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) >
