to stay in bed on Monday, rather than spending the rest
of the week debugging Monday's code.
- Christopher Thompson
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this, I cannot judge whether a test fails
is because it's not supported or real problems.
Thanks a lot!
Tianyin
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!!
Tianyin
On Fri, Nov 23, 2012 at 4:20 PM, Eric Bergen eric.ber...@gmail.com wrote:
Anger and OS religious arguments the real answer is that is just how
the option parsing code works. It doesn't always have to make sense.
There are short and long args to programs. For example on the mysql
: NO
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developers do take care a
lot of things (as unit and options I mentioned).
T
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in the java code, but I thought mysql might offer that or at
least
parts of it. Does anybody have an idea?
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Stefan
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, and Administrator
University Library ITS
University of California, Santa Cruz
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)
max_heap_table_size ( 16M)
table_cache ( 1024)
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What I am expected to hear.
I will let u know after some practical implementation.
Thanks best Regards,
Adarsh Sharma
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There isn't a built in way but you can try
http://www.mysqludf.org/lib_mysqludf_preg/
I would go with the php/perl script if this is a one time thing.
-Eric
On Jan 21, 2011, at 11:31 AM, Phil pchap...@nc.rr.com wrote:
I have a table which contains a username column which may be constructed
.
2. can we store table on specific tablespace like Oracle or DB2 when creating
table?
You can only choose to store a table in it's own tablespace or in the
global one.
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Google oom_adj and oom_score. You can control which process is most
likely to be killed.
On Mon, Apr 19, 2010 at 12:53 AM, Johan De Meersman vegiv...@tuxera.be wrote:
On Sun, Apr 18, 2010 at 9:04 PM, Eric Bergen eric.ber...@gmail.com wrote:
Usually I prefer to have linux kill processes
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, Rob Wultsch wult...@gmail.com wrote:
On Sun, Apr 18, 2010 at 12:04 PM, Eric Bergen eric.ber...@gmail.com wrote:
Linux will normally swap out a few pages of rarely used memory so it's
a good idea to have some swap around. 2G seems excessive though.
Usually I prefer to have linux kill processes
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replication
dual-master replication
bidirectional replication
TIA
-BT
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Support Engineer
Sun Microsystems, Inc.
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Hi Nipuna,
InnoDB can be disabled with the skip-innodb option. MyISAM can't
really be disabled because it's required to read the grant tables.
-Eric
On Sat, Dec 27, 2008 at 4:21 AM, Nipuna Perera nipu...@gmail.com wrote:
Hi All,
I'm using mysql-cluster-gpl-6.2.15 for create DB cluster in our
If you still want it you can download it from the Proven Scaling mirror.
http://mirror.provenscaling.com/mysql/community/source/4.0/
-Eric
On Thu, Nov 6, 2008 at 1:58 AM, Joerg Bruehe [EMAIL PROTECTED] wrote:
Hi!
Moon's Father wrote:
Hi.
Where can I download a mysql 4.0.12? I found
Shaun,
Purge master logs is available in 4.0 it just doesn't have the
before key word. It should be trivial to write a script that decides
which log file to purge based on the mtime.
-Eric
On Thu, Jul 10, 2008 at 12:15 PM, Shaun Adams [EMAIL PROTECTED] wrote:
I'm running a RHEL 4.1 and MySQL
Hi,
It's true that MyISAM keeps two files descriptors open per open table
but this is MyISAM specific. An open table in MySQL isn't a one to one
mapping to file descriptors, it's simply a c++ object. It's up to the
storage engine how it manages file descriptors. Engines can use worker
threads
Can you send us the exact zabbix error?
On Sun, Apr 27, 2008 at 6:18 PM, Sergio Belkin [EMAIL PROTECTED] wrote:
So anyone had ever had any problem with database cache? :)
2008/4/25 Sergio Belkin [EMAIL PROTECTED]:
Hi, I am using zabbix (monitoring software) with mysql. zabbix goes
TCP checksums aren't as strong as encryption. It's rare but corruption
can happen.
Where are you reading the positions from and how are you taking the
snapshot to restore the slave?
