Checking for yum updates every time you exit

• Maybe you have slow yum mirrors ? Tried
  Code (Text):

  yum clean all

• Do you get hangs on initial login to server as well?
• Do you get hangs when you initially run centmin.sh as well?
• When there's hangs on centmin.sh menu exit, are there actually yum updates available or no updates listed? If there's a correlation with hangs and having yum package updates available and listed, then one way to minimise the problem is to setup yum-cron for automatically nightly updates as then the chances of having package updates detected on centmin.sh menu exit are lessened due to yum-cron already having installed the updates Automatic nightly YUM updates with yum-cron

You can try running centmin.sh menu option 24 in debug mode logged to debug.txt text file in /root/centminlogs directory by running these 3 commands paying attention on 2nd command's run as to what text is displayed on the screen during any hangs you may experience.

Code (Text):

cd /usr/local/src/centminmod
echo 24 | bash -x centmin.sh 2>&1 | awk '{ print strftime("%Y-%m-%d %H:%M:%S"), $0; fflush(); }' | tee /root/centminlogs/debug.txt && echo "debug log saved at /root/centminlogs/debug.txt"
sed -i "s|$(hostname)|hostname|g" /root/centminlogs/debug.txt

Then copy the contents of /root/centminlogs/debug.txt into a pastebin.com or gist.github.com shared link - with an sensitive info masked. At least server hostname will be replaced with word hostname instead via last sed replacement line.

 

using above 3 commands, longest part for me is ~13 seconds for yum check-update which is normal

Code (Text):

2018-02-08 21:53:16 + echo ' checking for YUM updates... please wait...'
2018-02-08 21:53:16  checking for YUM updates... please wait...
2018-02-08 21:53:16 + [[ -f /etc/yum.repos.d/remi.repo ]]
2018-02-08 21:53:16 ++ /usr/bin/yum --disableplugin=priorities,versionlock -e 0 -d 0 check-update --enablerepo=remi,city-fan.org '--exclude=nginx* php* mysql*'
2018-02-08 21:53:29 ++ echo 100
2018-02-08 21:53:29 + UPDATE_CHECK=100

if you don't use varnish cache, you can disable the varnish repo to speed up the check

Code (Text):

yum-config-manager --disable varnishcache_varnish41 varnishcache_varnish41-source | grep enabled

~4 seconds with varnish repo disabled

Code (Text):

2018-02-08 21:57:25 + echo ' checking for YUM updates... please wait...'
2018-02-08 21:57:25  checking for YUM updates... please wait...
2018-02-08 21:57:25 + [[ -f /etc/yum.repos.d/remi.repo ]]
2018-02-08 21:57:25 ++ /usr/bin/yum --disableplugin=priorities,versionlock -e 0 -d 0 check-update --enablerepo=remi,city-fan.org '--exclude=nginx* php* mysql*'
2018-02-08 21:57:29 ++ echo 100
2018-02-08 21:57:29 + UPDATE_CHECK=100

 

how much better time wise ?

 

@Varun was generating the debug log run slow like before or relatively faster ? I ask as the debug run only saw ~5 second delay for yum check part

Code (Text):

2018-04-12 02:47:38 + echo ' checking for YUM updates... please wait...'
2018-04-12 02:47:38  checking for YUM updates... please wait...
2018-04-12 02:47:38 + [[ -f /etc/yum.repos.d/remi.repo ]]
2018-04-12 02:47:38 ++ /usr/bin/yum --disableplugin=priorities,versionlock -e 0 -d 0 check-update --enablerepo=remi '--exclude=nginx* php* mysql*'
2018-04-12 02:47:43 ++ echo 1
2018-04-12 02:47:43 + UPDATE_CHECK=1
2018-04-12 02:47:43 + [[ 1 = \1\0\0 ]]
2018-04-12 02:47:43 + echo ' no YUM updates available'
2018-04-12 02:47:43  no YUM updates available

Has subsequent centmin.sh menu option 24 exits been as slow or are all of them subsequent ones relatively fast too ?

edit: i think i know what happened specifically with your slow exist, i updated 123.09beta01 to skip varnish cache repo setup if the response time or connection to packagecloud.io varnish cache url has issues and also moved the varnish cache repo packagecloud.io GPG key setup as part of varnish cache repo setup was delayed until after initial install. So on fresh centmin mod 123.09beta01, it seems the first time you use yum, the importing of varnish cache GPG key happened. Was this first time you exited centmin.sh menu after initial install when you got slowness ?

I just experienced this myself when - the latter part of GPG key setup when testing cminfo listlog command

Code (Text):

cminfo listlogs
Importing GPG key 0xCBF5C49E:
 Userid     : "https://packagecloud.io/varnishcache/varnish41 (https://packagecloud.io/docs#gpg_signing) <support@packagecloud.io>"
 Fingerprint: 9c96 f9ca 0dc3 f4ea 78ff 3328 34bf 6e8e cbf5 c49e
 From       : https://packagecloud.io/varnishcache/varnish41/gpgkey
Importing GPG key 0xCBF5C49E:
 Userid     : "https://packagecloud.io/varnishcache/varnish41 (https://packagecloud.io/docs#gpg_signing) <support@packagecloud.io>"
 Fingerprint: 9c96 f9ca 0dc3 f4ea 78ff 3328 34bf 6e8e cbf5 c49e
 From       : https://packagecloud.io/varnishcache/varnish41/gpgkey

