Re: Where is mysql-workbench SCM?

2015-10-16 Thread Karl-Philipp Richter
Found it (after some days of searching):
https://code.launchpad.net/ubuntu/+source/mysql-workbench must be the
official repository according to
https://dev.mysql.com/doc/refman/5.7/en/installing-development-tree.html.

-Kalle

Am 15.10.2015 um 22:11 schrieb Karl-Philipp Richter:
> Hi,
> The only list of mysql-related SCM repositories I found was
> https://github.com/mysql which didn't contain a repository for
> `mysql-workbench`. I only found the source tarball at
> http://dev.mysql.com/downloads/workbench/. The development section at
> http://dev.mysql.com/downloads/workbench/ doesn't explain the
> development of `mysql-workbench`.
> 
> Any help or pointers are appreciated.
> 
> -Kalle
> 



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Where is mysql-workbench SCM?

2015-10-15 Thread Karl-Philipp Richter
Hi,
The only list of mysql-related SCM repositories I found was
https://github.com/mysql which didn't contain a repository for
`mysql-workbench`. I only found the source tarball at
http://dev.mysql.com/downloads/workbench/. The development section at
http://dev.mysql.com/downloads/workbench/ doesn't explain the
development of `mysql-workbench`.

Any help or pointers are appreciated.

-Kalle



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Event feature already working in Server 5.1.37

2010-01-23 Thread Philipp Maske [Location Bretagne]
Hi,

 

I just wanted to remark, that the Event feature is already working in server
version 5.1.37 (installed on Debian).

 

In tech resources is mentioned that this feature would be available since
version 5.1.6 (see
http://dev.mysql.com/tech-resources/articles/event-feature.html). So I
wanted to give up using it- but fortunately I tried it on my 5.1.37 server
and it works fine..

 

So I you have a MySQL server version prior 5.1.6 an need the Event feature -
I suggest just give it a try .

 

Friendly

 

Philipp Maske

Software Developer

 

Dipl.-Oec. Philipp Maske

Location Bretagne

Maske  Maske GbR Ferienhausvermittlung

Am Wasserturm 13

31303 Burgdorf b. Hannover

Deutschland / Allemagne

 

Email:  mailto:i...@location-bretagne.de i...@location-bretagne.de

WWW:  http://www.location-bretagne.de www.location-bretagne.de

Mobile: +49 (0)172 4523977

OpenBC:  http://www.openbc.com/hp/Philipp_Maske
http://www.openbc.com/hp/Philipp_Maske



fulltext substringsearches?

2007-03-20 Thread Philipp Wabinski

Hi,

can somebody tell me, if it`s possible to search for substrings with a
fulltext search?

We are using a fulltextsearch in boolean mode. I tried a lot but the search
doesn`t find any substrings.

The mysql reference just hast got an example like this:

apple* that finds everything that begins with apple.

Is it possible to seachr for *ppl* and find entries that contain apple or
something like this without a like-search and and a full table scan?

Thanks for any help

Philipp
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Can't connect to local MySQL server through socket

2005-03-22 Thread Philipp Snizek
Hi

according to Dr Google I'm not the first one to encounter this error
below.

SpamAssassin: invoked with 'spamd -D -q -u filter'

failed to load user (filter) scores from SQL database: SQL Error:
Can't connect to local MySQL server through socket
'/var/lib/mysql/mysql.sock' (13)

Thus, I cannot read SpamAssassin preferences from the database.

I checked for the sticky bit on mysql.sock. No change.
I added all in /var/lib/mysql/ to the 'daemon' group. No change.

I hope somebody here can help me. I'm pretty much lost with this.

Thanks
Philipp

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RE: referencial integrity problem

2005-02-23 Thread Philipp Snizek
Hi

 Hello.
 
 What output does the following statement produce:
 
  show variables like 'have_innodb'; 

mysql show variables like 'have_innodb';
+---+---+
| Variable_name | Value |
+---+---+
| have_innodb   | YES   |
+---+---+
1 row in set (0.00 sec)


Philipp

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RE: referencial integrity problem

2005-02-23 Thread Philipp Snizek
 Hi

thanks for your help and your answers, it works now.
foreign key (ownerdomain) references domains(domain) on delete cascade
   ^^
 was missing.


Philipp



 -Original Message-
 From: Philipp Snizek [mailto:[EMAIL PROTECTED] 
 Sent: Mittwoch, 23. Februar 2005 11:22
 To: mysql@lists.mysql.com
 Subject: RE: referencial integrity problem
 
 Hi
 
  Hello.
  
  What output does the following statement produce:
  
   show variables like 'have_innodb';
 
 mysql show variables like 'have_innodb';
 +---+---+
 | Variable_name | Value |
 +---+---+
 | have_innodb   | YES   |
 +---+---+
 1 row in set (0.00 sec)
 
 
 Philipp
 
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referencial integrity problem

2005-02-22 Thread Philipp Snizek
Hi

I run a Postfix MTA attached to a mysql DB with various domains on it.
A domain consists of email addresses.
When I want to delete the domain the referenced email addresses should
be deleted, too. But that doesn't work and I don't know why.

here are the two tables domains and users:

CREATE TABLE domains (
  ID_DOMAINS int(11) auto_increment,
  active int(1) not null,
  domain varchar(50) NOT NULL,
  PRIMARY KEY (ID_DOMAINS)
) TYPE=MyISAM;

create table users (
email varchar (80) primary key unique not null, belongs_to integer not
null, foreign key (belongs_to) references domains on delete cascade );

if I use the delete command like delete from domains where
id_domains='1' the dataset that belongs to id 1 in domains is deleted
while the email addresses belonging to this domain are left untouched.

