St.Ack, Thanks a lot When I will be back in office I need to reinstall everything. In this case do I need to reinstall hadoop too. Because my datanode has hbase directory in its listings.
When I say I will move means I will move with my dev laptop. Are you saying hbase is mean to work on static location(i.e. fixed machine name and IP)? -jignes On Fri, Oct 21, 2011 at 6:29 PM, Stack <[email protected]> wrote: > That the servername makes no sense in a particular context has been > fixed in newer versions of hbase. > > Is the data in your dev laptop critical? If not just throw it away > when you move or update. > > HBase has not been optimized to run on fellows' laptops. > > St.Ack > > > On Fri, Oct 21, 2011 at 3:15 PM, Jignesh Patel <[email protected]> > wrote: > > Statck, > > > > I am at home now in my home network I see one change now the machine name > > is unknowne4ce8f3898fc. > > I will fix this by taking help from Mac people. > > > > But tomorrow I might go from x to y place and machine name may be > different > > there.So again Hbase will stop working. > > > > But as per the previous post even after fixing the weird machine name > issue > > hbase is not going to forget this name. So what action I need to take so > > that hbase will take up the correct machine name. > > -Jignesh > > > > On Fri, Oct 21, 2011 at 4:36 PM, Stack <[email protected]> wrote: > > > >> Try making it resolve temporarily by adding it to your /etc/hosts. > >> St.Ack > >> > >> On Fri, Oct 21, 2011 at 12:54 PM, Jignesh Patel < > [email protected]> > >> wrote: > >> > When I start the hbase first time I always see following error. > >> > > >> > ERROR: java.lang.reflect.UndeclaredThrowableException: Call to > >> > 192.168.1.120/192.168.1.120:49188 failed on local exception: > >> > java.io.EOFException > >> > > >> > but my log file shows > >> > > >> > 2011-10-21 15:45:21,772 ERROR org.apache.hadoop.hbase.HServerAddress: > >> Could > >> > not resolve the DNS name of unknowne4ce8f3898fc > >> > 2011-10-21 15:45:21,773 FATAL org.apache.hadoop.hbase.master.HMaster: > >> > Unhandled exception. Starting shutdown. > >> > java.lang.IllegalArgumentException: hostname can't be null > >> > > >> > How to debug this. Even by searching in the old email it says there > was a > >> > bug in 0.90 which is fixed. I am not able to get anything more. > >> > > >> > -Jignesh > >> > On Fri, Oct 21, 2011 at 1:58 PM, Jignesh Patel < > [email protected] > >> >wrote: > >> > > >> >> I have clean up the zookeeper and it seems my computer name is also > >> changed > >> >> today as setting of dynamic ip. > >> >> > >> >> Jignesh-MacBookPro:hadoop hadoop-user$ hostname > >> >> Jignesh-MacBookPro.local > >> >> > >> >> But I still have old error > >> >> > >> >> Could not resolve the DNS name of *unknowne4ce8f3898fc* > >> >> > >> >> Why would HServerAddress get old name, instead of taking the latest > one. > >> >> > >> >> According to the following article, it advise us to refrain from > adding > >> >> hardcoded name as hadoop is efficient to pickup the appropriate DNS > >> name. > >> >> > >> >> > http://wiki.datameer.com/display/DAS1/Hadoop+Cluster+Configuration+Tips > >> >> > >> >> On Thu, Oct 20, 2011 at 7:43 PM, Shrijeet Paliwal < > >> [email protected] > >> >> > wrote: > >> >> > >> >>> Look for a DNS /etc/hosts related suggestion mentioned here : > >> >>> http://search-hadoop.com/m/N45fnRFrG12 > >> >>> also here > >> >>> > >> > http://ria101.wordpress.com/2010/01/28/setup-hbase-in-pseudo-distributed-mode-and-connect-java-client/ > >> >>> Also clean up data from zookeeper if needed and do a restart of > >> >>> services , zookkper directory is here usually : > >> >>> ${hbase.tmp.dir}/zookeeper > >> >>> > >> >>> > >> >>> PS: This issues has been reported bunch of times. Look deeper in > >> >>> mailing archives for changes required in /etc/hosts to get > standalone > >> >>> hbase running. > >> >>> > >> >>> On Thu, Oct 20, 2011 at 2:24 PM, Jignesh Patel < > >> [email protected]> > >> >>> wrote: > >> >>> > > >> >>> > Shrijeet > >> >>> > I have tried to take help from Mac group and their respond. > >> >>> > > >> >>> > "An app you wrote, or somebody else's app? > >> >>> > I'm not sure exactly how you want us to help, unknowne4ce8f3898fc > is > >> >>> indeed > >> >>> > an invalid hostname." > >> >>> > > >> >>> > According