# Elasticsearch

**URL:** https://discuss.elastic.co/c/elastic-stack/elasticsearch/6.md?page=12

[Latest](https://discuss.elastic.co/latest.md) · [Categories](https://discuss.elastic.co/categories.md) · [Tags](https://discuss.elastic.co/tags.md)

**Page:** 13

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## [Collector \[cluster\_stats\] timed out when collecting data](https://discuss.elastic.co/t/collector-cluster-stats-timed-out-when-collecting-data/383847)

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**Author:** [@zahojianxin](https://discuss.elastic.co/u/zahojianxin)\
**Replies:** 1\
**Last updated:** [December 3, 2025, 7:12pm UTC](https://discuss.elastic.co/t/collector-cluster-stats-timed-out-when-collecting-data/383847 "2025-12-03T19:12:28Z")

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\[2025-12-03T12:21:35,854\]\[ERROR\]\[o.e.x.m.c.c.ClusterStatsCollector\] \[YZH-SC-ILMS-ES1\] collector \[cluster\_stats\] timed out when collecting data \[2025-12-03T12:21:57,037\]\[ERROR\]\[o.e.x.m.c.c.ClusterStatsCollector\] \[YZH-SC-…

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## [Recommendations for LLM nodes sizing](https://discuss.elastic.co/t/recommendations-for-llm-nodes-sizing/383813)

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**Author:** [@michael-a](https://discuss.elastic.co/u/michael-a)\
**Replies:** 6\
**Last updated:** [December 3, 2025, 2:04pm UTC](https://discuss.elastic.co/t/recommendations-for-llm-nodes-sizing/383813 "2025-12-03T14:04:50Z")

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We’re about to implement our first LLM node (on Kubernetes) but haven’t been able to find current recommendations when it comes to sizing it. Are there any general rules we can apply based on number of events, log size e…

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## [Elasticsearch indexing\_pressure.memory.limit](https://discuss.elastic.co/t/elasticsearch-indexing-pressure-memory-limit/383670)

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**Author:** [@ee99](https://discuss.elastic.co/u/ee99)\
**Replies:** 15\
**Last updated:** [December 2, 2025, 2:04pm UTC](https://discuss.elastic.co/t/elasticsearch-indexing-pressure-memory-limit/383670 "2025-12-02T14:04:00Z")

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When I try to index large log files through bulk\_index, I notice got logs missing. Suspecting it could be due to the memory issue of the elasticsearch nodes. I tried to change the indexing\_pressure.memory.limit to 40%. B…

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## [Massive performance drop for certain queries in ES9 compared to ES8](https://discuss.elastic.co/t/massive-performance-drop-for-certain-queries-in-es9-compared-to-es8/383393)

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**Author:** [@msh](https://discuss.elastic.co/u/msh)\
**Replies:** 16\
**Last updated:** [December 2, 2025, 12:49pm UTC](https://discuss.elastic.co/t/massive-performance-drop-for-certain-queries-in-es9-compared-to-es8/383393 "2025-12-02T12:49:32Z")

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We discovered a massive performance drop after migration to ES 9 for certain queries with aggregations. Our mapping an be seen here: INGe/inge\_es\_connector/src/main/resources/es\_index\_items.json at spring6 · MPDL/INGe ·…

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## [ELSER v2 model inference crashing](https://discuss.elastic.co/t/elser-v2-model-inference-crashing/375317)

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**Author:** [@Bryan\_Warner](https://discuss.elastic.co/u/Bryan_Warner)\
**Replies:** 3\
**Last updated:** [December 2, 2025, 8:20am UTC](https://discuss.elastic.co/t/elser-v2-model-inference-crashing/375317 "2025-12-02T08:20:54Z")

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Hi Team, Before filing an issue, I was wondering if I could get some assistance in trying to test inference on the ELSER v2 model in case I am missing something in the docs Elasticsearch version: 8.17.2 ML Nodes: 1 I…

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## [Understanding how Elasticsearch segments, merges, and compacts its vector indexes](https://discuss.elastic.co/t/understanding-how-elasticsearch-segments-merges-and-compacts-its-vector-indexes/383796)

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**Author:** [@sfmqrb](https://discuss.elastic.co/u/sfmqrb)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 12:30am UTC](https://discuss.elastic.co/t/understanding-how-elasticsearch-segments-merges-and-compacts-its-vector-indexes/383796 "2025-12-02T00:30:01Z")

