# Elasticsearch Query cache shows no data **URL:** \ **Category:** Elasticsearch\ **Created:** [June 18, 2023, 4:21pm UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306 "2023-06-18T16:21:28Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![mhr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mhr/32/119834_2.png) [@mhr](https://discuss.elastic.co/u/mhr)\ **Post date:** [June 18, 2023, 4:21pm UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/1 "2023-06-18T16:21:28Z")
The problem we are facing is that query cache is not being used at all in our ES cluster except version 7.8.1. We are using ES version 7.8.1 and we see data in Query Cache as show below. ![image](https://us1.discourse-cdn.com/elastic/original/3X/3/c/3c5ba781a8fbdc23a3eba173c7a1708eb26e5b89.jpeg) After upgrading to ES version 7.17.10 , we do not see data in Query Cache. ![image](https://us1.discourse-cdn.com/elastic/original/3X/e/e/ee741aefa1b5aa7e5c5045ca0d742bfcf7829a58.png) ---
**Author:** ![DineshNaik](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dineshnaik/32/89308_2.png) [@DineshNaik](https://discuss.elastic.co/u/DineshNaik)\ **Post date:** [June 19, 2023, 9:12pm UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/2 "2023-06-19T21:12:58Z")
Do you have same data size in both clusters ? The cache utilisation would depend on how much data you have in your indices and how your cache settings are. Can you share the data size between two clusters ? ---
**Author:** ![mhr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mhr/32/119834_2.png) [@mhr](https://discuss.elastic.co/u/mhr)\ **Post date:** [June 20, 2023, 4:56am UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/3 "2023-06-20T04:56:00Z")
Both the ES cluster has the same data size and document count. Data size: 183GB Document count : 460960715 ---
**Author:** ![DineshNaik](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dineshnaik/32/89308_2.png) [@DineshNaik](https://discuss.elastic.co/u/DineshNaik)\ **Post date:** [June 21, 2023, 7:45pm UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/4 "2023-06-21T19:45:51Z")
Could you please share the output of below api's ? ```auto GET /_nodes/stats/indices/fielddata GET /_nodes/stats/indices/query_cache GET /_nodes/stats/indices/request_cache ``` What is the heap size for your data nodes ? Please share these details for both the clusters! ---
**Author:** ![DineshNaik](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dineshnaik/32/89308_2.png) [@DineshNaik](https://discuss.elastic.co/u/DineshNaik)\ **Post date:** [June 21, 2023, 9:40pm UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/5 "2023-06-21T21:40:16Z")
Also share the output of GET /\_cluster/stats ---
**Author:** ![mhr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mhr/32/119834_2.png) [@mhr](https://discuss.elastic.co/u/mhr)\ **Post date:** [June 23, 2023, 5:29am UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/6 "2023-06-23T05:29:30Z")
ES Version 7.17.10 Version Heap size 32GB GET /\_nodes/stats/indices/fielddata { "\_nodes" : { "total" : 13, "successful" : 13, "failed" : 0 }, "cluster\_name" : "abc", "nodes" : { "Z4dmw8R1Sdas8JdXZ-s77g" : { "timestamp" : 1687496935598, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 11048, "evictions" : 0 } } }, "mlJ\_WFNyQ6Gcvj1jhMIGXA" : { "timestamp" : 1687496935597, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "master" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0 } } }, "I6WEDgBaTBeKR5dnjfEKQw" : { "timestamp" : 1687496935597, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 7744, "evictions" : 0 } } }, "pvVa34W-SI6nno1m4teVhA" : { "timestamp" : 1687496935597, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 5632, "evictions" : 0 } } }, "WR1l1h3fRtGnklJnb-\_NyQ" : { "timestamp" : 1687496935596, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0 } } }, "j6XoThHLSsaLg6280ciwmA" : { "timestamp" : 1687496935604, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0 } } }, "LGYwB6YTRTW7rGVa5KXGqA" : { "timestamp" : 1687496935602, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 7792, "evictions" : 0 } } }, "Dy8vbNJqSfKEav2\_k47juQ" : { "timestamp" : 1687496935598, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "ingest" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0 } } }, "BUFcS\_ORQEaA90Gjl-RUSw" : { "timestamp" : 1687496935598, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "ingest" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 0, 