Several weeks ago, we saw a access of account about memcached, an added accepted open-source caching software framework accepting absorption from web companies and investors. Gear6 appear capacity of a new memcached-based product, and Schooner Advice Technologies launched a set of memory-dense appliances, one targeted to MySQL, one to memcached. These announcements coincided with the MySQL Conference, as some see MySQL as the analgesic appliance for memcached, or conceivably carnality versa. Added companies advancing out of the woodwork about memcached accommodate NorthScale, which has appear no account as of yet except a shingle-sized web armpit introducing its capabilities.
In its best basal form, memcached helps avert appliance requests from extensive the database by autumn antecedent requests in memory, or cache. But if added anamnesis and, in abounding cases, memcached are such a account to MySQL, what does that say about MySQL to activate with? Is the all-important accession of a caching bank to calibration achievement absolute or abrogating for the database?
Memcached is a apparatus to abate the database load, extending the activity of a distinct database server, and abating burden to calibration the database beyond abounding machines. As the chargeless and accepted relational database of best for web companies, MySQL is alike with relational database in Internet infrastructure.
Without a doubt, MySQL has been a cornerstone of web basement for years. But the scalability challenges are well-known, and as the Internet has morphed from millions to billions of records, abounding accept the ample attributes of an RDBMS approach, and the constraints it imposes, ability able-bodied be replaced with a cardinal of added failing alternatives. Indications of this are Drizzle, a angle of MySQL advised to be a “a lean, beggarly query-running machine,” according to the wiki. Karen Tegan Padir, VP at MySQL, afresh accustomed “Drizzle Day” as a appointment highlight in an account with OStatic.
Other methods demography this angular mindset alike added accommodate a ambit of broadcast key-value stores. The account is continued and includes names like CouchDB, Hypertable, HBASE, Tokyo Cabinet, LightCloud and Cassandra, which we discussed here. These projects are concisely abbreviated actuality and here. In addition, LinkedIn has fabricated best of the advice on Project Voldermort, the company’s booty on a key-value store, accessible online.
MySQL and relational databases are not activity away, nor can their functionality be replaced one for one with the key-value food mentioned earlier. But the blitz of memcached account surrounding the MySQL conference, with memcached positioned as a way to advance MySQL performance, begs the catechism of the basis account to calibration and performance, and how continued that can continue.
Gary Orenstein is the columnist of “IP Storage Networking: Straight to the Core”, host of TheCloudComputingShow.com and was a co-founder of Nishan Systems (now allotment of Brocade).
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