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In Elasticsearch’s vector indexing pipeline, how exactly do segmenting and segment compaction work? Specifically, what compaction policy does Elasticsearch follow for segments and their vector indexes, and during compact…

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## [ES 8.18.3 - ruby api: getting "\<Elastic::Transport::Transport::Error: Net::ReadTimeout with #\<TCPSocket:(closed)\>\>"](https://discuss.elastic.co/t/es-8-18-3-ruby-api-getting-elastic-net-readtimeout-with-tcpsocket-closed/383662)

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**Author:** [@Russell\_Fulton](https://discuss.elastic.co/u/Russell_Fulton)\
**Replies:** 2\
**Last updated:** [December 1, 2025, 9:35pm UTC](https://discuss.elastic.co/t/es-8-18-3-ruby-api-getting-elastic-net-readtimeout-with-tcpsocket-closed/383662 "2025-12-01T21:35:37Z")

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I have a ruby program that ingests data into ES (using bulk) I am seeing periodic failures on bulk uploads which raise exception \<Elastic::Transport::Transport::Error: Net::ReadTimeout with #\<TCPSocket:(closed)\>\> Thes…

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## [I want to use Elastic "Cloud Hosted" in Azure. Where infrastructure is hosted in Microsoft or Elastic Datacenter?](https://discuss.elastic.co/t/i-want-to-use-elastic-cloud-hosted-in-azure-where-infrastructure-is-hosted-in-microsoft-or-elastic-datacenter/383785)

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**Author:** [@Karol\_Leszczynski](https://discuss.elastic.co/u/Karol_Leszczynski)\
**Replies:** 1\
**Last updated:** [December 1, 2025, 2:58pm UTC](https://discuss.elastic.co/t/i-want-to-use-elastic-cloud-hosted-in-azure-where-infrastructure-is-hosted-in-microsoft-or-elastic-datacenter/383785 "2025-12-01T14:58:31Z")

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Hi, Sorry if this is a trivial question, but I can’t find a clear answer. My company wants to use Elasticsearch, and we have strict governance policies. If we choose the managed Elasticsearch offering from Azure, where …

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## [Minecraft 1.21.124 Bedrock Edition Android Problemas de ingesta de logs S3 en Elasticsearch](https://discuss.elastic.co/t/minecraft-1-21-124-bedrock-edition-android-problemas-de-ingesta-de-logs-s3-en-elasticsearch/383786)

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**Author:** [@padmakrishnadev](https://discuss.elastic.co/u/padmakrishnadev)\
**Replies:** 0\
**Last updated:** [December 1, 2025, 2:32pm UTC](https://discuss.elastic.co/t/minecraft-1-21-124-bedrock-edition-android-problemas-de-ingesta-de-logs-s3-en-elasticsearch/383786 "2025-12-01T14:32:40Z")

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Hola comunidad, estoy trabajando en un proyecto de análisis de datos para una aplicación móvil específica y me he encontrado con un problema de latencia y permisos al intentar indexar los logs de acceso desde AWS CloudFr…

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## [Problem with upgrading to 9.0.0, index compability](https://discuss.elastic.co/t/problem-with-upgrading-to-9-0-0-index-compability/377614)

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**Author:** [@mbooh](https://discuss.elastic.co/u/mbooh)\
**Replies:** 13\
**Last updated:** [December 1, 2025, 10:22am UTC](https://discuss.elastic.co/t/problem-with-upgrading-to-9-0-0-index-compability/377614 "2025-12-01T10:22:57Z")

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Hi! I'm trying to upgrade from 8.18 to 9.0 but I get a lot of these: \[2025-04-29T14:05:28,627\]\[ERROR\]\[o.e.b.Elasticsearch \] \[STHLM-KLARA-03\] fatal exception while booting Elasticsearch java.lang.IllegalStateExcept…

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## [Unexpected behavior when using match\_bool\_prefix with synonyms](https://discuss.elastic.co/t/unexpected-behavior-when-using-match-bool-prefix-with-synonyms/383755)

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**Author:** [@gs\_elastic](https://discuss.elastic.co/u/gs_elastic)\
**Replies:** 2\
**Last updated:** [December 1, 2025, 7:15am UTC](https://discuss.elastic.co/t/unexpected-behavior-when-using-match-bool-prefix-with-synonyms/383755 "2025-12-01T07:15:25Z")

