Cygnus无法在Cosmos全局实例上保留数据

当试图将实体从Cygnus持久化到Cosmos全局实例时，它会失败 .

查看日志文件，我看到类似的东西：

2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:273)  - >> GET /webhdfs/v1/user/ms/def_serv/def_servpath/6_registervalues/6_registervalues.txt?op=getfilestatus&user.name=ms HTTP/1.1
12 Nov 2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276)  - >> X-Auth-Token: xxxxxxxxxxxxxxxxxxx
12 Nov 2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276)  - >> Host: cosmos.lab.fiware.org:14000
12 Nov 2015 15:31:50,006 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276)  - >> Connection: Keep-Alive
12 Nov 2015 15:31:50,007 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.sendRequestHeader:276)  - >> User-Agent: Apache-HttpClient/4.2.1 (java 1.5)
12 Nov 2015 15:31:50,284 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.close:169)  - Connection 0.0.0.0:59834<->130.206.80.46:14000 closed
12 Nov 2015 15:31:50,285 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.client.DefaultRequestDirector.tryExecute:716)  - Closing the connection.
12 Nov 2015 15:31:50,285 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.conn.DefaultClientConnection.close:169)  - Connection 0.0.0.0:59834<->130.206.80.46:14000 closed
12 Nov 2015 15:31:50,286 INFO  [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.client.DefaultRequestDirector.tryExecute:723)  - I/O exception (java.net.SocketException) caught when processing request: Connection reset
12 Nov 2015 15:31:50,287 DEBUG [SinkRunner-PollingRunner-DefaultSinkProcessor] (org.apache.http.impl.client.DefaultRequestDirector.tryExecute:728)  - Connection reset
java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(SocketInputStream.java:185)
    at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166)

（我在上面的例子中对令牌进行了模糊处理 . ）

由于某种原因，连接已关闭 .

Orion和Cygnus安装在Spain2的一个软件实验室私有实例上 .

当尝试从Orion机器的命令行发出相同的请求时，我得到相同的断开连接响应 .

curl -X GET "http://cosmos.lab.fiware.org:14000/webhdfs/v1/user/ms/def_serv/def_servpath/6_registervalues/6_registervalues.txt?op=getfilestatus&user.name=ms" -H "X-Auth-Token: xxxxxxxxxxxxxxxxxxxxxx"
curl: (56) Failure when receiving data from the peer

但令人惊讶的是，当从Cosmos全局实例的命令行执行相同的请求时，它可以工作！

看到：

[ms@cosmosmaster-gi ~]$ curl -X GET "http://cosmos.lab.fiware.org:14000/webhdfs/v1/user/ms/def_serv/def_servpath/6_registervalues/6_registervalues.txt?op=getfilestatus&user.name=ms" -H "X-Auth-Token: xxxxxxxxxxxxxxxxx"
{"FileStatus":{"pathSuffix":"","type":"FILE","length":2,"owner":"ms","group":"ms","permission":"644","accessTime":1447332222908,"modificationTime":1447253745711,"blockSize":67108864,"replication":3}}
[ms@cosmosmaster-gi ~]$

似乎Cosmos不会为从Spain2上运行的fiware实验室实例提供的连接提供服务 .

有谁知道这里的问题是什么，以及如何纠正这个问题 .

谢谢！

Menachem S.