MySQL race condition.
Christopher Crowley
ccrowley@tulane.edu
Fri, 7 Dec 2001 10:03:26 -0600
In my previous e-mail I made reference to a race condition that occured
using kronolith. I don't have any log information to share. I am running
MySQL 3.22, and know that I need to upgrade. I will not be able to do so for
a few weeks because of scheduling issues. While a new MySQL might throttle
the runaway consumption of resources, it wouldn't address whatever is
triggering this loop.
Please inquire about additional relevant details. I am not exactly sure what
to investigate with this problem.
I determined that this was caused by clicking "Options" in kronolith.
Lines 14-15 kronolith/templates/menu/menu.inc produce the link:
if (($conf['prefs']['driver'] != '') && ($conf['prefs']['driver'] !=
'none')) {
Menu::printItem(Horde::applicationUrl('prefs.php'), _("Options"),
'prefs.gif', $registry->getGraphicsPath("horde"));
}
I am not logging in via horde, but rather through IMP. Clicking on Options
in IMP doesn't cause a problem.
As always, any suggestions are appreciated.
MySQL tables:
+---------------------+
| Tables in horde |
+---------------------+
| active_sessions |
| horde_prefs |
| imp_addr |
| imp_pref |
| kronolith_event_seq |
| kronolith_events |
| turba_objects |
+---------------------+
mysql> describe horde_prefs;
+------------+-------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------+-------------+------+-----+---------+-------+
| pref_uid | varchar(32) | | PRI | | |
| pref_scope | varchar(16) | | PRI | | |
| pref_name | varchar(32) | | PRI | | |
| pref_value | text | YES | | NULL | |
+------------+-------------+------+-----+---------+-------+
4 rows in set (0.00 sec)
mysql> describe kronolith_event_seq;
+-------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+------------------+------+-----+---------+----------------+
| id | int(10) unsigned | | PRI | 0 | auto_increment |
+-------+------------------+------+-----+---------+----------------+
1 row in set (0.00 sec)
mysql> describe kronolith_events;
+---------------------+--------------+------+-----+---------------------+---
----+
| Field | Type | Null | Key | Default |
Extra |
+---------------------+--------------+------+-----+---------------------+---
----+
| event_id | bigint(20) | | PRI | 0 |
|
| calendar_id | varchar(255) | | | |
|
| event_description | text | YES | | NULL |
|
| event_location | text | YES | | NULL |
|
| event_keywords | text | YES | | NULL |
|
| event_title | varchar(80) | YES | | NULL |
|
| event_category | varchar(80) | YES | | NULL |
|
| event_recurType | varchar(11) | YES | | 0 |
|
| event_recurInterval | varchar(11) | YES | | NULL |
|
| event_recurDays | varchar(11) | YES | | NULL |
|
| event_recurEnddate | datetime | YES | | NULL |
|
| event_start | datetime | | | 0000-00-00 00:00:00 |
|
| event_end | datetime | | | 0000-00-00 00:00:00 |
|
| event_alarm | int(11) | YES | | 0 |
|
+---------------------+--------------+------+-----+---------------------+---
----+
14 rows in set (0.00 sec)
>From marcus@riboflavin.net Date: Fri, 7 Dec 2001 09:40:08 -0600
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Date: Fri, 7 Dec 2001 09:40:08 -0600
From: "Marcus I. Ryan" <marcus@riboflavin.net>
To: kronolith@lists.horde.org
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Subject: Kronolith CVS: gregoriantojd not found
I just updated by entire horde setup through CVS. Now when I look at
a calendar in kronolith's month view, the first date that is on the
first day of a week reports
Fatal error: Call to undefined function: gregoriantojd() in
/usr/local/src/horde/kronolith/lib/Kronolith.php on line 193
and no more dates are displayed.
After looking around in my "PHP 4 Bible" book and configure --help, I
figured out what needs to happen is now when one installs PHP they
need to add --enable-calendar to their configure command-line. If
this is to remain a part of the code, it would be a good idea to add
this to the appropriate install docs.
--
Marcus I. Ryan, marcus@riboflavin.net
-----------------------------------------------------------------------
"Love is a snowmobile racing across the tundra and then suddenly it
flips over, pinning you underneath. At night, the ice weasels come."
-- Matt Groening
-----------------------------------------------------------------------
>From eculp@EnContacto.Net Date: Fri, 7 Dec 2001 10:41:48 -0800
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Subject: I just updated my cvs and got a Gregorian Error.
I get this in the lower left hand corner of my screen.
