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Transparen Corporation supports MySQL in high availability server clusters.

MySQL Replication Options for High Availability - New Hampshire

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Transparen Corporation can assist teams of system administrators in implementing high availability systems using MySQL replication.  The most popular replication style in MySQL is the log-shipping enabled through binlogs, but MySQL is also capable of row-based replication and mixed modes of replication.

Each style of replication has advantages and disadvantages.  For instance, row-based replication can create large log files if updates touch many rows.  On the other hand statement-based replication can require more CPU power from the secondary server than may be available.

Advantages of Statement-Based Replication

More concise.  Less bandwidth required - sometimes the bandwidth between servers can be an issue in high performance networks.

Advantages of Row-Based Replication

More thorough.  More exact.  For instance, time-stamps are replicated exactly, versus being shifted slightly by a replication process.

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