Update results page missing session data, causing "Undefined index: update_success" notice and "aborted prematurely" message

Can you provide any additional details? I have not been able to reproduce this issue.

I get this error all the time on a vista box with xampp.

I'm not sure the exact cause of the problem but it raises it's ugly head when the update fails. when I traced it down further it appears to be related to a similar issue dealing with an empty sessions variable or cookie but don't remember the outcome of that particular issue. It seems that someone got around the issue by using IE and claimed it was a bug in firefox. I use firefox predominately and haven't tried a update using IE or one of the other browsers.

So it's fixed if it works. Changing status

Ummm,

No it is not fixed. Not on my dev machine anyway.

Have gotten it twice today.

But taking off critical, should actually be major

I'm seeing this issue as well.

I'm still seeing this issue. Normal upgrade on godaddy hosting.

Mike so that yesterday when trying to update a full D6 database we have. Promoting to critical, I suspect that the session handler is killing the session for some reason, investigating how this could happen.

Do we have/can we get some solid steps to reproduce this issue?

I saw this today, with brian_c, when running a test update on Visit Calgary - http://www.visitcalgary.com

However, attempts to recreate have been unfruitful. Brian and I are investigating further and will report in due course.

Unfortunately really nothing further to report, we saw this just ONCE (the very first time, as a matter of fact), and were unable to reproduce it again all day. Tried with and without clearing cookies/cache/etc first, no difference.

The one time it did happen was on nw's Macbook, using Firefox on a hand-rolled AMP stack. The site we used had cache cleared right before export, and was set to a theme that didn't exist in D7, if that has any bearing. We tried running update.php again when this happened, but update said there was nothing left to do, and we were able to run the site afterwards.

If this is an intermittent Firefox-only issue, that does not actually prevent upgrade from completing even when it does occur (has this actually made anyone's upgrade impossible?) maybe for now we can just address this by trapping the error (check for empty session in update_results_page()) and providing a friendlier message (which could suggest trying a non-Firefox browser if the problem persists), and perhaps also with a request to report it?

Hard to think of what else to suggest without a way to reproduce this reliably, and while not knowing the root cause is certainly worrisome and warrants continued investigation, it's not what I would consider a launch stopper? Not my call of course.

I'm also not sure the title of this issue is accurate, has anyone seen evidence that the process is actually aborted mid-way? Seems more like a browser-specific issue causing session to be unavailable when it hits the results page. But again, I've only seen it manifested once, so people who've seen it repeatedly please weigh in.

Yeah, this sounds a bit suspect. "Undefined index" is only an E_NOTICE level error, and shouldn't halt progression of any subsequent code. It looks ugly, but doesn't break anything (under normal circumstances).

I'm going to demote the priority of this issue and mark "needs more info" until someone can post back with information on how to reproduce.

Thanks for all your hard diagnostic work though. It's really great to rule things in or rule them out.

Tweaked title to be more accurate and slightly less alarming, while retaining same info

Ran an update on the latest HEAD from a DB dump from earlier today with update_free_access = true

Looking through the log after running the update, it appears the error appears after "Updating field type file with module file." -- "PDOException: SQLSTATE[23000]: Integrity constraint..." (I can't read the rest, admin/reports/event/### is blank...)

I know it's confusing, but "update.module" is for the part of core (added in 6.x) that checks for available updates to your modules and themes (now called the "Update manager" since it can also install/update your code). Sounds like y'all are talking about update.php, which is the "update system" component...

Just got this again today. Happens every time I do d6->d7 upgrade.

Steps I use.

start with a d6.19 database.

delete all prior d7 files on my dev machine, except sites.

use the same settings.php file I've previously used to do upgrades.

The sites/all/modules folder has no d6 modules in it, purposely stripped out but does have the latest cvs of coder and devel.

Since i'm NOT logged in $update_free_access has been set to true.

run the upgrade and get the infamous warning

* Notice: Undefined index: update_success in update_results_page() (line 162 of C:\sites\d6d7\update.php).
* Warning: reset(): Passed variable is not an array or object in update_results_page() (line 166 of C:\sites\d6d7\update.php).
* Warning: array_pop(): The argument should be an array in update_results_page() (line 166 of C:\sites\d6d7\update.php).

click the administration link it correctly goes to the site under maintenance page.