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I'm experiencing unexpected behavior when using match\_bool\_prefix together with a synonym\_graph filter on the search analyzer. I found a similar topic previously asked: Prefix query not matching any documents — I used …

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## [Migrate system indices failure](https://discuss.elastic.co/t/migrate-system-indices-failure/383756)

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**Author:** [@kernelpanic](https://discuss.elastic.co/u/kernelpanic)\
**Replies:** 1\
**Last updated:** [November 28, 2025, 12:16pm UTC](https://discuss.elastic.co/t/migrate-system-indices-failure/383756 "2025-11-28T12:16:20Z")

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Hello, I’m trying to migrate the system indices in preparation for upgrade from 8.19 to 9.x, however it is failing, any idea why?

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## [Data Extraction Service (tika/openresty) crashes on second container start](https://discuss.elastic.co/t/data-extraction-service-tika-openresty-crashes-on-second-container-start/383519)

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**Author:** [@SPRINGPEACHVINH](https://discuss.elastic.co/u/SPRINGPEACHVINH)\
**Replies:** 2\
**Last updated:** [November 28, 2025, 8:50am UTC](https://discuss.elastic.co/t/data-extraction-service-tika-openresty-crashes-on-second-container-start/383519 "2025-11-28T08:50:38Z")

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Hi guys I’m encountering a repeatable issue with the data-extraction-service (0.3.5) when running it via Docker Compose. The service (tika + openresty inside the container) starts fine the first time I bring the stack …

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## [Cluster will not start after upgrade from 8.x to 9.x](https://discuss.elastic.co/t/cluster-will-not-start-after-upgrade-from-8-x-to-9-x/383690)

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**Author:** [@kernelpanic](https://discuss.elastic.co/u/kernelpanic)\
**Replies:** 19\
**Last updated:** [November 27, 2025, 5:03pm UTC](https://discuss.elastic.co/t/cluster-will-not-start-after-upgrade-from-8-x-to-9-x/383690 "2025-11-27T17:03:11Z")

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Hello all, I’ve upgraded from Elasticsearch 8.19 to 9.2.1. Since doing so none of the cluster nodes will start, the error message in the cluster log: java.lang.IllegalStateException: The index \[.reporting-2021-12-12/E…

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## [Force synchronous refresh](https://discuss.elastic.co/t/force-synchronous-refresh/383535)

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**Author:** [@Elastic04](https://discuss.elastic.co/u/Elastic04)\
**Replies:** 1\
**Last updated:** [November 27, 2025, 11:52am UTC](https://discuss.elastic.co/t/force-synchronous-refresh/383535 "2025-11-27T11:52:10Z")

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We have this part of code in indexing job. turn off refresh\_interval before indexing. (set refresh\_interval to 0 or -1 through kibana) After indexing is done, we to do manual refresh so that indexed products will b…

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## [Elastic Flush/fetch latency too high](https://discuss.elastic.co/t/elastic-flush-fetch-latency-too-high/383681)

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**Author:** [@richard2](https://discuss.elastic.co/u/richard2)\
**Replies:** 8\
**Last updated:** [November 27, 2025, 8:57am UTC](https://discuss.elastic.co/t/elastic-flush-fetch-latency-too-high/383681 "2025-11-27T08:57:14Z")

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Hello, from zabbix monitoring im getting a lot of notifications fetch/flush latency is too high. Are values within a margin or is it problem. In last 12 hours avg was 5000 ms max 34000ms Would changing durability to a…

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## [Low level commands using .NET client 8.13](https://discuss.elastic.co/t/low-level-commands-using-net-client-8-13/362717)

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**Author:** [@SoleusRex](https://discuss.elastic.co/u/SoleusRex)\
**Replies:** 5\
**Last updated:** [November 26, 2025, 6:26pm UTC](https://discuss.elastic.co/t/low-level-commands-using-net-client-8-13/362717 "2025-11-26T18:26:58Z")

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I'm working on a project where our index settings and mappings are maintained as JSON, and I'm wondering if there's a way for the current .NET client to use these to setup our indices. I've found older posts (example he…

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## [PII security with Elastic.Clients.Elasticsearch 9.2.1](https://discuss.elastic.co/t/pii-security-with-elastic-clients-elasticsearch-9-2-1/383609)

