I got silence from HDFS dev here, so I'm raising it on common dev. Why is HDFS tagging as deprecated " io.bytes.per.checksum ", given its an option being set in core-default, and used by other filesystems?
>INFO Configuration.deprecation >(Configuration.java:warnOnceIfDeprecated(1182)) - io.bytes.per.checksum is >deprecated. Instead, use dfs.bytes-per-checksum I don't see why it should be deprecated. If it isn't what HDFS likes, then the code there could be smarter: look for the dfs value, and if not found then grab the io.bytes one —warning the user. I will volunteer to write this code if I get a promise that someone agrees with the premise and is willing to help nurture it in. Begin forwarded message: From: Steve Loughran <ste...@hortonworks.com<mailto:ste...@hortonworks.com>> Subject: HADOOP-13636 and io.bytes.per.checksum Date: 21 September 2016 at 17:12:00 BST To: "hdfs-dev@hadoop.apache.org<mailto:hdfs-dev@hadoop.apache.org>" <hdfs-dev@hadoop.apache.org<mailto:hdfs-dev@hadoop.apache.org>> I'm getting told off for using the deprecated option: io.bytes.per.checksum https://issues.apache.org/jira/browse/HADOOP-13636 Except: I'm not. FileSystem.getServerDefaults() is, which is used by Trash to work out where to delete things. It strikes me that the system is inconsitent: HdfsConfiguration is deprecating a property that everything else is happy to use; I see it in four places in production, and various tests, plus core-default.xml Is it really deprecated? If so, are there any volunteers to remove it from the codebase, while pulling up the default value into core-default? otherwise: how about the complaint is turned off?
