Btw this logic was added in https://issues.apache.org/jira/browse/HBASE-11575 . This is to force RS to use other ports due to master-RS colocation and yes we still need another instance of RS (apart from the one that is colocated with HMaster).
On Mon, Dec 1, 2014 at 12:40 PM, Bharath Vissapragada <[email protected] > wrote: > I managed fix this issue on my machine. If you notice the startup script > of *local* regionservers (bin/local-regionservers.sh). > > run_regionserver () { > > DN=$2 > > export HBASE_IDENT_STRING="$USER-$DN" > > HBASE_REGIONSERVER_ARGS="\ > > -D hbase.regionserver.port=`expr 16200 + $DN` \ > > -D hbase.regionserver.info.port=`expr 16300 + $DN`" > > "$bin"/hbase-daemon.sh --config "${HBASE_CONF_DIR}" $1 regionserver > $HBASE_REGIONSERVER_ARGS > > } > > > We put hbase.regionserver.port = 16200 + num (1 for localhost) and we > call this script as follows > > > regionservers=`cat "$HOSTLIST"` > > if [ "$regionservers" = "localhost" ]; then <-- This line > > "$bin"/local-regionservers.sh start 1 > > So bottomline is you *must* have "localhost" in conf/regionservers (no > hostnames or FQDN) and as per HBASE-12263 your "hostname -f" *should not* > resolve to a localhost. Otherwise you see something like > > 2014-11-30 12:33:23,230 FATAL [main] regionserver.RSRpcServices: The > hostname of regionserver cannot be set to localhost in a fully-distributed > setup because it won't be reachable. See "Getting Started" for more > information. > > 2014-11-30 12:33:23,231 ERROR [main] > regionserver.HRegionServerCommandLine: Region server exiting > > Set it using DNS or hack the /etc/hosts file. > > Thanks, > Bharath > > > > On Mon, Dec 1, 2014 at 11:30 AM, guxiaobo1982 <[email protected]> wrote: > >> My environment is CENTOS 6.5 64 bit with Oracle JDK 1.7.0 >> >> >> >> >> ------------------ Original ------------------ >> From: "Bharath Vissapragada";<[email protected]>; >> Send time: Sunday, Nov 30, 2014 11:58 PM >> To: "hbase-user"<[email protected]>; >> >> Subject: Re: port confilct with hadoop 2.5.2 and hbase 0.99.1 >> >> >> >> I'm not totally sure whats happening here. I'm able to reproduce this >> issue >> on my Mac but the same thing when run on a linux host works fine. >> Strangely >> in the linux host, it picks another port to run the RSRpcServices. >> >> 2014-11-30 04:39:16,267 INFO [main] regionserver.RSRpcServices: >> regionserver/host-10-16-8-145.openstacklocal/10.16.8.145:16201 >> server-side >> HConnection retries=350 >> >> The only difference between these two setups is that the linux host has a >> proper DNS and in the Mac I did some hacks to the /etc/hosts. Both setups >> use 0.99.1+2.5.2. >> >> On Sun, Nov 30, 2014 at 6:30 AM, 顾小波 <[email protected]> wrote: >> >> > But Bharath said the new master embeds an internal region server, is an >> > external region server still needed on pseudo distribution mode? >> > >> > 发自我的 iPad >> > >> > > 在 2014年11月29日，下午10:45，Ted Yu <[email protected]> 写道： >> > > >> > > Bharath >> > >> > >> > >> >> >> -- >> Bharath Vissapragada >> <http://www.cloudera.com> > > > > > -- > Bharath Vissapragada > <http://www.cloudera.com> > -- Bharath Vissapragada <http://www.cloudera.com>