Fatal error: Call to undefined function: gregoriantojd() in
/usr/src/horde/kronolith/lib/Kronolith.php on line 193
I'm going to be sure I haven't miss one of the dist files.
Thanks,
ed
---
>From jan@horde.org Date: Fri, 7 Dec 2001 22:12:18 +0100
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Date: Fri, 7 Dec 2001 22:12:18 +0100
From: Jan Schneider <jan@horde.org>
To: kronolith@lists.horde.org
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Subject: Re: [kronolith] Kronolith CVS: gregoriantojd not found
Zitat von "Marcus I. Ryan" <marcus@riboflavin.net>:
> I just updated by entire horde setup through CVS. Now when I look at
> a calendar in kronolith's month view, the first date that is on the
> first day of a week reports
>
> Fatal error: Call to undefined function: gregoriantojd() in
> /usr/local/src/horde/kronolith/lib/Kronolith.php on line 193
>
> and no more dates are displayed.
>
> After looking around in my "PHP 4 Bible" book and configure --help, I
> figured out what needs to happen is now when one installs PHP they
> need to add --enable-calendar to their configure command-line. If
> this is to remain a part of the code, it would be a good idea to add
> this to the appropriate install docs.
Hm, we changed the way to calculate the week number because the old way
didn't work with windows. But we can change the code to not depend on the
Gregorian functions from the calendar library.
Jan.
::::::::::::::::::::::::::::::::::::::::
AMMMa AG - discover your knowledge
:::::::::::::::::::::::::::
Detmolder Str. 25-33 :: D-33604 Bielefeld
fon +49.521.96878-0 :: fax +49.521.96878-20
http://www.ammma.de
::::::::::::::::::::::::::::::::::::::::::::::
>From chuck@horde.org Date: Fri, 7 Dec 2001 16:27:14 -0500
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Date: Fri, 7 Dec 2001 16:27:14 -0500
From: Chuck Hagenbuch <chuck@horde.org>
To: kronolith@lists.horde.org
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Subject: Re: [kronolith] Kronolith CVS: gregoriantojd not found
Quoting Jan Schneider <jan@horde.org>:
> Hm, we changed the way to calculate the week number because the old way
> didn't work with windows. But we can change the code to not depend on the
> Gregorian functions from the calendar library.
I think this would be a good thing.
-chuck
--
Charles Hagenbuch, <chuck@horde.org>
"What was and what may be, lie, like children whose faces we cannot see, in the
arms of silence. All we ever have is here, now." - Ursula K. Le Guin
>From eculp@EnContacto.Net Date: Fri, 7 Dec 2001 13:36:22 -0800
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From: Edwin Culp <eculp@EnContacto.Net>
To: kronolith@lists.horde.org, Jan Schneider <jan@horde.org>
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Subject: Re: [kronolith] Kronolith CVS: gregoriantojd not found
Quoting Jan Schneider <jan@horde.org>:
> Zitat von "Marcus I. Ryan" <marcus@riboflavin.net>:
>
> > I just updated by entire horde setup through CVS. Now when I look at
> > a calendar in kronolith's month view, the first date that is on the
> > first day of a week reports
> >
> > Fatal error: Call to undefined function: gregoriantojd() in
> > /usr/local/src/horde/kronolith/lib/Kronolith.php on line 193
> >
> > and no more dates are displayed.
> >
> > After looking around in my "PHP 4 Bible" book and configure --help, I
> > figured out what needs to happen is now when one installs PHP they
> > need to add --enable-calendar to their configure command-line. If
> > this is to remain a part of the code, it would be a good idea to add
> > this to the appropriate install docs.
I did the --enable-calendar and it didn't change anything for me.
phpinfo shows --with-calendar. I'm using sql rather that mcal.
ed
>
> Hm, we changed the way to calculate the week number because the old way
> didn't work with windows. But we can change the code to not depend on the
> Gregorian functions from the calendar library.
>
> Jan.
>
> ::::::::::::::::::::::::::::::::::::::::
> AMMMa AG - discover your knowledge
> :::::::::::::::::::::::::::
> Detmolder Str. 25-33 :: D-33604 Bielefeld
> fon +49.521.96878-0 :: fax +49.521.96878-20
> http://www.ammma.de
> ::::::::::::::::::::::::::::::::::::::::::::::
>
> --
> Kronolith mailing list: http://horde.org/kronolith/
> Frequently Asked Questions: http://horde.org/faq/
> To unsubscribe, mail: kronolith-unsubscribe@lists.horde.org
>
>
---
>From chuck@horde.org Date: Fri, 7 Dec 2001 17:35:33 -0500
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From: Chuck Hagenbuch <chuck@horde.org>
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Subject: Re: [kronolith] Kronolith sql driver not using table-param
Quoting Martin List-Petersen <martin@list-petersen.dk>:
> it seems like kronolith is ignoring the 'table' field. I've trying to use
> another table-name .....
