# \#rally

**URL:** https://discuss.elastic.co/tag/rally/52.md

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

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## [How to Increase the throughput for KNN in my ES cluster](https://discuss.elastic.co/t/how-to-increase-the-throughput-for-knn-in-my-es-cluster/384252)

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**Author:** [@Esteban\_Velasquez](https://discuss.elastic.co/u/Esteban_Velasquez)\
**Replies:** 6\
**Last updated:** [January 31, 2026, 10:44am UTC](https://discuss.elastic.co/t/how-to-increase-the-throughput-for-knn-in-my-es-cluster/384252 "2026-01-31T10:44:11Z")

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Hello! I created a track in ESrally with some queries that are normally done in my ES cluster and I replicated the big index (using snapshot) from the original cluster I have into a new one. I am doing an ESrally test f…

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## [Requesting feedback on benchmark results: Hot vs Frozen(Cache) vs Frozen(No-Cache)](https://discuss.elastic.co/t/requesting-feedback-on-benchmark-results-hot-vs-frozen-cache-vs-frozen-no-cache/382169)

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**Author:** [@dipayans](https://discuss.elastic.co/u/dipayans)\
**Replies:** 0\
**Last updated:** [September 23, 2025, 1:34pm UTC](https://discuss.elastic.co/t/requesting-feedback-on-benchmark-results-hot-vs-frozen-cache-vs-frozen-no-cache/382169 "2025-09-23T13:34:38Z")

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Hi everyone, I recently ran a set of benchmark tests to evaluate performance across Hot tier and Frozen tier searchable snapshots (with and without cache). I’d really appreciate feedback from the community to understand…

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## [Large time variance between tests on the same system running the same track](https://discuss.elastic.co/t/large-time-variance-between-tests-on-the-same-system-running-the-same-track/380977)

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**Author:** [@e.undaunted407](https://discuss.elastic.co/u/e.undaunted407)\
**Replies:** 1\
**Last updated:** [August 13, 2025, 8:13am UTC](https://discuss.elastic.co/t/large-time-variance-between-tests-on-the-same-system-running-the-same-track/380977 "2025-08-13T08:13:33Z")

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I’ve been running rally multiple times on the same system as part of a benchmarking project, but I keep seeing huge variances between how long each run takes. How can I debug this further to understand what’s causing suc…

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## [Esrally setup for a day with custom logs & ingest-pipeline for benchmarking the cluster](https://discuss.elastic.co/t/esrally-setup-for-a-day-with-custom-logs-ingest-pipeline-for-benchmarking-the-cluster/380460)

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**Author:** [@Abhi\_Abhishek](https://discuss.elastic.co/u/Abhi_Abhishek)\
**Replies:** 3\
**Last updated:** [July 28, 2025, 8:37am UTC](https://discuss.elastic.co/t/esrally-setup-for-a-day-with-custom-logs-ingest-pipeline-for-benchmarking-the-cluster/380460 "2025-07-28T08:37:24Z")

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Hi All, I am new to ESRALLY setup, as of now I am able to create track & run the race for custom logs & ingest-pipeline, but i need to run the rally for a day on the cluster that is getting an almost 1.6billion records …

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## [esrally.exceptions.LaunchError: Daemon startup failed with exit code \[1\]](https://discuss.elastic.co/t/esrally-exceptions-launcherror-daemon-startup-failed-with-exit-code-1/378790)

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**Author:** [@Zoree](https://discuss.elastic.co/u/Zoree)\
**Replies:** 1\
**Last updated:** [June 2, 2025, 11:39am UTC](https://discuss.elastic.co/t/esrally-exceptions-launcherror-daemon-startup-failed-with-exit-code-1/378790 "2025-06-02T11:39:14Z")

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I trying start: esrally race --track-path=tracks/search\_all --distribution-version=7.11.2 --car="4gheap" --preserve-install But I got an error: esrally.exceptions.LaunchError: Daemon startup failed with exit code \[1\]. …

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## [SSL issue when running ESRally to ES hosted in a diff server](https://discuss.elastic.co/t/ssl-issue-when-running-esrally-to-es-hosted-in-a-diff-server/370881)

