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https://issues.apache.org/jira/browse/DRILL-4286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16252672#comment-16252672
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ASF GitHub Bot commented on DRILL-4286:
---------------------------------------

Github user dvjyothsna commented on a diff in the pull request:

    https://github.com/apache/drill/pull/921#discussion_r150993718
  
    --- Diff: exec/java-exec/src/main/resources/rest/index.ftl ---
    @@ -57,19 +57,19 @@
                   <th>Control Port</th>
                   <th>Data Port</th>
                   <th>Version</th>
    +              <th>Status</th>
                 </tr>
               </thead>
               <tbody>
                 <#assign i = 1>
                 <#list model.getDrillbits() as drillbit>
    -              <tr>
    +              <tr id="row-${i}">
                     <td>${i}</td>
    -                <td>${drillbit.getAddress()}
    -                  <#if drillbit.isCurrent()>
    +                <td id="address" >${drillbit.getAddress()}<#if 
drillbit.isCurrent()>
                         <span class="label label-info">Current</span>
                       </#if>
                     </td>
    -                <td>${drillbit.getUserPort()}</td>
    +                <td id="port" >${drillbit.getUserPort()}</td>
    --- End diff --
    
    Yes, true. But for every row I have a different ID ("row-1") and I'm 
accessing "port"(child) of that row.  This was the entire row is unique and 
need not assign  a new unique id for every element in that row. Am I missing 
something here?


> Have an ability to put server in quiescent mode of operation
> ------------------------------------------------------------
>
>                 Key: DRILL-4286
>                 URL: https://issues.apache.org/jira/browse/DRILL-4286
>             Project: Apache Drill
>          Issue Type: New Feature
>          Components: Execution - Flow
>            Reporter: Victoria Markman
>            Assignee: Venkata Jyothsna Donapati
>
> I think drill will benefit from mode of operation that is called "quiescent" 
> in some databases. 
> From IBM Informix server documentation:
> {code}
> Change gracefully from online to quiescent mode
> Take the database server gracefully from online mode to quiescent mode to 
> restrict access to the database server without interrupting current 
> processing. After you perform this task, the database server sets a flag that 
> prevents new sessions from gaining access to the database server. The current 
> sessions are allowed to finish processing. After you initiate the mode 
> change, it cannot be canceled. During the mode change from online to 
> quiescent, the database server is considered to be in Shutdown mode.
> {code}
> This is different from shutdown, when processes are terminated. 



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