The system does not recover from errors

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Keep the tomcat and http server up
2.Shut down hadoop servers
3.Try to search with the query servers stopped
4.Restart the query servers
5.Retry to search for a term

What is the expected output? What do you see instead?
The expected output is to have the last search return the results if the query 
servers are back up.

Please use labels and text to provide additional information.

Original issue reported on code.google.com by simaofon...@gmail.com on 5 Mar 2012 at 5:57

[GoogleCodeExporter]

What is the obtained behavior?

By the description it isn't clear if the problem occur in step 3 or step 5.

Could you further describe/detail the problem?

Original comment by devel.da...@vcruz.net on 11 May 2012 at 3:35

• Added labels: OpSys-Hadoop

[GoogleCodeExporter]

The problem occurs in step 5. 
The search servers were restarted and are available. The application should be 
able to reconnect to the servers and respond to queries. 

Original comment by simaofon...@gmail.com on 11 May 2012 at 4:15

[GoogleCodeExporter]

So service returns the search result page without any result?

Could any kind of watchdog be viable to recover for connection loses?

Original comment by devel.da...@vcruz.net on 15 May 2012 at 10:08

[GoogleCodeExporter]

So service returns the search result page without any result? Yes

Considering tomcat with 2 Query Servers (QS).
When QS1 stops:
  Replies from QS2.
QS1 restarts:
  The tomcat does not respond from server
if both QS are down:
  Try to search: page of results not found

Original comment by simaofon...@gmail.com on 15 May 2012 at 11:07