Committed (after being modified to match CODING_STANDARDS), thanks.
-chuck
--
Charles Hagenbuch, <chuck@horde.org>
"What was and what may be, lie, like children whose faces we cannot see, in the
arms of silence. All we ever have is here, now." - Ursula K. Le Guin
>From mike@graftonhall.co.nz Date: Sat, 8 Dec 2001 02:26:13 +0000
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Subject: Re: [kronolith] Kronolith CVS: gregoriantojd not found
Yes we can :-) He's a different algorithm... a bit slower as more comparisons
and calculations involved but gives the same result...
Index: kronolith/lib/Kronolith.php
===================================================================
RCS file: /repository/kronolith/lib/Kronolith.php,v
retrieving revision 1.44
diff -r1.44 Kronolith.php
192,197c192,214
<
< $J = gregoriantojd($month, $day, $year);
< $d = ($J + 31741 - ($J % 7)) % 146097 % 36524 % 1461;
< $L = floor($d / 1460);
< $correctedDayInYear = (($d - $L) % 365) + $L;
< return floor($correctedDayInYear / 7) + 1;
---
>
> $dayOfYear = Kronolith::dayOfYear($year,$month,$day);
> $dayOfWeek = Kronolith::dayOfWeek($year,$month,$day);
> $dayOfWeekJan1 = Kronolith::dayOfWeek($year,1,1);
>
> if ($dayOfYear <= 7-$dayOfWeekJan1 && $dayOfWeekJan1 > 3 ) {
> if ($dayOfWeekJan1 == 4 || ($dayOfWeekJan1 == 5 &&
Kronolith::isLeapYear($year-1)))
> return "53";
> else
> return "52";
> }
>
> if (Kronolith::isLeapYear($year))
> $daysInYear = 366;
> else
> $daysInYear = 365;
>
> if ($daysInYear - $dayOfYear < 3 - $dayOfWeek) return "1";
>
> $WeekNumber = floor(($dayOfYear + (6 - $dayOfWeek) +
$dayOfWeekJan1) / 7);
> if ($dayOfWeekJan1 > 3) { $WeekNumber -= 1; }
>
> return $WeekNumber;
Quoting Jan Schneider <jan@horde.org>:
>
> Hm, we changed the way to calculate the week number because the old way
> didn't work with windows. But we can change the code to not depend on the
> Gregorian functions from the calendar library.
>
> Jan.
>
> ::::::::::::::::::::::::::::::::::::::::
> AMMMa AG - discover your knowledge
> :::::::::::::::::::::::::::
> Detmolder Str. 25-33 :: D-33604 Bielefeld
> fon +49.521.96878-0 :: fax +49.521.96878-20
> http://www.ammma.de
> ::::::::::::::::::::::::::::::::::::::::::::::
>
> --
> Kronolith mailing list: http://horde.org/kronolith/
> Frequently Asked Questions: http://horde.org/faq/
> To unsubscribe, mail: kronolith-unsubscribe@lists.horde.org
>
>
>From paja@asp.ogi.edu Date: Sun, 9 Dec 2001 16:03:40 -0800
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Subject: error in your SQL syntax near 'NOW() NOT NULL
Hello,
I have tried to create table for kronolith (using kronolith/docs/kronolith.sql
from cvs) in mysql and get following error:
mysql> CREATE TABLE kronolith_events (
-> event_id bigint DEFAULT 0 NOT NULL,
-> calendar_id varchar(255) NOT NULL,
-> event_description text,
-> event_location text,
-> event_keywords text,
-> event_title varchar(80),
-> event_category varchar(80),
-> event_recurtype varchar(11) DEFAULT '0',
-> event_recurinterval varchar(11),
-> event_recurdays varchar(11),
-> event_recurenddate datetime,
-> event_start datetime DEFAULT NOW() NOT NULL,
-> event_end datetime DEFAULT NOW() NOT NULL,
-> event_alarm int DEFAULT 0,
-> PRIMARY KEY (event_id)
-> );
ERROR 1064: You have an error in your SQL syntax near 'NOW() NOT NULL,
event_end datetime DEFAULT NOW() NOT NULL,
event_alarm i' at line 13
mysql>
Any advice?
Thanks,
Pavel