Use TestDFSIO to test HDFS, and Failed with the exception: All datanodes are
bad. Aborting...
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Key: HDFS-2774
URL: https://issues.apache.org/jira/browse/HDFS-2774
Project: Hadoop HDFS
Issue Type: Test
Components: test
Affects Versions: 0.20.2
Environment: 20 nodes with 2-core cpu and 1G RAM 20G Hard disk ,1
switch
Reporter: bdsyq
Fix For: 0.20.2
use TestDFSIO to test the HDFS
use the commond: hadoop jar ....TestDFSIO - write -nrFiles 10 -fileSize 500
when running ,errors occurs:
12/01/09 16:00:45 INFO mapred.JobClient: Task Id :
attempt_201201091556_0001_m_000006_2, Status : FAILED
java.io.IOException: All datanodes 192.168.0.17:50010 are bad. Aborting...
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.processDatanodeError(DFSClient.java:2556)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$1600(DFSClient.java:2102)
at
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2265)
attempt_201201091637_0002_m_000005_0: log4j:WARN No appenders could be found
for logger (org.apache.hadoop.hdfs.DFSClient).
attempt_201201091637_0002_m_000005_0: log4j:WARN Please initialize the log4j
system properly.
I don't know why?
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