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https://issues.apache.org/jira/browse/DRILL-4286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16253376#comment-16253376
]
ASF GitHub Bot commented on DRILL-4286:
---------------------------------------
Github user arina-ielchiieva commented on a diff in the pull request:
https://github.com/apache/drill/pull/921#discussion_r151111410
--- Diff: exec/java-exec/src/main/resources/rest/index.ftl ---
@@ -179,6 +184,98 @@
</div>
</div>
</div>
+ <script charset="utf-8">
+ var refreshTime = 2000;
+ var refresh = getRefreshTime();
+ var timeout;
+ var size = $("#size").html();
+
+ function getRefreshTime() {
+ var refresh = $.ajax({
+ type: 'GET',
+ url: '/graceperiod',
+ dataType: "json",
+ complete: function(data) {
+ refreshTime =
data.responseJSON["graceperiod"];
+ refreshTime = refreshTime/3;
+ timeout =
setTimeout(reloadStatus,refreshTime );
+ }
+ });
+ }
+ function reloadStatus () {
+ console.log(refreshTime);
+ var result = $.ajax({
+ type: 'GET',
+ url: '/state',
+ dataType: "json",
+ complete: function(data) {
+ fillStatus(data,size);
+ }
+ });
+ timeout = setTimeout(reloadStatus, refreshTime);
+ }
+
+ function fillStatus(data,size) {
+ var status_map = (data.responseJSON);
+ for (i = 1; i <= size; i++) {
+ var address =
$("#row-"+i).find("#address").contents().get(0).nodeValue;
+ address = address.trim();
+ var port = $("#row-"+i).find("#port").html();
+ var key = address+"-"+port;
+
+ if (status_map[key] == null) {
+ $("#row-"+i).find("#status").text("OFFLINE");
+
$("#row-"+i).find("#shutdown").prop('disabled',true).css('opacity',0.5);
+ $("#row-"+i).find("#queriesCount").text("");
+ }
+ else {
+ if( status_map[key] == "ONLINE") {
+ $("#row-"+i).find("#status").text(status_map[key]);
+ }
+ else {
+ fillQueryCount(address,i);
+ $("#row-"+i).find("#status").text(status_map[key]);
+ }
+ }
+ }
+ }
+ function fillQueryCount(address,row_id) {
+ port_num = 8047
--- End diff --
Port number is not always 8047. It can be configured via
`drill.exec.http.port`.
> 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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