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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (SOLR-11722) API to create a Time Routed Alias and first collection
Date Thu, 11 Jan 2018 21:33:00 GMT


ASF GitHub Bot commented on SOLR-11722:

Github user dsmiley commented on a diff in the pull request:
    --- Diff: solr/core/src/java/org/apache/solr/cloud/ ---
    @@ -30,13 +44,101 @@
     import org.apache.solr.common.util.NamedList;
     import org.apache.solr.common.util.StrUtils;
    +import org.apache.solr.update.processor.TimeRoutedAliasUpdateProcessor;
    +import org.apache.solr.util.DateMathParser;
    +import org.apache.solr.util.TimeZoneUtils;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +import static java.time.format.DateTimeFormatter.ISO_INSTANT;
    +import static;
    +import static org.apache.solr.common.SolrException.ErrorCode.BAD_REQUEST;
     import static org.apache.solr.common.params.CommonParams.NAME;
    +import static org.apache.solr.common.params.CommonParams.TZ;
    +import static org.apache.solr.handler.admin.CollectionsHandler.ROUTED_ALIAS_COLLECTION_PROP_PFX;
    +import static org.apache.solr.update.processor.TimeRoutedAliasUpdateProcessor.DATE_TIME_FORMATTER;
     public class CreateAliasCmd implements Cmd {
    +  private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
    +  public static final String ROUTING_TYPE = "";
    +  public static final String ROUTING_FIELD = "router.field";
    +  public static final String ROUTING_INCREMENT = "router.interval";
    +  public static final String ROUTING_MAX_FUTURE = "router.max-future-ms";
    +  public static final String START = "start";
    +  // Collection constants should all reflect names in the v2 structured input for this
command, not v1
    +  // names used for CREATE
    +  public static final String CREATE_COLLECTION_CONFIG = "create-collection.config";
    --- End diff --
    Ugh, all those CREATE_COLLECTION_* constants are a maintenance burden; surely we can avoid
them?  I really want to avoid double-specificity of the collection-creation stuff in any shape
or form (not in docs/constants/etc.)

> API to create a Time Routed Alias and first collection
> ------------------------------------------------------
>                 Key: SOLR-11722
>                 URL:
>             Project: Solr
>          Issue Type: Sub-task
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: SolrCloud
>            Reporter: David Smiley
>         Attachments: SOLR-11722.patch, SOLR-11722.patch
> This issue is about creating a single API command to create a "Time Routed Alias" along
with its first collection.  Need to decide what endpoint URL it is and parameters.
> Perhaps in v2 it'd be {{/api/collections?command=create-routed-alias}} or alternatively
piggy-back off of command=create-alias but we add more options, perhaps with a prefix like
> Inputs:
> * alias name
> * misc collection creation metadata (e.g. config, numShards, ...) perhaps in this context
with a prefix like "collection."
> * metadata for TimeRoutedAliasUpdateProcessor, currently: router.field
> * date specifier for first collection; can include "date math".
> We'll certainly add more options as future features unfold.
> I believe the collection needs to be created first (referring to the alias name via a
core property), and then the alias pointing to it which demands collections exist first. 
When figuring the collection name, you'll need to reference the format in TimeRoutedAliasUpdateProcessor.

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