Nicolas Liochon created HBASE-13099:
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Summary: Scans as in DynamoDB
Key: HBASE-13099
URL: https://issues.apache.org/jira/browse/HBASE-13099
Project: HBase
Issue Type: Brainstorming
Components: Client, regionserver
Reporter: Nicolas Liochon
cc: [[email protected]] - as discussed offline.
DynamoDB has a very simple way to manage scans server side:
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The data returned from a Query or Scan operation is limited to 1 MB; this means
that if you scan a table that has more than 1 MB of data, you'll need to
perform another Scan operation to continue to the next 1 MB of data in the
table.
If you query or scan for specific attributes that match values that amount to
more than 1 MB of data, you'll need to perform another Query or Scan request
for the next 1 MB of data. To do this, take the LastEvaluatedKey value from the
previous request, and use that value as the ExclusiveStartKey in the next
request. This will let you progressively query or scan for new data in 1 MB
increments.
When the entire result set from a Query or Scan has been processed, the
LastEvaluatedKey is null. This indicates that the result set is complete (i.e.
the operation processed the “last page” of data).
??citation??
This means that there is no state server side: the work is done client side.
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