Log in

now set the timezone
and can access dblog.

log consists of:

    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:17pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:16pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:15pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:14pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:14pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:14pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:14pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    ctmattice    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    Guest (not verified)    
    php    10/09/2010 - 2:13pm    Notice: Undefined index: access in menu_tree_output(...    Guest (not verified)    
    cron    10/09/2010 - 1:52pm    Cron run completed.    Guest (not verified)    
    tracker    10/09/2010 - 1:52pm    Indexed 1000 nodes for tracking.    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Trying to get property of non-object in user...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Undefined index: 0 in user_node_load() (line...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Trying to get property of non-object in user...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Undefined index: 0 in user_node_load() (line...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Trying to get property of non-object in user...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Undefined index: 0 in user_node_load() (line...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Trying to get property of non-object in user...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Undefined index: 0 in user_node_load() (line...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Trying to get property of non-object in user...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Undefined index: 0 in user_node_load() (line...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Trying to get property of non-object in user...    Guest (not verified)    
    php    10/09/2010 - 1:52pm    Notice: Undefined index: 0 in user_node_load() (line...    Guest (not verified)    
    php    10/09/2010 - 1:51pm    Warning: array_pop(): The argument should be an array...    Guest (not verified)    
    php    10/09/2010 - 1:51pm    Warning: reset(): Passed variable is not an array or...    Guest (not verified)    
    php    10/09/2010 - 1:51pm    Notice: Undefined index: update_success in update...    Guest (not verified)    
    actions    10/09/2010 - 1:51pm    One orphaned action (user_block_ip_action) exists in...    Guest (not verified)    
    actions    10/09/2010 - 1:51pm    Action 'Ban IP address of current user' added.
    actions    10/09/2010 - 1:51pm    Action 'Save comment' added.    Guest (not verified)    
    actions    10/09/2010 - 1:51pm    Action 'Publish comment' added.    Guest (not verified)    
    field    10/09/2010 - 1:50pm    Updating field type file with module file.    Guest (not verified)    
    system    10/09/2010 - 1:50pm    file module enabled.    Guest (not verified)    
    system    10/09/2010 - 1:50pm    file module installed.    Guest (not verified)    
    field    10/09/2010 - 1:49pm    Updating field type list_text with module list.    Guest (not verified)    
    field    10/09/2010 - 1:49pm    Updating field type list_number with module list.    Guest (not verified)    
    field    10/09/2010 - 1:49pm    Updating field type list_boolean with module list.    Guest (not verified)
    system    10/09/2010 - 1:49pm    list module installed.    Guest (not verified)    
    field    10/09/2010 - 1:48pm    Updating field storage field_sql_storage with module...    Guest (not verified)    
    system    10/09/2010 - 1:48pm    field module enabled.    Guest (not verified)    
    system    10/09/2010 - 1:48pm    field module installed.    Guest (not verified)    
    system    10/09/2010 - 1:48pm    field_sql_storage module enabled.    Guest (not verified)    
    system    10/09/2010 - 1:48pm    field_sql_storage module installed.    Guest (not verified)    

Haven't been able to track down why I continually get this error. It's more annoying than anything. Other than the warning the site appears functional but would still like to know why this occurs. With the changes to what dblog now displays (HOORAY) I'm wondering if it has to do with the exception.

actions    10/09/2010 - 1:51pm    One orphaned action (user_block_ip_action) exists in...    Guest (not verified)  

Unfortunately if I click the link all that comes up is the "site under maintenance" page so I can't track it further.

I get the same error.

After upgrade imagefield imagefields and filefields are gone I dont know if it is related to this error.

Here is my error that I posted on the forum:

I got the following error when upgrading from 6 to 7:

* Notice: Undefined index: update_success in update_results_page() (line 162 of /home/site/public_html/7/update.php).
* Warning: reset(): Passed variable is not an array or object in update_results_page() (line 166 of /home/site/public_html/7/update.php).
* Warning: array_pop(): The argument should be an array in update_results_page() (line 166 of /home/site/public_html/7/update.php).

This happens with the latest dev version of 12 October 2010

the user 0 must have the uid 0 in the database. with uid > 0 e.g. 3, I get also these error messages.

Subscribing.

#24 is correct. After copying the DB with PHPmyadmin, uid = 0 gets replaced with uid = Max+1.

With RC1, resetting the uid to 0 before running the upgrade fixes things...

If #24 and #26 are correct, this is the classic "uid=0 missing" bug.

- production db is copied using phpMyAdmin (or similar), resulting sandbox/upgrade database has lost its uid=0 row
- anonymous users can no longer carry session data. SELECT u.*, s.* FROM {users} u INNER JOIN {sessions} s ON u.uid = s.uid WHERE s.sid = :sid in session.inc fails to find session data because of the INNER JOIN with a missing user row.
- upgrades performed as the anonymous user will fail
- mollom or other anonymous session-using modules fail
- etc.

This could all be avoided if you 1) manually create a uid=0 row after the copy, or 2) if Drupal just didn't depend on such INNER JOIN queries with a row that may not even be copied correctly. I'm marking this as a duplicate of #989852: Kill uid=0 requirement, an initiative for D8.

I can confirm that this happens when uid of anonymous user isn't 0.

Still duplicate with #989852: Kill uid=0 requirement, just repairing the component.

Looks like this is still a problem with the d6 -> d7 upgrade path (still happened to me on 7.18). Since this issue has been closed (?) I opened a new one here: #1870948: D6 -> D7 core upgrade path terminates prematurely when the users table does not have a row with uid 0