.c(2200): proxy: connected / to perf13:8009 [debug] mod_proxy_cluster.c(1384): proxy_cluster_try_pingpong: connected to backend [debug] mod_proxy_cluster.c(1108): ajp_cping_cpong: Done [debug] proxy_util.c(2036): proxy: ajp: has released connection for (perf13) [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header [error] ajp_handle_cping_cpong: ajp_ilink_receive failed [error] (70007)The timeout specified has expired: proxy: AJP: cping/cpong failed to 10.16.88.190:8009 (perf12) [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header [error] ajp_handle_cping_cpong: ajp_ilink_receive failed [error] (70007)The timeout specified has expired: proxy: AJP: cping/cpong failed to 10.16.88.190:8009 (perf12) [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header [error] ajp_handle_cping_cpong: ajp_ilink_receive failed [error] (70007)The timeout specified has expired: proxy: AJP: cping/cpong failed to 10.16.88.190:8009 (perf12) [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header [error] ajp_handle_cping_cpong: ajp_ilink_receive failed [error] (70007)The timeout specified has expired: proxy: AJP: cping/cpong failed to 10.16.88.190:8009 (perf12) [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header [error] ajp_handle_cping_cpong: ajp_ilink_receive failed [error] (70007)The timeout specified has expired: proxy: AJP: cping/cpong failed to 10.16.88.190:8009 (perf12) [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header {code} Investigation is going on...