MySQL innodb_buffer_pool_size and swap

I have a few of my MySQL configurations located here
Based on this, I have an innodb_buffer_pool_size of 12G, but my data is 10G larger.
I'm sure that we do not consistently access 22G of data because a portion of it is just old logs.
However, for performance sakes, should I just increase the RAM to ~24G or higher?? because my swap is being used pretty heavily too.
This topic first appeared in the Spiceworks Community

What it indicates us how we can read buffer pool is using by db is good or bad etc...As size increase in column(size_for_estimate),you can see the reduction of physical Read,so if you can see drastically reduction in this then you should increase the buffer cache.
this advisory just give to estimation that increasing buffer cache will help you to reduce phycial IO as more blocks will be get from memory after incresing buffer cache.

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Satellite S50T-B - Adding RAM and swapping HDD for SSD

HI there,
I have recently purchased the Satelitte S50t-B laptop and have a few question about upgrading:
1. What is the recommended RAM to add (8GB)
2. What is the recommended SSD to add?
3. Are there any instructions to add RAM and an SSD to my laptop?
4. Will I void my warranty by installing more RAM and swapping the current hard drive for an SSD?
Thank you for your help

This notebook is listed on Toshiba page:
http://www.mytoshiba.com.au/products/computers/satellite/s50/pspq8a-008008/specifications
- What is the recommended RAM to add (8GB)
The unit supports 16GB RAM, so you can add an second PC3-12800 8GB DDR3L (1600Mhz) SO-DIMM module (i.e PA5104U-1M8G)
- 2. What is the recommended SSD to add?
Its up to you there are different SSD drive on the market and most of the 2.5 SATA SSD drives should be compatible.
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Difference between MySQL null and JAVA null

When I create a new record in my MySQL db and some of the values are not intered, MySQL thinks of them as null. Java makes an error when the variable is used. But when I set the values to ' ' (blank) java sees it as null and makes no error.
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BR Soren

"" and null is totally different thing.
you can try checking for null instead of "".

What should i do with an Oracle 11g Database, MySQL database and a dump file.

I just joining to a new work field, almost about a database and i know "NOTHING" about this field.
My company has a system that running by Oracle Database, the problem is that Oracle Database will cost a lot of money when my company expands.
So the quest is converting Oracle Database to MySQL database.
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Thanks alot.

I just joining to a new work field, almost about a database and i know "NOTHING" about this field.
My company has a system that running by Oracle Database, the problem is that Oracle Database will cost a lot of money when my company expands.
So the quest is converting Oracle Database to MySQL database.
I predict that converting to MySQL will cost your company more as it expands. As you expand managing contention becomes more important - Oracle does this for you. I do not think MySQL does, so you'll have to write more code to deal with this, costing the company money. A big part of making application scalable and reliable is to use stored procedures, how good are MySQL's compared to PL/SQL's. What other features are there that MySQL has that will benefit your company that Oracle doesn't. What do you need to think about as your company expands that need to be taken care of in the database. I would have thought a migration from MySQL to Oracle would be more common to deal with expansion.
As you know "NOTHING" you need to think about what each database can give you for the next 10 years to cope with you businesses potential requirements, and extimate how much it will cost to implement these requirements, then make the decision

How can I include a MySQL table and records with the PUT of my Dreamweaver site?

I am using .php to validate a user code against one of four codes that I am providing to potential clients. They enter that code, along with a default user id and the appropriate page is then displayed for them. Everything is working fine on the desktop. I need to have this table and the records created on my remote server. I tried saving the table in the Connections folder, but that didn't help. Everytime I enter a code (valid or invalid) on the live site, I get the following message: "Table 'boundsauctions_com.promocode' doesn't exist". Is there someway to include the table and records in my Dreamweaver folders for the site?
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Hope this helps. If you need any more details let me know.
Lawrence Cramer - *Adobe Community Professional*
http://www.Cartweaver.com
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available in PHP, ColdFusion
Stay updated - http://blog.cartweaver.com

My MacBook (late 2009 Mac OS X Lion 10.7.5 (11G63) often runs VERY slow...beach ball of death frequently. My page ins (5.29GB), page outs (5.64BG), and swap files (10GB) seem extremely high in comparison to most other discussions in here. HELP!!??

My MacBook (late 2009 Mac OS X Lion 10.7.5 (11G63) often runs VERY slow...beach ball of death frequently. My page ins (3.29GB), page outs (5.64BG), and swap files (10GB) seem extremely high in comparison to most other discussions in here. I don't know how to copy the pie chart so it shows on here but here's what it says right now:
Free - 176 MB
Wired - 592MB
Active - 843MB
Inactive - 432MB
Used - 1.82 GB
VM size - 198GB
The page ins and page outs have 0 bytes/sec in the parenthesis even though the numbers are so high.
Any help anyone could provide would be greatly appreciated!!!