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**Author:** [@Davyd\_McColl](https://discuss.elastic.co/u/Davyd_McColl)\
**Replies:** 10\
**Last updated:** [November 26, 2025, 3:09pm UTC](https://discuss.elastic.co/t/pii-security-with-elastic-clients-elasticsearch-9-2-1/383609 "2025-11-26T15:09:06Z")

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Good day I’m not sure if I’m posting this in the right place, but here goes. I’m trying to implement an ES index with an object that has mainly numeric fields, and some text fields. I want to be able to search by any f…

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## [Guide to Start a single-node cluster in Docker](https://discuss.elastic.co/t/guide-to-start-a-single-node-cluster-in-docker/383560)

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**Author:** [@RobinSteil](https://discuss.elastic.co/u/RobinSteil)\
**Replies:** 5\
**Last updated:** [November 26, 2025, 11:08am UTC](https://discuss.elastic.co/t/guide-to-start-a-single-node-cluster-in-docker/383560 "2025-11-26T11:08:49Z")

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I found this: Start a single-node cluster in Docker | Elastic Docs but I am probably misunderstanding something. The container does not work. The guide never discovery.type to single-node which is necessary by my unders…

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## [Search is very slow in multilingual setup](https://discuss.elastic.co/t/search-is-very-slow-in-multilingual-setup/383666)

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**Author:** [@manohar\_chowdary](https://discuss.elastic.co/u/manohar_chowdary)\
**Replies:** 9\
**Last updated:** [November 26, 2025, 10:53am UTC](https://discuss.elastic.co/t/search-is-very-slow-in-multilingual-setup/383666 "2025-11-26T10:53:53Z")

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Hello, We currently have english, french, spanish and 7 other languages supported in search and search has become too slow now, even sometimes it timeout, one of bottle necks i think is to do with multilingual support ,…

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## [Probable Bug in HyperLogLogPlusPlus](https://discuss.elastic.co/t/probable-bug-in-hyperloglogplusplus/383620)

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**Author:** [@Aditya\_Teltia](https://discuss.elastic.co/u/Aditya_Teltia)\
**Replies:** 4\
**Last updated:** [November 26, 2025, 6:09am UTC](https://discuss.elastic.co/t/probable-bug-in-hyperloglogplusplus/383620 "2025-11-26T06:09:14Z")

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Hello everyone, Somehow I am facing an issue while running certain aggregation query when cardinality is high. The thread seems to be stuck at trace: "elasticsearch\[es-data-pz-listening4-es7-125-1b\]\[search\]\[T#12\]" #1…

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## [DC-DR setup of elasticsearch](https://discuss.elastic.co/t/dc-dr-setup-of-elasticsearch/383633)

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**Author:** [@Sahana15](https://discuss.elastic.co/u/Sahana15)\
**Replies:** 5\
**Last updated:** [November 25, 2025, 6:36pm UTC](https://discuss.elastic.co/t/dc-dr-setup-of-elasticsearch/383633 "2025-11-25T18:36:21Z")

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Hi Community, I have a few questions regarding a DC–DR setup for Elasticsearch, Kibana, and Logstash. Your insights would be greatly appreciated. We plan to configure Hot and Warm nodes in the primary DC. Can the same …

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## [Alternative to CAT shards API](https://discuss.elastic.co/t/alternative-to-cat-shards-api/383600)

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**Author:** [@pingo](https://discuss.elastic.co/u/pingo)\
**Replies:** 3\
**Last updated:** [November 25, 2025, 12:13pm UTC](https://discuss.elastic.co/t/alternative-to-cat-shards-api/383600 "2025-11-25T12:13:21Z")

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Hey! All of the CAT APIs come with this disclaimer: IMPORTANT: cat APIs are only intended for human consumption using the command line or Kibana console. They are not intended for use by applications. Is there an alt…

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## [Request for enhancement: Messages like "Authentication using apikey failed" need source IP address](https://discuss.elastic.co/t/request-for-enhancement-messages-like-authentication-using-apikey-failed-need-source-ip-address/383629)

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**Author:** [@rugenl](https://discuss.elastic.co/u/rugenl)\
**Replies:** 0\
**Last updated:** [November 24, 2025, 6:42pm UTC](https://discuss.elastic.co/t/request-for-enhancement-messages-like-authentication-using-apikey-failed-need-source-ip-address/383629 "2025-11-24T18:42:28Z")

