Neelakanth Nadgir on MySQL and ZFS: A File System Revolution

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1. Solaris

How to grow a zfs file system?

Hi I have the following file system, that needs to be expanded to more 500Gb, so a total of 1Tb: df -h /oradata1 Filesystem Size Used Available Capacity Mounted on oradata1 587G 517G 69G 89% /oradata1 I am not familiar with zfs, I am more...

2. Solaris

Not able to increase ZFS file system on NGZ

I have Solaris-10 server running ZFS file-system. ctdp04_vs03-pttmsp01 is one of the non global zone. I wanted to increase a /ttms/prod file-system of zone, which is actually /zone/ctdp04_vs03-pttmsp01/ttms/prod on global server. I have added a new disk of 9 GB, which is emcpower56a and now I can...

3. Solaris

How to take backup of ZFS file system on a tape drive?

Hi Guys, I want to take backup of a ZFS file system on tape drive. Can anybody help me with this? Thanks, Pras

4. Solaris

Creation of zone based on zfs root file system

Hi all I want to know if suppose my global zone has UFS root file system & now I want to create non global zone with ZFS root file system. Is it possible.....If this is possible then how will I able to create zone based on ZFS root file system in global zone having UFS based root file system

5. Emergency UNIX and Linux Support

Not able to extend ZFS file system

Hi All, I have Solaris-10 configured with two non-global zones. All file-systems are mounted on global zone and data file-systems are mounted on non-global zone as lofs. I have added 4 luns of 100 GB each and still not able to extend a file-system. This is production server, so I can not...

6. Solaris

Patching on ZFS file-system

Hi, I have Solaris-10 (Update-7). This is having ZFS file-system and 10 sparse-root zones are there. I want to install Solaris-10 recommended patch cluster on it, but not sure, how to go ahead with procedure. I want to patch one side of the mirror and keep intact another side safe in case of...

7. Solaris

increase SWAP on ZFS file system

Hi All, I am using this commands to dynamically increase ZFS swap space on Solaris my question is: 1- after i make these commands it will permanent or it will remove after restart 2- how to make it permanent # swap -l swapfile dev swaplo bloques libre /dev/zvol/dsk/rpool/swap...

8. Shell Programming and Scripting

ZFS file system - memory monitoring

I am working on a server where the 'root' user ZFS filesystem. Now when I do Top commands it says only 750M free .But when I count the actual memory utilized it comes only to 12 GB and the total size of the server is 32G. I think rest of the space is held up by ZFS file system. Is there a...

9. UNIX for Dummies Questions & Answers

zfs file system

Hi, I try add a new file system: #zfs create dsk1/mqm it came back with: #cannot create 'dsk1/mqm': no such pool 'dsk1' what do I have to do? Kind regards Mehrdad

LEARN ABOUT SUSE

apache::session::lock::mysql

Session::Lock::MySQL(3) 				User Contributed Perl Documentation				   Session::Lock::MySQL(3)

NAME

       Apache::Session::Lock::MySQL - Provides mutual exclusion using MySQL

SYNOPSIS

	use Apache::Session::Lock::MySQL;

	my $locker = Apache::Session::Lock::MySQL->new();

	$locker->acquire_read_lock($ref);
	$locker->acquire_write_lock($ref);
	$locker->release_read_lock($ref);
	$locker->release_write_lock($ref);
	$locker->release_all_locks($ref);

DESCRIPTION

       Apache::Session::Lock::MySQL fulfills the locking interface of Apache::Session.	Mutual exclusion is achieved through the use of MySQL's
       GET_LOCK and RELEASE_LOCK functions.  MySQL does not support the notion of read and write locks, so this module only supports exclusive
       locks.  When you request a shared read lock, it is instead promoted to an exclusive write lock.

CONFIGURATION

       The module must know how to connect to your MySQL database to acquire locks.  You must provide a datasource name, a user name, and a
       password.  These options are passed in the usual Apache::Session style, and are very similar to the options for
       Apache::Session::Store::MySQL.  Example:

	tie %hash, 'Apache::Session::MySQL', $id, {
	    LockDataSource => 'dbi:mysql:database',
	    LockUserName   => 'database_user',
	    LockPassword   => 'K00l'
	};

       Instead, you may pass in an already opened DBI handle to your database.

	tie %hash, 'Apache::Session::MySQL', $id, {
	    LockHandle => $dbh
	};

AUTHOR

       This module was written by Jeffrey William Baker <jwbaker@acm.org>.

SEE ALSO

       Apache::Session

perl v5.12.1							    2008-01-08						   Session::Lock::MySQL(3)

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