https://bz.apache.org/bugzilla/show_bug.cgi?id=65641
Bug ID: 65641
Summary: (22)Invalid argument: AH02454: HTTPS: attempt to
connect to Unix domain socket
Product: Apache httpd-2
Version: 2.4.41
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_proxy
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Hello, I recently found that when httpd works as a reverse proxy, a 503 error
occurs occasionally. The log is printed as follows:
[Sun Oct 17 02:55:01.091087 2021] [proxy:error] [pid 1212:tid 139759928190720]
(22)Invalid argument: AH02454: HTTPS: attempt to connect to Unix domain socket
/usr/local/apache/logs/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbaaaadddddddddddddaaaaa
(web-vip) failed
[Sun Oct 17 02:55:01.091119 2021] [proxy_http:error] [pid 1212:tid
139759928190720] [client 10.232.234.195:53582] AH01114: HTTP: failed to make
connection to backend: httpd-UDS, referer: https://www.sitemask.com/
[Sun Oct 17 02:55:01.901670 2021] [proxy:error] [pid 1212:tid 139759844271872]
(22)Invalid argument: AH02454: HTTPS: attempt to connect to Unix domain socket
/usr/local/apache/logs/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbaaaadddddddddddddaaaaa
(web-vip) failed
[Sun Oct 17 02:55:01.901713 2021] [proxy_http:error] [pid 1212:tid
139759844271872] [client 10.232.134.78:39138] AH01114: HTTP: failed to make
connection to backend: httpd-UDS, referer: https://www.sitemask.com/
Other information is as follows:
/usr/local/apache/bin/httpd -V
Server version: Apache/2.4.41 (Unix)
Server built: Sep 6 2019 02:56:34
Server's Module Magic Number: 20120211:88
Server loaded: APR 1.6.3, APR-UTIL 1.6.1
Compiled using: APR 1.6.3, APR-UTIL 1.6.1
Architecture: 64-bit
Server MPM: worker
threaded: yes (fixed thread count)
forked: yes (variable process count)
Server compiled with....
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/usr/local/apache"
-D SUEXEC_BIN="/usr/local/apache/bin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf
ulimit -a
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 30446
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 1048576
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) unlimited
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
uname -a
Linux web-prod-rs-v030-n4gl9 5.4.110-54.182.amzn2.x86_64 #1 SMP Fri Apr 9
17:56:33 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
The uds file name completely exceeds the file name size limit of the Linux
system.
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