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commit c47f323765b1abb5196b16d0224b5baa0940bc7e
Author: atharvai <[email protected]>
AuthorDate: Thu Jul 21 11:11:09 2022 +0100

    update dynamodb lockk provider docs to include iam and additional 
dependencies
---
 website/docs/concurrency_control.md | 33 +++++++++++++++++++++++++++++++++
 website/docs/configurations.md      |  2 +-
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/website/docs/concurrency_control.md 
b/website/docs/concurrency_control.md
index e71cb4a8f2..689b7632f7 100644
--- a/website/docs/concurrency_control.md
+++ b/website/docs/concurrency_control.md
@@ -78,7 +78,10 @@ 
hoodie.write.lock.provider=org.apache.hudi.aws.transaction.lock.DynamoDBBasedLoc
 hoodie.write.lock.dynamodb.table
 hoodie.write.lock.dynamodb.partition_key
 hoodie.write.lock.dynamodb.region
+hoodie.write.lock.dynamodb.endpoint_url
+hoodie.write.lock.dynamodb.billing_mode
 ```
+
 Also, to set up the credentials for accessing AWS resources, customers can 
pass the following props to Hudi jobs:
 ```
 hoodie.aws.access.key
@@ -87,6 +90,36 @@ hoodie.aws.session.token
 ```
 If not configured, Hudi falls back to use 
[DefaultAWSCredentialsProviderChain](https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/auth/DefaultAWSCredentialsProviderChain.html).
 
+
+IAM policy for your service instance will need to add the following 
permissions:
+
+```json
+{
+  "Sid":"DynamoDBLocksTable",
+  "Effect": "Allow",
+  "Action": [
+    "dynamodb:CreateTable",
+    "dynamodb:DeleteItem",
+    "dynamodb:DescribeTable",
+    "dynamodb:GetItem",
+    "dynamodb:PutItem",
+    "dynamodb:Scan",
+    "dynamodb:UpdateItem"
+  ],
+  "Resource": 
"arn:${Partition}:dynamodb:${Region}:${Account}:table/${TableName}"
+}
+```
+- `TableName` : same as `hoodie.write.lock.dynamodb.partition_key`
+- `Region`: same as `hoodie.write.lock.dynamodb.region`
+
+AWS SDK dependencies are not bundled with Hudi from v0.10.x and will need to 
be added to your classpath. 
+Add the following Maven packages (check the latest versions at time of 
install):
+```
+com.amazonaws:dynamodb-lock-client
+com.amazonaws:aws-java-sdk-dynamodb
+com.amazonaws:aws-java-sdk-core
+```
+
 ## Datasource Writer
 
 The `hudi-spark` module offers the DataSource API to write (and read) a Spark 
DataFrame into a Hudi table.
diff --git a/website/docs/configurations.md b/website/docs/configurations.md
index b92e40f06c..6dcb76179b 100644
--- a/website/docs/configurations.md
+++ b/website/docs/configurations.md
@@ -1696,7 +1696,7 @@ Configs that control DynamoDB based locking mechanisms 
required for concurrency
 
 `Config Class`: org.apache.hudi.config.DynamoDbBasedLockConfig<br></br>
 > #### hoodie.write.lock.dynamodb.billing_mode
-> For DynamoDB based lock provider, by default it is PAY_PER_REQUEST 
mode<br></br>
+> For DynamoDB based lock provider, by default it is PAY_PER_REQUEST mode. 
Alternative is PROVISIONED<br></br>
 > **Default Value**: PAY_PER_REQUEST (Optional)<br></br>
 > `Config Param: DYNAMODB_LOCK_BILLING_MODE`<br></br>
 > `Since Version: 0.10.0`<br></br>

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