Does that mean that the writes are no longer cached? Vishnu Viswanath
> On 24-Mar-2014, at 15:56, Azuryy Yu <azury...@gmail.com> wrote: > > Thanks, I think this was deperecated. I'll file a JIRA for this. > > >> On Mon, Mar 24, 2014 at 5:46 PM, 张建伟 <connerlyzh...@gmail.com> wrote: >> http://hadoop.apache.org/docs/r1.2.1/hdfs_design.html >> >> >> Staging >> >> A client request to create a file does not reach the NameNode immediately. >> In fact, initially the HDFS client caches the file data into a temporary >> local file. Application writes are transparently redirected to this >> temporary local file. >> >> >> >> >> >> 2014-03-24 17:01 GMT+08:00 Azuryy Yu <azury...@gmail.com>: >> >>> Can you give the URL where you looked at? >>> >>> >>>> On Mon, Mar 24, 2014 at 4:49 PM, 张建伟 <connerlyzh...@gmail.com> wrote: >>>> hi, >>>> >>>> In the apache site,I find a document said : >>>> >>>> "A client request to create a file does not reach the NameNode >>>> immediately. In fact, initially the HDFS client caches the file data into >>>> a temporary local file. Application writes are transparently redirected to >>>> this temporary local file. When the local file accumulates data worth over >>>> one HDFS block size, the client contacts the NameNode. " >>>> >>>> does it still right in 2.2.0 and 1.2.1 version? why write a file like this? >