to them it seems this is a app problem, but I haven' > >> changed > >> >>> > anything and my zookeeper recognizes the IP. > >> >>> > > >> >>> > 2011-10-20 14:19:04,736 DEBUG > >> >>> org.apache.hadoop.hbase.zookeeper.ZKAssign: > >> >>> > master:49232-0x133228e8a8f0000 Successfully deleted unassigned > node > >> for > >> >>> > region 70236052 in expected state RS_ZK_REGION_OPENED > >> >>> > 2011-10-20 14:19:04,737 DEBUG > >> >>> > org.apache.hadoop.hbase.master.handler.OpenedRegionHandler: Opened > >> >>> region > >> >>> > -ROOT-,,0.70236052 on 1*92.168.1.120*,49235,1319134727150 > >> >>> > 2011-10-20 14:19:04,846 ERROR > org.apache.hadoop.hbase.HServerAddress: > >> >>> Could > >> >>> > not resolve the DNS name of *unknowne4ce8f3898fc* > >> >>> > 2011-10-20 14:19:04,847 FATAL > org.apache.hadoop.hbase.master.HMaster: > >> >>> > Unhandled exception. Starting shutdown. > >> >>> > java.lang.IllegalArgumentException: hostname can't be null > >> >>> > > >> >>> > So while I am researching with them, I post their response so that > if > >> >>> > somebody encounter same problem can direct me. > >> >>> > > >> >>> > -Jignesh > >> >>> > On Thu, Oct 20, 2011 at 2:54 PM, Shrijeet Paliwal > >> >>> > <[email protected]>wrote: > >> >>> > > >> >>> > > Jignesh, > >> >>> > > This > >> >>> > > > >> >>> > > > >> >>> > >> > http://search-hadoop.com/?q=hbase+dns&fc_project=HBase&fc_type=mail+_hash_+user > >> >>> > > and > >> >>> > > this > >> >>> > > http://www.plus.net/support/software/dns/changing_dns_mac.shtml > >> >>> > > > >> >>> > > As Stack pointed out in other thread , you can find mac OS > >> communities > >> >>> more > >> >>> > > helpful for some of your how-toes. > >> >>> > > > >> >>> > > -Shrijeet > >> >>> > > > >> >>> > > On Thu, Oct 20, 2011 at 11:47 AM, Jignesh Patel < > >> >>> [email protected] > >> >>> > > >wrote: > >> >>> > > > >> >>> > > > Thanks Stack, > >> >>> > > > > >> >>> > > > Is there any link I can refer for that? I am using Lion OS x. > >> Google > >> >>> > > > doesn't > >> >>> > > > help me much for this. > >> >>> > > > > >> >>> > > > -Jignesh > >> >>> > > > > >> >>> > > > On Thu, Oct 20, 2011 at 12:05 PM, Stack <[email protected]> > >> wrote: > >> >>> > > > > >> >>> > > > > Fix your DNS, name resolving. > >> >>> > > > > St.Ack > >> >>> > > > > > >> >>> > > > > On Thu, Oct 20, 2011 at 9:02 AM, Jignesh Patel < > >> >>> > > [email protected]> > >> >>> > > > > wrote: > >> >>> > > > > > Hbase was working till yesterday but I am seeing following > >> error > >> >>> > > today. > >> >>> > > > > > > >> >>> > > > > > 2011-10-20 11:52:02,329 ERROR > >> >>> org.apache.hadoop.hbase.HServerAddress: > >> >>> > > > > Could > >> >>> > > > > > not resolve the DNS name of unknowne4ce8f3898fc > >> >>> > > > > > 2011-10-20 11:52:02,329 FATAL > >> >>> org.apache.hadoop.hbase.master.HMaster: > >> >>> > > > > > Unhandled exception. Starting shutdown. > >> >>> > > > > > java.lang.IllegalArgumentException: hostname can't be null > >> >>> > > > > > at > >> java.net.InetSocketAddress.<init>(InetSocketAddress.java:121) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.HServerAddress.getResolvedAddress(HServerAddress.java:108) > >> >>> > > > > > at > >> >>> > > > > >> >>> > org.apache.hadoop.hbase.HServerAddress.<init>(HServerAddress.java:64) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.catalog.MetaReader.readLocation(MetaReader.java:339) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.catalog.MetaReader.readMetaLocation(MetaReader.java:281) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.catalog.CatalogTracker.getMetaServerConnection(CatalogTracker.java:282) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.catalog.CatalogTracker.verifyMetaRegionLocation(CatalogTracker.java:488) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:441) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:388) > >> >>> > > > > > at > >> org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:282) > >> >>> > > > > > at > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> > org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMaster.run(HMasterCommandLine.java:193) > >> >>> > > > > > at java.lang.Thread.run(Thread.java:680) > >> >>> > > > > > > >> >>> > > > > > >> >>> > > > > >> >>> > > > >> >>> > >> >> > >> >> > >> > > >> > > >
