java.net.MalformedURLException

CloverDX Platform
1

I have a graph that I have previously run just fine. When I tried to run it again today, I received this error “Error: Exception thrown by the agent : java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: (null): (null): nodename nor servname provided, or not known”.
I am trying to move data from a DB table to another DB table. And it has worked in the past. All the connections validate and I can view the data from the input table.
Any suggestions appreciated.
Thank you.

2

Hi svyates,

can you please give us more information:

* version and type of used CloverETL
* operating system you use
* full call stack of thrown exception
* do you use proxy server?

Thank you.

3

Clover ETL Community Product 3.3.0.021P

Mac OS X 10.8.2

Sorry, I don’t know what “full can stack of thrown exception” means

No proxy server

Now, this morning, I was in Starbucks connected to their WiFi and it worked. When it worked before I was connected to a different network. It seems when I’m connected to the WiFi in my office is when it doesn’t work. Perhaps there’s a network setting that I need to change?

Thanks!

4

Hi svyates,

by “full call stack of thrown exception” is meant continuation of:


Error: Exception thrown by the agent : java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: (null): (null): nodename nor servname provided, or not known

you sent. I expect you see this error in Console window after running graph, right? so please send me complete content of Console window, including this error.

Thank you.

5

Hi,

What I sent is the entire content of the console window.

Error: Exception thrown by the agent : java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: (null): (null): nodename nor servname provided, or not known

Cheers,

Steve

6

Hi Jaroslav,

I believe that I have fixed the problem. It was a network problem. The router provided by my ISP and used as the DHCP server on the network, was assigning a search domain “Home” when assigning an IP address. With that entry in the search domains, I was getting the error when running. I changed to another DHCP server which does not assign anything to the search domain, and with the search domain blank, the connections are getting made and the process runs fine. I don’t understand it, but I’ll take the result. :slight_smile:
Don’t know if there’s another fix from the Clover side that you can recommend, if so I’d appreciate it. Either way, it’s working for now.
Thanks!

Steve

7

Hi Steve,

Good to know it works now. It is always hard to advice without detail knowledge of network environment.

Only remark I have is, that the exception is not caused by database connection (that would be part of run log) but because of failing:

  • Engine start

  • Connecting to running Engine in order to get logs