[JBoss JIRA] (MODCLUSTER-425) The timeout specified has expired: proxy: AJP: cping/cpong failed, ajp_ilink_receive() can't receive header
4:02 a.m.
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https://issues.jboss.org/browse/MODCLUSTER-425?page=com.atlassian.jira.pl...
]
Michal Babacek commented on MODCLUSTER-425:
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* worker-timeout: Does not help
* playing with max-connections on AS7 side helps a bit
* prepending {{apr_socket_timeout_set(backend->sock, timeout);}} before {{status =
ajp_handle_cping_cpong(backend->sock, r, timeout);}} has no effect
* reconnecting immediately after failure does not help {code}status =
ap_proxy_connect_backend(scheme, backend, worker, r->server);
status = ajp_handle_cping_cpong(backend->sock, r, timeout);{code}
* IMHO as soon as the available connections (~2000 {{netstat -an | grep 8009}}) are
exhausted, there isn't much one can do to prevent the mod_proxy_ajp timeout errors.
* TODO: Compare directly to mod_jk
The timeout specified has expired: proxy: AJP: cping/cpong
failed,ajp_ilink_receive() can't receive header
----------------------------------------------------------------------------------------------------------
Key: MODCLUSTER-425
URL: https://issues.jboss.org/browse/MODCLUSTER-425
Project: mod_cluster
Issue Type: Bug
Security Level: Public(Everyone can see)
Affects Versions: 1.2.6.Final, 1.2.9.Final
Environment: Confirmed RHEL6 x86_64
Reporter: Michal Babacek
Assignee: Michal Babacek
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...
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Michal Babacek (JIRA)