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Questions tagged [amazon-dynamodb-dax]

Amazon DynamoDB Accelerator (DAX) is a fully managed, highly available, in-memory cache for DynamoDB

Amazon DynamoDB Accelerator (DAX) is a fully managed, highly available, in-memory cache. DAX does all the heavy lifting required to add in-memory acceleration to DynamoDB tables, without requiring developers to manage cache invalidation, data population, or cluster management. DAX is compatible with existing DynamoDB API calls.

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AWS DynamoDB/DAX ValueError: invalid literal for int() with base 10: '//test..dax-clusters..amazonaws.com'

I understand the error but am very unsure why it is happening. with AmazonDaxClient.resource( endpoint_url='daxs://test..dax-clusters..amazonaws.com', region_name='' ) as dynamodb: table…
Kyle
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to make auto count for the 1st higest values using DAX query

In a table I have values Name fruits ---------------- xxx Apple yyy Orange zzz Papaya aaa Pineapple bbb Orange ccc Papaya ddd Papaya fff Apple I need a measure to count the highest repeated value (which is Papaya it…
Sankar
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Best way to cache large data that is added to (DynamoDB)

I am currently working with large amounts of data that I'm storing in DynamoDB. Once data enters the database it never changes, but new data is flowing into the database consistently. My question is how can I perform a data cache (utilizing DAX if…
Marcus
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DyanmoDB DAX Low level API

Is it possible to print the low level api with DAX client? When I'm using the regular DynamoDB Client its working fine but it isn't working when I'm using DAX client. DynamoDB Low level…
David Cohen
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Writing Pyspark in AWS Glue and trying to read and write data using Dynamo DB with DAX clusters

I am able to read and write data into Dynamo DB tables by AWS Glue using Pyspark code through --->dynamodb = boto3.resource('dynamodb', region_name=region, endpoint_url=url) I also want to use DAX clusters for faster execution. Can someone suggest…
Abhishek
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Access Denied Exception in AWS DAX

I have created a DAX cluster and accessing it in a lambda function which runs in the same VPC. It shows the following response: "Unable to get User Details: Error: AccessDeniedException: User:…
Mohammed Marjan
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AWS DAX cluster has zero cache hits and cache miss

I'm using an AWS DAX cluster of 3 nodes of dax.r4.xlarge node type. When I'm running my spark application from EMR cluster, it is always fetching values from dynamodb table. Even if I run the same application on same set of key, it is querying…
Akshay
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How do disable the query-cache in DAX?

How do I disable query cache for AWS Dynamo DAX? The answer at Can we have infinite TTL for DAX item cache mentions setting the ttl to 0 would just make the query results to live ever till eviction.
tick_tack_techie
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Are DynamoDB annotation on model are supported through DAX as well?

I Have one model e.g Person representing table Person. I have used @DynamoDBTable,@DynamoDBRangeKey,@DynamoDBAttribute,@DynamoDBHashKey annotations for various get request from the table. can these annotations be used for DAX as well or DAX supports…
user6223368 iSubodh
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spring boot dynamodb throughput configuration

Our application in production is having frequent outage because it is not able to bear load. Now, the api is login api which is very critical one. inside login api we have 3 rest calls and 8 dynamodb calls (6 read calls and 2 write call - item size…
Rahul Singh
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Dynamo Db Accelerator should reduce the response time to microseconds

i am using aws lamda function and dynamodb and api gateway for my application and making a load test using Apache bench and i had run the test successfully for 1000 request and 100 concurrency and here is the result Test #1 Concurrency Level: …
amr ahmed
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DAX put Item fails with "Cannot convert undefined or null to object"

I was trying to configure DAX for an existing Lambda function that reads and writes data to DynamoDB. Before introducing DAX everything worked ok, after that, the writes stopped working, with no change in what data was being written. On debug, I…
Andy
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DAX With DynamoDB On-Demand

Application: I have a Java app that has spikes/bursts in its input, which represent events. Per event there is always a read, a decision made (logic), and then a possible write (insert or update) based on that decision. The majority of reads do not…
user376327
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Amazon Dax Failed to retrieve endpoints Traceback (most recent call last):

I'm getting the following error with my 3 node DAX Cluster: Failed to retrieve endpoints Traceback (most recent call last): My setup: - Private Lambdas - Python 3.6 - amazon-dax-client - Config settings - timeout 300ms, max retries 5 - vpc has 3…
Peter H
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Aws DynamoDB DAX Scan table

Using rowMapper Configuration and using new ClientConfig() and AmazonDaxClient I'm facing trouble syncing the dax cluster with my table(s). I know that I have to go through a double hop to get back the query results if it had been updated around…
papaya
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