Forgot to mention, but I am using CDH3b3. Friso
On 18 dec 2010, at 17:04, Friso van Vollenhoven wrote: > Hi, > > I tried to shut down and restart a namenode, but it throws a NPE on startup. > The last couple of lines from the log are these: > 10/12/18 15:39:07 WARN hdfs.StateChange: DIR* > FSDirectory.unprotectedSetTimes: failed to setTimes > /hbase/inrdb_ris_update_rrc00/fe5090c366e326cf2b123502e2d4bcce/data/1350525083587292896 > because source does not exist > 10/12/18 15:39:07 WARN hdfs.StateChange: DIR* > FSDirectory.unprotectedSetTimes: failed to setTimes > /hbase/inrdb_ris_update_rrc00/fe5090c366e326cf2b123502e2d4bcce/meta/4413022065008239343 > because source does not exist > 10/12/18 15:39:07 DEBUG namenode.FSNamesystem: 0: > /hbase/.logs/w2r1.inrdb.ripe.net,60020,1292333234919/w2r1.inrdb.ripe.net%3A60020.1292336839737 > numblocks : 0 clientHolder DFSClient_131715208 clientMachine 193.0.23.32 > 10/12/18 15:39:07 DEBUG hdfs.StateChange: DIR* FSDirectory.unprotectedDelete: > failed to remove > /hbase/.logs/w2r1.inrdb.ripe.net,60020,1292333234919/w2r1.inrdb.ripe.net%3A60020.1292336839737 > because it does not exist > 10/12/18 15:39:07 ERROR namenode.NameNode: java.lang.NullPointerException > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1088) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.addChild(FSDirectory.java:1100) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.addNode(FSDirectory.java:1003) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedAddFile(FSDirectory.java:206) > at > org.apache.hadoop.hdfs.server.namenode.FSEditLog.loadFSEdits(FSEditLog.java:637) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSEdits(FSImage.java:1039) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:845) > at > org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:379) > at > org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:99) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:343) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:317) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:214) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:394) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1148) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1157) > > 10/12/18 15:39:07 INFO namenode.NameNode: SHUTDOWN_MSG: > /************************************************************ > SHUTDOWN_MSG: Shutting down NameNode at m1r1.inrdb.ripe.net/193.0.23.51 > ************************************************************/ > > It looks like the array populated by > INodeDirectoryWithQuota#getExistingPathINodes(...) has a null somewhere which > is not expected by the FSDirectory#addChild(...). I tried to do some more > digging, but to me it is not immediately obvious from the code. > > I tried going back to a checkpoint, but the problem is also in there. > > Help is very much appreciated. > > > Thanks, > Friso >
