Mysql Cluster Installation And Upgrades - Oracle 5.0 Reference Manual

Multiple data node processes.
on a single host, it is not always advisable to do so for reasons of performance and high availability,
as well as other considerations. In particular, in MySQL 5.0, we do not support for production use any
MySQL Cluster deployment in which more than one
Multiple network addresses.
Use of these is liable to cause problems: In the event of a data node failure, an SQL node waits for
confirmation that the data node went down but never receives it because another route to that data
node remains open. This can effectively make the cluster inoperable.
17.1.5.10. Previous MySQL Cluster Issues Resolved in MySQL 5.0
The following Cluster limitations in MySQL 4.1 have been resolved in MySQL 5.0 as shown below:
• Character set support.
collations available in MySQL 5.0.
• Character set directory.
Cluster support to a nondefault location and change the search path for font description files using
either the
MySQL 5.0 searched only the default path—typically
charsets—for character sets.)
• Metadata objects.
1600. Beginning with MySQL 5.0.6, this limit is increased to 20320.
• Query cache.
MySQL's query cache. See
• and
IGNORE
In MySQL 5.0.19 and earlier,
only for primary keys, but not for unique keys. It was possible to work around this issue by removing
the constraint, then dropping the unique index, performing any inserts, and then adding the unique
index again.
This limitation was removed for
#17431.)
•
auto_increment_increment
auto_increment_increment
variables are supported for

17.2. MySQL Cluster Installation and Upgrades

This section describes the basics for planning, installing, configuring, and running a MySQL Cluster.
Whereas the examples in
MySQL Cluster Installation and Upgrades
Note
We may support multiple data nodes per host in a future MySQL release,
following additional testing. However, in MySQL 5.0, such configurations can be
considered experimental only.
Multiple network addresses per data node are not supported.
Note
It is possible to use multiple network hardware interfaces (such as Ethernet
cards) for a single data node, but these must be bound to the same address.
This also means that it not possible to use more than one
connection in the
IP Connections", for more information.
The
NDBCLUSTER
Beginning with MySQL 5.0.21, it is possible to install MySQL with
[401] or
--basedir --character-sets-dir
Prior to MySQL 5.0.6, the maximum number of metadata objects possible was
Unlike the case in MySQL 4.1, the Cluster storage engine in MySQL 5.0 supports
Section 8.6.3, "The MySQL Query
functionality.
REPLACE
INSERT
INSERT IGNORE
NDBCLUSTER
Section 17.3, "MySQL Cluster Configuration"
While it is possible to run multiple cluster processes concurrently
ndbd
file. See
config.ini
storage engine supports all character sets and
/usr/local/mysql/share/mysql/
IGNORE, UPDATE
and
REPLACE
and auto_increment_offset.
[1446] and
auto_increment_offset
tables beginning with MySQL 5.0.46.
1530
process is run on a single physical machine.
[tcp]
Section 17.3.2.7, "MySQL Cluster TCP/
[402] options. (Previously,
Cache".
IGNORE, and
REPLACE
in MySQL 5.0.20. (See Bug
The
[1449]
provide more in-depth
section per
in
ndbd
were supported
server system