“Caché offers all the characteristics sought by those in the NoSQL movement.

CACHÉ 2010 Interview

Jessica Thornsby

JAXenter speaks to Robert Nagle, Vice President of Software Development at InterSystems.

JAXenter asked InterSystems’ Robert Nagle a few questions about
the recent CACHÉ 2010 release, and its new CACHÉ Database
Mirroring functionality and CACHÉ eXTreme for Java

JAXenter: The CACHÉ 2010 release introduces
CACHÉ Database Mirroring. What is this new feature?

Robert Nagle: Database Mirroring is a new
alternative for high availability (HA). It offers equivalent levels
of HA to existing configurations but at lower cost and with less
complexity. Database mirroring can also be used to offer disaster
recovery (DR.)

Database Mirroring uses redundant servers and redundant storage
in place of shared storage and complex cluster management software.
With the plummeting cost of servers and continued decreases in
storage costs, this architecture can be significantly less

Logical replication between the servers relies only on a TCP
connection between them. Mirroring offers “warm” failover and

A summary of the benefits can be seen at the Intersystems website (PDF.)

JAXenter: How does the new CACHÉ eXTreme for
Java solution, CACHÉ bring and Java together?

Robert Nagle: Caché has long offered developers
a powerful development model for complex data. Persistent data can
be manipulated as objects (the most natural paradigm for
developers) or as SQL tables/views (the lingua franca of
reporting). A frugal kernel has consistently delivered
extraordinary performance and extreme scalability. This means that
less hardware is required to deploy the Caché based solution.
Furthermore, Caché deployments are simple to manage and don’t
require constant care and feeding by DBA’s and system

Until recently, to garner these development and deployment
benefits, developers had to use Caché’s server side script
language. With Caché 2010, we’ve now made these benefits available
to Java developers.

With Caché eXTreme for Java, Java developers can tunnel directly
into the Caché kernel to manipulate complex, persistent data as
objects or SQL.

JAXenter: What particular benefits can CACHÉ
eXTreme offer Complex Event Processing applications?

Robert Nagle: Caché eXTreme is particularly
suited for accommodating very low latency, very high volume
incoming data rates. Caché offers the speed of an in-memory
database but as a “real” database, the objects/tables are
persistent. This avoids the resiliency/reliability issues
associated with in-memory solutions.

JAXenter: In your opinion, what benefits can
object database such as CACHÉ, offer that relational databases

Robert Nagle: In complex data modeling, it is
difficult and unwieldy to map the “natural” form of the data
structures onto relational databases. For such applications, an
object model is far more natural.

Of course, all persistent data immediately becomes the target
for reports and queries so that it is vital to have high speed SQL
access to the data. Caché offers both rich, natural persistent
object storage and blindingly fast SQL access to the same
underlying data.

JAXenter: Who is InterSystems targeting, with
CACHÉ 2010?

Robert Nagle: Many of the capabilities in Caché
2010 are targeted at (and often developed in conjunction with) our
existing customers. For example, database mirroring will be a boon
to many of our largest ISVs and direct end users.

InterSystems is also, with the introduction of Caché eXTreme for
Java, targeting Java developers who are tackling problems for which
they either have to develop an in-memory storage framework today or
have to select a highly customized solution to deal with low
latency, high volume data acquisition problems.

JAXenter: NoSQL is a hot topic in the database
world at the moment. What is your opinion on the NoSQL

Robert Nagle: NoSQL is a movement that started
in response to many of the perceived disadvantages of relational
solutions. Relational technologies are very powerful for certain
classes of problems. However when development or deployment models
call for characteristics such as lightweight or flexible or high
levels data complexity or minimal administration, relational
solutions are rarely appropriate.

For three decades, InterSystems has been focused on providing
technologies to developers with exactly these characteristics.
Since its introduction in 1997, Caché has offered precisely these

I believe, however, that NoSQL is a misnomer. I find that
persistent data immediately becomes the target for queries and
reporting. And the most widely used technology for queries is SQL.
The unsuitability of relational technologies for certain operations
does NOT imply that we should reject SQL. As proof of this, we are
starting to see some “NoSQL” solutions beginning to add SQL query

Caché offers all the characteristics sought by those in the
NoSQL movement. AND it offers blindingly fast SQL.

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