CODEWITHSUNDEEP
azure-storageazure-blob-storageazure-hdinsight
Dhiraj
Dhiraj

Reputation: 3696

What is default storage account in HDInsight

For a given HDInsight cluster I have seen that there is a 'Default Storage Account' and 'Linked Storage Account'. What does it mean? What's special for some account to be a default storage account for a given HDInsight cluster? How is this different than any arbitrary storage account with respect to that cluster. Probably that whenever we try to access that storage account from that cluster it wont ask for keys?

And how is that different from 'Linked Storage Account' for a given HDInsight cluster? I have seen that there is generally one default storage account for a HDInsight cluster but several Linked storage accounts.

Upvotes: 2

Views: 908

Answers (1)

Jonathan Gao
Jonathan Gao

Reputation: 679

Default storage account is like system drive. Log files are stored in the default storage account. Each cluster must have a default storage account. It is not supported to share a default storage account between two clusters. They are also some issues with reusing a default storage account for many times.

You can have many linked storage accounts. People usually store business data in linked storage accounts. In the past, you can only link a storage account during the cluster creation time. Now, you can use Ambari to add linked storage accounts to a live Linux-based cluster.

see https://azure.microsoft.com/en-us/documentation/articles/hdinsight-hadoop-use-blob-storage/

Upvotes: 1

Related Questions