You difinately need more ram. 2gb is the bare minimum to run just the Lion OS, anything extra will slow your Mac to a crawl. Upgrade to 8gb from either Crucial http://www.crucial.com/ or OWC http://eshop.macsales.com/
And you will be a happy camper!

I can go into a apple store and swap sides of my iPhone 5?

I can go into a apple store and swap sides of my iPhone 5?

What sides do you mean?

MultiThreaded compare and swap question.

I'v got this assignment and I'm not sure which approach to take. I think I've got it right with my second try, but I was wondering if I could get some sort of verification or something.
"Use Java monitors to implement the atomic Compare-And-Swap instruction, which has the following effect: CSW(a,b,c): < if (a==c) { c = b; return(0);} else {a = c; return 1;} > (In most concurrency books and papers instructions within angle brackets < > means that everything within the brackets is done in one uninterruptible, atomic action.) "
Is this right?
public synchronized int compareAndSwap(Object a, Object b, Object c)
        if ( a.equals( c ) )
            c = b;
            return 0;
        a = c;
        return 1;
    }Or is this?
public int compareAndSwap(Object a, Object b, Object c)
        synchronized ( a )
            synchronized ( b )
                synchronized ( c )
                    if ( a.equals( c ) )
                        c = b;
                        return 0;
                    a = c;
                    return 1;
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As far as making it an atomic action, you do that
with synchronized, BUT more detail might be needed
about the context in which it's supposed to be atomic
to know what to sync on.OK, thanks. I was thinking I was crazy or something, but his question is just unclear. I have no idea what he wants and I'm not sure he does either.
Thanks.

MySql database and php code on different servers

I created a table on a MySql database on server A. Now I'm
trying to create
a page to display the contents of the table. I know that the
html code ( and
php) is on a different server (server B). I managed to create
a database
connection however when I try this connection I cannot see
the table I
created. When I click on the Connection name I get the Stored
Procedures,
Tables and View list. I click on the Tables and although I
get a connection
to the server A, no table is displayed.
Am I trying to do something silly here?
any help will be appreciated.
Twanny

> Am I trying to do something silly here?
I do it this way all the time. My testing server is local to
my development
LAN, but the MySQL server and database is remote (on the
remote site). To
make this work, you would have to make sure that the remote
server permits
an external connection. If it does, you should be golden.
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
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"Twanny" <[email protected]> wrote in message
news:gabbu1$ngv$[email protected]..
>I created a table on a MySql database on server A. Now
I'm trying to create
>a page to display the contents of the table. I know that
the html code (
>and php) is on a different server (server B). I managed
to create a
>database connection however when I try this connection I
cannot see the
>table I created. When I click on the Connection name I
get the Stored
>Procedures, Tables and View list. I click on the Tables
and although I get
>a connection to the server A, no table is displayed.
>
> Am I trying to do something silly here?
>
> any help will be appreciated.
>
>
>
>
> --
> Twanny
>

Different md5 in phpMyAdmin and in mySql client (and PHP)

I have trouble with md5 function - mySql in command line and PHP returns one value, phpMyAdmin another. I have current packaged - PHP 5.2.9-3, mysql 5.1.34-1 and phpmyadmin 3.1.5-1. I searched web for possible reason, only one I found was different encoding, but I doubt that binary representation of string 'aaa' differ between any common encoding (at my machine 8859-1, 8859-2,utf-8). Please, could somebody post here result what is result at your system of
SELECT MD5('aaa');
from command line mysql client and from phpmyadmin ?
Last edited by stabele (2009-05-23 18:58:56)

they are identical for both:
Variable_name Value
character_set_client utf8
character_set_connection utf8
character_set_database latin1
character_set_filesystem binary
character_set_results utf8
character_set_server latin1
character_set_system utf8
character_sets_dir /usr/share/mysql/charsets/

How to conncet mysql database and oracle database 11g2 on linux 5.4

Hi,
Can anyone help me to connect mysql server database to Oracle
database on Linux OS?
I have done all things, but I am getting a problem in installing dg4odbc
driver on Oracle database. In a simple word, I don't know how to create
listener between mysql database and Oracle database.
If anyone knows that please help me in configuring dg4odbc for Oracle. OS
-Linux 5.4 and refer any doc or link.
oracle 11g2 11.2.0.1
i follow the metalink id - 466228.1 ( but cant successed).
Thanks and regards,
pritesh ranjan

