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Moving to a new host [message #31266] Thu, 13 April 2006 19:26 Go to next message
Marticus   United States
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Registered: June 2002
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Hello. I have temporarily moved my forums form my linux host to a new host which seems to be having many problems. I am now moving it to another linux host. The forum dump seems to fail due to the same hardware issues that the intermediate host was having. I am transfering the files now but the process is painful as I have no shell access. Is there an easier way to do this? Maybe I can scp the entire thing from the first linux host to the new host and then transfer just the updated file and sql data. I have purged the attachments so it shouldn't be too difficult. Which files would I need to transfer to get the updated messages content?
Re: Moving to a new host [message #31269 is a reply to message #31266] Thu, 13 April 2006 19:43 Go to previous messageGo to next message
Marticus   United States
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The following is diff output from the two versions. Is it this simple? Is this all I really need to upload?

Files games/forumdata/errors/fud_errors and games.new/forumdata/errors/fud_errors differ
Files games/forumdata/errors/sql_errors and games.new/forumdata/errors/sql_errors differ
Files games/forumdata/messages/msg_100000 and games.new/forumdata/messages/msg_100000 differ
Files games/forumdata/messages/msg_120000 and games.new/forumdata/messages/msg_120000 differ
Files games/forumdata/messages/msg_160000 and games.new/forumdata/messages/msg_160000 differ
Files games/forumdata/messages/msg_30000 and games.new/forumdata/messages/msg_30000 differ
Files games/forumdata/messages/msg_40000 and games.new/forumdata/messages/msg_40000 differ
Files games/forumdata/messages/msg_70000 and games.new/forumdata/messages/msg_70000 differ
Files games/forumdata/messages/msg_80000 and games.new/forumdata/messages/msg_80000 differ
Files games/forumdata/messages/private and games.new/forumdata/messages/private differ
Only in games/images/custom_avatars: 8.jpg
Re: Moving to a new host [message #31271 is a reply to message #31269] Fri, 14 April 2006 02:14 Go to previous messageGo to next message
Marticus   United States
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Well, I've moved everything, changed all the paths and connection information, but the page times out. I should point out that I attempted to do a new install on the new host and I couldn't move beyond the WWW_ROOT_CHECK problem without commenting out that block of code in install.php. I didn't continue the installation when it made it to step 2 because I figured that check was there for a reason and if it failed, it might have something to do with not getting my old forums working on the new host. Why must I have so many problems migrating FUDforum?
Re: Moving to a new host [message #31278 is a reply to message #31271] Fri, 14 April 2006 20:30 Go to previous messageGo to next message
Ilia is currently offline  Ilia   Canada
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The WWW_ROOT_CHECK does not always work for all system configs, so you can safely comment it out.

As far as transfering files, you need to transfer the data entire data_dir directory and then make sure that the web server has write permission to all files/directories inside messages and files/ directories.


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Re: Moving to a new host [message #31289 is a reply to message #31278] Fri, 14 April 2006 21:05 Go to previous messageGo to next message
Marticus   United States
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I am looking through the code to find where it is hanging.

[Updated on: Fri, 14 April 2006 21:06]

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Re: Moving to a new host [message #31290 is a reply to message #31289] Fri, 14 April 2006 21:39 Go to previous messageGo to next message
Marticus   United States
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I have tracked it this far:

function db_li (called by ses_anon_make):
        if (mysql_errno(fud_sql_lnk) == 1062) {
                $ef = ltrim(strrchr(mysql_error(fud_sql_lnk), ' '));
die("this is as far as we go without hanging");
                return null;
        } else {

[Updated on: Fri, 14 April 2006 21:40]

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Re: Moving to a new host [message #31293 is a reply to message #31290] Fri, 14 April 2006 22:28 Go to previous messageGo to next message
Ilia is currently offline  Ilia   Canada
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Is it possible that your mysql_errno() does not return anything or returns 0/FALSE every time?

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Re: Moving to a new host [message #31295 is a reply to message #31293] Fri, 14 April 2006 23:18 Go to previous messageGo to next message
Marticus   United States
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If it executes die(), then surely that if statement is positive, or am I mistaken? I'm not sure how to proceed trouble shooting this.
Re: Moving to a new host [message #31302 is a reply to message #31295] Sat, 15 April 2006 16:39 Go to previous messageGo to next message
Ilia is currently offline  Ilia   Canada
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See how many times the duplication occurs

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Re: Moving to a new host [message #31306 is a reply to message #31302] Sat, 15 April 2006 18:56 Go to previous messageGo to next message
Marticus   United States
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Registered: June 2002
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I decided to run the upgrade script again. It seems to have fixed whatever was broken. The problem now, however, is that a few posts are blank. My guess is the file transfer happened before the sql dump so there may have been a few posts between the two steps. That is easily fixed. On the other hand, the fud26_attach table has hard links in it. Can I quickly fix this? Is there a way to regular expression search and replace in sql commands? Also, which tables can I dump, at minimum, to get the most recent messages along with the forum data messages dir?

[Updated on: Sat, 15 April 2006 18:58]

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Re: Moving to a new host [message #31312 is a reply to message #31306] Sun, 16 April 2006 18:17 Go to previous messageGo to next message
Ilia is currently offline  Ilia   Canada
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You don't need regex to fix data in that table, the MySQL REPLACE() function would do, simply replace the old path prefix with the new one.

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Re: Moving to a new host [message #31333 is a reply to message #31312] Tue, 18 April 2006 12:08 Go to previous messageGo to next message
Marticus   United States
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Is it worth adding that to forum consistency check or maybe a new admin link to resolve issues from having moved to a new location/host or something.

[Updated on: Tue, 18 April 2006 12:09]

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Re: Moving to a new host [message #31340 is a reply to message #31333] Tue, 18 April 2006 13:44 Go to previous messageGo to next message
Ilia is currently offline  Ilia   Canada
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If you use datadump/dataimport it has handling for dealing with the new host. Putting the code into consistency checker would be requite slow, mostly because there is a lot of changes to make and would be quite slow to perform.

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Re: Moving to a new host [message #33140 is a reply to message #31266] Sat, 12 August 2006 22:12 Go to previous message
Abraxa is currently offline  Abraxa   Germany
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I ran into the problem with db_li() myself and wanted to note that the problem was caused by the id colum in fudXX_ses not being set to auto_increment. I exported the database using mysqldump and imported it on the new host. Somehow the database dump was however incomplete and all table structures had their "auto_increment" flags missing.
I fixed this by exporting the data alone, wiping all tables, re-creating the tables from an older export that worked, truncated all tables and re-importing the data I saved as the first step.

Hope this will help someone in the future who runs into this post.

-Abraxa
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