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https://issues.apache.org/jira/browse/HDDS-1530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiaoyu Yao updated HDDS-1530:
-----------------------------
Resolution: Fixed
Fix Version/s: 0.4.1
Target Version/s: 0.4.1 (was: 0.5.0)
Status: Resolved (was: Patch Available)
Thanks [~xudongcao] for the contribution and all for the reviews. I've commit
the patch to trunk.
> Ozone: Freon: Support big files larger than 2GB and add "--bufferSize" and
> "--validateWrites" options.
> ------------------------------------------------------------------------------------------------------
>
> Key: HDDS-1530
> URL: https://issues.apache.org/jira/browse/HDDS-1530
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: test
> Reporter: Xudong Cao
> Assignee: Xudong Cao
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.4.1
>
> Time Spent: 5h 50m
> Remaining Estimate: 0h
>
> *Current problems:*
> 1. Freon does not support big files larger than 2GB because it use an int
> type "keySize" parameter and also "keyValue" buffer size.
> 2. Freon allocates a entire buffer for each key at once, so if the key size
> is large and the concurrency is high, freon will report OOM exception
> frequently.
> 3. Freon lacks option such as "--validateWrites", thus users cannot manually
> specify that verification is required after writing.
> *Some solutions:*
> 1. Use a long type "keySize" parameter, make sure freon can support big
> files larger than 2GB.
> 2. Use a small buffer repeatedly than allocating the entire key-size buffer
> at once, the default buffer size is 4K and can be configured by "–bufferSize"
> parameter.
> 3. Add a "--validateWrites" option to Freon command line, users can provide
> this option to indicate that a validation is required after write.
>
>
>
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