Bug#1036213: apache2: More infos for this bug
Package: apache2
Version: 2.4.56-1~deb11u2
Followup-For: Bug #1036213
I have additional information that might be related to this bug.
It seems to be following the previous bug I opened in Bug#1033408 ,
which is now solved since 2.4.56-1~deb11u2, but now we don't have
segfaults anymore, but the server of our customer is having a load average
increasing since we've updated the package, we've tested for a week and
load average went from around 5, to 35, slowly increasing over the week
to this value, and it would probably have increased more if we hadn't
intervene.
After witnessing this behavior I noticed these logs in error logs which
I had never seen before:
[...]
[Tue May 30 08:59:29.873462 2023] [http2:warn] [pid 3805413:tid 140434122716928] [client 81.204.51.61:56550] h2_stream(3805413-327-1,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 08:59:29.873486 2023] [http2:warn] [pid 3805413:tid 140434122716928] [client 81.204.51.61:56550] h2_stream(3805413-327-5,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 08:59:29.873490 2023] [http2:warn] [pid 3805413:tid 140434122716928] [client 81.204.51.61:56550] h2_stream(3805413-327-9,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 09:07:11.128774 2023] [http2:warn] [pid 3808854:tid 140434047182592] [client 106.245.192.226:56994] h2_stream(3808854-230-1,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 09:07:11.128793 2023] [http2:warn] [pid 3808854:tid 140434047182592] [client 106.245.192.226:56994] h2_stream(3808854-230-5,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 09:13:36.366838 2023] [http2:warn] [pid 3811558:tid 140434114324224] [client 51.179.98.234:49225] h2_stream(3811558-357-17,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 09:13:36.366874 2023] [http2:warn] [pid 3811558:tid 140434114324224] [client 51.179.98.234:49225] h2_stream(3811558-357-19,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 09:55:14.468946 2023] [http2:warn] [pid 3832829:tid 140434089146112] [client 109.234.73.147:53640] h2_stream(3832829-35-5,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[Tue May 30 09:56:14.469032 2023] [http2:warn] [pid 3832829:tid 140434089146112] [client 109.234.73.147:53640] h2_stream(3832829-35-5,CLEANUP): started=1, scheduled=1, ready=0, out_buffer=0
[...]
After noticing these, I immediately thought about the previous bug and
completely disabled the http2 module in apache. It immediately solved
the load issue.
I know it's very few information and I'm not sure it's related exactly
to his particular bug, might need a bug report of its own, but in case,
I don't want to duplicate and will let you choose.
-- Package-specific info:
-- System Information:
Debian Release: 11.7
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 5.10.0-18-amd64 (SMP w/32 CPU threads)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages apache2 depends on:
ii apache2-bin 2.4.56-1~deb11u2
ii apache2-data 2.4.56-1~deb11u2
ii apache2-utils 2.4.56-1~deb11u2
ii dpkg 1.20.12
ii init-system-helpers 1.60
ii lsb-base 11.1.0
ii mime-support 3.66
ii perl 5.32.1-4+deb11u2
ii procps 2:3.3.17-5
Versions of packages apache2 recommends:
ii ssl-cert 1.1.0+nmu1
Versions of packages apache2 suggests:
pn apache2-doc <none>
pn apache2-suexec-pristine | apache2-suexec-custom <none>
ii lynx [www-browser] 2.9.0dev.6-3~deb11u1
Versions of packages apache2-bin depends on:
ii libapr1 1.7.0-6+deb11u2
ii libaprutil1 1.6.1-5+deb11u1
ii libaprutil1-dbd-sqlite3 1.6.1-5+deb11u1
ii libaprutil1-ldap 1.6.1-5+deb11u1
ii libbrotli1 1.0.9-2+b2
ii libc6 2.31-13+deb11u6
ii libcrypt1 1:4.4.18-4
ii libcurl4 7.74.0-1.3+deb11u7
ii libjansson4 2.13.1-1.1
ii libldap-2.4-2 2.4.57+dfsg-3+deb11u1
ii liblua5.3-0 5.3.3-1.1+b1
ii libnghttp2-14 1.43.0-1
ii libpcre3 2:8.44-2+0~20210301.9+debian11~1.gbpa278ad
ii libssl1.1 1.1.1n-0+deb11u4
ii libxml2 2.9.14+dfsg-0.1+0~20230421.14+debian11~1.gbpf14485
ii perl 5.32.1-4+deb11u2
ii zlib1g 1:1.2.11.dfsg-2+deb11u2
Versions of packages apache2-bin suggests:
pn apache2-doc <none>
pn apache2-suexec-pristine | apache2-suexec-custom <none>
ii lynx [www-browser] 2.9.0dev.6-3~deb11u1
Versions of packages apache2 is related to:
ii apache2 2.4.56-1~deb11u2
ii apache2-bin 2.4.56-1~deb11u2
-- Configuration Files:
/etc/apache2/apache2.conf changed [not included]
/etc/apache2/mods-available/mpm_event.conf changed [not included]
/etc/apache2/ports.conf changed [not included]
/etc/apache2/sites-available/000-default.conf changed [not included]
-- no debconf information
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