Details
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Bug
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Resolution: Fixed
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Major
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7.0.1, 7.1.0
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Untriaged
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1
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Unknown
Description
Build: 7.0.1 build 5979
Create a 3 node cluster with services kv, search, query+search
Load travel-sample
Create below 2 indexes:
Index test - dynamic index with keyword analyzer
{
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"type": "fulltext-index",
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"name": "test",
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"uuid": "2561e32b7aac5dac",
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"sourceType": "gocbcore",
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"sourceName": "travel-sample",
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"sourceUUID": "5c59f3f94f2bfc1533e1ca9cba6b5a37",
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"planParams": {
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"maxPartitionsPerPIndex": 41,
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"indexPartitions": 25
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},
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"params": {
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"doc_config": {
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"docid_prefix_delim": "",
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"docid_regexp": "",
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"mode": "type_field",
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"type_field": "type"
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},
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"mapping": {
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"analysis": {},
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"default_analyzer": "keyword",
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"default_datetime_parser": "dateTimeOptional",
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"default_field": "_all",
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"default_mapping": {
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"dynamic": true,
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"enabled": true
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},
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"default_type": "_default",
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"docvalues_dynamic": false,
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"index_dynamic": true,
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"store_dynamic": false,
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"type_field": "_type"
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},
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"store": {
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"indexType": "scorch",
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"segmentVersion": 15
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}
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},
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"sourceParams": {}
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}
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index test1 - default mapping index with country field
{
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"type": "fulltext-index",
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"name": "test1",
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"uuid": "1e1e53f55e42b0cc",
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"sourceType": "gocbcore",
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"sourceName": "travel-sample",
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"sourceUUID": "5c59f3f94f2bfc1533e1ca9cba6b5a37",
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"planParams": {
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"maxPartitionsPerPIndex": 52,
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"indexPartitions": 20
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},
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"params": {
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"doc_config": {
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"docid_prefix_delim": "",
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"docid_regexp": "",
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"mode": "type_field",
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"type_field": "type"
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},
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"mapping": {
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"analysis": {},
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"default_analyzer": "standard",
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"default_datetime_parser": "dateTimeOptional",
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"default_field": "_all",
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"default_mapping": {
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"dynamic": false,
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"enabled": true,
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"properties": {
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"country": {
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"dynamic": false,
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"enabled": true,
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"fields": [
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{
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"analyzer": "keyword",
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"docvalues": true,
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"include_in_all": true,
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"include_term_vectors": true,
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"index": true,
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"name": "country",
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"store": true,
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"type": "text"
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}
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]
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}
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}
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},
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"default_type": "_default",
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"docvalues_dynamic": false,
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"index_dynamic": true,
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"store_dynamic": false,
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"type_field": "_type"
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},
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"store": {
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"indexType": "scorch",
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"segmentVersion": 15
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}
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},
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"sourceParams": {}
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}
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Running below query in loop:
select meta().id from `travel-sample` USE INDEX(USING FTS) where country = "United States"
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Query does not use optimal index:test1 all the time. From the query logs:
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_time=2021-08-03T09:17:26.221-07:00 _level=INFO _msg=response_handler: n1fty[test1/travel-sample-1628007446179549017] "ac19653e-6b23-4e2b-ad88-bbe54947fafd" finished backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069682226990
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_time=2021-08-03T09:17:26.338-07:00 _level=INFO _msg=response_handler: buffer overflow [cap 512 len 469], initiating backfill
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_time=2021-08-03T09:17:26.338-07:00 _level=INFO _msg=response_handler: n1fty[test1/travel-sample-1628007446331090724] "4d5cf1a2-1c44-402c-876b-ae3ead2aa02a" started backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069131306165
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_time=2021-08-03T09:17:26.374-07:00 _level=INFO _msg=response_handler: n1fty[test1/travel-sample-1628007446331090724] "4d5cf1a2-1c44-402c-876b-ae3ead2aa02a" finished backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069131306165
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_time=2021-08-03T09:17:26.489-07:00 _level=INFO _msg=response_handler: buffer overflow [cap 512 len 460], initiating backfill
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_time=2021-08-03T09:17:26.489-07:00 _level=INFO _msg=response_handler: n1fty[test/travel-sample-1628007446485374741] "8ef31746-58ce-471a-ac7a-d1af731e5434" started backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069155477136
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_time=2021-08-03T09:17:26.528-07:00 _level=INFO _msg=response_handler: n1fty[test/travel-sample-1628007446485374741] "8ef31746-58ce-471a-ac7a-d1af731e5434" finished backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069155477136
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_time=2021-08-03T09:17:26.632-07:00 _level=INFO _msg=response_handler: buffer overflow [cap 512 len 435], initiating backfill
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_time=2021-08-03T09:17:26.632-07:00 _level=INFO _msg=response_handler: n1fty[test1/travel-sample-1628007446629089465] "2784d46d-4270-412e-a283-b04a1d90071e" started backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069087351983
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_time=2021-08-03T09:17:26.673-07:00 _level=INFO _msg=response_handler: n1fty[test1/travel-sample-1628007446629089465] "2784d46d-4270-412e-a283-b04a1d90071e" finished backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069087351983
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_time=2021-08-03T09:17:26.775-07:00 _level=INFO _msg=response_handler: buffer overflow [cap 512 len 504], initiating backfill
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_time=2021-08-03T09:17:26.776-07:00 _level=INFO _msg=response_handler: n1fty[test/travel-sample-1628007446771336963] "39fcffb7-4677-45cd-9df2-7706e8baa95d" started backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069419569730
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_time=2021-08-03T09:17:26.818-07:00 _level=INFO _msg=response_handler: n1fty[test/travel-sample-1628007446771336963] "39fcffb7-4677-45cd-9df2-7706e8baa95d" finished backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069419569730
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_time=2021-08-03T09:17:26.928-07:00 _level=INFO _msg=response_handler: buffer overflow [cap 512 len 462], initiating backfill
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_time=2021-08-03T09:17:26.928-07:00 _level=INFO _msg=response_handler: n1fty[test1/travel-sample-1628007446924323490] "414575de-0fe0-4321-a4da-a886c54401ae" started backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069535600313
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_time=2021-08-03T09:17:26.968-07:00 _level=INFO _msg=response_handler: n1fty[test1/travel-sample-1628007446924323490] "414575de-0fe0-4321-a4da-a886c54401ae" finished backfill for /opt/couchbase/var/lib/couchbase/tmp/search-results106069535600313
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Logs:
https://cb-jira.s3.us-east-2.amazonaws.com/logs/test/collectinfo-2021-08-03T161925-ns_1%40172.23.96.141.zip
https://cb-jira.s3.us-east-2.amazonaws.com/logs/test/collectinfo-2021-08-03T161925-ns_1%40172.23.97.211.zip
https://cb-jira.s3.us-east-2.amazonaws.com/logs/test/collectinfo-2021-08-03T161925-ns_1%40172.23.97.212.zip