[jira] [Created] (SOLR-14122) SimUtils incorrectly converts v2 to v1 request params

["Andrzej Bialecki (Jira)" <ji...@apache.org>]

Andrzej Bialecki created SOLR-14122:
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             Summary: SimUtils incorrectly converts v2 to v1 request params
                 Key: SOLR-14122
                 URL: https://issues.apache.org/jira/browse/SOLR-14122
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
    Affects Versions: 8.3
            Reporter: Andrzej Bialecki
            Assignee: Andrzej Bialecki
             Fix For: 8.5


As reported by Li Cao on the mailing list:
{quote}I am using solr 8.3.0 in cloud mode. I have collection level autoscaling policy and the collection name is “entity”. But when I run autoscaling simulation all the steps failed with this message:

      "error":{
        "exception":"java.io.IOException: java.util.concurrent.ExecutionException: org.apache.solr.common.SolrException: org.apache.solr.common.SolrException: Could not find collection : entity/shards",
        "suggestion":{
          "type":"repair",
          "operation":{
            "method":"POST",
            "path":"/c/entity/shards",
            "command":{"add-replica":{
                "shard":"shard2",
                "node":"my_node:8983_solr",
                "type":"TLOG"}}}},
        "replicaInfo":null}}},{quote}
The simulation package internally uses v1 APIs but the requests created by the autoscaling framework may use v2 APIs. The utility class {{SimUtils}} converts v2 request parameters to v1 parameters, without actually using the apispec or v2 Api handlers (as that would mean adding more complexity to the simulator, and only tangentially related to the autoscaling).

There's a bug in this utility when converting the path of the request - V2 apispec uses {{/c/\{collection}/shards}} when manipulating shards and replicas - unlike V1 which uniformly uses {{/collections}}. The utility class doesn't account for this path difference and creates invalid collection names.



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