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Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
Drupal Deployment Troubles and Problems
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Drupal Deployment Troubles and Problems

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Drupal Camp Kyiv2010 (http://camp10.drupal.ua/) presentation about Troupbles and Problems during Deployment Drupal projects

Drupal Camp Kyiv2010 (http://camp10.drupal.ua/) presentation about Troupbles and Problems during Deployment Drupal projects

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  • 1. Drupal DTP<br />Deployment <br />Troubles and Problems<br />6.x<br /> @landike (Andrii Lundiak)<br />
  • 2. Deployment steps<br />
  • 3. Steps level<br />
  • 4. What we have today to discuss<br />Hosting environment worries<br />First install steps<br />Magic php.ini<br />This very helpful .htaccess file<br />We all like settings.php<br />Strange unbelievable error messages<br />or <br />Let find more Troubles and more Problems and Ways how to fix them.<br />
  • 5. Useful MySQL stuff<br /><ul><li>mysqlimport --password=mypass --user=myuserdbname dbname.sql;
  • 6. mysql -h DBSERVER -p -u username dbname &lt; dbname.sql
  • 7. mysqldump-u username -p dbname &gt; dbname.sql
  • 8. mysql -h DBSERVER -p -u username dbname &gt; dbname.sql </li></ul>Usemysql.cnffile to run easier<br />#---------------<br />[client]<br />user = myuser<br />password = mypass<br />host = DBSERVER<br />[mysql]<br />database = dbname<br />#-------------<br />mysql&lt; dbname.sql<br />
  • 9. Log Files<br />It&apos;s good to know what we have on hosting server and especially where Log files are. <br />To access the files directly on the server, on some Unix shells, you can type the following command:<br />tail -f /var/log/apache2/error.log<br />To check that you are looking at the right file, you may wish to type the following commands to find where the log files are.<br />grep &apos;ErrorLog&apos; /etc/apache2/*<br />grep &apos;ErrorLog&apos; /etc/apache2/*/*<br />
  • 10. Error Reporting<br />If error reporting is turned off, you could be getting a fatal error but not seeing it. On a production site, it is common to have error reporting turned off.<br />Take care to have in index.php:error_reporting(E_ALL);ini_set(&apos;display_errors&apos;, TRUE);ini_set(&apos;display_startup_errors&apos;, TRUE);<br />this will help in debug/test mode<br />
  • 11. Install and Go<br />Create Database … and enjoy easy installation<br />If some php settings are not in properly state, install process will tell you (about register_globals, mbstring.http_output, safe_mode, etc.)<br />
  • 12. php.ini magician<br />How to override php settings:<br />value of a configuration option in php.ini<br />.htaccess directives<br />using ini_set() in settings.php<br />or use control panel on your hosting server<br />or call to admin person<br />or change hosting server <br />
  • 13. Another way to override<br />If you have access to php.ini it’s AWESOME, and It’s great if you have your own php.ini near by www<br />On some hosting servers such kind of option is used to enable using local php.ini file:<br />ssuPHP_ConfigPath /hsphere/local/home/sitelocation<br />This setting must be located in .htaccess file<br />And php.ini file must exists in /hsphere/local/home/sitelocation/php.ini<br />
  • 14. Allowed memory size …<br />Fatal error: Allowed memory size of X bytes exhausted (tried to allocate Y bytes)...<br />Increase PHP&apos;s memory limit, up to 16MB or 24M or 32MB or especially 96MB for a site with built-in image processing using ImageAPI GD<br />memory_limit = 16M in your php.ini file. <br />or<br />php_valuememory_limit 16Min your .htaccessfile<br />or<br />ini_set(&apos;memory_limit&apos;, &apos;16M&apos;); in your settings.php file<br />???<br />
  • 15. Execution time of 30s exceeded<br />“Fatal error: Maximum execution time of 30 seconds exceeded in ….includesdatabase.mysql.inc on line XXX”<br />The default PHP timeout defined in php.ini is 30 seconds. This is too short for some activities like listing/enabling modules.<br />max_execution_time 120; (php.ini)<br />php_valuemax_execution_time 120 (.htaccess)<br />ini_set(‘max_execution_time’, ‘120’) (settings.php)<br />Set “max_execution_time “ = 3000 and Enjoy  (is very useful in testing stage)<br />
  • 16. Dear friend - .htaccess<br />.htaccess was not uploaded (Access Denied message, Disabled Clean urls)<br /><ul><li>RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]</li></ul>“PHP: Error parsing …” - () was in .htaccess comments<br />http://example.com -&gt; http://www.example.com<br /><ul><li># RewriteCond %{HTTP_HOST} ^example.com$ [NC]
