Am 02.09.2015 um 09:55 schrieb S.Mohammad Emami Razavi:
I want to cluster MySQL to several servers and have no idea to start. Some
questions have stuck to my mind such as How to balance connections and How
to make mesh of shards and ...
Can you show me a way to do these tasks correctly?
I want to cluster MySQL to several servers and have no idea to start. Some
questions have stuck to my mind such as How to balance connections and How
to make mesh of shards and ...
Can you show me a way to do these tasks correctly?
Many Thanks,
make many setups very scaleable and much more
efficient as do the work in php-scripts with all the needed
decisions read-query, which mysql-host and is the host
currently available
I think this would be finally a thing to directly include
in mysqlnd and leave default off
The replication and load
Miguel,
On Fri, Dec 25, 2009 at 4:56 PM, Miguel Angel Nieto
cor...@miguelangelnieto.net wrote:
Load balancing, or high availability?
I do not think there is anything good and simple AND generic out of
the box. As previous posters have noted, you generally have to build
something on top
Miguel,
On Sun, Dec 20, 2009 at 6:21 PM, Miguel Angel Nieto
cor...@miguelangelnieto.net wrote:
Hi,
I am searching fot a Mysql Load Balacing tool. I read about mysql
proxy, sqlrelay, haproxy...
Load balancing, or high availability?
I do not think there is anything good and simple AND generic
Load balancing, or high availability?
I do not think there is anything good and simple AND generic out of
the box. As previous posters have noted, you generally have to build
something on top of other tools.
Hi,
I have the HA solved with MMM. Now, I want load balacing, sending read
queries
Baron:
Load balancing, or high availability?
I do not think there is anything good and simple
We use MySQL master-master replication to keep
geographically separated databases in sync.
It works very well.
We built a management layer on top of it to allow
the endpoints (Web servers) to talk
about LVS and keepalived but I can't see the
difference between them. Are they the same thing? I want the load
balancing for my replicated servers. I suppose that LVS can't
distinguish between inserts and selects (to send queries to the master
o slave server).
I do not know about keepalived
you are going
to deploy and how much scability you need.
Thank you. I have read about LVS and keepalived but I can't see the
difference between them. Are they the same thing? I want the load
balancing for my replicated servers. I suppose that LVS can't
distinguish between inserts and selects
2009/12/21 Miguel Angel Nieto cor...@miguelangelnieto.net:
Hi,
I am searching fot a Mysql Load Balacing tool. I read about mysql
proxy, sqlrelay, haproxy...
What do you prefer?
Hi,
The solutions I have heard most from our customers (in production) are
not mysql-specific:
1) Simple, not
the
difference between them. Are they the same thing? I want the load
balancing for my replicated servers. I suppose that LVS can't
distinguish between inserts and selects (to send queries to the master
o slave server).
See you.
--
Lo que haría sería hacerme pasar por sordomudo y así no tendría que
Hi,
I am searching fot a Mysql Load Balacing tool. I read about mysql
proxy, sqlrelay, haproxy...
What do you prefer?
What are the benefits and bugs?
:)
Thank you.
--
Lo que haría sería hacerme pasar por sordomudo y así no tendría que
hablar. Si querían decirme algo, tendrían que escribirlo
Is it possible to do load balancing with 3 servers which also cluster
and fail over (High Availibity) with MySQL? Can somebody give me the how
to or URL to setup?
Willy
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For list archives: http://lists.mysql.com/mysql
To unsubscribe:http://lists.mysql.com
Hi,
When I read Jk's document on MySQL proxy:
http://jan.kneschke.de/projects/mysql/mysql-proxy/
In Load balancing part, he mentioned that:
We use SQF (shortest queue first) to distribute the load across the
backends equally. Each backend will get the same number of connections.
My
Ed Pauley II wrote:
Continuent's m/cluster will not work for me as it does not allow
replication across a WAN.
Yeah, known problem...
We have an offsite backup that needs to be in
the replication (2-way to make switching back and forth easy) chain.
Why do you need a backup site to write
Renato Golin wrote:
Ed Pauley II wrote:
Continuent's m/cluster will not work for me as it does not allow
replication across a WAN.
