[ https://issues.apache.org/jira/browse/HDFS-8150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
J.Andreina updated HDFS-8150: ----------------------------- Status: Patch Available (was: Open) > Make getFileChecksum fail for blocks under construction > ------------------------------------------------------- > > Key: HDFS-8150 > URL: https://issues.apache.org/jira/browse/HDFS-8150 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Kihwal Lee > Assignee: J.Andreina > Priority: Critical > Attachments: HDFS-8150.1.patch > > > We have seen the cases of validating data copy using checksum then the > content of target changing. It turns out the target wasn't closed > successfully, so it was still under-construction. One hour later, a lease > recovery kicked in and truncated the block. > Although this can be prevented in many ways, if there is no valid use case > for getting file checksum from under-construction blocks, can it be disabled? > E.g. Datanode can throw an exception if the replica is not in the finalized > state. -- This message was sent by Atlassian JIRA (v6.3.4#6332)