What am I missing?

thanks
Philipp

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RE: referencial integrity problem

2005-02-22 Thread Philipp Snizek
 
 Foreign keys are only supported within InnoDB tables (on both
sides)..

so using a table 'users' like 

create table users (
  email varchar (80) primary key unique not null, 
  belongs_to integer not null references domains on delete cascade 
);

without foreign keys could help?
I couldn't make it work that way either. 

Philipp

 Hi
 
 I run a Postfix MTA attached to a mysql DB with various 
 domains on it. A
 domain consists of email addresses. When I want to delete the 
 domain the
 referenced email addresses should be deleted, too. But that 
 doesn't work
 and I don't know why.
 
 here are the two tables domains and users:
 
 CREATE TABLE domains (
   ID_DOMAINS int(11) auto_increment,
   active int(1) not null,
   domain varchar(50) NOT NULL,
   PRIMARY KEY (ID_DOMAINS)
 ) TYPE=MyISAM;
 
 create table users (
 email varchar (80) primary key unique not null, belongs_to integer
not
 null, foreign key (belongs_to) references domains on delete cascade
);
 
 if I use the delete command like delete from domains where
 id_domains='1' the dataset that belongs to id 1 in domains is
deleted
 while the email addresses belonging to this domain are left
untouched.
 
 What am I missing?
 
 thanks
 Philipp
 
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RE: referencial integrity problem

2005-02-22 Thread Philipp Snizek
 
 You need to make *both* of your table definitions include 
 Type=InnoDB; *then*, the cascading delete should work fine.

This is what I have done upon Keith's suggestion. I have changed all
my tables to Type=innodb.
Still nothing. Maybe mysqlcc or mysql administrator deliver wrong
information?
Deleteting the record in Table domains leaves the record in Table
users referencing domains untouched. 
Or is my sql script bad? I'm already spending hours on that.

CREATE TABLE domains (
  ID_DOMAINS int(11) auto_increment,
  active int(1) not null,
  domain varchar(50) NOT NULL,
  PRIMARY KEY (ID_DOMAINS)
) type=innodb;

Either this 'users' Table:
create table users (
  email varchar (80) primary key unique not null,
  belongs_to integer not null references domains on delete cascade
) type=innodb;  

or this 'users' Table:
create table users (
  email varchar (80) primary key unique not null,
  belongs_to integer not null,
  foreign key (belongs_to) references domains on delete cascade
) type=innodb;


Philipp 
 
 Rhino
 
 - Original Message -
 From: Philipp Snizek [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]; Mysql List (E-mail) 
 mysql@lists.mysql.com
 Sent: Tuesday, February 22, 2005 7:49 AM
 Subject: RE: referencial integrity problem
 
 
 
  Foreign keys are only supported within InnoDB tables (on both
 sides)..
 
 so using a table 'users' like
 
 create table users (
   email varchar (80) primary key unique not null,
   belongs_to integer not null references domains on delete cascade
 );
 
 without foreign keys could help?
 I couldn't make it work that way either.
 
 Philipp
 
  Hi
 
  I run a Postfix MTA attached to a mysql DB with various
  domains on it. A
  domain consists of email addresses. When I want to delete the
  domain the
  referenced email addresses should be deleted, too. But that
  doesn't work
  and I don't know why.
 
  here are the two tables domains and users:
 
  CREATE TABLE domains (
ID_DOMAINS int(11) auto_increment,
active int(1) not null,
domain varchar(50) NOT NULL,
PRIMARY KEY (ID_DOMAINS)
  ) TYPE=MyISAM;
 
  create table users (
  email varchar (80) primary key unique not null, belongs_to integer
 not
  null, foreign key (belongs_to) references domains on delete
cascade
 );
 
  if I use the delete command like delete from domains where
  id_domains='1' the dataset that belongs to id 1 in domains is
 deleted
  while the email addresses belonging to this domain are left
 untouched.
 
  What am I missing?
 
  thanks
  Philipp
 
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RE: InnoDB Row Lock test (A query maybe?)

2005-02-22 Thread Philipp Snizek

Hi

I must be blind. Please help a DB-Newbie. What's wrong here:

create table users (
  email varchar (80) unique not null,
  ownerdomain int not null,
  foreign key (ownerdomain) references domains on delete cascade
) type=innodb;

MySQL sais: ERROR 1005: Can't create table './postfix/users.frm'
(errno: 150)

Where can I lookup up error codes?

Thanks
Philipp

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Mysql 4.0.18 crashed6384512

2004-03-31 Thread Philipp Steinkrüger
The manual page at http://www.mysql.com/doc/en/Crashing.html contains
information that should help you find out what is causing the crash.
040316 16:27:10  InnoDB: Database was not shut down normally.
InnoDB: Starting recovery from log files...
InnoDB: Starting log scan based on checkpoint at
InnoDB: log sequence number 0 3044349028
InnoDB: Doing recovery: scanned up to log sequence number 0 3044402982
040316 16:27:10  InnoDB: Starting an apply batch of log records to the database...
InnoDB: Progress in percents: 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 
88 89 90 91 92 93 94 95 96 97 98 99 
InnoDB: Apply batch completed


Regards,
Philipp






memory leaks

2003-08-19 Thread Johannes Philipp Grohs
Hello,

I am using the mysqlclient library 4.0.14 on win2k.
It works fine but there are memory leaks I have no solutions for.
I have tried this:

int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
MYSQL MySQL;
mysql_init(MySQL);
mysql_close(MySQL);
mysql_thread_end();
return 0;
}
... but in the debug mode I get results like this:

	Detected memory leaks!
	Dumping objects -
	{52} normal block at 0x00974088, 556 bytes long.
	 Data: 00 00 00 00 C8 00 00 00 00 00 00 00 00 00 00 00 
	Object dump complete.

Do you know how to avoid this problem?

Thank you very much

	Philipp Grohs

PS: I am working with MS Visual C++ 6.0

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Re: Selected items delete

2003-04-02 Thread Philipp Specht
Hi!