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"timestamp" : 1687496935596, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "fielddata" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0 } } } } } GET /\_nodes/stats/indices/query\_cache { "\_nodes" : { "total" : 13, "successful" : 13, "failed" : 0 }, "cluster\_name" : "abc", "nodes" : { "Z4dmw8R1Sdas8JdXZ-s77g" : { "timestamp" : 1687496981520, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 11734800, "total\_count" : 5018258, "hit\_count" : 291204, "miss\_count" : 4727054, "cache\_size" : 624, "cache\_count" : 80779, "evictions" : 80155 } } }, "mlJ\_WFNyQ6Gcvj1jhMIGXA" : { "timestamp" : 1687496981519, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "master" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 0, "total\_count" : 0, "hit\_count" : 0, "miss\_count" : 0, "cache\_size" : 0, "cache\_count" : 0, "evictions" : 0 } } }, "I6WEDgBaTBeKR5dnjfEKQw" : { "timestamp" : 1687496981519, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 11599671, "total\_count" : 11008943, "hit\_count" : 598070, "miss\_count" : 10410873, "cache\_size" : 736, "cache\_count" : 80709, "evictions" : 79973 } } }, "pvVa34W-SI6nno1m4teVhA" : { "timestamp" : 1687496981519, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 2670255, "total\_count" : 3800405, "hit\_count" : 87381, "miss\_count" : 3713024, "cache\_size" : 990, "cache\_count" : 3275, "evictions" : 2285 } } }, "WR1l1h3fRtGnklJnb-\_NyQ" : { "timestamp" : 1687496981518, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 0, "total\_count" : 0, "hit\_count" : 0, "miss\_count" : 0, "cache\_size" : 0, "cache\_count" : 0, "evictions" : 0 } } }, "j6XoThHLSsaLg6280ciwmA" : { "timestamp" : 1687496981526, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 0, "total\_count" : 0, "hit\_count" : 0, "miss\_count" : 0, "cache\_size" : 0, "cache\_count" : 0, "evictions" : 0 } } }, "LGYwB6YTRTW7rGVa5KXGqA" : { "timestamp" : 1687496981524, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 2745201, "total\_count" : 7495843, "hit\_count" : 208548, "miss\_count" : 7287295, "cache\_size" : 733, "cache\_count" : 8641, "evictions" : 7908 } } }, "Dy8vbNJqSfKEav2\_k47juQ" : { "timestamp" : 1687496981520, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "ingest" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 0, "total\_count" : 0, "hit\_count" : 0, "miss\_count" : 0, "cache\_size" : 0, "cache\_count" : 0, "evictions" : 0 } } }, "BUFcS\_ORQEaA90Gjl-RUSw" : { "timestamp" : 1687496981520, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : 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"memory\_size\_in\_bytes" : 0, "total\_count" : 0, "hit\_count" : 0, "miss\_count" : 0, "cache\_size" : 0, "cache\_count" : 0, "evictions" : 0 } } }, "kX6zKD-3S6GjXxm6n5VOSg" : { "timestamp" : 1687496981520, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "master" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 0, "total\_count" : 0, "hit\_count" : 0, "miss\_count" : 0, "cache\_size" : 0, "cache\_count" : 0, "evictions" : 0 } } }, "FbNrp1YLQR2ufGFB1dT0ag" : { "timestamp" : 1687496981518, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "query\_cache" : { "memory\_size\_in\_bytes" : 0, "total\_count" : 0, "hit\_count" : 0, "miss\_count" : 0, "cache\_size" : 0, "cache\_count" : 0, "evictions" : 0 } } } } } GET /\_nodes/stats/indices/request\_cache { "\_nodes" : { "total" : 13, "successful" : 13, "failed" : 0 }, "cluster\_name" : "abc", "nodes" : { "Z4dmw8R1Sdas8JdXZ-s77g" : { "timestamp" : 1687496998360, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 3074032, "evictions" : 0, "hit\_count" : 184380, "miss\_count" : 147386 } } }, "mlJ\_WFNyQ6Gcvj1jhMIGXA" : { "timestamp" : 1687496998359, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "master" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } }, "I6WEDgBaTBeKR5dnjfEKQw" : { "timestamp" : 1687496998359, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 1311784, "evictions" : 0, "hit\_count" : 115962, "miss\_count" : 151445 } } }, "pvVa34W-SI6nno1m4teVhA" : { "timestamp" : 1687496998359, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 5698520, "evictions" : 0, "hit\_count" : 381786, "miss\_count" : 53443 } } }, "WR1l1h3fRtGnklJnb-\_NyQ" : { "timestamp" : 1687496998358, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } }, "j6XoThHLSsaLg6280ciwmA" : { "timestamp" : 1687496998365, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } }, "LGYwB6YTRTW7rGVa5KXGqA" : { "timestamp" : 