Yeah, known problem...
We have an offsite backup that needs to be in the replication (2-way
to make switching back and forth easy) chain.
Why do you need a
?
I'd rather go for the first one because the second one will raise more
problems than solve, specially related to network delays.
If, in the first case, one master fails you can issue a change master
to the other master and it'll keep running. As you'll only have the
slave there will be no load
to load
balance the slaves at each location.
We use a Netscaler 9000 in front of our slaves but you can use any load
balancing appliance really. We used to use an Alteon.
-jsd-
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To unsubscribe:http
-out stack but nothing on Citrix.com mentions MySQL. I also read
that friendster wrote a custom script for NetScaler to work in a MySQL
environment. I would rather not have to do that. Is there an out-of-box
solution for load balancing MySQL. My understanding is that MySQL is a
little more
require a different setup. Is anyone actually using Sequoia? Does anyone
use an appliance for load balancing MySQL? LVS seems like a good
possibility but I would rather have an out-of-box solution since I will
be repeating this setup at a remote location.
Sorry, did not try Sequoia so
wrote a custom script for NetScaler to work in a MySQL
environment. I would rather not have to do that. Is there an out-of-box
solution for load balancing MySQL. My understanding is that MySQL is a
little more complicated than HTTP load balancing, which we already do
with Coyote Point
white paper shows NetScaler in the
scale-out stack but nothing on Citrix.com mentions MySQL. I also read
that friendster wrote a custom script for NetScaler to work in a MySQL
environment. I would rather not have to do that. Is there an out-of-box
solution for load balancing MySQL. My
Ed, in Jeremy Zawodny's (excellent) book High Performance MySQL,
there is a chapter on load balancing - though it's a bit more of a
theoretical discussion than a how-to.
There are a couple of commercial products mentioned briefly - Veritas
and EMIC Networks.
One idea he presents might work
on Citrix.com mentions MySQL. I also read
that friendster wrote a custom script for NetScaler to work in a MySQL
environment. I would rather not have to do that. Is there an out-of-box
solution for load balancing MySQL. My understanding is that MySQL is a
little more complicated than HTTP load
on Citrix.com mentions MySQL. I also read
that friendster wrote a custom script for NetScaler to work in a MySQL
environment. I would rather not have to do that. Is there an out-of-box
solution for load balancing MySQL. My understanding is that MySQL is a
little more complicated than HTTP
Kevin Burton wrote:
Hey Gang.
I wanted to get this out on the list and facilitate some feedback.
http://www.feedblog.org/2006/07/announce_lbpool.html
What does this have over MySQL Connector/J's load balancing?
--
Christopher G. Stach II
--
MySQL General Mailing List
For list
There was a thread before about this... this is much better than connector
J's load balancing.
You can take machines out of production, add thhem back in, it's MySQL slave
aware, etc
On 7/19/06, Christopher G. Stach II [EMAIL PROTECTED] wrote:
Kevin Burton wrote:
Hey Gang.
I wanted to get
.
==
The lbpool project provides a load balancing JDBC driver for use with DB
connection pools. It wraps a normal JDBC driver providing reconnect
semantics in the event of additional hardware availability, partial system
failure, or uneven load distribution. It also evenly distributes all new
Hi All,
Has anybody implemented Load Balancing Mysql with Foundry
Load Balancers, I know that the ServerIron series switches dont have a
way to do a Layer 7 health check for mysql, as it is not a default
port profile, any help from who has dome some work on foundry switches
would
. The other option is load balancing and replication. My
problem with this setup is that there will be too many points of
failure since there can only be one master for each slave. Not to
mention the lag that may be introduced since there would be multiple
servers at each location. It is crucial
times we are seeing 1200 to 2000 QPS. For good reason our
database servers have high load averages during peek times. I have been
looking at MySQL clustering, but due to the fact that our database is
rather large the in memory only restriction will make it unfeasible. The
other option is load
I'm experimenting with using ConnectorJ 3.1.7 to connect to MySQL slaves
to handle load balancing queries.
