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From "Yair Even-Zohar" <ya...@audiencescience.com>
Subject RetriesExhaustedException for TableReduce
Date Tue, 17 Mar 2009 22:19:58 GMT
While loading a large amount of data to a non-empty table using
Tablereduce I get the error below. 

The first 1-3 reduces are usually successful, and then I get this
message.

 

This error has occur when I'm using either 2 or 8 servers and regardless
on the number of reduces (4, 16 or 160). It did not occur when loading a
small amount of data (well, the first few reduces are successful
anyway).

 

I googled   "org.apache.hadoop.hbase.client.RetriesExhaustedException:"
without much help.

 

Thanks

-Yair

 

 

org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to
contact region server 10.249.203.0:60020 for region
ase,RnpdOFZn-goAAADK-uMA,1237315693597, row 'T82JYnln-goAAACeGdMA', but
failed after 10 attempts.
Exceptions:
java.io.IOException: Call to /10.249.203.0:60020 failed on local
exception: java.io.EOFException
java.net.ConnectException: Call to /10.249.203.0:60020 failed on
connection exception: java.net.ConnectException: Connection refused
java.net.ConnectException: Call to /10.249.203.0:60020 failed on
connection exception: java.net.ConnectException: Connection refused
java.net.ConnectException: Call to /10.249.203.0:60020 failed on
connection exception: java.net.ConnectException: Connection refused
java.net.ConnectException: Call to /10.249.203.0:60020 failed on
connection exception: java.net.ConnectException: Connection refused
java.net.ConnectException: Call to /10.249.203.0:60020 failed on
connection exception: java.net.ConnectException: Connection refused
java.net.ConnectException: Call to /10.249.203.0:60020 failed on
connection exception: java.net.ConnectException: Connection refused
java.net.ConnectException: Call to /10.249.203.0:60020 failed on
connection exception: java.net.ConnectException: Connection refused
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out
trying to locate root region
 
        at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegion
ServerWithRetries(HConnectionManager.java:841)
        at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.processBa
tchOfRows(HConnectionManager.java:932)
        at
org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:1372)
        at
org.apache.hadoop.hbase.client.HTable.commit(HTable.java:1316)
        at
org.apache.hadoop.hbase.client.HTable.commit(HTable.java:1296)
        at
org.apache.hadoop.hbase.mapred.TableOutputFormat$TableRecordWriter.write
(TableOutputFormat.java:73)
        at
org.apache.hadoop.hbase.mapred.TableOutputFormat$TableRecordWriter.write
(TableOutputFormat.java:53)
        at
org.apache.hadoop.mapred.ReduceTask$3.collect(ReduceTask.java:405)
        at
com.revenuescience.audiencesearch.fba.ClogUploader$TableUploader.reduce(
ClogUploader.java:223)
        at
com.revenuescience.audiencesearch.fba.ClogUploader$TableUploader.reduce(
ClogUploader.java:202)
        at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:430)
        at org.apache.hadoop.mapred.Child.main(Child.java:155)

 


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