CODEWITHSUNDEEP
azureazure-blob-storageazcopy
AndreySh
AndreySh

Reputation: 11

Azure BLOB storage - many transactions

I have loaded 1844 files to Azure to hot storage. I use AzCopy program from Microsoft. In metrics right now 200 000 transactions. What's going on? Why 200K transactions? I found this request with BUG in Azure. Azure BLOB storage phantom requests

screen from dashboard

my command:

azcopy /Source:LocalPath /Dest:https://mystorage.blob.core.windows.net/img/ /DestKey:AccessKey /S

Upvotes: 1

Views: 1818

Answers (1)

George Chen
George Chen

Reputation: 14324

In this doc :Understanding Windows Azure Storage Billing – Bandwidth, Transactions, and Capacity, you could find something under Uploading Blobs. It says When uploading a blob greater than 32 Mbytes, the storage client library will break it into 4 Mbyte blocks by default. and Each PutBlock will count as 1 transaction, and the final PutBlockList will also count as 1 transaction.

The other thing is from the official doc:Transfer Data with the Microsoft Azure Storage Data Movement Library, you could know the Storage Client Library is the core of AzCopy. So the conclusion is established.

With Storage Client Library, you could change the default block size, however AzCopy doesn't mention it so maybe it's not changeable.

Hope this could help you, if you still have other questions, please let me know.

Upvotes: 1

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