question about replication under version 3.23.38 for Unix (database)

2001-05-21 Thread Joseph Chow

HI, everyone,

I met a problem about setting up replication(master/slave) of mysql sever on unix 
boxes.

Mysql servers are installed under /usr/local/ on master and slave and they can be 
run under /usr/local/mysql/bin.

It seems to me that I have three choices where to put my configuration files, my.cnf, 
after I modify them for master and slave respectively .
1)   /etc/my.cnf  (global options)
2)  DATADIR/my.cnf (Sever-specific option)
2)  ~/.my.cnf (User-specific option)

I have already tried all the three options, but only the first one worked.
For sever-specific option, DATADIR that I choose to use is /data/mysql on my unix.  
And for User-specific option, I have tried my home directory /home/joseph.
For either of these two cases, it is obvious that mysql server didnot read the 
modified configuration under these two directories, because I tried show master 
status and show slave status and find nothing happened.

Anyone can answer why and how to work it out under last two cases?

thank you,

Joseph 



question about a select application (sql, database)

2001-05-18 Thread Joseph Chow

Hi, everyone,

I wrote a program to keep inserting rows to the databases.  But I want to check the 
LAST row I inserted.  Is there any good way to do it??

thanks,

Joe



MySQL -- tee command ???

2001-05-11 Thread Joseph Chow

Hi, everyone,

I have a question about the tee command in MySQL.  I know one of its applications is 
to log everything from the screen to the outfile for debugging purpose.  But how do I 
redirect output ONLY to outfile instead of both standard output (screen) and outfile.  
Because I donot want to see millions of lines scolled down on the screen when I access 
to a huge database, but I still want to debug through looking at the content of the 
db.  I wish I make myself clearly.

Please reply to me directly, because I am not on the mailing list yet.

thanks,

Joe Chow



2-way replication in MySQL (sql)

2001-05-11 Thread Joseph Chow

Hi, everyone,

This is my another question.  I have one master server and one slave
server now.  In case that the master is down for any reason, I want the
slave still accessible by clients.  Is that possible in my SQL?  by two way
replications?  This problem seems quiet complicated to me.

Please give me some detail ideas or point out the resources helpful.

thanks a lot,

Joe Chow




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need help on replication

2001-05-09 Thread Joseph Chow

Hi, there,

This is my first try on this mailing list.  I am a new user of mysql and
need some help about replication on mysql 3.23.36.
I had followed the manual to set up master/slave server.  At the beginning,
they are connected perfectly.  All the modifications (i.e. create databases,
insert values ..) on the master server were mirrored by the slave server.
However, after I dumped some databases from the master to the slave, the bad
things happened.  The connection between the master and the slave was down.
I failed to reconnect them by shutting down and restarting the master and
the slave a couple of times.

So, here are my questions:

1  Does myadmindump .. command have anything to do the disconnection?

2  How could I reconnect them now?


If you could take a minute to help me out, I'd much appreciated.

thanks,

Joe Chow


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RE: need help on replication

2001-05-09 Thread Joseph Chow

Hi, Jeremy,

It is very nice to talk to you.  Thanks for your information.  It's working
now, but I did nothing but going over the procedure again.  I may make some
mistakes during my operations.  But it is really a good idea to keep an eye
on the err log for solutions.

By the way, I once first tried to set up the slave on a NT machine.  But for
unknown (means I donot know) reasons, I can not even net start mysql on
that machine now.  The error message is system error 5.  Did you meet this
problem?  If so, how did you solve it?

thanks alot,

Joe


-Original Message-
From: Jeremy Zawodny [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 09, 2001 10:33 AM
To: Joseph Chow
Cc: [EMAIL PROTECTED]
Subject: Re: need help on replication


On Wed, May 09, 2001 at 10:29:42AM -0600, Joseph Chow wrote:
 Hi, there,

 This is my first try on this mailing list.  I am a new user of mysql
 and need some help about replication on mysql 3.23.36.  I had
 followed the manual to set up master/slave server.  At the
 beginning, they are connected perfectly.  All the modifications
 (i.e. create databases, insert values ..) on the master server were
 mirrored by the slave server.  However, after I dumped some
 databases from the master to the slave, the bad things happened.
 The connection between the master and the slave was down.  I failed
 to reconnect them by shutting down and restarting the master and the
 slave a couple of times.

You'll need to look in the mysql error log on the slave and see what
it says. That should give us/you a good idea what may have happened.

Jeremy
--
Jeremy D. Zawodny, [EMAIL PROTECTED]
Technical Yahoo - Yahoo Finance
Desk: (408) 349-7878Fax: (408) 349-5454Cell: (408) 439-9951

MySQL 3.23.29: up 126 days, processed 780,401,285 queries (71/sec. avg)


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