How to remove query hanging in impala UI?

[#1]

Hello,

I have some questions about the running queries in Impala UI. ( port:25000 )

There are some queries hanging in `in flight `

Those queries seems dead.

I tried to remove it by clicking 'Cancel' button, but I just saw the msg, "Error: Query not yet running"

Question 1:

Is there any other way to remove those queries from `in flight` status without restarting impala-server? 

Question 2:

Is there any way ( or Impala-server API ) to retrieve all "Completed Queries" at node level?

Thank you

[#2]

What version of impala are you using?  Would you be able to share the impalad.INFO log file when the problem occurs?

Regarding question #2: The web UI is the only way to access the query archive from the impalad itself.  You can increase the number of queries archived using the --query_log_size, or keep track of all queries by setting the option to -1 (note however, that the archive is kept in memory and so if it's set to -1, the memory usage will continue to grow).

[#3]

Hello,

Around that time, one of our node went down.

Thank you