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Technical
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Sunday, 23 January 2005 01:59 |
I went to meet Amar, my boss , to discuss about my team .. and there he is, saying everything that I hate to hear . .
"Yes Sojish , I have asked you to
just help your team mates .. but that
doesnt mean that you shouldnt do anything
. If I had been in your place , I would have been studying a lot of
technical things , taking classes etc . And look at yourself , you have
become a lazy bump now !! You have found special methods in whiling
away your time . Do s'thing that would churn the stuff inside your head
.. "
and he was right .. he charged me up . If I had seen an elephant
outside , I would have smashed it into pulp. (no smilies ;-))
I went back lightened up to the development room .. and there she is ..
my trusted deputy Lincy darling . She was digging into the php upgrades
whenever she had time , and that gave me the initial kick start . PHP
upgrade... my all time favourite . Within 1 month since I joined
poornam , I was upgrading PHP in servers from 4.3.0 to 4.3.1 .( thats
almost 2 years back ) .. and my server is still left with PHP 4.1.2 ..
Shaaame on you, Sojish . Forgot the good old days ?? When all the gals
would come asking you the doubts in PHP upgrade ... What a life that
was ? ( pweeeh ) .
Njan ninachal puliye pidikkaren ..
If I can put my mind into it , I can catch a Tiger !!!.......... and
now I've put my mind.
Went to plesk forum .. searched a while until I got the link to atomicrocketturtle.com. Everybody is thanking them for their rpms ..
and there I got all the required stuffs I wanted .
And,
when you want something, all the universe conspires in helping you to
achieve it. Its called beginner's luck (p23,
The Alchemist by
Paulo Coelho )
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I had time .. so I thought I would do a rpm rebuild . Did a couple of
round ..which took almost 5 hours and installed rpms ( i lost the count
after sometime ) .. and finally got a libphp4.so .. Now is the moment .
I called my team mates and said .. hey I got it .. and I'm going to do
a restart of apache ..
CRASH !!! libphp4.so cannot be loaded because of some OpenSSL function
not being present... DING DONG .. switched back to old libphp4.so and
apache started working again . Thank god . I went to sleep .
Sleep was disturbed by the cries of visakh ... webmail not working in
server . Thats bad , I woke up and went upstairs to restroom...
and slept peacefully!!!
Day2
Got up at around 11 .. Lincy said , that a client is having difficulty
using mysql_connect () ... Ghosh ..
cleared my mind .. had food and came back later in the afternoon . I'm
going to make it this time.
I realised that its not possible to do rpm --rebuild .. because the new
php source requires latest open ssl , curl .. blah blah and blah .
removed the existing php rpms , Downloaded the new rpm binaries ..
Did a normal installation first for each rpm . Saved all the errors in
my mind .. and then forced the installations . Everything normal till
now .
restart of apache .. CRASH
Cannot load
/etc/httpd/modules/libphp4.so into server:
/etc/httpd/modules/libphp4.so: undefined symbol: xsltSaveResultToString
Tried to install , libxslt rpm and it asked for libxml which asked for
js .... pweeh . installed all of them in reverse order .
restart of apache ... Successful . : ( Yaaaaaaaahooooooooooooooo)
Took the phpinfo in browser .. coool its upgraded . But something is
wrong . .. mysql is only listed in the configure command . No further
details are provided . Edited the php.ini to load mysql.so .. and
restarted apache .. Still mysql is not showing .
Then I remebered the error when installing php-mysql rpm .
error: failed dependencies:
libmysqlclient.so.12 is needed by php-mysql-4.3.8-sp.rh73.1
Searched for libmysqlclient.so.12 , and realised that it requires
latest mysql . Checking the atomicrocketturtle site told that .. an
upgrade of mysql is not a sure stuff . It can cause major problems with
psa too .. So I removed that bad thought from my mind . Tried a work
around by linking the existing libmysqlclient with the old one . ..
restarted apache .. but still its not showing mysql .
Oops forgot onething . Just a link would not load the shared lib
to
memory . I have to do a "ldconfig" .. did that .. and restarted apache
.... thaaaat did it . Everydetails of mysql is shown in the phpinfo
The clients issue of mysql_connect() is solved . Now the webmail ..
atomicrocket have said about editing the sendmail.php file .. but still
on taking the horde in browser gave warnings . Edited the php.ini to
remove the warnings ... and restarted the apache again .
that turned out to be the last restart of apache .. I made it .. I DID
IT ...
