Running titan on MapR M7 Tables

[Preeth]

Hi,

Has anybody got Titan to work with MapR M7 tables instead of HBase?

Thanks,

Preeth

[James Thornton]

Hi Preeth -

MapR M7 HBase is indeed an interesting development -- I am in the process of deploying it on a project and will look at running Titan on it after the base system is in place.

For the curious, MapR recently released an enterprise-grade HBase that fixes almost all of the issues and complexities of running HBase:

* No more RegionServers

* Added High Availability via replication and instant recovery so no more single points of failure

* Simplified architecture that automates region splits and self-tuning

* Avoids garbage collection 

* Snapshots for point-in-time recovery without downtime

* Mirroring to automatically replicate differential data across clusters in real-time to multiple datacenters

* Share cluster with multiple jobs

* Replaced HDFS with MapR FS, which enables you to mount the cluster like a normal NFS volume

See http://www.mapr.com/products/mapr-editions/m7-edition

Also, both Amazon and Google are offering hosted versions MapR M7 Hadoop and HBase with pay-as-you-go-plans (no upfront fees), and MapR is providing a $1000 credit on Google:

* http://www.mapr.com/products/mapr-hadoop-in-the-cloud

* http://www.mapr.com/products/amazon-emr

* http://www.mapr.com/products/google-cloud-platform

- James 

[Kunal Khatua]

Hi Preeth

MapR is in the process of certifying Titan’s compatibility with its enterprise-grade HBase – M7. 

 

As James rightly pointed out, a lot of the complexities of running HBase have been eliminated in M7. As an example, when inserting a large number of vertices into Titan (running on native HBase) has shown that the cluster often freezes up for short durations due to compaction storms. Since M7 architecture is designed to avoid major compactions, the cluster remains consistently responsive.

Kunal 

[James Thornton]

Hi Kunai -

Are M7 Table coprocessors on the horizon?

- James

[Kunal Khatua]

Hi James

From what I can recall in the code, I don't think Titan is making use of co-processors. Is it part of some specific usecase/API in Titan?

Kunal

[James Thornton]

Hi Kunai -

You are correct -- Titan isn't making use of them now -- I am just curious if co-processors are in the works. The Cassandra adapter has seen more attention than HBase, but since M7 addresses many of the issues, it will be interesting to see what's possible once your certification process completes.

- James

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