Hum. I don't know why I was not able to find it before. Sorry about that. Have you tried to directly call reverseDns from a small java class on your server to see what is returned?
2013/11/15 Sudarshan Kadambi (BLOOMBERG/ 731 LEXIN) <[email protected]> > Asaf: > > What doesn't work is that the RegionServers bind to the IP that the > hostname maps to in /etc/hosts and not to the specified interface. > > I've this in hbase-site.xml: > </property> > <property> > <name>hbase.master.dns.interface</name> > <value>eth0</value> > </property> > </property> > <property> > <name>hbase.regionserver.dns.interface</name> > <value>eth0</value> > </property> > > This however has no effect. I'm on HBase 0.94.6. > > I see: > // Server to handle client requests. > String hostname = conf.get("hbase.regionserver.ipc.address", > Strings.domainNamePointerToHostName(DNS.getDefaultHost( > conf.get("hbase.regionserver.dns.interface", "default"), > conf.get("hbase.regionserver.dns.nameserver", "default")))); > int port = conf.getInt(HConstants.REGIONSERVER_PORT, > HConstants.DEFAULT_REGIONSERVER_PORT); > // Creation of a HSA will force a resolve. > InetSocketAddress initialIsa = new InetSocketAddress(hostname, port); > if (initialIsa.getAddress() == null) { > throw new IllegalArgumentException("Failed resolve of " + > initialIsa); > } > > So this setting is in the code (that JIRA should be resolved; it's > confusing). Reverse DNS lookups don't work yet on my cluster. Could this be > the reason? I traced this down to a call to getHosts() which does a > reverseDns lookup. And since that doesn't work it falls back to the default? > > ----- Original Message ----- > From: [email protected] > To: Sudarshan Kadambi (BLOOMBERG/ 731 LEXIN), [email protected] > At: Nov 15 2013 00:07:50 > > We are using both of the following properties: > hbase.regionserver.dns.interface, base.master.dns.interface. Both set to > the interface name we want. We have two interfaces as you described - one > for inner communication and one for external. > > What exactly is not working for you? > > > On Wed, Nov 13, 2013 at 8:02 PM, Sudarshan Kadambi (BLOOMBERG/ 731 LEXIN) < > [email protected]> wrote: > > Hi Guys: > > I've HBase running on a machine with multiple interfaces (for in-bound and > inter-cluster traffic). I can't get HBase to listen on the interface I want > it to by setting hbase.regionserver.dns.interface. Does this setting work? > What is its purpose? > > After reading an old thread on the user list, I wasn't sure: > http://comments.gmane.org/gmane.comp.java.hadoop.hbase.user/10150 > > That thread led me to this unresolved JIRA: > https://issues.apache.org/jira/browse/HBASE-2502 > > -sudarshan > > >
