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Posted to dev@lucene.apache.org by "Shalin Shekhar Mangar (JIRA)" <ji...@apache.org> on 2018/01/26 21:30:00 UTC
[jira] [Commented] (SOLR-11066) Implement a scheduled trigger
[ https://issues.apache.org/jira/browse/SOLR-11066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16341625#comment-16341625 ]
Shalin Shekhar Mangar commented on SOLR-11066:
----------------------------------------------
This patch is a first cut of the feature. Integration tests are still pending. The configuration of the trigger supports the following parameter:
{code}
{
"name": "scheduled_trigger_1",
"type": "scheduled",
"startTime": "2018-01-26T21:00:00",
"every": "+1DAY",
"graceTime": "60000"
}
{code}
# {{startTime}} is a date in the format {{yyyy-MM-dd'T'HH:mm:ss}}. If not specified then it will default to the trigger's creation time.
# {{every}} is a string which follows Solr's date math parser syntax e.g. {{+1DAY}}, {{+12HOURS}} etc. (note date math supports subtraction but using such expression will ensure that the trigger never produces an event
# {{graceTime}} is the number of milliseconds after the next scheduled time within which the trigger will fire an event (if it was not able to fire at the exact right time). It defaults to 15 minutes.
The trigger itself is quite simple. It applies the {{every}} date match expression on the {{startTime}} or the last fire time to derive the next scheduled time and if current time is greater than next scheduled time but within {{graceTime}} milliseconds then an event is generated.
> Implement a scheduled trigger
> -----------------------------
>
> Key: SOLR-11066
> URL: https://issues.apache.org/jira/browse/SOLR-11066
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling, SolrCloud
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Priority: Major
> Fix For: master (8.0), 7.3
>
> Attachments: SOLR-11066.patch
>
>
> Implement a trigger that runs on a fixed interval say every 1 hour or every 24 hours starting at midnight etc.
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