Download PDF by Alex Davies: MySQL Clustering

By Alex Davies

ISBN-10: 0672328550

ISBN-13: 9780672328558

ISBN-10: 0768665019

ISBN-13: 9780768665017

Clustering is the ultimate section of MySQL that makes it actually enterprise-level and ready to compete absolutely with proprietary databases resembling Oracle and Microsoft SQL Server. The elevated variety of high-demand, high-productivity companies and associations deciding upon MySQL, together with MIT, the dep. of place of origin defense, NASA, and Nokia, to call a couple of, desire the good thing about clustering databases for top functionality and scalability.MySQL AB has stepped as much as the plate to supply complicated, high-availability, trustworthy clustering. As this call for has elevated, so has the necessity for info. MySQL Clustering bargains thorough, authoritative guideline on constructing and administering a MySQL Cluster from the builders of the cluster itself. you are going to find out about every little thing from set up and configuration to functionality and troubleshooting during this authoritative reference consultant to MySQL clustering.

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If you get an error such as -bash: mysql: command not found, you have not correctly changed the path. If you get the correct version, you have MySQL-Max installed. cnf), but we do not cover these steps here. If you are not entirely confident with any of these things, you should consult the MySQL manual. Upgrading a Binary Tarball Setup To upgrade a binary tarball setup, you follow this process: 1. gz file in /usr/local/ and then extract it. 2. Make a full backup. 3. Remove the symlink mysql. 4.

Other Methods of Starting a Cluster You might find that it is extremely inconvenient to have to log in to each machine to start ndbd, particularly if you have a very large number of nodes in your cluster and/or exotic authentication methods on the servers that make up your cluster which make logging in to lots of servers a time-consuming and tedious process. Several tricks are worth mentioning; the first is to use SSH to start all your data nodes (using the ssh -t command to issue a command and then log straight out).

What you are now going to do is kill some nodes to make sure that the cluster remains working. First of all, you open the MySQL client on one of the storage nodes and issue the SELECT query. Next, you go to the management node and either issue kill -9 to the ndb_mgmd process or, if the management node is alone on the server (in other words, if there is not a SQL or storage node also on the same server), unplug the network or power cable. Then you return to the SQL node (that is, the MySQL client) and issue the SELECT query, and you should find that it still works.

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MySQL Clustering by Alex Davies


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