List all /root/centminlogs in data ascending order
total 7.1M
-rw-r--r-- 1 root root  15K Apr 10 18:32 centminmod_123.09beta01.b017_100418-183159_yuminstall_centos7.log
-rw-r--r-- 1 root root  16K Apr 10 18:32 centminmod_yumtimes_100418-183159.log
-rw-r--r-- 1 root root   37 Apr 10 18:32 centminmod_profiletimes_100418-183159.log
-rw-r--r-- 1 root root 2.2K Apr 10 18:33 cmm-login-git-checks_100418-183305.log
-rw-r--r-- 1 root root  81K Apr 10 18:33 centminmod_downloadtimes_100418-183159.log
-rw-r--r-- 1 root root  270 Apr 10 18:33 securedtmp.log
-rw-r--r-- 1 root root    0 Apr 10 18:33 patch_opensslpatches_100418-183159.log
-rw-r--r-- 1 root root   45 Apr 10 18:36 centminmod_opensslinstalltime_100418-183159.log
-rw-r--r-- 1 root root    8 Apr 10 18:36 patch_patchnginx_100418-183159.log
-rw-r--r-- 1 root root 1.6K Apr 10 18:37 gcc_native.log
-rw-r--r-- 1 root root 1.5K Apr 10 18:37 nginx-configure-100418-183159.log
-rw-r--r-- 1 root root 2.7M Apr 10 18:40 centminmod_ngxinstalltime_100418-183159.log
-rw-r--r-- 1 root root 9.4K Apr 10 18:42 setio_innodbstatus-before-100418-184230.log
-rw-r--r-- 1 root root  785 Apr 10 18:42 centminmod_setio_100418-184230.log
-rw-r--r-- 1 root root 9.4K Apr 10 18:42 setio_innodbstatus-after-100418-184230.log
-rw-r--r-- 1 root root 1.8K Apr 10 18:43 gcc_php_native.log
-rw-r--r-- 1 root root   58 Apr 10 18:48 centminmod_phpinstalltime_100418-183159.log
-rw-r--r-- 1 root root  496 Apr 10 18:48 zendopcache_passfile.txt
-rw-r--r-- 1 root root  33K Apr 10 18:53 centminmod_123.09beta01.b017_100418-183159_yum-log.log
-rw-r--r-- 1 root root  125 Apr 10 18:53 install.utc.time.log
-rw-r--r-- 1 root root 4.2M Apr 10 18:53 centminmod_123.09beta01.b017_100418-183159_install.log
dr-xr-x--- 7 root root 4.0K Apr 10 18:53 ..
-rw-r--r-- 1 root root   19 Apr 10 18:53 getcmtime_installtime_100418-182604.log
-rw-r--r-- 1 root root   56 Apr 10 18:53 firstyum_installtime_100418-182604.log
-rw-r--r-- 1 root root  808 Apr 10 18:53 install_time_stats_100418-182604.log
-rw-r--r-- 1 root root 5.1K Apr 10 18:53 sar-u-installstats.log
-rw-r--r-- 1 root root 4.6K Apr 10 18:53 sar-q-installstats.log
-rw-r--r-- 1 root root 7.0K Apr 10 18:53 sar-r-installstats.log
-rw-r--r-- 1 root root 4.0K Apr 10 18:53 sar-b-installstats.log
-rw-r--r-- 1 root root 2.4K Apr 10 18:53 yum-timedhosts.txt
drwxr-xr-x 2 root root 4.0K Apr 12 05:27 .
-rw-r--r-- 1 root root 2.2K Apr 12 05:27 cmm-login-git-checks_120418-052716.log

the GPG key import setup is a one time task so subsequent yum commands should not have issues.

 

FYI for convenience a centmin mod 123.09beta01 cminfo update allows for doing debug-menuexit log run which is the more convenient automated way of running the manual debug centmin.sh menu option 24 cmds at Checking for yum updates every time you exit. Used for debugging slow centmin.sh menu 24 exits saving a debug log to /root/centminlogs/debug-menuexit.txt and calculating the yum check time/duration.

Code (Text):

cminfo debug-menuexit

------------------------------------------------------------------
Debugging centmin.sh menu option 24 exit routine starting
Please wait until complete...
------------------------------------------------------------------
Full debug log saved at /root/centminlogs/debug-menuexit.txt

Inspect Yum Check Times In debug-menuexit.txt log

2018-04-12 06:36:59 + echo ' checking for YUM updates... please wait...'
2018-04-12 06:36:59  checking for YUM updates... please wait...
2018-04-12 06:36:59 + [[ -f /etc/yum.repos.d/remi.repo ]]
2018-04-12 06:36:59 ++ /usr/bin/yum --disableplugin=priorities,versionlock -e 0 -d 0 check-update --enablerepo=remi '--exclude=nginx* php* mysql*'
2018-04-12 06:37:33 ++ echo 100
2018-04-12 06:37:33 + UPDATE_CHECK=100
2018-04-12 06:37:33 + [[ 100 = \1\0\0 ]]

Yum Check Duration: 34.00 seconds

------------------------------------------------------------------
Debugging centmin.sh menu option 24 exit routine completed
------------------------------------------------------------------