steveloughran opened a new pull request, #6938:
URL: https://github.com/apache/hadoop/pull/6938
Adds custom set of content providers in UploadContentProviders which
* restart on failures
* do not copy buffers/byte buffers into new private byte arrays, so avoid
exacerbating memory problems.
org.apache.hadoop.fs.store.ByteBufferInputStream has been pulled out of
org.apache.hadoop.fs.store.DataBlocks to assist.
CommitOperations has been wired up for this; S3ABlockOutputStream will
follow.
TODO
* Maybe collect statistics on restarts
* Improve handling of interrupted exceptions raised while waiting for block
uploads to complete when spark wants to abort a speculative task.
Change-Id: I8c5f73978e542147de76462206da5df1494b4912
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### Description of PR
### How was this patch tested?
Needs new tests. I cannot think of a realistic way to inject failure
conditions
into the SDK other than having a fault injecting HttpClient implementation
and
that would be complicated.
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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