Riza Suminto has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/21851 )

Change subject: IMPALA-13389: Refactor webUI scripts to use ES6 syntax
......................................................................


Patch Set 14:

(4 comments)

Please search for unused/commented code and consider removing them.

http://gerrit.cloudera.org:8080/#/c/21851/14/www/scripts/query_timeline/fragment_diagram.js
File www/scripts/query_timeline/fragment_diagram.js:

http://gerrit.cloudera.org:8080/#/c/21851/14/www/scripts/query_timeline/fragment_diagram.js@201
PS14, Line 201: //  const LAST_TS_INDEX = events[last_e_index].ts_list.length - 
1;
Can this be removed?


http://gerrit.cloudera.org:8080/#/c/21851/14/www/scripts/query_timeline/fragment_diagram.js@271
PS14, Line 271: /*
              :   y = rownum * row_height;
              :   if (events[last_e_index].no_bar === undefined) {
              :     // Plan node's top and bottom outlines
              :     let top_edge_ts, bottom_edge_ts;
              :     if (bucketed) {
              :       top_edge_ts = events[last_e_index].parts[0].max;
              :       bottom_edge_ts = events[last_e_index].parts[bucket_size - 
1].max;
              :     } else {
              :       top_edge_ts = events[last_e_index].ts_list[0];
              :       bottom_edge_ts = 
events[last_e_index].ts_list[last_ts_index];
              :     }
              :     plan_node.appendChild(getSvgLine(stroke_fill_colors.black, 
xoffset, y,
              :         xoffset + top_edge_ts * px_per_ns, y, false));
              :     plan_node.appendChild(getSvgLine(stroke_fill_colors.black, 
xoffset, y + bar_height,
              :         xoffset +  bottom_edge_ts * px_per_ns, y + bar_height,
              :         false));
              :   }*/
Can this be removed?


http://gerrit.cloudera.org:8080/#/c/21851/14/www/scripts/query_timeline/fragment_diagram.js@609
PS14, Line 609: //node = node_stack.pop();
Can this be removed?


http://gerrit.cloudera.org:8080/#/c/21851/14/www/scripts/query_timeline/global_members.js
File www/scripts/query_timeline/global_members.js:

http://gerrit.cloudera.org:8080/#/c/21851/14/www/scripts/query_timeline/global_members.js@22
PS14, Line 22: export const BORDER_STROKE_WIDTH = 2;
             : export const MARGIN_HEADER_FOOTER = 5;
             : export const MARGIN_CHART_END = 60;
             : export const DIAGRAM_MIN_HEIGHT = 200;
Is it appropriate to prefix all this constants with QUERY_TIMELINE_?
It looks like they are exclusively used in timeline page, so that prefix can 
increase clarity.
Otherwise, please add code comment explaining where/how they are being used.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Ie38f2c642ede14956a2c6d551a58e42538204768
Gerrit-Change-Number: 21851
Gerrit-PatchSet: 14
Gerrit-Owner: Surya Hebbar <sheb...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Kurt Deschler <kdesc...@cloudera.com>
Gerrit-Reviewer: Michael Smith <michael.sm...@cloudera.com>
Gerrit-Reviewer: Riza Suminto <riza.sumi...@cloudera.com>
Gerrit-Reviewer: Surya Hebbar <sheb...@cloudera.com>
Gerrit-Comment-Date: Thu, 20 Mar 2025 14:08:52 +0000
Gerrit-HasComments: Yes

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