[
https://issues.apache.org/jira/browse/HDDS-1496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hanisha Koneru updated HDDS-1496:
---------------------------------
Summary: Support partial chunk reads and checksum verification (was:
readChunkFromContainer() should only read the required part of chunk file)
> Support partial chunk reads and checksum verification
> -----------------------------------------------------
>
> Key: HDDS-1496
> URL: https://issues.apache.org/jira/browse/HDDS-1496
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Hanisha Koneru
> Assignee: Hanisha Koneru
> Priority: Major
>
> BlockInputStream#readChunkFromContainer() reads the whole chunk from disk
> even if we need to read only a part of the chunk.
> This Jira aims to improve readChunkFromContainer so that only that part of
> the chunk file is read which is needed by client plus the part of chunk file
> which is required to verify the checksum.
> For example, lets say the client is reading from index 120 to 450 in the
> chunk. And let's say checksum is stored for every 100 bytes in the chunk i.e.
> the first checksum is for bytes from index 0 to 99, the next for bytes from
> index 100 to 199 and so on. To verify bytes from 120 to 450, we would need to
> read from bytes 100 to 499 so that checksum verification can be done.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