On Mon, Apr 21, 2008 at 12:30 AM, Jan Kirchhoff [EMAIL PROTECTED] wrote:
Eric Bergen schrieb:
Hi Jan
Victor,
Please give us an example with the python removed and include the
actual syntax error.
-Eric
On Fri, Apr 18, 2008 at 8:41 AM, Victor Subervi [EMAIL PROTECTED] wrote:
Hi;
The python code works properly, so I assume this is a strictly MySQL
question now :)
If I grab an image in
Hi Jan,
You have two separate issues here. First the issue with the link
between the external slave and the master. Running mysql through
something like stunnel may help with the connection and data loss
issues.
The second problem is that your slave is corrupt. Duplicate key errors
are sometimes
Nicole,
The tables left open warning is from the tables that were left open
when the server was rebooted. Internally mysql keeps a counter per
table of the number of clients that have a table open. When a table is
closed this counter is decremented. If mysql is improperly shutdown
this counter
I don't see what the issue is. As Jay said the row counts in explain
outputs are estimates. When running an explain query MySQL asks the
storage engine how many rows it thinks are between a set of values for
an index. Different storage engines use different methods to calculate
row count. Both
You can set the skip-innodb option in my.cnf
-Eric
On Tue, Apr 1, 2008 at 9:28 PM, Ananda Kumar [EMAIL PROTECTED] wrote:
Hi All,
We have a linux box running debain, with 8 cpu and 8 GB RAM, we want only
myisam engine to be running on this.
So, should i not setup any innodb parameters or
You probably only want max_connections and not max_user_connections.
Max_user_connections is the number of times a user can connect per
hour..
-Eric
2008/3/31 Vidal Garza [EMAIL PROTECTED]:
Velen escribió:
Hi,
How can i limit connections to my database?
Regards,
Velen
Oops. I was wrong on that one. max_user_connections is different from
global max_connections and max_connections per user.
2008/3/31 Eric Bergen [EMAIL PROTECTED]:
You probably only want max_connections and not max_user_connections.
Max_user_connections is the number of times a user can
I think a better question is why do you have one database per user?
-Eric
On 2/2/08, imad [EMAIL PROTECTED] wrote:
I am not connecting through MySQL. I am connecting through PHP. How
can I speed it up?
On Feb 3, 2008 12:20 AM, Saravanan [EMAIL PROTECTED] wrote:
Hi,
when you connect
://www.linux.com/feature/118489
ÐÆ5ÏÐ
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mounted disk
7. Does not address scaling or performance
8. OS Limitations – Some only run on Linux
May someone elaborate or disprove those points?
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in my.cnf, it startsup but my innodb tables could not
be accessed.
How can I start MySQL server again?
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to it everytime it is run.
I know I could read a file in the _init function, but this seems very
wasteful to read a file every time the function is being used.
Any thoughts on this would be appreciated.
thanks,
Yong.
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to tell if a table has been corrupted? We're having some
weird things happening and the only thing I can think of is possible
corruption of a table, but is there anything you can do to find out?
Jenifer
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I believe that some time in the future mysql will support oracle style
connect by prior syntax but it's not implemented yet.
Gleb Paharenko wrote:
Hello.
Though I haven't read this article, but its title looks promicing:
http://dev.mysql.com/tech-resources/articles/hierarchical-data.html
Is the box swapping?
Gleb Paharenko wrote:
Hello.
As was mentioned by other members without seeing your configuration
settings it is difficult to say about InnoDB performance. You can
indirectly monitor the OPTIMIZE speed by ROW OPERATIONS section of SHOW
INNODB STATUS. For InnoDB it maps to
MySQL 4.1.14 is the current version. You should always upgrade to the
lastest release and test your problem before trying to report bugs.
Ben Clewett wrote:
Dear MySQL,
My MySQL 4.1.9 has lost the ability to work out what IP address
clients are connecting from. Eg:
$ mysqladmin
Try running a flush tables in mysql to make sure that mysqld knows about
all the tables on disk.
xtcsuk wrote:
Running the command:
Drop table if exists table1
complaints of table1 does not exist (Error: 1051).
However, if table1 is swapped with another table, irrespective of its
existence it
When you add that index are more than 30% of the rows in the table
DateTimeNext1126215680?
