Getting Error 502,{"ok":false,"message":"backend closed connection"} for enriching fields to another index

Hi,

I have two index 1.ther 2.part.
"ther" index has 24 fields, ''part" index has 19 fields. I have to enrich "ther" index with "part" index fields.

Field "user_id" is common between two indexes. Using enrich process I tried creating 3 rd index "part_ther"

get ther/_search
{
        "_index" : "ther",
        "_type" : "_doc",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "Ahi" : 42.6,
          "Index" : 90,
          "ipapPressureAverage" : 49,
          "MinuteVentAverage" : 20,
          "DeviceSerialNumber" : "<>",
          "ClearAirwayApneaIndex" : 72.26135463,
          "PeriodicBreathingTime" : 9311,
          "cpapPressure90Pct" : 22,
          "epapPressureAverage" : 73,
          "ipapPressure90Pct" : 27,
          "Usage" : 93904,
          "epapPressure90Pct" : 10,
          "AverageBreathRate" : 65,
          "@timestamp" : "2021-08-29T00:00:00.000+05:30",
          "user_id" : "39,476",
          "TrigBreathsPct" : 93,
          "cpapPressureAverage" : 29,
          "AverageExhaledTidalVolume" : 20,
          "DayStorageDate" : "29-08-2021",
          "UnintendedLeakageAverage" : 67.58
        }
{
        "_index" : "part",
        "_type" : "_doc",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "email" : "<>",
          "program_id" : 1849,
          "program_name" : "<> ",
          "scheduled_program_id" : 4765,
          "scheduled_program_name" : "<>",
          "scheduled_program_status" : 0,
          "experience_id" : 10129,
          "experience_name" : "<>",
          "response_id" : 364482,
          "user_id" : 39476,
          "firing_time" : "2021-09-19T09:28:51.000-04:00",
          "opened_at" : null,
          "participation_percentage" : 0,
          "status" : "<>",
          "created_at" : "2021-09-18T12:26:02.455-04:00",
          "updated_at" : "2021-09-19T09:30:04.228-04:00",
          "last_frame_completed_id" : null,
          "realm" : "affective-part-364482",
          "realms_organization_ids" : [
            "<>"
          ]
        }
      }

Using enrich process I tried creating 3 rd index "ther-part" so that all fields from "ther" index got enriched with "part" index.

Steps-

PUT /_enrich/policy/ther-policy
{
  "match": {
    "indices": "ther",
    "match_field": "user_id",
    "enrich_fields": ["Ahi","AverageBreatheRate","AverageExhaledTidalVolume","ClearAirwayApneaIndex","cpapPressureAverage","cpapPressure90Pct","DayStorageDate","epapPressureAverage","epapPressure90Pct","ipapPressureAverage","ipapPressure90Pct","MinuteVentAverage","PeriodicBreathingTime","TrigBreathsPct","UnintendedLeakageAverage","Usage","DeviceSerialNumber"]
  }
}
*****
Output-
{
  "acknowledged" : true
}

*************

POST /_enrich/policy/ther-policy/_execute
Output-
{
  "status" : {
    "phase" : "COMPLETE"
  }
}

*************************
PUT /_ingest/pipeline/ther_lookup
{
  "description" : "Enriching user details with tracks",
  "processors" : [
    {
      "enrich" : {
        "policy_name": "ther-policy",
        "field" : "user_id",
        "target_field": "tmp",
        "max_matches": "1"
      }
    },
    {
      "script": {
        "if": "ctx.tmp != null",
        "source": "ctx.putAll(ctx.tmp); ctx.remove('tmp');"
      }
    }
   ]
}
Output-
{
  "acknowledged" : true
}
**************************

POST _reindex
{
  "source": {
    "index": "part"
  },
  "dest": {
    "index": "part_ther",
    "pipeline": "ther_lookup"
    
  }
}

Fields are getting enriched in part_ther index. Index "part" and "ther" has only 2 docs as I am testing the enrichment processor.

get part_ther/_search
{
  "_index": "part_ther",
  "_type": "_doc",
  "_id": "1",
  "_score": 1,
  "_source": {
    "Ahi": 42.6,
    "response_id": 364482,
    "program_id": 1849,
    "program_name": "<> ",
    "created_at": "2021-09-18T12:26:02.455-04:00",
    "ipapPressureAverage": 49,
    "MinuteVentAverage": 20,
    "DeviceSerialNumber": "<>",
    "scheduled_program_id": 4765,
    "experience_id": 10129,
    "ClearAirwayApneaIndex": 72.26135463,
    "PeriodicBreathingTime": 9311,
    "updated_at": "2021-09-19T09:30:04.228-04:00",
    "scheduled_program_status": 0,
    "cpapPressure90Pct": 22,
    "email": "<>",
    "epapPressureAverage": 73,
    "ipapPressure90Pct": 27,
    "last_frame_completed_id": null,
    "Usage": 93904,
    "participation_percentage": 0,
    "epapPressure90Pct": 10,
    "firing_time": "2021-09-19T09:28:51.000-04:00",
    "opened_at": null,
    "realms_organization_ids": [
      "<>"
    ],
    "user_id": "39476",
    "scheduled_program_name": "<>",
    "TrigBreathsPct": 93,
    "cpapPressureAverage": 29,
    "experience_name": "<>",
    "AverageExhaledTidalVolume": 20,
    "DayStorageDate": "29-08-2021",
    "realm": "<>",
    "UnintendedLeakageAverage": 67.58,
    "status": "<>"
  }

In Original Index "therapy" index has 9k docs and "participation index" has 80k docs.

When I am trying to create third index on original indices, I am getting errors.
Error 502, {"ok":false,"message":"backend closed connection"}
How can I avoid this error and enrich indices successfully.

POST _reindex
{
  "source": {
    "index": "-participation"
  },
  "dest": {
    "index": "data-participation-therapy1",
    "pipeline": "therapy_lookup"
  }
}

output-
{"ok":false,"message":"backend closed connection"}

Is there anything in your Elasticsearch logs?
What version are you on?

Hi,
No other fields are present in elasticsearch logs.
Version is 7.14

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.