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Lohit Vijayarenu updated HDFS-5499: ----------------------------------- Attachment: HDFS-5499.1.patch We have been thinking something along this line in the patch, which can throttle HDFS read/write and Hftp reads. Posting here for any inputs from people who might have thought about this use case and what they think about this. > Provide way to throttle per FileSystem read/write bandwidth > ----------------------------------------------------------- > > Key: HDFS-5499 > URL: https://issues.apache.org/jira/browse/HDFS-5499 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Lohit Vijayarenu > Attachments: HDFS-5499.1.patch > > > In some cases it might be worth to throttle read/writer bandwidth on per JVM > basis so that clients do not spawn too many thread and start data movement > causing other JVMs to starve. Ability to throttle read/write bandwidth on per > FileSystem would help avoid such issues. > Challenge seems to be how well this can be fit into FileSystem code. If one > enables throttling around FileSystem APIs, then any hidden data transfer > within cluster using them might also be affected. Eg. copying job jar during > job submission, localizing resources for distributed cache and such. -- This message was sent by Atlassian JIRA (v6.1#6144)