Dan Baker wrote:
I have lots of tables that are similar in nature:
id int(11) PRI NULL auto_increment
Name varchar(30)
DateTimeNext int(11)
The DateTimeNext field represents when this records needs
It appears that mysqld is not listening on /tmp/mysql.sock.
Log into mysql and run show variables like 'socket';
This will tell you where mysqld is actually listening for socket
connections.
Then update your my.cnf files so they all have the same sock file
location as the
one that mysqld is
packet too big errors in replication are often a sign of corrupt
binary logs. If it's on a slave reading the relay log
often times flushing it will temporarily solve the problem. The easiest
way to flush the relay logs is to do a slave stop; change master to back
to the current file name and
Can you send us the actual show indexes from table and explain output
that isn't shortend?
Ronan Lucio wrote:
Hello,
I´m using MySQL-4.1.7, and I have a query that seems,
even using where clause, an specific table isn´t being optimized
properly:
I have four tables:
real_state: cod, name,
Try this:
concat('UP', lpad(category_id, 6, '0'));
Scott Purcell wrote:
Hello,
I have the following dilemma, that I do not know how to handle.
I have the need for a table where I create a identifier. The identifier consists of a two character string, eg: UP + the next AUTO_INCREMENT
Here is
This does make his code fall under the limitations of unix timestamps.
In 30 years or so when we are all retired millionaires ;) some poor
intern is going to have to figure out why the hour diff calculation is
failing.
[EMAIL PROTECTED] wrote:
Gyurasits Zoltán [EMAIL PROTECTED] wrote on
Which version of mysql are you exporting from and inserting into?
[EMAIL PROTECTED] wrote:
Hi all,
I am trying to create a table on the remote server from a table I created on my local sever but it never seems to
work
CREATE TABLE `sheet1` (
`id` int(10) NOT NULL auto_increment,
`title`
Please upgrade to the newest 4.0 mysql binaries.
Anil wrote:
Hi,
We are using mysql 4.0.20 on RHEL3.0 with circular replication setup A -B
-C -A . A is the master and all operations will be happening on A. We are
facing frequent mysql crash on Master with page corruption errors. How to
Could you accomplish this with an update and self join?
Ed Reed wrote:
Sorry, I thought it was easy to understand.
I wanna update a field in a table with a value from the same field but from a different record of the same table.
For example, using the query in my original message,
More queries yes but not more disk i/o. The first query will never touch
a disk.
[EMAIL PROTECTED] wrote:
Eric Bergen [EMAIL PROTECTED] wrote on 06/09/2005 12:56:59 PM:
How about something like this:
mysql select @t := now();
+-+
| @t := now
How about something like this:
mysql select @t := now();
+-+
| @t := now() |
+-+
| 2005-06-09 09:55:49 |
+-+
1 row in set (0.00 sec)
mysql insert delayed into t set t = @t;
Query OK, 1 row affected (0.00 sec)
mysql select *
It's not a bug at all. You just hit one of the features of enum :)
If you want to order alphabetically as you describe cast the enum name
to a string like this
select col from t order by concat(my_enum);
-Eric
Daevid Vincent wrote:
Please tell me there is a way to fix this bug in mysql
There is an option starting in 4.0.14 called read-only that will allow
only the slave i/o thread and users with the super priv to execute write
queries.
Jeremiah Gowdy wrote:
Is there a way to make MySQL Slaves read only in regards to all UPDATE, INSERT,
DELETE, DROP, TRUNCATE, etc, except
It's 32 bit. I'm not sure if it's signed or not but chances are you
don't need more than 2 billion ids :)
Richard Lynch wrote:
On Wed, May 25, 2005 11:59 pm, David said:
Does anyone know what the range for server-id can be?
Is it a 16 bit number? 32 bit?
I can't seem to find it in the
Did you shut down mysqld or read lock before copying the table?
Qunfeng wrote:
Hi,
I am running MySQL 4.1.8-Max-log on two Linux machine (machine A and
machine B). In the past, I do a simple scp to transfer all the
database table file from one machine (A) to the other (B). After the
I'm working on a set of UDFs for preg functions.
