Error occurred in "crawldb TestDB/crawldb" reduce phase
i get error msg --- java.lang.OutOfMemoryError: Java heap space
my command
bin/nutch crawl url -dir TestDB -depth 4 -threads 3
single fetchlist around in 200000
my settings on the memory
hadoop-env.sh
export HADOOP_HEAPSIZE=800
hadoop-site.xml
<property>
<name>mapred.tasktracker.map.tasks.maximum</name>
<value>4</value>
</property>
<property>
<name>mapred.tasktracker.reduce.tasks.maximum</name>
<value>4</value>
</property>
<property>
<name>mapred.map.tasks</name>
<value>2</value>
</property>
<property>
<name>mapred.reduce.tasks</name>
<value>2</value>
</property>
<property>
<name>mapred.map.max.attempts</name>
<value>4</value>
</property>
<property>
<name>mapred.reduce.max.attempts</name>
<value>4</value>
</property>
<property>
<name>mapred.child.java.opts</name>
<value>-Xmx250m</value>
</property>
