... "/var/run/mysqld/mysqld1.sock");
$NODE[] = array("localhost", 3308, "/var/run/mysqld/mysqld2.sock");
$NODE[] = array("localhost", 3309, "/var/run/mysqld/mysqld3.sock");
176 ... sec)
Conclusion
High availability is a nontrivial concept to implement in practice. In this chapter, we
presented a look into high availability and how you ca...
... is
relatively high (it is time-consuming compared to accessing main memory directly),
modern operating systems can do it so quickly that the penalty isn’t normally an issue
unless it reaches such a high ... swapping at a high level periodically
to reclaim memory. Be sure to measure memory usage over a period of time to ensure
you are not observing a normal cleanup operation.
When period...
... sub-
layer in MySQL an area not well understood or covered by other reference sources.
How MySQL Communicates Performance
There are two mechanisms you can use to govern and monitor behavior in the MySQL
server. ... performance in MySQL, there
is no (free) advanced profiling tool available.
While the basic MySQL installation does not include formal tools for monitoring da-
tabase impro...
... key cache and the MyISAM stor-
age engine, see the online MySQL Reference Manual.
MySQL, Replication, and High Availability
There is a higher probability of corruption of MyISAM data than InnoDB ... EXPLAIN, there is no single tool in a standard MySQL distribution that you
can use to profile a query in MySQL. The “Optimization” chapter in the online MySQL
Reference Manual has a ho...
... critical data in your basement or in a public place may not be
safe enough.
High availability
As mentioned earlier, high availability options form the first layer of defense in a
disaster recovery ... online MySQL Reference Man
ual. The following shows a configuration file with typical settings for the first file, cov-
ering the data you want to back up:
[mysqld]
datadir = /usr/loca...
... chapter introduces the MySQL Enterprise suite of tools and shows you how they
will save you time while keeping your MySQL servers running at the highest levels of
performance and availability. We also ... stdout=PIPE)
mysql_ command = [" ;mysql& quot;,
" host=%s" % (server.host),
" user=%s" % (server.sql_user.name),
" password=%s" % (server.sql_user...
... similar perform-
ance problems.
Use MySQL replication
You have seen in previous chapters how important MySQL replication is for scale-
out, load balancing, and high availability. The cloud makes these ... makes these features easier
to use because you can create as many MySQL instances as you need to implement
almost any MySQL high availability solution.
Use standard AMIs
The c...
... will be well on your way to making MySQL
Cluster the best high- performance, high- availability solution for your organization. For
more information about optimizing MySQL Cluster, see the white paper ... paper “Optimizing
Performance of the MySQL Cluster Database” at http://www .mysql. com/why -mysql/
white-papers /mysql_ wp_cluster_perfomance.php.
560 | Chapter 15: MySQL Cluster...
... 457, 463
Query Analyzer, 458
MySQL Enterprise Server, 456
MySQL Forge, 155
MySQL Migration Toolkit, 302
MySQL monitor, 294
MySQL Monitor and Advisor (MONyog) tool,
317
MySQL Proxy
data sharding ... promotion, 135–141
MySQL Query Browser, 312–313
MySQL servers
benchmark suite, 318–319
communicating performance, 293
GUI tools, 302
MySQL Administrator, 302–312
MySQL Query Bro...