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https://issues.apache.org/jira/browse/KYLIN-2952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16212188#comment-16212188
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Billy Liu commented on KYLIN-2952:
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The epoch has no timezone info. All API use epoch only. What's your proposal or
question?
> dynamic cube build for time(statTime and endTime)
> -------------------------------------------------
>
> Key: KYLIN-2952
> URL: https://issues.apache.org/jira/browse/KYLIN-2952
> Project: Kylin
> Issue Type: Improvement
> Components: REST Service
> Affects Versions: v1.6.0
> Environment: linux
> Reporter: wenxue lin
> Assignee: Zhong,Jason
> Priority: Minor
>
> ex => curl -X PUT -u "ADMIN:KYLIN" -H
> "Content-Type:application/json;charset=utf-8" -d
> '{"startTime":1508601600000,"endTime":1508688000000,"buildType":"BUILD"}'
> http://host:port/kylin/api/cubes/bi_dispatch_waiting_service_cube/rebuild
> desc :
> rest api param is startTime:1508601600000(2017-10-22) and
> endTime:1508688000000(2017-10-23)， but the actual time of building the cube
> is 1 day ahead of schedule (actually 8 hours ahead of schedule)
> =》【2017-10-21~2017-10-22】，But using kylinUI build without question, the
> actual view kylin code, found that is because the kylin on the server side
> source code for configuration of GMT rather than use the timezone of fixed
> GMT + 8, and front-end UI will according to the configuration of the timezone
> is transformed to the time of the page to add GMT + 8 time, then the back-end
> to GMT + 8 time in into GMT time, so the kylinUI cube build time without
> error, and using restAPI build cube time not making timezone 8 hours is not
> accurate time difference problem。
> *for code:*
> kylinProperties.js
> this.getTimeZone = function () {
> if (!this.timezone) {
> this.timezone = this.getProperty("kylin.rest.timezone").trim();
> }
> return this.timezone;
> }
> org.apache.kylin.cube.CubeSegment
> public static String makeSegmentName(long startDate, long endDate, long
> startOffset, long endOffset) {
> if (startOffset != 0 || endOffset != 0) {
> if (startOffset == 0 && (endOffset == 0 || endOffset ==
> Long.MAX_VALUE)) {
> return "FULL_BUILD";
> }
> return startOffset + "_" + endOffset;
> }
> // using time
> SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");
> dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
> return dateFormat.format(startDate) + "_" + dateFormat.format(endDate);
> }
> org.apache.kylin.common.util.DateFormat:
> public static FastDateFormat getDateFormat(String datePattern) {
> FastDateFormat r = formatMap.get(datePattern);
> if (r == null) {
> r = FastDateFormat.getInstance(datePattern,
> TimeZone.getTimeZone("GMT")); // NOTE: this must be GMT to calculate epoch
> date correctly
> formatMap.put(datePattern, r);
> }
> return r;
> }
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