Pag wrote:
If i was too confusing, maybe this helps: How can i delete the 
records whose num field is 4,78,34 and 23, all in one command? 
Something along delete * in 'table' where num=1 and num=13 and num=34 
etc.
DELETE FROM table WHERE num=1 OR num=13 OR num=34

or better:

http://www.mysql.com/doc/en/index.html -- search for delete :o)

Bye,
phly
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Re: Process Limit on Linux ?

2003-03-19 Thread Philipp
Hi Joseph,

thank you for your answer. While i was reading
about clustering some weeks ago i read the openmosix
FAQ claiming that openmosix would not work with apache,
because apache was using shared memory to communicate
with its threads, and i always thought mysql is designed
the same way. Please someone correct me if i am wrong.

Regards,
Philipp


On Wed, 19 Mar 2003 10:41:21 +0100
Joseph Bueno [EMAIL PROTECTED] wrote:

 Hi,
 
 Since shm (shared memory) in Unix/Linux is only used to share memory
 between independent processes and mysql server is a single process
 (multi-threaded), I am convinced that shmmax value has no consequence
 on mysql. (OTOH Oracle has a multiprocess architecture and uses
 shared memory).
 
 Hope this helps,
 Joseph Bueno
 
 Philipp wrote:
  Dear Walt, dear List,
  
  
  thank you for your reply. Finally a suggestions at all.
  I checked both
  
  /proc/sys/kernel/threads-max
  /proc/sys/kernel/shmmax
  
  I dont think threads-max will be a problem, because the value is 14336,
  and i dont think my system will ever have to handle this number of threads.
  
  But researching shmmax at google i got several hits. Most are dealing with
  postgres but perhaps its the same with mysql.
  
  shmmax ist 32 MB. on one page the author suggest to raise this value to 128
  MB.
  
  What are your suggestions for the values:
  
  shmall  shmmax  shmmni ?
  
  
  Thank you very much,
  Yours Philipp
  
  - Original Message -
  From: walt [EMAIL PROTECTED]
  To: Philipp [EMAIL PROTECTED]
  Cc: [EMAIL PROTECTED]
  Sent: Monday, March 17, 2003 6:48 PM
  Subject: Re: Process Limit on Linux ?
  
  
  
 Philipp wrote:
 
 Hi there,
 
 i wrote several times to the list asking for help with a problem
 regarding process limits on linux, but never got an answer.
 today i found this story:
 
 http://www.mysql.com/press/user_stories/handy.de.html
 
 here are the relevant sentences:
 
 We had some process limit problems on our Linux Systems,
 but thanks to your support we where able to patch the linux boxes
 and move the limit to a size that meets our needs (we've got an average
  
  of
  
 about
 1600 concurrent threads per server).
 
 These people use 2.2 Kernels so i dont know if the mentioned kernel and
 glibc
 patching is also relevant for me, as i am using 2.4 kernels only.
 
 Here is my problem in detail:
 
 i am using mysql-3.23.55 binary packages on linux 2.4.20 and i raised
  
  ulimit
  
 values and configuration in my.conf to allow more then 1500 threads. but
 when
 there are around 750 threads a new client connecting is told something
  
  like
  
 that (dont have the errno at the moment, i think its 11):
 
 cant create new thread, perhaps you are out of memory or there is a
 os-depended bug.
 
 The machine only runs apache and mysql and is a Xeon 2x2 2.4 Gz with 2
  
  GB of
  
 RAM.
 cat /proc/meminfo sais that more then 1 Gig is used for caching, so
  
  memory
  
 should be no
 problem .
 
 Please, if you have any ideas, let me know. If it is a kernel issue,
  
  tell me
  
 to go to linux mailing lists
 or if its some kind of secret issue only the support will be able to
 answer let me know that.
 
 Thanks in advance,
 Philipp
 
 -
 Before posting, please check:
http://www.mysql.com/manual.php   (the manual)
http://lists.mysql.com/   (the list archive)
 
 To request this thread, e-mail [EMAIL PROTECTED]
 To unsubscribe, e-mail
  
  [EMAIL PROTECTED]
  
 Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
 
 Philipp,
 Did you check /proc/sys/kernel/threads-max? I know with oracle 8i, you
 are supposed to increase  /proc/sys/kernel/shmmax as well as some other
 values. You might check into that and see if changing those values will
 help.
 Does your syslog say anything when these problems occur?
 
 walt
 
 walt
 
  
 
 


-- 


-
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Oberberg Online Informationssysteme GmbH
Technik
http://www.oberberg.net

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Re: Process Limit on Linux ?

2003-03-19 Thread Philipp
Hi Dan,


i just talked about openmosix because i read about
shared memory segments. my only desire is to make mysql
able to spawn 1000-1500 connections and *not* to tell
my client cant create new thread, perhaps out of memory
while 1.5 GB of RAM is only used for caching. Is that really
possible that mysql is not able to handle this amount of connections ?

My best Regards,
Philipp


On Wed, 19 Mar 2003 10:01:38 -0600
Dan Nelson [EMAIL PROTECTED] wrote:

 In the last episode (Mar 19), Philipp said:
  thank you for your answer. While i was reading about clustering some
  weeks ago i read the openmosix FAQ claiming that openmosix would not
  work with apache, because apache was using shared memory to
  communicate with its threads, and i always thought mysql is designed
  the same way. Please someone correct me if i am wrong.
 
 SYSV shared memory (shm*) is a block of memory that one process
 creates, and depending on the access flags, multiple processes can
 attach to and see each other's changes.
 
 Threads use shared memory by definition, because a threaded application
 is still one process.  No SYSV shm tricks are needed.
 
 Openmosix won't be able to balance mysql threads, because even if it
 were possible to synchronize shared memory between machines with Mosix,
 synching thread mutexes would be horrendously slow.  Better to just get
 a multi-CPU box.
 
