Nov 13, 2017 · We started a 3-node cluster and tuned DynamoDB up to 8,000 write capacity while leaving the hive query un-tuned. We ran the query and it took 315 seconds. However, with 8,000 write capacity and 3 records per write we expected it to take only seconds.
Jan 30, 2012 · DynamoDB is a NoSQL database hosted by Amazon and intended to give Amazon the burden of scaling your data until it goes to 11 (or 11,000,000). I’ve seen a number of posts describing how DynamoDB works, but not really much about what it is. DynamoDB is (mostly) an enhanced key-value store with a few features that bring it beyond a simple KVS.
Jan 25, 2018 · I'm trying to query a dynamodb table with a given partition key and a range for the sort key but the API keeps throwing back the following error: Amazon.DynamoDBv2.AmazonDynamoDBException KeyConditionExpressions must only contain one condition per key Here is the C# code for creating the request: var partitionKey = 10; var from = DateTime.NowUtc.AddDays(-1); var…
On delete request, we query the metastore table, which is DynamoDB, and generate a purge report that contains details on what storage layers contain user records, and storage layer specifics that can speed up locating the records.
Find replies to a forum thread posted in a specific date range. Scan the ProductCatalog table to find books whose price is less than a specified value. For performance reasons, you should use the query operation instead of the scan operation.
#AWS #Database アプリのイベント履歴管理 パーティションキー: User ID ソートキー: Time Stamp table:table User TimeStamp Opponent Result Alice 2014-07-11 12:21:20 Bob Lost Alice 2014-07-11 12:42:20 Bob Won Alice 2014-07-14 09:48:
DynamoDB query can return of maximum of 1 MB results. You can retrieve the additional records with pagination by specifying the last read item from the previous one (LastEvaluatedKey property). You can also set a limit on how many records you want to retrieve (Limit property). DynamoDB has supported transactions since late 2018.