WangYuanben created HDDS-9512:
---------------------------------
Summary: Datanode in ozone share a same port with datanode in HDFS.
Key: HDDS-9512
URL: https://issues.apache.org/jira/browse/HDDS-9512
Project: Apache Ozone
Issue Type: Bug
Components: Ozone Datanode
Reporter: WangYuanben
Now in master branch, we have the config like below:
{code:java}
<property>
<name>hdds.datanode.client.port</name>
<value>9864</value>
<tag>OZONE, HDDS, MANAGEMENT</tag>
<description>
The port number of the Ozone Datanode client service.
</description>
</property> {code}
where HDFS has the config like this:
{code:java}
<property>
<name>dfs.datanode.http.address</name>
<value>0.0.0.0:9864</value>
<description>
The datanode http server address and port.
</description>
</property> {code}
Obviously they share the same port 9864. When starting HddsDatanodeService in
the node where datanode of HDFS is running, we get the error:
{code:java}
Caused by: java.net.BindException: Problem binding to [0.0.0.0:9864]
java.net.BindException: Address already in use; For more details see:
http://wiki.apache.org/hadoop/BindException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:930)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:826)
at org.apache.hadoop.ipc.Server.bind(Server.java:680)
at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:1288)
at org.apache.hadoop.ipc.Server.<init>(Server.java:3223)
at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:1195)
at
org.apache.hadoop.ipc.ProtobufRpcEngine2$Server.<init>(ProtobufRpcEngine2.java:485)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:452)
at
org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:375)
at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:986)
at
org.apache.hadoop.ozone.HddsDatanodeClientProtocolServer.startRpcServer(HddsDatanodeClientProtocolServer.java:138)
at
org.apache.hadoop.ozone.HddsDatanodeClientProtocolServer.lambda$getRpcServer$0(HddsDatanodeClientProtocolServer.java:110)
at
org.apache.hadoop.hdds.HddsUtils.preserveThreadName(HddsUtils.java:847)
at
org.apache.hadoop.ozone.HddsDatanodeClientProtocolServer.getRpcServer(HddsDatanodeClientProtocolServer.java:110)
at
org.apache.hadoop.ozone.HddsDatanodeClientProtocolServer.<init>(HddsDatanodeClientProtocolServer.java:64)
at
org.apache.hadoop.ozone.HddsDatanodeService.start(HddsDatanodeService.java:317)
... 13 more
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.apache.hadoop.ipc.Server.bind(Server.java:663)
... 26 more {code}
We can't run the datanode of HDFS when HddsDatanodeService is on as well.
This affects the compatibility of Ozone with HDFS. Therefore, maybe we should
change this port.
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