 -- 
   Dan Nelson
   [EMAIL PROTECTED]
 


-- 


-
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Oberberg Online Informationssysteme GmbH
Technik
http://www.oberberg.net

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Re: Process Limit on Linux ?

2003-03-18 Thread Philipp
Dear Walt, dear List,


thank you for your reply. Finally a suggestions at all.
I checked both

/proc/sys/kernel/threads-max
/proc/sys/kernel/shmmax

I dont think threads-max will be a problem, because the value is 14336,
and i dont think my system will ever have to handle this number of threads.

But researching shmmax at google i got several hits. Most are dealing with
postgres but perhaps its the same with mysql.

shmmax ist 32 MB. on one page the author suggest to raise this value to 128
MB.

What are your suggestions for the values:

shmall  shmmax  shmmni ?


Thank you very much,
Yours Philipp

- Original Message -
From: walt [EMAIL PROTECTED]
To: Philipp [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Monday, March 17, 2003 6:48 PM
Subject: Re: Process Limit on Linux ?


 Philipp wrote:
 
  Hi there,
 
  i wrote several times to the list asking for help with a problem
  regarding process limits on linux, but never got an answer.
  today i found this story:
 
  http://www.mysql.com/press/user_stories/handy.de.html
 
  here are the relevant sentences:
 
  We had some process limit problems on our Linux Systems,
  but thanks to your support we where able to patch the linux boxes
  and move the limit to a size that meets our needs (we've got an average
of
  about
  1600 concurrent threads per server).
 
  These people use 2.2 Kernels so i dont know if the mentioned kernel and
  glibc
  patching is also relevant for me, as i am using 2.4 kernels only.
 
  Here is my problem in detail:
 
  i am using mysql-3.23.55 binary packages on linux 2.4.20 and i raised
ulimit
  values and configuration in my.conf to allow more then 1500 threads. but
  when
  there are around 750 threads a new client connecting is told something
like
  that (dont have the errno at the moment, i think its 11):
 
  cant create new thread, perhaps you are out of memory or there is a
  os-depended bug.
 
  The machine only runs apache and mysql and is a Xeon 2x2 2.4 Gz with 2
GB of
  RAM.
  cat /proc/meminfo sais that more then 1 Gig is used for caching, so
memory
  should be no
  problem .
 
  Please, if you have any ideas, let me know. If it is a kernel issue,
tell me
  to go to linux mailing lists
  or if its some kind of secret issue only the support will be able to
  answer let me know that.
 
  Thanks in advance,
  Philipp
 
  -
  Before posting, please check:
 http://www.mysql.com/manual.php   (the manual)
 http://lists.mysql.com/   (the list archive)
 
  To request this thread, e-mail [EMAIL PROTECTED]
  To unsubscribe, e-mail
[EMAIL PROTECTED]
  Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php

 Philipp,
 Did you check /proc/sys/kernel/threads-max? I know with oracle 8i, you
 are supposed to increase  /proc/sys/kernel/shmmax as well as some other
 values. You might check into that and see if changing those values will
 help.
 Does your syslog say anything when these problems occur?

 walt

 walt



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Re: Process Limit on Linux ?

2003-03-18 Thread Philipp
Hi Walt,


i am using PHP to generate the connections. The maximum
was around 750 Connections. I am sure it never was more
then 800. At the moment i have queries per second avg: 548.286


Regards,
Philipp

- Original Message -
From: walt [EMAIL PROTECTED]
To: Philipp [EMAIL PROTECTED]
Sent: Tuesday, March 18, 2003 7:11 PM
Subject: Re: Process Limit on Linux ?


On Tuesday 18 March 2003 01:01 pm, you wrote:
 Dear Walt, dear List,


 thank you for your reply. Finally a suggestions at all.
 I checked both

 /proc/sys/kernel/threads-max
 /proc/sys/kernel/shmmax

 I dont think threads-max will be a problem, because the value is 14336,
 and i dont think my system will ever have to handle this number of
threads.

 But researching shmmax at google i got several hits. Most are dealing with
 postgres but perhaps its the same with mysql.

 shmmax ist 32 MB. on one page the author suggest to raise this value to
128
 MB.

 What are your suggestions for the values:

 shmall  shmmax  shmmni ?
I really couldn't give you good values for these. I just remember Oracle
suggested changes to them.

What are you using to generate the connections (perl, c/c++, php, etc.)?
--
Walter Anthony
System Administrator
National Electronic Attachment
Atlanta, Georgia
1-800-782-5150 ext. 1608
 If it's not broketweak it


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Process Limit on Linux ?

2003-03-16 Thread Philipp
Hi there,


i wrote several times to the list asking for help with a problem
regarding process limits on linux, but never got an answer.
today i found this story:

http://www.mysql.com/press/user_stories/handy.de.html

here are the relevant sentences:

We had some process limit problems on our Linux Systems,
but thanks to your support we where able to patch the linux boxes
and move the limit to a size that meets our needs (we've got an average of
about
1600 concurrent threads per server).

These people use 2.2 Kernels so i dont know if the mentioned kernel and
glibc
patching is also relevant for me, as i am using 2.4 kernels only.

Here is my problem in detail:

i am using mysql-3.23.55 binary packages on linux 2.4.20 and i raised ulimit
values and configuration in my.conf to allow more then 1500 threads. but
when
there are around 750 threads a new client connecting is told something like
that (dont have the errno at the moment, i think its 11):

cant create new thread, perhaps you are out of memory or there is a
os-depended bug.

The machine only runs apache and mysql and is a Xeon 2x2 2.4 Gz with 2 GB of
RAM.
cat /proc/meminfo sais that more then 1 Gig is used for caching, so memory
should be no
problem .


Please, if you have any ideas, let me know. If it is a kernel issue, tell me
to go to linux mailing lists
or if its some kind of secret issue only the support will be able to
answer let me know that.


