On 06/17/2011 07:41 AM, Lemon Cheng wrote:
Hi,
I am using the hadoop-0.20.2. After calling ./start-all.sh, i can type
"hadoop dfs -ls".
However, when i type "hadoop dfs -cat
/usr/lemon/wordcount/input/file01", the error is shown as follow.
I have searched the related problem in the web, but i can't find a
solution for helping me to solve this problem.
Anyone can give suggestion?
Many Thanks.
11/06/17 19:27:12 INFO hdfs.DFSClient: No node available for block:
blk_7095683278339921538_1029 file=/usr/lemon/wordcount/input/file01
11/06/17 19:27:12 INFO hdfs.DFSClient: Could not obtain block
blk_7095683278339921538_1029 from any node: java.io.IOException: No
live nodes contain current block
11/06/17 19:27:15 INFO hdfs.DFSClient: No node available for block:
blk_7095683278339921538_1029 file=/usr/lemon/wordcount/input/file01
11/06/17 19:27:15 INFO hdfs.DFSClient: Could not obtain block
blk_7095683278339921538_1029 from any node: java.io.IOException: No
live nodes contain current block
11/06/17 19:27:18 INFO hdfs.DFSClient: No node available for block:
blk_7095683278339921538_1029 file=/usr/lemon/wordcount/input/file01
11/06/17 19:27:18 INFO hdfs.DFSClient: Could not obtain block
blk_7095683278339921538_1029 from any node: java.io.IOException: No
live nodes contain current block
11/06/17 19:27:21 WARN hdfs.DFSClient: DFS Read: java.io.IOException:
Could not obtain block: blk_7095683278339921538_1029
file=/usr/lemon/wordcount/input/file01
at
org.apache.hadoop.hdfs.DFSClient$DFSInputStream.chooseDataNode(DFSClient.java:1812)
at
org.apache.hadoop.hdfs.DFSClient$DFSInputStream.blockSeekTo(DFSClient.java:1638)
at
org.apache.hadoop.hdfs.DFSClient$DFSInputStream.read(DFSClient.java:1767)
at java.io.DataInputStream.read(DataInputStream.java:83)
at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:47)
at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:85)
at org.apache.hadoop.fs.FsShell.printToStdout(FsShell.java:114)
at org.apache.hadoop.fs.FsShell.access$100(FsShell.java:49)
at org.apache.hadoop.fs.FsShell$1.process(FsShell.java:352)
at
org.apache.hadoop.fs.FsShell$DelayedExceptionThrowing.globAndProcess(FsShell.java:1898)
at org.apache.hadoop.fs.FsShell.cat
<http://org.apache.hadoop.fs.fsshell.cat/>(FsShell.java:346)
at org.apache.hadoop.fs.FsShell.doall(FsShell.java:1543)
at org.apache.hadoop.fs.FsShell.run(FsShell.java:1761)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at org.apache.hadoop.fs.FsShell.main(FsShell.java:1880)
Regards,
Lemon
Are you sure that all your DataNodes are online?
--
Marcos Luís Ortíz Valmaseda
Software Engineer (UCI)
http://marcosluis2186.posterous.com
http://twitter.com/marcosluis2186
