Steve Loughran created HADOOP-14766: ---------------------------------------
Summary: add an object store high performance hdfs put command Key: HADOOP-14766 URL: https://issues.apache.org/jira/browse/HADOOP-14766 Project: Hadoop Common Issue Type: Sub-task Components: fs, fs/s3 Affects Versions: 2.8.1 Reporter: Steve Loughran {{hdfs put local s3a://path}} is suboptimal as it treewalks down down the source tree then, sequentially, copies up the file through copying the file (opened as a stream) contents to a buffer, writes that to the dest file, repeats. For S3A that hurts because * it;s doing the upload inefficiently: the file can be uploaded just by handling the pathname to the AWS xter manager * it is doing it sequentially, when some parallelised upload would work. * as the ordering of the files to upload is a recursive treewalk, it doesn't spread the upload across multiple shards. Better: * build the list of files to upload * upload in parallel, picking entries from the list at random and spreading across a pool of uploaders * upload straight from local file (copyFromLocalFile() * track IO load (files created/second) to estimate risk of throttling. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: common-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-dev-h...@hadoop.apache.org