Azure Cosmos DB - Understanding Partition Key

Question

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 1

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 2

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 3

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 4

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 5

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 6

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 7

I'm setting up our first Azure Cosmos DB - I will be importing into the first collection, the data from a table in one of our SQL Server databases. In setting up the collection, I'm having trouble understanding the meaning and the requirements around the partition key, which I specifically have to name while setting up this initial collection.

I've read the documentation here: ( https://docs.microsoft.com/en-us/azure/cosmos-db/documentdb-partition-data ) and still am unsure how to proceed with the naming convention of this partition key.

Can someone help me understand how I should be thinking in naming this partition key? See the screenshot below for the field I'm trying to fill in.

In case it helps, the table I'm importing consists of 7 columns, including a unique primary key, a column of unstructured text, a column of URL's and several other secondary identifiers for that record's URL. Not sure if any of that information has any bearing on how I should name my Partition Key.

EDIT: I've added a screenshot of several records from the table from which I'm importing, per request from @Porschiey.

Answer 8

You are defining a logical partition. Underneath, physically the data is split into physical partitions by Azure.

Ideally a partitionKey should be a primary Key, or a field with high cardinality to ensure proper distribution, with the self generated id field within that partition also set to the primary key, that will help with documentFetchById much faster.

You cannot change a partitionKey once container is created.

Looking at the dataset, captureId is a good candidate for partitionKey, with id set manually to this field, and not an auto generated cosmos one.

Answer 9

There is documentation available from Microsoft about partition keys. According to me you need to check the queries or operations that you plan to perform with cosmos DB. Are they read-heavy or write-heavy? if read heavy it is ideal to choose a partition key in the where clause that will be used in the query, if it is a write heavy operation then look for a key which has high cardinality

Always point reads /writes are better since it consumes way less RU's than running other queries