Alex Rodoni created IMPALA-6515:

             Summary: Impala Doc: HAproxy with sticky session requires the 
check option
                 Key: IMPALA-6515
             Project: IMPALA
          Issue Type: Bug
          Components: Docs
    Affects Versions: Impala 2.11.0
            Reporter: Alex Rodoni
            Assignee: Alex Rodoni

In the following Impala doc, 

One of the setting is this:
balance source
server symbolic_name_5

The above setting is used to allow sticky sessions for Impalad. However, when 
that Impalad goes down, any subsequent queries fail in the Hue session fails. 
In order for subsequent queries to run as expected, we require "check" option, 
which makes sure that the target is alive and if not, then redirect to another 

server symbolic_name_5 check

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