Hi dear community!
i'll very appreciate if someone could tell how match number of pipelines with number of the blocks in the file?
i mean pipelines that are creating for writhig HDFS block (https://issues.apache.org/jira/secure/attachment/12445209/appendDesign3.pdf)
is number of pipelines equal of number of blocks in required file? In other words one pipeline created for one file block, right? Or one pipeline per file (multiple blocks)?
thanks for your reply!
let me clarify my question:
does each file block has unique set of the Datanodes?
or all blocks writes in single set of datanodes?