[EMAIL PROTECTED] wrote:
I have a hard time figuring out when you would use such a function. I do
not believe you will be able to duplicate this behavior without
constructing your own UDF or by writing a stored procedure. BTW, why *do*
you
elaborate
it a little more on why? Thanks a lot!
Qunfeng
At 01:05 PM 5/27/2005, Eric Bergen wrote:
Did you shut down mysqld or read lock before copying the table?
Qunfeng wrote:
Hi,
I am running MySQL 4.1.8-Max-log on two Linux machine (machine A and
machine B). In the past, I do a simple scp
Also try running the delete more frequently. It won't cause much of a
lock if there is an index on accountcode and mysql doesn't find any rows
to delete.
gerald_clark wrote:
Matthew Simpson wrote:
I use Mysql to store call detail records from telephone calls. I
have around 20 voice switches
When mysql had trouble starting up what error messages did it give in
the .err file in the datadir?
-Eric
James Tu wrote:
I had to migrate from 4.0.11 to 4.1.12. I saved the data directory from the
older version. I also exported all the information using phpMyAdmin's export
tool. I have one
select count(*) table; gives me a syntax error in 4.0 and 4.1 so I'm not
sure how that worked. Something similar would be select count(*) t;
which uses the shortcut alias syntax. It's the same as doing select
count(*) as t;
Simon Garner wrote:
[EMAIL PROTECTED] wrote:
I have a curious
Is there a reason you can't run mysqldump on the server? You could then
gzip it and use any transport method with throttling you want (like wget)
-Eric
Aaron Wohl wrote:
http://www.birdsoft.demon.co.uk/proglib/slowpipe.htm would seem to do
what you want... I havent tried it yet, but noted the
I agree. It sounds like you could use plain repeatable read isolation
transactions. If someone else is modifying those rows you get an older
version from when your transaction was started. No need for skipping
anything.
Martijn Tonies wrote:
I am using InnoDB only.
But, it's not skipping
Sorry, mysql doesn't support sub queries until version 4.1
-Eric
Scott Purcell wrote:
Hello,
I am accustomed to Oracle query syntax, and I am having trouble with this
following query which uses the IN. I am running mysql ( Ver 12.21 Distrib
4.0.15, for Win95/Win98 (i32) ) which does not support
Even better is if you have an integer primary key (think auto_increment)
and use in()
So if you want 10 random rows in your app generate 20 or so random
numbers and do something like
select col1, from t where x in (1, 5, 3, 2...) limit 10
check num rows and if you don't get enough generate
select count(*) from table is the fastest for myisam because it caches
row count. This will also include any rows that have null values.
select count(col) from table will not count rows where that column is
null and will also be forced to access the index or data file.
-Eric
Brian Dunning
in() can take millions of arguments. Up to max packet size. Try it :)
Dan Bolser wrote:
On Fri, 13 May 2005, Eric Bergen wrote:
Even better is if you have an integer primary key (think auto_increment)
and use in()
So if you want 10 random rows in your app generate 20 or so random
numbers
It sounds like you should be doing the link preservation and number
update part in php or perl.
Neculai Macarie wrote:
Not that I'm aware of. What type of conversions are you doing that you
need 30,000 use vars? An easy solution would be to try it and find out
:)
I need to move
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Not that I'm aware of. What type of conversions are you doing that you
need 30,000 use vars? An easy solution would be to try it and find out :)
-Eric
Neculai Macarie wrote:
Hi!
What is the maximum number of user variables that I can have in MySQL ? (I
need to transfer a application from one
The default timestamp display format changed between mysql 4.0 and 4.1
The easy fix is to add + 0 to all timestamp fields in selects. Like
this: select my_ts + 0 from t;
You should always read the upgrade notes in the manual. This is very well
documented:
Use one big table. A merge table will run the same query over all 10
tables. The key buffer is filled from the top down so if you have a key
buffer that looks like this:
a
/ \
/\
b c
/ \/ \
de fg
you need to install your distro's ncurses and ncurses-devel packages.
-Eric
ganesan malairaja wrote:
ok i found the source file ..
tarball
mysql-4.1.11.tar.gz
after executing the ./configure command
i does some checking the it gives this error
checking for termcap functions library ... configure :
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