天鹅座无法在Cosmos全局实例上保留数据 [英] Cygnus can not persist data on Cosmos global instance

问题描述

当尝试将一个实体从Cygnus持久化到Cosmos全局实例时，它会失败.

When trying to persist an entity from Cygnus to Cosmos global instance it fails.

在查看日志文件时，我看到了类似的内容:

Looking at the log file I see something like that:

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)

(在上面的示例中，我混淆了令牌.)

(I have obfuscated the token in the example above.)

由于某种原因，连接已关闭.

for some reason the connection is closed.

Orion和Cygnus安装在西班牙的一个软件实验室私有实例上.

Orion and Cygnus are installed on a fiware lab private instance in Spain2.

当尝试从Orion机器的命令行中触发相同的请求时，我得到了相同的断开响应.

When trying to fire the same request from the command line from the Orion machine, I get the same disconnected response.

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

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

But surprisingly, when doing the same request from the command line from the Cosmos global instance, it works!

请参阅:

[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 ~]$

好像Cosmos不会为来自运行在Spain2上的fiware实验室实例的连接提供服务.

Seems like Cosmos will not service connection arriving from a fiware lab instance running on Spain2.

有人知道这里的问题是什么，以及如何解决这个问题.

Does anyone knows what's the issue here, and how to correct this.

谢谢！

Menachem S.

Menachem S.

推荐答案

问题已通过解决方法解决.

Issue was solved by a workaround.

天鹅座服务器安装在外部节点(Azure上的计算机)上，并且在Orion->天鹅座-> Cosmos流中运行正常.

The Cygnus server was installed on an external node ( a Machine on Azure), and everything works fine wrt Orion-->Cygnus-->Cosmos stream.

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