I have tried Apache Oozie 3.2.0 for hdfs trigger. BUT oozie coordinator only support triggers combined time and data :
actually it scans hdfs periodcally , and check existence of "done-flag". 2012/7/26 Dave Beech <dbe...@apache.org> > Apache Oozie ( the workflow / coordination tool for Hadoop) has a feature > similar to this. > > Take a look at > > http://incubator.apache.org/oozie/docs/3.2.0-incubating/docs/CoordinatorFunctionalSpec.html- > there are triggers which allow you to perform actions when new data > appears on the filesystem in a specified location. > > On 26 July 2012 03:08, Sandeep Reddy P <sandeepreddy.3...@gmail.com> > wrote: > > > Hi, > > Is it possible to implement triggers or listeners or observers in hadoop > > filesystem. Some change in hadoop filesystem notify to client > > application???-- > > > > Thanks, > > sandeep > > >