Thanks in advance,
Philipp



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Problem: mysql can't create new thread.

2003-02-19 Thread Philipp
Hi there,


this problem was asked in this list before and i thought i solved
it but i was wrong. Heres the description:


I am running mysql 3.23.54 on Debian Linux with 2.4.20 Final
System has 2 GB Ram.
I compiled from source.

Here are relevant passages from my.cnf

port= 3306
socket  = /var/run/mysql/mysql.sock
set-variable= max_connections=1000
skip-locking

set-variable= open_files_limit=8129
set-variable= max_tmp_tables=300
set-variable= key_buffer=512M
set-variable= max_allowed_packet=5M
set-variable= table_cache=3000
set-variable= sort_buffer=2M
set-variable= record_buffer=2M
set-variable= thread_cache=50
set-variable= myisam_sort_buffer_size=96M
set-variable= thread_concurrency=512
set-variable= wait_timeout=60


Ulimits are raised to unlimted for user msql. I am executing this in
safe_mysqld:

ulimit -n $open_files
ulimit -u unlimited
ulimit -a   /tmp/mysql.ulmit

mysql.ulimit looks like this:

core file size(blocks, -c) 0
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
max locked memory (kbytes, -l) unlimited
max memory size   (kbytes, -m) unlimited
open files(-n) 8129
pipe size  (512 bytes, -p) 8
stack size(kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes(-u) unlimited
virtual memory(kbytes, -v) unlimited


The System never runs out of Ram. There is lots of it available, but when
Mysql created
750 threads it stops creating more. It then tells me something like in the
Subject: Can't
create thread, perhaps out of memoy, OS-depended bug, blah...


Now finally, a question: Can someone please give me a hint  what to do to
make
mysql create more threads ?


Regards,
Philipp


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Re: CREATE TABLE, NOT NULL fields, and empty strings

2003-02-09 Thread Philipp Specht
Doug Beyer wrote:

create table t1 ( id varchar(5) not null, name varchar(5) not null );
insert into t1 ( id ) values ( 1234 );
select count(*) from t1 where name is null; 	-- Result = 0
select count(*) from t1 where name = ;		-- Result = 1



Questions:
1) Why did the insert succeed since the name field is not null and I didn't provide a value?


MySQL uses the default value of this column if you don't provide a value 
and the column is defined not null.

2) Why does MySql think it's correct to substitute an empty string for a non-provided value?


http://www.mysql.com/doc/en/CREATE_TABLE.html :

If no DEFAULT value is specified for a column, MySQL automatically 
assigns one. If the column may take NULL as a value, the default value 
is NULL. If the column is declared as NOT NULL, the default value 
depends on the column type:
* For string types other than ENUM, the default value is the empty 
string. For ENUM, the default is the first enumeration value (if you 
haven't explicitly specified another default value with the DEFAULT 
directive).

Good night,
Philipp


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Re: 3.23 thread error - help/advice please

2003-01-28 Thread Philipp
Hi,

i had a problem like this, too. in my case it
wasnt mysql restricting the number of threads
but my OS (Linux/Debian). Usually mysql does
not run as root, but as user mysql or something
else. Debian restricts normal users to a number
of running processes to prevent an overloaded.

i solved my problem by raising this value, in my
case with the tool ulimit. i call it with the appopriate
paramter in safe_mysqld. there is already a ulimit call
in safe_mysqld to raise thie number of allowed open
files. i added my ulimit right after that line...

hope that helps...


regards,
philipp



- Original Message -
From: my5ql _ [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, January 28, 2003 3:04 PM
Subject: 3.23 thread error - help/advice please


 I tweaked my.cnf on a server.
 Changed wait_timeout from 80 to 75
 and increased key_buffer to 1280M from 1024M

 max_connections is set to 500
 Max_used_connections was reported at 370 (from 'mysqladmin variables')
 thread_cache is set to 48

 I ran 'mysqladmin flush-hosts' as the mysql root user and got the
following
 output:

 /usr/local/mysql/bin/mysqladmin: connect to server at 'localhost' failed
 error: 'Can't create a new thread (errno 11). If you are not out of
 available memory, you can consult the manual for a possible OS-dependent
 bug'

 Problem seems to have disappeared once I reverted back to my old settings
 (and I don't get the regular [every 10min] php pconnect errors).
 Max_used_connections is now at 439.

 System is MySQL 3.23.51 built from source, Rh 7.3, custom 2.4.19 kernel.

 What I'm unsure about is the errors from php pconnect and the inability to
 flush hosts when I hadn't hit any connection limits. I have over 2GB RAM
 free (as reported by 'top')

 Any ideas/suggestions?









 _
 Chat online in real time with MSN Messenger http://messenger.msn.co.uk


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Re: 3.23 thread error - help/advice please

2003-01-28 Thread Philipp
Hi,

yes, thats where i added the line.
i used ulimit -u. ulimit is a build-in bash
command. man bash says:

-u The maximum number of processes available to a single user

My section looks like this:

if test -n $open_files
  then
ulimit -n $open_files
ulimit -u 1505# - That limits to 1505 processes.
  fi
  if test -n $core_file_size
  then
ulimit -c $core_file_size
  fi
fi

If you want a connection limit of 500 set it to something more
than 500, because the main process, which will not handle a connection,
has to be counted.
You can also add something like this before and after the above section to
verify:

ulimit -a  /tmp/mysql-ulimit.txt

That will print all ulimit restrictions to /tmp/mysql-ulimit.txt.