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It’s difficult to find where these bad API keys are coming from. The only suggestion is to enable audit, which is overkill and uses a lot of resources logging 99% of the audit events that are good. If the x\_forwarded\_f…

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## [Unable to connect the logtash](https://discuss.elastic.co/t/unable-to-connect-the-logtash/383628)

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**Author:** [@Kyu\_Kazami](https://discuss.elastic.co/u/Kyu_Kazami)\
**Replies:** 0\
**Last updated:** [November 24, 2025, 6:38pm UTC](https://discuss.elastic.co/t/unable-to-connect-the-logtash/383628 "2025-11-24T18:38:35Z")

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Hi, im kinda new in this ELK Stack things, i’do have a problem with connectiong nginx to logstash =\> ES. the ELK stack is perfectly run but when im running the logstash to connect logstash and ES it just like this kyuka…

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## [What's the expected behaviour when a document is updated and deleted in the same bulk request?](https://discuss.elastic.co/t/whats-the-expected-behaviour-when-a-document-is-updated-and-deleted-in-the-same-bulk-request/383566)

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**Author:** [@js\_herbert](https://discuss.elastic.co/u/js_herbert)\
**Replies:** 2\
**Last updated:** [November 21, 2025, 5:29pm UTC](https://discuss.elastic.co/t/whats-the-expected-behaviour-when-a-document-is-updated-and-deleted-in-the-same-bulk-request/383566 "2025-11-21T17:29:26Z")

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Hi all, A quick question about bulk requests. We have some code that we suspect is occasionally including an index and a delete operation for the same document in the same bulk request. The order of the operations dicta…

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## [No of buckets creation for composite aggregation](https://discuss.elastic.co/t/no-of-buckets-creation-for-composite-aggregation/383350)

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**Author:** [@KrishnaVardhan\_Reddy](https://discuss.elastic.co/u/KrishnaVardhan_Reddy)\
**Replies:** 1\
**Last updated:** [November 21, 2025, 5:25pm UTC](https://discuss.elastic.co/t/no-of-buckets-creation-for-composite-aggregation/383350 "2025-11-21T17:25:08Z")

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lets say, I have 40000 unique buckets, can i use composite aggregation to fetch 1000 buckets at once, repeat the call until i fetch all the buckets

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## [Migrating from Elastic NEST v7 to .NET Elastic Client v8: Index alias search](https://discuss.elastic.co/t/migrating-from-elastic-nest-v7-to-net-elastic-client-v8-index-alias-search/383574)

<div class="topic-metadata">

**Author:** [@zoey\_L](https://discuss.elastic.co/u/zoey_L)\
**Replies:** 4\
**Last updated:** [November 21, 2025, 4:28pm UTC](https://discuss.elastic.co/t/migrating-from-elastic-nest-v7-to-net-elastic-client-v8-index-alias-search/383574 "2025-11-21T16:28:42Z")

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while migrating .net package from NEST to Elastic.Clients.Elasticsearch. Observed one issue of double search indexes if they have the same alias. We have a time rollover index created once a week. every week, there wil…

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## [Snapshot disaster recovery settings only](https://discuss.elastic.co/t/snapshot-disaster-recovery-settings-only/383589)

<div class="topic-metadata">

**Author:** [@juancamiloll](https://discuss.elastic.co/u/juancamiloll)\
**Replies:** 2\
**Last updated:** [November 21, 2025, 3:41pm UTC](https://discuss.elastic.co/t/snapshot-disaster-recovery-settings-only/383589 "2025-11-21T15:41:53Z")

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Thanks to the valuable help of @leandrojmp I was able to successfully configure what was necessary to use the “Snapshot and restore” feature. I have another question: I don't have enough space for the snapshot to save…

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## [Repository\_verification\_exception](https://discuss.elastic.co/t/repository-verification-exception/383588)

<div class="topic-metadata">

**Author:** [@juancamiloll](https://discuss.elastic.co/u/juancamiloll)\
**Replies:** 3\
**Last updated:** [November 21, 2025, 2:23pm UTC](https://discuss.elastic.co/t/repository-verification-exception/383588 "2025-11-21T14:23:43Z")

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I am in the process of configuring the “Snapshot and restore” functionality. I have a cluster of 3 servers for Elasticsearch. From the available options, “Shared File System” has been selected. I took one of the se…

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