steveloughran opened a new pull request, #6460: URL: https://github.com/apache/hadoop/pull/6460
This is actually trickier than it seems as we will need to go deep into the implementation of caching. Specifically: the prefetcher knows the file length and if you open a file shorter than that, but less than one block, the read is considered a failure and the whole block is skipped, so read() of the nominally in-range data returns -1. This fix has to be considered a PoC and should be combined with the other big PR for prefetching, #5832 as that is where changes should go. Here is just test tuning and some differentiation of channel problems from other EOFs. ### How was this patch tested? ``` mvn verify -Dtest=none -Dit.test=ITestS3AOpenCost -Dprefetch ``` ### For code changes: - [X] 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? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org
