There is no firewall.
On Wed, Jan 8, 2014 at 9:58 PM, Vinod Kumar Vavilapalli < [email protected]> wrote: > Checked the firewall rules? > > +Vinod > > On Jan 8, 2014, at 3:22 AM, Saeed Adel Mehraban <[email protected]> > wrote: > > Hi all. > I have an installation on Hadoop on 3 nodes, namely master, slave1 and > slave2. When I try to run a job, assuming appmaster be on slave1, every map > and reduce tasks which take place on slave2 will fail due to > ConnectException. > I checked the port which slave2 wants to connect to. It differs randomly > each time, but when I look for it in slave1 logs, I can see this line: > "2014-01-08 02:14:25,206 INFO [Socket Reader #1 for port 38226] > org.apache.hadoop.ipc.Server: Starting Socket Reader #1 for port 38226" > So there is a process on slave1 listening to this port, but slave2 tasks > want to connect to this port on slave2. > > Do you know why is this happening? > > > > CONFIDENTIALITY NOTICE > NOTICE: This message is intended for the use of the individual or entity > to which it is addressed and may contain information that is confidential, > privileged and exempt from disclosure under applicable law. If the reader > of this message is not the intended recipient, you are hereby notified that > any printing, copying, dissemination, distribution, disclosure or > forwarding of this communication is strictly prohibited. If you have > received this communication in error, please contact the sender immediately > and delete it from your system. Thank You.
