Details
Description
I've been seeing this with Hadoop 2.0.0-alpha-SNAPSHOT and HBase 0.94.0-SNAPSHOT:
2012-05-08 15:18:00,692 FATAL [RegionServer:0;acer.localdomain,48307,1336515479011] regionserver.HRegionServer(1674): ABORTING region server acer.localdomain,48307,1336515479011: Unhandled exception: No FileSystem for scheme: hdfs java.io.IOException: No FileSystem for scheme: hdfs at org.apache.hadoop.hbase.fs.HFileSystem.newInstanceFileSystem(HFileSystem.java:146) at org.apache.hadoop.hbase.fs.HFileSystem.<init>(HFileSystem.java:75) at org.apache.hadoop.hbase.regionserver.HRegionServer.handleReportForDutyResponse(HRegionServer.java:973) at org.apache.hadoop.hbase.MiniHBaseCluster$MiniHBaseClusterRegionServer.handleReportForDutyResponse(MiniHBaseCluster.java:110) at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:671) at org.apache.hadoop.hbase.MiniHBaseCluster$MiniHBaseClusterRegionServer.runRegionServer(MiniHBaseCluster.java:136) at org.apache.hadoop.hbase.MiniHBaseCluster$MiniHBaseClusterRegionServer.access$000(MiniHBaseCluster.java:89) at org.apache.hadoop.hbase.MiniHBaseCluster$MiniHBaseClusterRegionServer$1.run(MiniHBaseCluster.java:120) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:357) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1212) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.apache.hadoop.hbase.util.Methods.call(Methods.java:37) at org.apache.hadoop.hbase.security.User.call(User.java:586) at org.apache.hadoop.hbase.security.User.access$700(User.java:50) at org.apache.hadoop.hbase.security.User$SecureHadoopUser.runAs(User.java:426) at org.apache.hadoop.hbase.MiniHBaseCluster$MiniHBaseClusterRegionServer.run(MiniHBaseCluster.java:118) at java.lang.Thread.run(Thread.java:679)
Not sure precisely when it started. First I thought it might be due to HBASE-5955 but I cherry picked that change over from trunk. Then I got HBASE-5963 out of the way.