In
his pursuit of the dream, he was being constantly subjected to tests of
his persistence and courage. So he could not be hasty, nor impatient.
If he pushed forward impulsively, he would fail to see the signs and
omens left by God along his path. (p93)
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Day 3 .
Ginu gave me the bad news .... Somebody's blog stopped working after
the upgrade was done .
Tried taking his site in the browser .. it shows done .. though the
page was blank .
Went to backend and changed to his blog directory and tried to execute
the script using binary php
[root@myserver blog]# php index.php
Segmentation fault
[root@myserver blog]
A segmentation fault is every admins night mare .. I was always lucky
because we never did any upgrades or re-compilations . But here I'm
left in dark to find out whats causing the seg fault .
Inserted a "echo : Error here" line in the page and moved the line
around until I found that the issue is with a line , containing ...
"mysql_fetch_array() . Figuring this out took me almost 4 hours .
Wish I have mastered other debugging tools.
Now .. the usual ... Google .... Searched for mysql_fetch_array php
segmentation fault and found this
http://bugs.php.net/bug.php?id=23490
incompatibilities with mysql 3.23.58 and php 4.3.4 + .... its because
the latest php versions are compiled with mysql 4 library .
That brought the last days events back to my mind ... I did a work
around by linking libmysqlclient.so.12 to the old libmysqlclient . .. I
remember my dad telling me , shortcuts and workarounds are not
permanent .. and here it is smiling straight at my face .
| Complex
problems have simple, easy to understand wrong answers. ....
unknown |
I cant upgrade mysql .. PHP upgrade wont work without the later mysql.
Kya karen .
Smoking around .. I made a POA . Remove the link libmysqlclient.so.12
and put an actual lib file there. so I downloaded the latest
mysql-shared rpm to the local machine . extracted it with "--relocate"
option , so that it wont ruin the current configuration . Then uploaded
it to server .
did an ldconfig and restarted apache .
Its working again .. the blog is working .. mysqlfetch array is working
... Day 3 ended with more happiness than yesterday .
:-)
Steps to upgrade to php 4.3.8 in
RedHat 7.3 using RPM
1) Download http://sojish.com/php_upgrade/php_4.1.2_to_4.3.8.tgz
2) tar -xzf php_4.1.2_to_4.3.8.tgz
3) cd php_upgrade
4) Run the steps given in upgrade.sh manually.. or
run bash# sh upgrade.sh
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Steps to upgrade to php 4.3.10
1) Make sure that you upgraded php to php 4.3.8 given in previous steps
2) upgrade to 4.3.10
wget http://sojish.com/php_upgrade/php_4.3.8_to_4.3.10.tgz .
cp -p /etc/php.ini /etc/php.ini.bkp
tar -xzf php_4.3.8_to_4.3.10.tgz
cd php_4.3.10
rpm -ev --nodeps `rpm -qa | grep ^php`
rpm -ivh *.rpm
cp -p /etc/php.ini.bkp /etc/php.ini
/etc/rc.d/init.d/httpd restart
thats done with php .. check phpinfo .. to make sure .. php
upgrade has
happened .
3) Install zend ..
tar -xzf ZendOptimizer.tgz
cd ZendOptimizer-2.5.7-linux-glibc21-i386/
./install
its all default values ... and once done .. press
restart .
That does it .
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Steps to add Curl support to
php 4.3.10
1) wget http://sojish.com/php_upgrade/curl.so
ln -s /usr/lib/libcrypto.so.0.9.6 /usr/lib/libcrypto.so.0.9.6.1
ln -s /usr/lib/libssl.so.0.9.6 /usr/lib/libssl.so.0.9.6.1
ldconfig
cp -pr curl.so /usr/lib/php4/
Edit the php.ini to load curl.so
vi /etc/php.ini
Below the line .. : extension=imap.so add
extension=curl.so
restart httpd ...
/etc/rc.d/init.d/httpd restart
You are done ... check the phpinfo ... to make sure that curl has been
enabled .
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