maobaolong created HDFS-13195:
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Summary: DataNode conf page cannot display the current value
after reconfig
Key: HDFS-13195
URL: https://issues.apache.org/jira/browse/HDFS-13195
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode
Affects Versions: 2.7.1
Reporter: maobaolong
Now the branch-2.7 support dfs.datanode.data.dir reconfig, but after i reconfig
this key, the conf page's value is still the old config value.
The reason is that:
{code:java}
public DatanodeHttpServer(final Configuration conf,
final DataNode datanode,
final ServerSocketChannel externalHttpChannel)
throws IOException {
this.conf = conf;
Configuration confForInfoServer = new Configuration(conf);
confForInfoServer.setInt(HttpServer2.HTTP_MAX_THREADS, 10);
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";))
.setFindPort(true);
this.infoServer = builder.build();
{code}
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