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 the dax in-memory cache. To work around this problem when I have already large amounts of data written like this, How would I sync it to my DAX Cluster without a client querying it?
So, I thought of doing a throttled table scan connected to my dax endpoint.
This is only returning in-cache objects only. No updates/insertions are being reflected via the table scan through the dax.
Any help?
amazon-web-services amazon-dynamodb amazon-dynamodb-dax
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
add a comment |
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 the dax in-memory cache. To work around this problem when I have already large amounts of data written like this, How would I sync it to my DAX Cluster without a client querying it?
So, I thought of doing a throttled table scan connected to my dax endpoint.
This is only returning in-cache objects only. No updates/insertions are being reflected via the table scan through the dax.
Any help?
amazon-web-services amazon-dynamodb amazon-dynamodb-dax
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
add a comment |
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 the dax in-memory cache. To work around this problem when I have already large amounts of data written like this, How would I sync it to my DAX Cluster without a client querying it?
So, I thought of doing a throttled table scan connected to my dax endpoint.
This is only returning in-cache objects only. No updates/insertions are being reflected via the table scan through the dax.
Any help?
amazon-web-services amazon-dynamodb amazon-dynamodb-dax
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
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 the dax in-memory cache. To work around this problem when I have already large amounts of data written like this, How would I sync it to my DAX Cluster without a client querying it?
So, I thought of doing a throttled table scan connected to my dax endpoint.
This is only returning in-cache objects only. No updates/insertions are being reflected via the table scan through the dax.
Any help?
amazon-web-services amazon-dynamodb amazon-dynamodb-dax
amazon-web-services amazon-dynamodb amazon-dynamodb-dax
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
asked Nov 13 '18 at 6:49
Siddarth SreeniSiddarth Sreeni
338112
338112
add a comment |
add a comment |
1 Answer
1
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oldest
votes
What is your TTL configured for Query Cache?
The reason why you might be seeing this behavior is that the table scan is getting a cache hit, hence DAX wouldn't contact DynamoDB. Consequently, you would get old data. This data would be stale till the time of your TTL for Query Cache and then subsequent query would get new data.
To read more about Item cache and Query cache, you can visit DAX's official page: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.concepts.html#DAX.concepts.query-cache
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
TTL for QueryCache is less than a minute. And I try to do a scan and it still returns me whatever is in the dax only. Meaning. DAX isnt getting updated on SCANs
– Siddarth Sreeni
Nov 19 '18 at 7:05
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
What is your TTL configured for Query Cache?
The reason why you might be seeing this behavior is that the table scan is getting a cache hit, hence DAX wouldn't contact DynamoDB. Consequently, you would get old data. This data would be stale till the time of your TTL for Query Cache and then subsequent query would get new data.
To read more about Item cache and Query cache, you can visit DAX's official page: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.concepts.html#DAX.concepts.query-cache
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
TTL for QueryCache is less than a minute. And I try to do a scan and it still returns me whatever is in the dax only. Meaning. DAX isnt getting updated on SCANs
– Siddarth Sreeni
Nov 19 '18 at 7:05
add a comment |
What is your TTL configured for Query Cache?
The reason why you might be seeing this behavior is that the table scan is getting a cache hit, hence DAX wouldn't contact DynamoDB. Consequently, you would get old data. This data would be stale till the time of your TTL for Query Cache and then subsequent query would get new data.
To read more about Item cache and Query cache, you can visit DAX's official page: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.concepts.html#DAX.concepts.query-cache
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
TTL for QueryCache is less than a minute. And I try to do a scan and it still returns me whatever is in the dax only. Meaning. DAX isnt getting updated on SCANs
– Siddarth Sreeni
Nov 19 '18 at 7:05
add a comment |
What is your TTL configured for Query Cache?
The reason why you might be seeing this behavior is that the table scan is getting a cache hit, hence DAX wouldn't contact DynamoDB. Consequently, you would get old data. This data would be stale till the time of your TTL for Query Cache and then subsequent query would get new data.
To read more about Item cache and Query cache, you can visit DAX's official page: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.concepts.html#DAX.concepts.query-cache
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
What is your TTL configured for Query Cache?
The reason why you might be seeing this behavior is that the table scan is getting a cache hit, hence DAX wouldn't contact DynamoDB. Consequently, you would get old data. This data would be stale till the time of your TTL for Query Cache and then subsequent query would get new data.
To read more about Item cache and Query cache, you can visit DAX's official page: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DAX.concepts.html#DAX.concepts.query-cache
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
answered Nov 16 '18 at 0:51
Dishant KapadiyaDishant Kapadiya
419410
419410
TTL for QueryCache is less than a minute. And I try to do a scan and it still returns me whatever is in the dax only. Meaning. DAX isnt getting updated on SCANs
– Siddarth Sreeni
Nov 19 '18 at 7:05
add a comment |
TTL for QueryCache is less than a minute. And I try to do a scan and it still returns me whatever is in the dax only. Meaning. DAX isnt getting updated on SCANs
– Siddarth Sreeni
Nov 19 '18 at 7:05
TTL for QueryCache is less than a minute. And I try to do a scan and it still returns me whatever is in the dax only. Meaning. DAX isnt getting updated on SCANs
– Siddarth Sreeni
Nov 19 '18 at 7:05
TTL for QueryCache is less than a minute. And I try to do a scan and it still returns me whatever is in the dax only. Meaning. DAX isnt getting updated on SCANs
– Siddarth Sreeni
Nov 19 '18 at 7:05
add a comment |
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