Regards,
Philipp





- Original Message -
From: my5ql _ [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Tuesday, January 28, 2003 6:05 PM
Subject: Re: 3.23 thread error - help/advice please


 What kind of limit did you set?
 I think I've found the area in safe_mysqld you referred to. Is this
correct?
 --
# If we are root, change the err log to the right user.
   touch $err_log; chown $user $err_log
   if test -n $open_files
   then
 ulimit -n $open_files
   fi
   if test -n $core_file_size
   then
 ulimit -c $core_file_size
   fi
 fi
 -







 From: Philipp [EMAIL PROTECTED]
 To: my5ql _ [EMAIL PROTECTED],[EMAIL PROTECTED]
 Subject: Re: 3.23 thread error - help/advice please
 Date: Tue, 28 Jan 2003 17:15:06 +0100
 
 Hi,
 
 i had a problem like this, too. in my case it
 wasnt mysql restricting the number of threads
 but my OS (Linux/Debian). Usually mysql does
 not run as root, but as user mysql or something
 else. Debian restricts normal users to a number
 of running processes to prevent an overloaded.
 
 i solved my problem by raising this value, in my
 case with the tool ulimit. i call it with the appopriate
 paramter in safe_mysqld. there is already a ulimit call
 in safe_mysqld to raise thie number of allowed open
 files. i added my ulimit right after that line...
 
 hope that helps...
 
 
 regards,
 philipp
 
 
 
 - Original Message -
 From: my5ql _ [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 Sent: Tuesday, January 28, 2003 3:04 PM
 Subject: 3.23 thread error - help/advice please
 
 
   I tweaked my.cnf on a server.
   Changed wait_timeout from 80 to 75
   and increased key_buffer to 1280M from 1024M
  
   max_connections is set to 500
   Max_used_connections was reported at 370 (from 'mysqladmin variables')
   thread_cache is set to 48
  
   I ran 'mysqladmin flush-hosts' as the mysql root user and got the
 following
   output:
  
   /usr/local/mysql/bin/mysqladmin: connect to server at 'localhost'
failed
   error: 'Can't create a new thread (errno 11). If you are not out of
   available memory, you can consult the manual for a possible
OS-dependent
   bug'
  
   Problem seems to have disappeared once I reverted back to my old
 settings
   (and I don't get the regular [every 10min] php pconnect errors).
   Max_used_connections is now at 439.
  
   System is MySQL 3.23.51 built from source, Rh 7.3, custom 2.4.19
kernel.
  
   What I'm unsure about is the errors from php pconnect and the
inability
 to
   flush hosts when I hadn't hit any connection limits. I have over 2GB
RAM
   free (as reported by 'top')
  
   Any ideas/suggestions?
  
  
  
  
  
  
  
  
  
   _
   Chat online in real time with MSN Messenger http://messenger.msn.co.uk
  
  
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 _
 Use MSN Messenger to send music and pics to your friends
 http://messenger.msn.co.uk




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Rollback problem

2003-01-24 Thread Philipp Specht
Hi!

I've got the following problem with Version 4.0.9 of Mysql:

The page
http://www.mysql.com/doc/en/COMMIT.html
says:
'If you do a ROLLBACK when you have updated a non-transactional table
you will get an error (ER_WARNING_NOT_COMPLETE_ROLLBACK) as a warning.
All transactional safe tables will be restored but any non-transactional
table will not change.'

When I change both, an InnoDB table and a MyISAM table there is no table
restored; not even the InnoDB table.

Maybe there is an obvious error in my testing, maybe an error in Mysql.
Please tell me. :o)

You can find a detailed log at
http://www.phlybye.de/sql.txt
.

Thanks,
bye,
Philipp


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mysql: field type of double without scientific notation

2003-01-21 Thread Philipp Sutter

I have a Mysql-table with a field of type double. when i retrieve very small
numbers from this table I get them allways in a scientific notation:
i.e. 8.34e-05. what i have to do, that i get the same number in normal
notation: 0.834?

thank you for any hints in advance!

philipp






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Re: mysql: field type of double without scientific notation

2003-01-21 Thread Philipp Sutter
Roger Baklund:
 * Philipp Sutter 
  I have a Mysql-table with a field of type double. when i retrieve 
  very small
  numbers from this table I get them allways in a scientific notation:
  i.e. 8.34e-05. what i have to do, that i get the same number in normal
  notation: 0.834?
 
 See the FORMAT() function:
 
 URL: http://www.mysql.com/doc/en/Miscellaneous_functions.html 
 
 -- 
 Roger

format() has two disadvantages:
1) format will round the number. i can't round the numbers.
2) format(number,13) will get i.e. 0.83400. i do not want the
ending zeros.

is there an other way to get only the number i.e. 0.834.

philipp


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Re: MySQL Server Crashes under heavy load

2003-01-17 Thread Philipp
Hi Chavvon,


we are running a high volume site with
currenty 1.3 Million Page Views daily.
mysql query average is at 300. We are using the
latest stable versions of mysql, apache and php.
the server has 2 GB of RAM and 4 XEON 2.4 GZ
processors and the load varies between 1 and 2 at
peek times. although this box is serving blazing fast even
at peak times i think you should cluster if you expect
that the hits increase...


best regards,
philipp


- Original Message -
From: Joseph Bueno [EMAIL PROTECTED]
To: Chavvon Smith [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Friday, January 17, 2003 6:45 PM
Subject: Re: MySQL Server Crashes under heavy load


 We have a site with a similar architecture:
 - 6 load balanced front-ends
 - 1 dedicated database server (Dual P3 1.4GHz, 2GbRAM, RH7.2)
 we serve around 3 million pages/day (all pages are dynamiquely generated,
 each page needs an average of 15 SQL queries).

 What we have done:
 - audit ALL SQL queries and make sure that they are optimised (all selects
   use indexes,...)
 - optimise mysqld configuration (tune key_buffer_size, ..)
 - setup replication : each front-end is a mysql slave server and replicate
   most used tables.
 - modify the site so that heaviest SELECT queries are run by each
front-end
   on local slave.