hi pl z clear me it is required to install manully the dg4odbc driver for oracle to connect MySQL server database. because in my $ORACLE_HOME/hs/admin/initdg4odbc.ora is present automatically.
details of the initdg4odbc.ora
# This is a sample agent init file that contains the HS parameters that are
# needed for the Database Gateway for ODBC
# HS init parameters
HS_FDS_CONNECT_INFO = mysql_odbc
HS_FDS_TRACE_LEVEL = off
HS_FDS_SHAREABLE_NAME = /usr/lib/libmyodbc5w.so
# ODBC specific environment variables
set ODBCINI=/etc/odbc.ini
set LD_LIBRARY_PATH=/usr/lib
# Environment variables required for the non-Oracle system
#set HOME=/home/oracle
~
~
~
"initdg4odbc.ora" 20L, 437C
details of the listener.ora file
DG4ODBC =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA=(SID=dg4odbc))
(HS=OK)
SID_LIST_ORCL =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = orcl)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/dbhome_1)
(SID_NAME = ORCL)
ADR_BASE_DG4ODBC = /u01/app/oracle
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = pritesh11gprim.oracle.com)(PORT = 1521))
ADR_BASE_ORCL = /u01/app/oracle
"listener.ora" [readonly] 37L, 779C 35,0-1 85%
details of tnsname.ora file
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.132)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
DG4ODBC =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))
(CONNECT_DATA=(SID=DG4ODBC))
(HS=OK)
MYSQL =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))
(CONNECT_DATA=(SID=MYSQL))
(HS=OK)
when i m going to start the listener it could not be started..
details of the mysql server database
[root@pritesh11gprim ~]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.10 MySQL Community Server (GPL)
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
mysql> show databases;
| Database |
| information_schema |
| demo |
| mysql |
| performance_schema |
| pritesh |
| test |
6 rows in set (0.01 sec)
if any where i m wrong then plz suggest me......
thanks & regards
pritesh ranjan

Database block size and swap

Hi,
I changed the db_block_size from 4k(oracle 9.2.0.1) to 8k on my solaris machine. The swap use has increased dramatically I am wondering is there any relation between db_block_size and swap.

Dup Database Block Size, please check our replies in other post.

Zfs cache vs. Physical and swap memory

On Solaris 10: We are calculating the available physical and swap memories by using these
@ system calls 'sysconf' and 'swapctl' with appropriate parameters.
I don'tthink these system calls explicitly take the 'zfs cache' into account.
Can you please confirm, Or do we have any other command set to include 'zfs cache pool' also.
regards,
-ashokM
Edited by: aMohanty on Sep 8, 2009 3:24 AM

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I have purchased a book that teaches the use of MySQL through the Terminal. I have tried installing MySQL several times (both the tar and dmg files) and it doesn't seem to work. I have employed instructions from my book, from the MySQL site, and from other users in these forums. I click on the MySQL icon in the preferences pane and the window pops up telling me that MySQL is running. However, none of the commands I type in terminal, such as "CREATE DATABASE", will work; I just get the "command not found" error message.
I don't really have any experience using Terminal, and I am assuming that there is some step that the authors of the tips I've tried have left out because it seems obvious to them. I would greatly appreciate it if anyone could point me to a *complete and thorough* list of instruction from download to actually typing commands into MySQL and/or instructions to get to a MySQL specific window in Terminal, if there is such a thing.
Also, perhaps the most important question for me to ask is "Can I use MySQL on my iBook, or does it only work if I actually have a server?".
Thanks!!
Message was edited by: Gyclone

Before you continue here, please ensure you have a good archive of your boot disk. (When you start trying to install stuff, there is the possibility of perturbing the environment.)
As for loading MySQL, MySQL is built into Mac OS X Server. No need to install it, unless you need a different version -- and you probably don't want to start down that path until and unless you (really) need to.
If you have Mac OS X client here (you're posting your question in the server forum), you might want to start out with the [MAMP|http://mamp.info/en/index.php] kit.
The commands you are trying to enter into terminal are probably expected to be entered into MySQL itself, rather than into the bash shell. Creating the database is usually among most involved steps -- its too bad its one of the first steps required.
You have some steps needed to get going, and typical sequences (from memory) look like this:
$ mysql -u DBPrivUser
mysql> create database DatabaseName;
mysql> quit;
The following shows an example of the status command:
$ mysql -u DbPrivUser -p DatabaseName
Enter password: DbPrivUserPwd
mysql> status;
If you hit errors here, post up which MySQL package you are using (if this isn't Tiger or Leopard server), what commands were used, and what the error message text was.
As for for complete and thorough documentation, either look at the documentation for whatever package is involved, for another (similar) package (eg: [Drupal|http://www.drupal.org]) or take a look at the [MySQL.com|http://www.mysql.com] web site. Or consider getting somebody in to help out -- this sort of stuff is quite difficult to do remotely; without having a view into what you're doing, and what commands are entered, and what response is posted back from the system.

Multiple homes and swap allocation

I have 10gb of hp-Unix and i have 2 oracle homes what swap parameter should be.
2 oracle software installations 10gR2

user586263 wrote:
I have 10gb of hp-Unix and i have 2 oracle homes what swap parameter should be.Couldn't you clarify ? Is it 10Gb RAM ? What's the link between the number of Oracle home and swap size ?
What Oracle version ? There are some advices in Oracle documentation, have you read the hardware requirement for you version ?
Nicolas.

MySQL innodb_buffer_pool_size and swap

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