Ezmeral Binary DB Access & Operation

[Prativa]

Is there anywhere documentation available to understand REST API's support for Binary DB operations? Create table with REST API is possible but did not find clear documentation about other operations (similar to operations supported for JSON DB).

Also the Data Access Gateway (DAG) - is it possible for the external clients to gain access to binary DB data via DAG? Again clear documentation available for JSON db but not much clarity on binary DB.

[support_s]

System recommended content:

1. HPE Ezmeral Data Fabric – Customer-Managed 7.5.0 Documentation | Using the HPE Ezmeral Data Fabric Database JSON REST API

2. HPE Ezmeral Data Fabric – Customer-Managed 7.4.0 Documentation | Using the HPE Ezmeral Data Fabric Database JSON REST API

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[hiteshingole]

To access the the marpdb table via Rest api mapr-hbase-rest rpm needs to be installed.

Refer to below link for more details 

https://docs.ezmeral.hpe.com/datafabric-customer-managed/74/HBase/HBase.html

Once the package is installed you can make rest api call on this gateway to access the tables.

Refer to below link for more details.
https://hbase.apache.org/book.html#_rest

Example

[mapr@node3 ~]$ curl -X GET -s  -H "Accept: text/xml"  -ku mapr:maprwins@123 "https://localhost:8080/%2Fhbase%2Ft1/schema"

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><TableSchema name="/hbase/t1" IS_META="false" AUTOSPLIT="true" MAX_FILESIZE="4294967296" IS_ROOT="false" MAX_VALUE_SIZE_IN_MEM="100" MAPR_UUID="acf6c0d8-871d-a815-0e95-092811ea6600"><ColumnSchema name="fam0" BLOOMFILTER="ROW" VERSIONS="1" IN_MEMORY="false" KEEP_DELETED_CELLS="FALSE" DATA_BLOCK_ENCODING="NONE" TTL="2147483647" COMPRESSION="NONE" MIN_VERSIONS="0" BLOCKCACHE="true" BLOCKSIZE="8192" REPLICATION_SCOPE="0" compression_raw="31"/></TableSchema>

[mapr@node3 ~]$

Note:- The curl command has escape the '/' with %2F

[Prativa]

Thanks @hiteshingole for the quick response. In order to support HA and managing external client access, I am assuming HBASE Rest Gateway can be installed on multiple nodes and LB can be put in the front to manage the routing. Is this right?

[hiteshingole]

The HBase REST server can be installed on multiple nodes with active-active behavior. Yes, you can have a load balancer in front to distribute the incoming requests to the HBase REST servers.

[support_s]

Hello,

Let us know if you were able to resolve the issue.

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