 Result:
 - on main database server: 300queries/s average (~700q/s peak)
load : 0.2 average, ~0.7 peak
 - on each front-end : 30q/s average (60q/s peak)

 We could run more requests on the slaves but since the master server load
 is so low, we have postponed those optimisations.

 I think you really should audit your queries first. From my experience and
what
 other users have reported on this list, you should expect to be able to
 run several hundred queries/s with the kind of hardware you are
 using.

 Hope this helps
 --
 Joseph Bueno


 Chavvon Smith wrote:
  We are hosting a high volume site that gets about 1 million page views a
day
  on RedHat 7.3.  We currently have 3 load balanced servers on the front
end
  accessing a MySQL server on the back end.  The MySQL servers is dual P3
1ghz
  with 1 GB of RAM and when the MySQL queries hit about 50 per second, the
DB
  crashes and the servers is useless unless you reset the DB.  Memory is
only
  at about 50% usage, but the CPU skyrockets to 100%.
 
  The only solution we can think of is to throw a huge server at the
backend
  (i.e. 4-8 processor Compaq 8500) and keep RH 7.3 or switch to Windows
2000
  Advanced Server and cluster a few dual P3 servers together.
 
  Any other solutions to make MySQL handle a high volume site?
 
  CS
 


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Re: Loading a database into RAM

2003-01-14 Thread Philipp
Hi,


if your system suddenly crashs all changes to the database are lost.
be aware of this !


regards,
philipp
p


- Original Message -
From: Shamit Verma [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, January 14, 2003 11:01 AM
Subject: Re: Loading a database into RAM


 You may try using a Ramdisk as storage for mysql data folder.

 Regards,
 Shamit
 http://www.vshamit.com

 - Original Message -
 From: Steve Quezadas [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 Sent: Tuesday, January 14, 2003 2:53 PM
 Subject: Loading a database into RAM


  I have a mySQL database that is about 240 megabytes. I am loading it on
  a Linux server with 2 gigs of RAM. I would like to have the whole table
  reside in memory to save time from disk access. Is there any way to load
  the tables into RAM on startup? I am thinking about creating a heap
  table, but I need the heap table to be lodaed when mysql gets loaded. Is
  there anyway to do this? Or perhaps it is best to put the table in a RAM
  disk or something?
 
  Anyone know a generally recommended solution?
 
   -Steve
 
 
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Re: table_cache too high?

2002-11-20 Thread Philipp Steinkrueger
If you with Linux, you can use the 'sysctl' programm.
sysctl -h gives you the parameters (i.e -u is for the maximum
number of processes created by a user). I use the sysctl command
in the safe_mysqld script to increase this number. if you want to
set a parameter systemwide you may also use /etc/sysctl.conf.


Regards,
Philipp

- Original Message -
From: Thomas Seifert [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, November 20, 2002 3:25 PM
Subject: Re: table_cache too high?



 and how on-the-fly?


 Thomas

 On Wed, 20 Nov 2002 09:18:15 -0500 Ken Menzel [EMAIL PROTECTED] wrote:

  Yes,  you are correct and it can be worse because you have not
  considered that there are some descriptors required by other processes
  running.   I suggest you increase your file limit to at least 2048.
 
  Good luck
  Ken
  - Original Message -
  From: Lance Lovette [EMAIL PROTECTED]
  To: MySQL [EMAIL PROTECTED]
  Sent: Wednesday, November 20, 2002 12:12 AM
  Subject: table_cache too high?
 
 
   My database has many hundreds of tables. Originally I set my
  table_cache to
   512. Today I realize this might not be a good idea. By default
   open_files_limit is 0. According to my understanding of the manual
  this
   means each MySQL process will open at most 1124 file handles:
  
   max_connections + (table_cache * 2)
   = 100 + (512 * 2)
   = 1124
  
   ulimit -n says the process file handle limit is 1024. Am I correct
  in
   assuming this configuration could potentially put the server in an
  unstable
   situation?
  
   Thanks!
   Lance
  
  
   
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Re: How MySQL Works?

2002-11-07 Thread Philipp Steinkrueger
Hi,


if you dont understand the language mysql is written in you
are probably not interested in how it works, technically. this
perspective can only be explained by using terms from the
programming language. i guess you are interested in learning
more about the user-level, like how to set it up and how to
do a query and this stuff. just go read the documentation at
www.mysql.com.


good luck,
philipp

- Original Message -
From: Unidux (S) - Han Lin [EMAIL PROTECTED]
To: Michael T. Babcock [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Thursday, November 07, 2002 3:06 PM
Subject: Re: How MySQL Works?


 Hi Michael,

 Thanks for your suggestion, but I didn't read C code, and I don't think so
 someone in this list will:) Maybe short explanation from you also can:)

 Regards,
 Han Lin

 - Original Message -
 From: Michael T. Babcock [EMAIL PROTECTED]
 To: Unidux (S) - Han Lin [EMAIL PROTECTED]
 Cc: [EMAIL PROTECTED]
 Sent: Thursday, November 07, 2002 9:45 PM
 Subject: Re: How MySQL Works?


  Unidux (S) - Han Lin wrote:
 
  I wanna know what the steps MySQL perform when we do INSERT in
Database?
  
  Anyone can explain? Or anyone here have some reference about how MySQL
  works?
  
  
 
  The source code is freely available from the website; download it and
  take a read -- if you don't read C code, grab someone who does :).
 
