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ASF GitHub Bot commented on HADOOP-18246: ----------------------------------------- sauraank opened a new pull request, #5120: URL: https://github.com/apache/hadoop/pull/5120 ### Description of PR Set the lower limit on s3a prefetching/caching block size as 1 byte. Not removed the limit as it would essentially result in infinite number of prefetching/caching request when the block size is 0 byte. ### How was this patch tested? Done the integration test for it on ec2 instance. Not written a separate test as the change was trivial. Please, let me know if any other test is required. ### 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? > Remove lower limit on s3a prefetching/caching block size > -------------------------------------------------------- > > Key: HADOOP-18246 > URL: https://issues.apache.org/jira/browse/HADOOP-18246 > Project: Hadoop Common > Issue Type: Sub-task > Affects Versions: 3.4.0 > Reporter: Daniel Carl Jones > Assignee: Ankit Saurabh > Priority: Minor > Labels: pull-request-available > > The minimum allowed block size currently is {{PREFETCH_BLOCK_DEFAULT_SIZE}} > (8MB). > {code:java} > this.prefetchBlockSize = intOption( > conf, PREFETCH_BLOCK_SIZE_KEY, > PREFETCH_BLOCK_DEFAULT_SIZE, PREFETCH_BLOCK_DEFAULT_SIZE);{code} > [https://github.com/apache/hadoop/blob/3aa03e0eb95bbcb066144706e06509f0e0549196/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java#L487-L488] > Why is this the case and should we lower or remove it? -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org