1687496998364, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 2258072, "evictions" : 0, "hit\_count" : 212953, "miss\_count" : 35016 } } }, "Dy8vbNJqSfKEav2\_k47juQ" : { "timestamp" : 1687496998360, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "ingest" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } }, "BUFcS\_ORQEaA90Gjl-RUSw" : { "timestamp" : 1687496998359, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "ingest" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } }, "aTN8lZOjTmibeel7p134ug" : { "timestamp" : 1687496998361, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "data" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 3316112, "evictions" : 0, "hit\_count" : 168049, "miss\_count" : 63454 } } }, "Dz7RagFYQfK1qyX1eqja0w" : { "timestamp" : 1687496998358, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "master" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } }, "kX6zKD-3S6GjXxm6n5VOSg" : { "timestamp" : 1687496998360, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : [ "master" ], "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } }, "FbNrp1YLQR2ufGFB1dT0ag" : { "timestamp" : 1687496998358, "name" : "", "transport\_address" : ":9300", "host" : "", "ip" : ":9300", "roles" : , "attributes" : { "xpack.installed" : "true", "transform.node" : "false" }, "indices" : { "request\_cache" : { "memory\_size\_in\_bytes" : 0, "evictions" : 0, "hit\_count" : 0, "miss\_count" : 0 } } } } } GET /\_cluster/stats { "\_nodes" : { "total" : 13, "successful" : 13, "failed" : 0 }, "cluster\_name" : "abc", "cluster\_uuid" : "UBp8\_hUuR52ErovfyyzsIw", "timestamp" : 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**Author:** ![mhr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mhr/32/119834_2.png) [@mhr](https://discuss.elastic.co/u/mhr)\ **Post date:** [June 23, 2023, 5:39am UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/7 "2023-06-23T05:39:42Z")
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"miss\_count" : 11706333177 } } } } } ######################################### GET \_cluster/stats ########################################### { "\_nodes" : { "total" : 12, "successful" : 12, "failed" : 0 }, "cluster\_name" : "Elastic\_readnew1", "cluster\_uuid" : "lBXhoYY-S3SvkG6Alr8izQ", "timestamp" : 1687498369525, "status" : "green", "indices" : { "count" : 38, "shards" : { "total" : 137, "primaries" : 57, "replication" : 1.4035087719298245, "index" : { "shards" : { "min" : 2, "max" : 27, "avg" : 3.6052631578947367 }, "primaries" : { "min" : 1, "max" : 9, "avg" : 1.5 }, "replication" : { "min" : 1.0, "max" : 2.0, "avg" : 1.105263157894737 } } }, "docs" : { "count" : 468315679, "deleted" : 97435692 }, "store" : { "size\_in\_bytes" : 204793083966 }, "fielddata" : { "memory\_size\_in\_bytes" : 65160, "evictions" : 0 }, "query\_cache" : { "memory\_size\_in\_bytes" : 41137454880, "total\_count" : 1824153679282, "hit\_count" : 141226232710, "miss\_count" : 1682927446572, "cache\_size" : 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"packaging\_types" : [ { "flavor" : "default", "type" : "tar", "count" : 12 } ], "ingest" : { "number\_of\_pipelines" : 2, "processor\_stats" : { "gsub" : { "count" : 0, "failed" : 0, "current" : 0, "time\_in\_millis" : 0 }, "script" : { "count" : 0, "failed" : 0, "current" : 0, "time\_in\_millis" : 0 } } } } } ########################################### ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 23, 2023, 5:39am UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/8 "2023-06-23T05:39:42Z")
Version 7.8.1 is [EOL](https://www.elastic.co/support/eol) and no longer supported. Please upgrade ASAP. (This is an automated response from your friendly Elastic bot. Please report this post if you have any suggestions or concerns :elasticheart: ) ---
**Author:** ![mhr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mhr/32/119834_2.png) [@mhr](https://discuss.elastic.co/u/mhr)\ **Post date:** [June 30, 2023, 1:08am UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/9 "2023-06-30T01:08:42Z")
After upgrading to ES version 7.17.10 . we do not see data in Query Cache. ![image](https://us1.discourse-cdn.com/elastic/original/3X/0/c/0c3e78af98140f86ed04564d3672883f254eaac9.png) ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 28, 2023, 1:08am UTC](https://discuss.elastic.co/t/elasticsearch-query-cache-shows-no-data/336306/10 "2023-07-28T01:08:45Z")
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