maybe it's a network connection problem
Can you ping, ssh, netstat your machines? do you have a firewall?
what command did you use to get the above error?
what is your configuration (single machine?) ?
I think you need to provide more info.
On 28/06/07, DANIEL CLARK <[EMAIL PROTECTED]> wrote:
I entered the following in hadoop-site.xml and am getting 'connection
refused' stacktrace at Linux command line. What could cause this?
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.default.name</name>
<value>MY.MACHINE.com:9000</value>
<description>
The name of the default file system. Either the literal string
"local" or a host:port for NDFS.
</description>
</property>
<property>
<name>mapred.job.tracker</name>
<value>my.machine.com:9001</value>
<description>
The host and port that the MapReduce job tracker runs at. If
"local", then jobs are run in-process as a single map and
reduce task.
</description>
</property>
<property>
<name>mapred.map.tasks</name>
<value>1</value>
<description>
define mapred.map tasks to be number of slave hosts
</description>
</property>
<property>
<name>mapred.reduce.tasks</name>
<value>1</value>
<description>
define mapred.reduce tasks to be number of slave hosts
</description>
</property>
<property>
<name>dfs.name.dir</name>
<value>/opt/nutch/filesystem/name</value>
</property>
<property>
<name>dfs.data.dir</name>
<value>/opt/nutch/filesystem/data</value>
</property>
<property>
<name>mapred.system.dir</name>
<value>/opt/nutch/filesystem/mapreduce/system</value>
</property>
<property>
<name>mapred.local.dir</name>
<value>/opt/nutch/filesystem/mapreduce/local</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
Exception in thread "main" java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java
:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(
Client.java:149)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:531)
at org.apache.hadoop.ipc.Client.call(Client.java:458)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:163)
at org.apache.hadoop.dfs.$Proxy0.getProtocolVersion(Unknown
Source)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:247)
at org.apache.hadoop.dfs.DFSClient.<init>(DFSClient.java:105)
at
org.apache.hadoop.dfs.DistributedFileSystem$RawDistributedFileSystem.initialize
(DistributedFileSystem.java:67)
at org.apache.hadoop.fs.FilterFileSystem.initialize(
FilterFileSystem.java:57)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:160)
at org.apache.hadoop.fs.FileSystem.getNamed(FileSystem.java:119)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:91)
at org.apache.nutch.crawl.Crawl.main(Crawl.java:83)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Daniel Clark, President
DAC Systems, Inc.
5209 Nanticoke Court
Centreville, VA 20120
Cell - (703) 403-0340
Email - [EMAIL PROTECTED]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
---------------------------------------------------------
Honsali Khalil − 本査理 カリル
Academic>Japan>NIT>Grad. Sc. Eng.>Dept. CS>Hiroshi&Tsumura Lab.
http://www.matlab.nitech.ac.jp/~k-hon/
+81 (zero-)eight-zero 5134 8119
[EMAIL PROTECTED] (instant reply mail)