The environment would either include a hardware loadbalancer or round
robin DNS (or static configuration). The main component though is
having the JDBC driver continually reconnect
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Kevin A. Burton wrote:
I'm experimenting with using ConnectorJ 3.1.7 to connect to MySQL slaves
to handle load balancing queries.
The environment would either include a hardware loadbalancer or round
robin DNS (or static configuration
Kevin A. Burton wrote:
Jason J. W. Williams wrote:
Has anyone ever had a problem with Alteon load balancers leaving the
MySQL connections half open? After about a minute of heavy use the
Alteon has completely DoS'd our MySQL servers. I know we must be doing
something wrong...just not sure what.
Ian Sales (DBA) wrote:
Kevin A. Burton wrote:
Define DoS?
- Denial of Service...
ug... Thats not what I meant... I mean what type of behavior were you
noticing? Just all connections being occupied on the server?
Kevin
--
Use Rojo (RSS/Atom aggregator). Visit http://rojo.com. Ask me for an
Has anyone ever had a problem with Alteon load balancers leaving the
MySQL connections half open? After about a minute of heavy use the
Alteon has completely DoS'd our MySQL servers. I know we must be doing
something wrong...just not sure what. Any help is greatly appreciated!
Best Regards,
Jason
Jason J. W. Williams wrote:
Has anyone ever had a problem with Alteon load balancers leaving the
MySQL connections half open? After about a minute of heavy use the
Alteon has completely DoS'd our MySQL servers. I know we must be doing
something wrong...just not sure what. Any help is greatly
We have fail-over using Linux Virtual Server, now upgrading to Red Hat
Cluster Suite. We do not implement load-balancing.
Here is why.
In order to have full true load balancing, you need to have two or more
MySQL database server replicating data to each other in real time.
Currently your only
We also use Linux Virtual Server for load balancing, but only on our
read-only cluster. Our current levels of RW traffic do not demand more
than one machine.
Russell E Glaue wrote:
We have fail-over using Linux Virtual Server, now upgrading to Red Hat
Cluster Suite. We do not implement load
Kevin A. Burton wrote:
Was curious what people on the list are using for load balancing.. there
are a number of techniques here but it would be interesting if people
could share some real-world experiences
HTTP load balancing is pretty well understood but there's not a bunch
out
Was curious what people on the list are using for load balancing.. there
are a number of techniques here but it would be interesting if people
could share some real-world experiences
HTTP load balancing is pretty well understood but there's not a bunch
out there on MySQL load balancing
Hi All,
I'm reading High Performance MySQL. In my humble opinion is an very good
book.
Congratulations to the authors.
In the chapter Load Balancing and High Availability is cited the Tony
Bourke's book Server Load Balancing.
Someone read it? is one good reference font?
I need study
Problem: all the mod_perl pages run a few write queries, so they will require a
connection to the main database server. Since around
80% of our queries are reads, would you recommend that each script has two
connections: one for read queries, and one for write
queries? We can determine which
RAID-5 array, and it only runs MySQL.
I am intending on implementing a load-balancing solution, whereby we have a pool of
around 3 slaves replicating off the main
database server. mod_perl scripts can then make a connection to a random slave, and
send their read queries there. Hopefully we can
with 1.5GB RAM and a 73GB SCSI RAID-5 array, and it only runs MySQL.
I am intending on implementing a load-balancing solution, whereby we have
a pool of around 3 slaves replicating off the main
database server. mod_perl scripts can then make a connection to a random
slave, and send their read
I am interested in setting up 3 read only slaves and one write master. I
am thinking of implementing this because one server is slower than 3
;-). But anyway, I have read all the docs and I am fairly sure how I
want do this and keep the sanity checking in the loop. What I am
considering doing is
From: James [mailto:[EMAIL PROTECTED]
I am interested in setting up 3 read only slaves and one
write master. I am thinking of implementing this because
one server is slower than 3 ;-). But anyway, I have read
all the docs and I am fairly sure how I want do this and
keep the sanity
Hi,
I employ a simple method, I have a 'status' table on the master and have a
cron job that updates this table with the current time (now()) every minute.
