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Posted to issues@hive.apache.org by "Peter Vary (Jira)" <ji...@apache.org> on 2020/05/22 15:13:00 UTC
[jira] [Commented] (HIVE-23533) Remove an FS#exists call from
AcidUtils#getLogicalLength
[ https://issues.apache.org/jira/browse/HIVE-23533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17114137#comment-17114137 ]
Peter Vary commented on HIVE-23533:
-----------------------------------
+1 pending tests
> Remove an FS#exists call from AcidUtils#getLogicalLength
> --------------------------------------------------------
>
> Key: HIVE-23533
> URL: https://issues.apache.org/jira/browse/HIVE-23533
> Project: Hive
> Issue Type: Improvement
> Reporter: Karen Coppage
> Assignee: Karen Coppage
> Priority: Major
> Attachments: HIVE-23533.01.patch
>
>
> {code:java}
> Path lengths = OrcAcidUtils.getSideFile(file.getPath());
> if(!fs.exists(lengths)) {
> ...
> return file.getLen();
> }
> long len = OrcAcidUtils.getLastFlushLength(fs, file.getPath());
> {code}
> OrcAcidUtils.getLastFlushLength also has an exists() check and returns Long.MAX_VALUE if false.
> exists() is expensive on S3.
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