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  #1 (permalink)  
Old 02-28-2008, 07:14 AM
Ben
 
Posts: n/a
Default problem with mysql.sock

Hi,

I installed mysql 5.0 on redhat 9.0 from source (tar).
The whole procedure occured properly, i could do ./mysqld_safe.
But when i want to start the client: mysql, i get :error 2002: cannot
connect to mysql server through 'tmp/mysql.sock'.

I set /tmp with the sticky bit, because otherwise file 'mysql.sock' woukd be
deleted !?.
I also created 'my.cnp into /etc, but my problem is that there is no file
'mysql.sock'.

I recompiled it again (make, make install) but still no file 'mysql.sock'
anywhere.

How can i create or get such a file?
Thanks
ben



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  #2 (permalink)  
Old 02-28-2008, 07:14 AM
Bill Karwin
 
Posts: n/a
Default Re: problem with mysql.sock

"Ben" <qsvqs@qsdcsqd> wrote in message
news92dnSOBe_LXbDLeRVnyvw@scarlet.biz...
> I installed mysql 5.0 on redhat 9.0 from source (tar).
> The whole procedure occured properly, i could do ./mysqld_safe.
> But when i want to start the client: mysql, i get :error 2002: cannot
> connect to mysql server through 'tmp/mysql.sock'.


Do you mean '/tmp/mysql.sock'? It probably won't work if it's a relative
path.

> I also created 'my.cnp into /etc


Do you mean 'my.cnf'?

> I recompiled it again (make, make install) but still no file 'mysql.sock'
> anywhere.


Can you confirm that mysqld is running? That is, can you observe the mysqld
process in a 'ps' listing? I have frequently found it troublesome to get
mysqld to start up on Linux. Sometimes when I run mysqld_safe on Linux it
returns to a prompt silently, but fails to start the daemon and logs an
error message. Be sure to check the error file <hostname>.err, which is
typically created under the MySQL data directory.

See http://dev.mysql.com/doc/refman/5.0/...to-server.html
for more troubleshooting tips.

Another possibility is that the mysql client you are running from the shell
is left over from a previous version of MySQL installed on your system, and
it thinks the socket file is in /tmp/mysql.sock, while the MySQL 5.0 daemon
you just compiled and started (assuming it did start) thinks the socket file
is somewhere different. Sometimes it's configured to be created under
MySQL's data directory. Sometimes under /var somewhere. This should have
been set at configure time before you compiled. See
http://dev.mysql.com/doc/refman/5.0/...e-options.html.

Also read
http://dev.mysql.com/doc/refman/5.0/...ysql-sock.html

Regards,
Bill K.



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  #3 (permalink)  
Old 02-28-2008, 07:14 AM
Ben
 
Posts: n/a
Default Re: problem with mysql.sock

Thanks.
You're right: the deamon is not running.
I'll read the stuff and try again.

My conclusion is: why is it so difficult to install Mysql on a linux box
when it's so easy on a ... windows box?


"Bill Karwin" <bill@karwin.com> schreef in bericht
news:dopftp1rqc@enews3.newsguy.com...
> "Ben" <qsvqs@qsdcsqd> wrote in message
> news92dnSOBe_LXbDLeRVnyvw@scarlet.biz...
>> I installed mysql 5.0 on redhat 9.0 from source (tar).
>> The whole procedure occured properly, i could do ./mysqld_safe.
>> But when i want to start the client: mysql, i get :error 2002: cannot
>> connect to mysql server through 'tmp/mysql.sock'.

>
> Do you mean '/tmp/mysql.sock'? It probably won't work if it's a relative
> path.
>
>> I also created 'my.cnp into /etc

>
> Do you mean 'my.cnf'?
>
>> I recompiled it again (make, make install) but still no file 'mysql.sock'
>> anywhere.

>
> Can you confirm that mysqld is running? That is, can you observe the
> mysqld
> process in a 'ps' listing? I have frequently found it troublesome to get
> mysqld to start up on Linux. Sometimes when I run mysqld_safe on Linux it
> returns to a prompt silently, but fails to start the daemon and logs an
> error message. Be sure to check the error file <hostname>.err, which is
> typically created under the MySQL data directory.
>
> See http://dev.mysql.com/doc/refman/5.0/...to-server.html
> for more troubleshooting tips.
>
> Another possibility is that the mysql client you are running from the
> shell
> is left over from a previous version of MySQL installed on your system,
> and
> it thinks the socket file is in /tmp/mysql.sock, while the MySQL 5.0
> daemon
> you just compiled and started (assuming it did start) thinks the socket
> file
> is somewhere different. Sometimes it's configured to be created under
> MySQL's data directory. Sometimes under /var somewhere. This should have
> been set at configure time before you compiled. See
> http://dev.mysql.com/doc/refman/5.0/...e-options.html.
>
> Also read
> http://dev.mysql.com/doc/refman/5.0/...ysql-sock.html
>
> Regards,
> Bill K.
>
>
>



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  #4 (permalink)  
Old 02-28-2008, 07:14 AM
Schraalhans Keukenmeester
 
Posts: n/a
Default Re: problem with mysql.sock

Ben wrote:
> Hi,
>
> I installed mysql 5.0 on redhat 9.0 from source (tar).
> The whole procedure occured properly, i could do ./mysqld_safe.
> But when i want to start the client: mysql, i get :error 2002: cannot
> connect to mysql server through 'tmp/mysql.sock'.
>
> I set /tmp with the sticky bit, because otherwise file 'mysql.sock' woukd be
> deleted !?.
> I also created 'my.cnp into /etc, but my problem is that there is no file
> 'mysql.sock'.
>
> I recompiled it again (make, make install) but still no file 'mysql.sock'
> anywhere.
>
> How can i create or get such a file?
> Thanks
> ben
>
>
>

I am not sure, but would setting the sticky bit not prevent mysqld from
creating a new socket every time it is started ? I don't see the reason
for the stick bit here. And I noticed you talk about /tmp and the error
speaks of tmp. Could that be tmp relative to the mysql path perhaps ???

Rgds
Sh
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  #5 (permalink)  
Old 02-28-2008, 07:14 AM
Peter H. Coffin
 
Posts: n/a
Default Re: problem with mysql.sock

On Tue, 27 Dec 2005 11:46:33 +0100, Schraalhans Keukenmeester wrote:
> Ben wrote:
>> I installed mysql 5.0 on redhat 9.0 from source (tar).
>> The whole procedure occured properly, i could do ./mysqld_safe.
>> But when i want to start the client: mysql, i get :error 2002: cannot
>> connect to mysql server through 'tmp/mysql.sock'.
>>
>> I set /tmp with the sticky bit, because otherwise file 'mysql.sock' woukd be
>> deleted !?.
>> I also created 'my.cnp into /etc, but my problem is that there is no file
>> 'mysql.sock'.

[..]
>>

> I am not sure, but would setting the sticky bit not prevent mysqld from
> creating a new socket every time it is started ? I don't see the reason
> for the stick bit here. And I noticed you talk about /tmp and the error
> speaks of tmp. Could that be tmp relative to the mysql path perhaps ???


The bit prevents *other* user IDs from deleting the socket. If user
'mysql' creates and owns /tmp/mysql.sock, then only mysql and superuser
(e.g. root) can delete the file, regardless of write permissions on the
mysql.sock file.

But, as has been pointed out elsewhere in the thread, that's not the
problem. The problem is that the daemon isn't starting.

--
_ o
|/)
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