How to Protect SCI Database?

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  • Updated 2 months ago
Hi all,
Is there any redundancy mechanism or HA mechanism supported by SCI. Since it contains sensitive data what can we adhere to as a safety mehanism to protect VM and it DB.

Thanks
Pamuditha
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gpmpa

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Posted 2 months ago

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Lakshmi Nagarajan

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Hi Pamuditha, SCI uses HDFS to store data, and  supports the default HDFS 3-factor replication for data redundancy. Which means, if you 3 or more data nodes, SCI will store 3 copies of the data, so that if one of the data nodes goes down, there are still 2 copies of your data, and no data is lost.

As for the safety mechanism to protect the VM and the DB, please ensure that the VM is behind a firewall in a protected network , and only the ports specified in the installation guide are opened.

Thanks
Lakshmi
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gpmpa

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Hi, 
What if we are using a master node and a single data node.? 

Regards, 
Pamuditha
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Lakshmi Nagarajan

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Hi Pamuditha, If you have a master node and a single data node, it is ok. 2 copies of the data will be stored instead of 3, that's all. 

Thanks
Lakshmi
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gpmpa

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Hi Lakshmi, 
Thanks for the response. In case of SCI master node fails, connectivity failure, can SCI data node be accessed to query data? Or can vSZ communicate with SCI data node? 
Is there any hearbeat mechanism available between two nodes? 

Thanks
Pamuditha
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Lakshmi Nagarajan

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Hi Pamuditha,

The data node cannot be accessed directly to query data. The SZ cannot communicate with the SCI data node directly either.

The master node always knows the datanodes connected to it. The datanode also knows the master node it is connected to, so if it goes down and comes back up, it will try to reattach itself to the master node.

Hope this answers the questions.

Thanks
Lakshmi