I test all the slaves each minute and if the time in the status table gets
too far behind the actual time then it flags a warning to me.
, and load balancing between them...
From: James [mailto:[EMAIL PROTECTED]
I am interested in setting up 3 read only slaves and one
write master. I am thinking of implementing this because
one server is slower than 3 ;-). But anyway, I have read
all the docs and I am fairly sure how I want
From: James [mailto:[EMAIL PROTECTED]
Mike Andrew,
Excellent ideas...
The reason I am considering checking the log location, is
because normal lusers will be using this software, so it
won't be too good for them to see errors about the slave
being out of synch. (Some 20 people
On Thu, Jan 29, 2004 at 03:40:17PM -, Andrew Braithwaite wrote:
Hi,
I employ a simple method, I have a 'status' table on the master and have a
cron job that updates this table with the current time (now()) every minute.
I test all the slaves each minute and if the time in the status table
PROTECTED]
Subject: Re: Read Slaves, and load balancing between them...
On Thu, Jan 29, 2004 at 03:40:17PM -, Andrew Braithwaite wrote:
Hi,
I employ a simple method, I have a 'status' table on the master and
have a cron job that updates this table with the current time (now())
every minute
On Thu, Jan 29, 2004 at 11:47:52PM -, Andrew Braithwaite wrote:
I believe MySQL 4.1 has support for ssl replication but it's still alpha at
the moment.
If you are referring to connecting to a MySQL server from an application to
query it then the following applies:
---from the manual---
When
On Fri, Jun 15, 2001 at 09:54:32AM +0200, Wouter de Jong wrote:
On Thu, Jun 14, 2001 at 05:05:56PM -0700, Justin Bauer wrote:
You can do load balancing, you just need to have the same information on
each server. With mysql you would use Replication to keep the servers
sync'ed.
Well
, 2001 10:21
To: [EMAIL PROTECTED]
Subject: load-balancing with NFS
*This message was transferred with a trial version of
CommuniGate(tm) Pro*
Hello,
I have an idea about setting up 1 machine that contains the
var-directory (RAID5 for backup, etc). Then I mount the var
directory
a shared
/var/ directory for all databases inside ? I want load-balancing, cause my server
can't handle the pressure good anymore.
database-01 IN A 192.168.0.101
database-01 IN A 192.168.0.102
192.168.0.101: (running mysqld)
192.168.0.100:/opt/database/mysql/var /opt/database/mysql/var
192.168.0.102
filer)
regards
Sven Huster
Senior IT Systems Engineer
-Original Message-
From: Wouter de Jong [mailto:[EMAIL PROTECTED]]
Sent: 13 June, 2001 10:21
To: [EMAIL PROTECTED]
Subject: load-balancing with NFS
*This message was transferred with a trial version of
CommuniGate(tm) Pro
On Tue, Jan 30, 2001 at 02:35:29PM -0700, Nathan Cook wrote:
It seems like I have seen somewhere that load balancing and
fail-over-services are available for MySQL, to share the load and
mirror the data between two machines.
Other than MySQL's built-in replication, which doesn't handle
fail
:: Programmer
[ phone - 208.343.3110 ][ pager - 208.387.9983 ]
- Original Message -
From: "Jeremy D. Zawodny" [EMAIL PROTECTED]
To: "Nathan Cook" [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Thursday, February 01, 2001 1:51 AM
Subject: Re: Load Balancing.
On Tue, Jan 30, 2001
It seems like I have seen somewhere that load balancing and
fail-over-services are available for MySQL, to share the load and mirror the
data between two machines.
Is this possible and if so where can I read more about it?
Thank You,
.:: Nathan Cook [ [EMAIL PROTECTED] ] ::.
Systems Network
On Tue, Jan 16, 2001 at 03:41:14PM +0800, Ganen Ganeswaran wrote:
I'm a relative newbie in mySQL. I have 10 mySQL databases. At the
moment I'm only using 1 of the databases. I was wondering if it's
possible (and how) to setup some sort of replication/load balancing
between all 10 dbs
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