  --
  Michael T. Babcock
  C.T.O., FibreSpeed Ltd.
  http://www.fibrespeed.net/~mbabcock
 
 
 
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thread creation problem

2002-10-07 Thread Philipp Steinkrueger

Hello,


i have a problem with the mysql database. mysql seems not able
to created ne threads sometimes. the system is running several deamons,
like a webserver and a ftpserver. RAM was short so i added more. now there
are 2 GB RAM available. first, here is the error message:

Can't create a new thread (errno 11). If you are not out of available
memory, you
can consult the manual for a possible OS-dependent bug

here is my system configuration:

debian 3.0
kernel 2.4.19 (high memory enabled)
mysql 3.23.52 (compiled from source)

here is what mysql looks like in the ps-tree (top 3):

root 27041  0.0  0.0  2056  976 pts/5S   17:43   0:00 /bin/sh
/usr/local/mysql/bin/safe_mysqld --core --err-log=/var/log/mysql/mysql.err -
-datadir=/www/mysql/data --pid-file=/www/mysql/data/www4.pid
mysql27073  0.0  0.3 401804 7268 pts/5   S   17:43   0:00  \_
/usr/local/mysql-3.23.52-src/libexec/mysqld --basedir=/usr/local/mysql-3.23.
52-src --datadir=/www/mysql/data --user=mysql --pid-file=/www/mysql/data/www
4.pid --skip-locking --core
mysql27075  0.0  0.3 401804 7268 pts/5   S   17:43   0:00  \_
/usr/local/mysql-3.23.52-src/libexec/mysqld --basedir=/usr/local/mysql-3.23.
52-src --datadir=/www/mysql/data --user=mysql --pid-file=/www/mysql/data/www
4.pid --skip-locking --core

here is the output of `cat /proc/meminfo`:

MemTotal:  2069560 kB
MemFree: 19072 kB
MemShared:   0 kB
Buffers: 74828 kB
Cached:1334320 kB
SwapCached:   1900 kB
Active: 756716 kB
Inactive:   850452 kB
HighTotal: 1179584 kB
HighFree: 3220 kB
LowTotal:   889976 kB
LowFree: 15852 kB
SwapTotal:  384476 kB
SwapFree:   379276 kB


i see that the cached-value is high, but i think this is to be considered as
free if needed. i am not sure at this, could
someone correct me please if i am worng here.

here is my /etc/my.conf (parts):

skip-locking
port= 3306
socket  = /var/run/mysql/mysql.sock
set-variable= max_connections=400

set-variable= open_files_limit=8129
set-variable= key_buffer=384M
set-variable= max_allowed_packet=5M
set-variable= table_cache=512
set-variable= sort_buffer=2M
set-variable= record_buffer=2M
set-variable= thread_cache=8
set-variable= myisam_sort_buffer_size=64M
server-id   = 1

[isamchk]
set-variable= key_buffer=256M
set-variable= sort_buffer=256M
set-variable= read_buffer=2M
set-variable= write_buffer=2M

[myisamchk]
set-variable= key_buffer=256M
set-variable= sort_buffer=256M
set-variable= read_buffer=2M
set-variable= write_buffer=2M


finally, here is the outout of 'sysctl -a | grep file-max':

fs/file-max = 65536


Do you need anything else ? Sorry if the mail got to long, but i dont
know what you need to help me...


Best Regards and thank you,

Philipp



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mysql on OS X PROBLEM!

2002-09-12 Thread philipp ringli

hi all,

i am running OS X 10.2 and
this version of mysql:

mysql status
--
./bin/mysql  Ver 11.18 Distrib 3.23.51, for apple-darwin6.0 (powerpc)

Connection id:  117
Current database:   mysql
Current user:   root@localhost
Current pager:  stdout
Using outfile:  ''
Server version: 3.23.51-entropy.ch
Protocol version:   10
Connection: Localhost via UNIX socket
Client characterset:latin1
Server characterset:latin1
UNIX socket:/tmp/mysql.sock
Uptime: 4 hours 15 min 17 sec

php 4.2.1 also by entropy.ch



my problem is the following:

let's say i want to add the following user (just as a test):

mysql grant all
- on *
- to test
- with grant option;

i do that and then i do a
mysql use mysql;
mysql SELECT * FROM user;

the thing is, that all the permissions are still set to 'N'!! it won't
accept the grant arguments. also after a mysqladmin reload!
i also have phpMyAdmin 2.3.0 installed and if i change the user's
permissions in there, it accepts them. then also the terminal will list them
properly.

why is this happening?

please advise,

phil


















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mysql on OS X PROBLEM!

2002-09-11 Thread philipp ringli

hi all,

i am running OS X 10.2 and
this version of mysql:

mysql status
--
./bin/mysql  Ver 11.18 Distrib 3.23.51, for apple-darwin6.0 (powerpc)

Connection id:  117
Current database:   mysql
Current user:   root@localhost
Current pager:  stdout
Using outfile:  ''
Server version: 3.23.51-entropy.ch
Protocol version:   10
Connection: Localhost via UNIX socket
Client characterset:latin1
Server characterset:latin1
UNIX socket:/tmp/mysql.sock
Uptime: 4 hours 15 min 17 sec

php 4.2.1 also by entropy.ch



my problem is the following:

let's say i want to add the following user (just as a test):

mysql grant all
- on *
- to test
- with grant option;

i do that and then i do a
mysql use mysql;
mysql SELECT * FROM user;

the thing is, that all the permissions are still set to 'N'!! it won't
accept the grant arguments.
i also have phpMyAdmin 2.3.0 installed and if i change the user's
permissions in there it accepts them. also the terminal will list them
properly.

why is this happening?

please advise,

phil


















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Re: mysql on OS X PROBLEM!

2002-09-11 Thread philipp ringli

hi rene,

thanks for your reply.
yes, i do it being root:

mysql -u root -p

and in phpMyAdmin i see that the grant option for root is enabled.
and i am loged into phpMyAdmin as root also.

i really wonder what's going on...

i mean, am i missing the point in some way or another?

cheers,
phil


 Hmm, nothing springs out off the top of my head.  You're logged
 into MySQL as a user that has the GRANT priv. before you issue
 the grant command, right?  If MySQL silently ignores unpriv'd grant
 requests, that might cause the error you're seeing.
 
 Rene


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