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HDFS-9049. Make Datanode Netty reverse proxy port to be configurable. Contributed by Vinayakumar B. 

(cherry picked from commit 09efdfe9e1)
This commit is contained in:
Vinayakumar B 2018-01-17 14:16:48 +05:30 committed by Jason Lowe
parent ce394be809
commit 2443692434
3 changed files with 15 additions and 1 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
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@ -617,6 +617,8 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
public static final String DFS_DATANODE_HTTP_ADDRESS_KEY = "dfs.datanode.http.address";
public static final int DFS_DATANODE_HTTP_DEFAULT_PORT = 9864;
public static final String DFS_DATANODE_HTTP_ADDRESS_DEFAULT = "0.0.0.0:" + DFS_DATANODE_HTTP_DEFAULT_PORT;
public static final String DFS_DATANODE_HTTP_INTERNAL_PROXY_PORT =
"dfs.datanode.http.internal-proxy.port";
public static final String DFS_DATANODE_MAX_RECEIVER_THREADS_KEY =
HdfsClientConfigKeys.DeprecatedKeys.DFS_DATANODE_MAX_RECEIVER_THREADS_KEY;
public static final int DFS_DATANODE_MAX_RECEIVER_THREADS_DEFAULT = 4096;

5
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/web/DatanodeHttpServer.java
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@ -72,6 +72,7 @@ import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_ADMIN;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_HTTPS_ADDRESS_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_HTTPS_ADDRESS_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_HTTP_ADDRESS_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_HTTP_INTERNAL_PROXY_PORT;
public class DatanodeHttpServer implements Closeable {
private final HttpServer2 infoServer;
@ -97,12 +98,14 @@ public class DatanodeHttpServer implements Closeable {
Configuration confForInfoServer = new Configuration(conf);
confForInfoServer.setInt(HttpServer2.HTTP_MAX_THREADS_KEY, 10);
int proxyPort =
confForInfoServer.getInt(DFS_DATANODE_HTTP_INTERNAL_PROXY_PORT, 0);
HttpServer2.Builder builder = new HttpServer2.Builder()
.setName("datanode")
.setConf(confForInfoServer)
.setACL(new AccessControlList(conf.get(DFS_ADMIN, " ")))
.hostName(getHostnameForSpnegoPrincipal(confForInfoServer))
.addEndpoint(URI.create("http://localhost:0"))
.addEndpoint(URI.create("http://localhost:" + proxyPort))
.setFindPort(true);
final boolean xFrameEnabled = conf.getBoolean(

9
hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
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@ -145,6 +145,15 @@
</description>
</property>
<property>
<name>dfs.datanode.http.internal-proxy.port</name>
<value>0</value>
<description>
The datanode's internal web proxy port.
By default it selects a random port available in runtime.
</description>
</property>
<property>
<name>dfs.datanode.handler.count</name>
<value>10</value>