THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Save the minimal snippet to hadoop-dist/target/ozone-?.?.?-SNAPSHOT/etc/hadoop/ozone-site.xml in the compiled distribution.
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<configuration> <properties> <property><name>ozone.scm.block.client.address</name><value>localhost</value></property> <property><name>ozone.handler.type</name><value>distributed</value></property> <property><name>ozone.enabled</name><value>True</value></property> <property><name>ozone.scm.datanode.id</name><value>/tmp/ozone/data/datanode.id</value></property> <property><name>ozone.scm.client.address</name><value>localhost</value></property> <property><name>ozone.replication</name><value>1</value></property> <property><name>ozone.metadata.dirs</name><value>/tmp/ozone/data/metadata</value></property> <property><name>ozone.scm.names</name><value>localhost</value></property> <property><name>ozone.om.address</name><value>localhost</value></property> </properties> </configuration> |
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To start ozone, you need to start SCM, OzoneManager and DataNode. In pseudo-cluster mode, all services will be started on localhost.
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bin/ozone scm -init bin/ozone --daemon start scm bin/ozone om -createObjectStore bin/ozone --daemon start om bin/ozone --daemon start datanode |
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Once you have ozone running you can use these Ozone shell commands to create a volume, bucket and keys. E.g.
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bin/ozone oz volume create --user=$USER vol1 bin/ozone oz bucket create vol1/bucket1 dd if=/dev/zero of=/tmp/myfile bs=1024 count=1 bin/ozone oz key put vol1/bucket1/key1 /tmp/myfile |
Stop Services
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bin/ozone --daemon stop om bin/ozone --daemon stop scm bin/ozone --daemon stop datanode |
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Remove the following directories to wipe the Ozone pseudo-cluster state. This will also delete all user data (volumes/buckets/keys) you added to the pseudo-cluster.
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rm -fr /tmp/ozone
rm -fr /tmp/hadoop-${USER}* |
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