Re: How do I support schema change in Ignite as well as addition of new Cache?

[Nikolai Tikhonov <nt...@apache.org>]

Hi,

You can create/drop caches (hence tables) in runtime. If we don't have
classes in runtime then you can configure via QueryEntitry. Refere the
following page https://apacheignite.readme.io/docs/indexes section *QueryEntity
Based Configuration*. In the next 2.3 release (which community plan to
release in nearest future) Apache Ignite will support alter table add
column command. You can track status this features by the following links:

https://issues.apache.org/jira/browse/IGNITE-5572
https://issues.apache.org/jira/browse/IGNITE-6283


On Sat, Sep 30, 2017 at 12:18 PM, Sumit Sethia <su...@gmail.com>
wrote:

> Hi,
> I want to dynamically create cache for new mysql table in Ignite. I don't
> have table's class definition at runtime. I regularly get new data in HDFS
> for those tables in avro format. I want to ingest that incremental data
> into Ignite Cache by creating cache at runtime if it doesn't exist for that
> table and then put data into cache. Also I want to query on that data. Plus
> what happens if schema changes in MySql ? Will BinaryObject in Ignite help
> in solving my use case ? I tried to read Binary Object documentation but
> couldn't get it. Please help.
>
> Thanks,
> Sumit.
>