ignite-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ray <ray...@cisco.com>
Subject Ignite SQL function questions
Date Wed, 11 Oct 2017 07:21:14 GMT
I've been reading Ignite official document and going through Ignite source
code for a few while now.

>From the source code I see that Ignite can be a key/value store and the data
is stored in a ConcurrentHashMap for every partition.
So this is one copy of data in memory.

For Ignite SQL function, it seems like Ignite creates a H2 table in memory
based on the fields user want to be query with SQL.
So does it mean for every key with @QuerySqlField annotation, there will be
two copies of data in memory(one in ConcurrentHashMap and one in in-memory
H2 table)?

Sent from: http://apache-ignite-users.70518.x6.nabble.com/

View raw message