  • 17. # RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301] </li></ul>http://www.example.com -&gt; http://example.com<br /><ul><li># RewriteCond %{HTTP_HOST} ^www.example.com$ [NC]
  • 18. # RewriteRule ^(.*)$ http://example.com/$1 [L,R=301]</li></li></ul><li>Lovely settings.php <br />$cookie_domain = &apos;example.com&apos;;<br /><ul><li>Drupal automatically generates a unique session cookie name for each site, based on full domain name
  • 19. This option is used in CKFinder configuring
  • 20. Do not miss it, going from dev-server to production-server</li></ul>Take care about file permission and $db_url and $update_free_access<br />Don’t forget, if you have $db_prefix, you should use {table} in SQL query build<br />
  • 21. WSOD (White Screen Of Death)<br />&quot;Invisible&quot; Errors or Blank Pages, how to fix:<br />SELECT * FROM watchdog LIMIT 20;<br />Easy manual quick-fixing <br /><ul><li>rename couple of modules step-by-step</li></ul>Dtools<br /><ul><li>bench_chart.module, wsod_emergency.php, wsod.module</li></ul>Increase CPU limit on hosting server<br /><ul><li>With low level (3-5%) some heavy pages will be “blank”</li></li></ul><li>Another silly mistakes<br />Whitespace at the Begin and End of a PHP File<br /><ul><li>See more about &lt;? and &lt;?php in short_open_tag “php configuration option” information
  • 22. God, bless IDEs, which remove trailing whitespace. Or you should take care with your coding </li></ul>“You are not authorized to access this page”<br /><ul><li>browser multi tab access
  • 23. block settings changes
  • 24. admin/build/themes on slow hosting</li></ul>To fix this issue: call drupal_flush_all_caches(); anywhere<br />
  • 25. Disabling Modules<br />Via the Module Administration Page in the UI<br />Administer &gt; Site Building &gt; Modules … Uncheck and Save<br />Via the Database<br />If your WSOD is caused by a specific module and you cannot access the module admin page, go to system table, set status to 0 and then clear the cache table<br />
  • 26. You should have cron<br />There are many ways to configure cron (curl, lynx, wget, even GET), but …<br />Here is real “drupal” way:<br />Change file permission for scripts/drupal.sh (chmoda+x scripts/drupal.sh)<br />Use in crontab file (or in Hosting Control Panel) this command:<br />/home/account/www/scripts/drupal.sh --root /home/account/www http://default/cron.php<br />PS. Cron is used by many modules: <br />Update, Event, Aggregator, Search, Notifications, Send, Image watermark, Watchdog and other which must run time-related tasks.<br />
  • 27. Suggestions Before Deployment<br />Be afraid free hosting with additional ads<br /><ul><li>admin/build/[modules|menu] doesn’t run
  • 28. admin/build/themes run with errors
  • 29. JavaScript/AJAX/XMLHttpRequest errors</li></ul>These actions would be great to do before/during/after deployment:<br />TRUNCATE TABLE watchdog;<br />drupal_flush_all_caches(); or “Clear Cached Data”<br />&quot;Rebuild Permissions&quot; in Post Settings page<br />“Re-Index site”<br />
  • 30. Think at first || rapid development<br />Masquarade module<br />Transliteration<br />Devel/Themer module<br />Drush module<br />“TEASER break” button in rich editor an Node-System<br />Use professional IDE<br />
  • 31. References<br />Drupal Deployment Checklist (!!)<br /><ul><li>http://www.metaltoad.com/blog/drupal-deployment-checklist</li></ul>General information about cron with Drupal<br /><ul><li>http://drupal.org/getting-started/6/install/cron</li></ul>Advanced Cron Modules<br /><ul><li>http://groups.drupal.org/node/17072/edit +++ http://www.drupalcron.org/</li></ul>Dtools module (WSOD tablet)<br /><ul><li>http://drupal.org/project/dtools/cvs-instructions</li></ul>Advanced PHP Error Handling via htaccess (!!!)<br /><ul><li>http://perishablepress.com/press/2008/01/14/advanced-php-error-handling-via-htaccess/</li></ul>Stupid htaccess Tricks (!!!)<br /><ul><li>http://perishablepress.com/press/2006/01/10/stupid-htaccess-tricks/</li></ul>Drupal Tweaks (helping with allocation of php memory size)<br /><ul><li>http://drupal.org/project/drupal_tweaks</li></ul>Drush - Drupal Shell utility <br /><ul><li>http://drupal.org/project/drush || http://groups.drupal.org/drush || http://drupal.org/node/477684</li></ul>Automating Drupal Deployment with drush_make and Features (!!!)<br /><ul><li>http://drupalcampaustin.org/sessions/automating-drupal-deployment-drushmake-and-features </li></ul>Install with Drush (!!! – GREAT short list of command to install)<br /><ul><li>http://knol.google.com/k/michael-chelen/how-to-install-drupal-using-drush/gxxp1ckx8nad/5# </li></li></ul><li>That’s all<br />Send me email. I’m here landike@gmail.com<br />Follow me in twitter @landike<br />Call me via Skype – lan_researcher<br />See my “media” updates on www.landike.mp<br />drupal user – LAN_DRUPAL<br />

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