Never mind guys. I had a typo when I was trying to set configuration param. Sorry.
On Tue, Aug 6, 2013 at 4:46 PM, jamal sasha <jamalsha...@gmail.com> wrote: > Hi, > I am trying to pass a parameter to multiple mappers > > So, I do this in my driver > > conf.set("delimiter", args[3]); > > In mapper1, I am retreiving this as: > > Configuration conf = context.getConfiguration(); > String[] values = value.toString().split(conf.get("delimiter")); > > and same is my mapper2 > > > But I get this error: > 13/08/06 16:38:09 INFO mapred.JobClient: Task Id : > attempt_201306191416_1384_m_000001_0, Status : FAILED > java.lang.NullPointerException > at java.util.regex.Pattern.<init>(Pattern.java:1149) > at java.util.regex.Pattern.compile(Pattern.java:840) > at java.lang.String.split(String.java:2304) > at java.lang.String.split(String.java:2346) > at DataSourceOneMapper.map(DataSourceOneMapper.java:22) > at .DataSourceOneMapper.map(DataSourceOneMapper.java:1) > > > And the line 22 corresponds to this conf.get("...") line > > What am i doing wrong? > Also, just to add, in this particular case delimiter is "@" > > So, if i do > > String[] values = value.toString().split("@"); > > everything works fine?? > How do i resolve this? > Thanks > > >