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**Author:** [@hiilmiee](https://discuss.elastic.co/u/hiilmiee)\
**Replies:** 7\
**Last updated:** [December 2, 2024, 9:44am UTC](https://discuss.elastic.co/t/ssl-issue-when-running-esrally-to-es-hosted-in-a-diff-server/370881 "2024-12-02T09:44:26Z")

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i am having difficulty runny ESrally Race. i have import the .crt and update-ca-certificates to pem. but when i run the command, i am getting ssl error. Commands tried: esrally race --track=acme --target-hosts=x.x.x.x:…

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## [Why is there such a big gap between the cumulative time from the search profiler and the latency from esrally?](https://discuss.elastic.co/t/why-is-there-such-a-big-gap-between-the-cumulative-time-from-the-search-profiler-and-the-latency-from-esrally/368479)

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**Author:** [@corojoon93](https://discuss.elastic.co/u/corojoon93)\
**Replies:** 5\
**Last updated:** [October 14, 2024, 10:22pm UTC](https://discuss.elastic.co/t/why-is-there-such-a-big-gap-between-the-cumulative-time-from-the-search-profiler-and-the-latency-from-esrally/368479 "2024-10-14T22:22:00Z")

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I have been using esrally and search profiler to test the performance of search queries processed by the existing cluster. I turned off request cache and the query cache for the index. Test result After running the sea…

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## [Mapping track path on local disk under docker](https://discuss.elastic.co/t/mapping-track-path-on-local-disk-under-docker/366349)

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**Author:** [@INS](https://discuss.elastic.co/u/INS)\
**Replies:** 4\
**Last updated:** [September 10, 2024, 6:51pm UTC](https://discuss.elastic.co/t/mapping-track-path-on-local-disk-under-docker/366349 "2024-09-10T18:51:32Z")

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Hi I'm strangling how to change repo for track to local track. I'm trying to load rally benchmark on simply test "--track-path=/rally/.rally/nyc\_taxis" so I've mapped volume with above patch and changed path in track.j…

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## [Distributing Load Test Driver: Does It Split Search Operations?](https://discuss.elastic.co/t/distributing-load-test-driver-does-it-split-search-operations/363437)

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**Author:** [@RafaelAdao](https://discuss.elastic.co/u/RafaelAdao)\
**Replies:** 1\
**Last updated:** [July 19, 2024, 3:35pm UTC](https://discuss.elastic.co/t/distributing-load-test-driver-does-it-split-search-operations/363437 "2024-07-19T15:35:23Z")

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I'm currently running benchmarks using ESRally with a distributed setup for the load test driver. When distributing the load test driver, are search operations also split across the different nodes/drivers?

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## [Error when running race](https://discuss.elastic.co/t/error-when-running-race/362681)

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**Author:** [@Hank.S](https://discuss.elastic.co/u/Hank.S)\
**Replies:** 2\
**Last updated:** [July 9, 2024, 2:32am UTC](https://discuss.elastic.co/t/error-when-running-race/362681 "2024-07-09T02:32:13Z")

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I'm new to rally and want to test my elastic cluster's performance. I have a 3-node elastic cluster set in docker. I'm in China mainland, so it could be a network issue. I installed esrally in a virtual venv of python…

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## [Cannot race, worker has exited prematurely](https://discuss.elastic.co/t/cannot-race-worker-has-exited-prematurely/362145)

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**Author:** [@Varun\_Tokas](https://discuss.elastic.co/u/Varun_Tokas)\
**Replies:** 6\
**Last updated:** [July 1, 2024, 3:49am UTC](https://discuss.elastic.co/t/cannot-race-worker-has-exited-prematurely/362145 "2024-07-01T03:49:15Z")

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When using Elasticsearch, I keep getting errors of this sort. $ esrally race --track-path=. --pipeline=benchmark-only --target-hosts="https://10.43.34.12:9200" --client-options="basic\_auth\_user:'elastic',basic\_auth\_pass…

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## [Cannot specify multiple documents in a single corpora](https://discuss.elastic.co/t/cannot-specify-multiple-documents-in-a-single-corpora/362065)

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**Author:** [@mradulag](https://discuss.elastic.co/u/mradulag)\
**Replies:** 6\
**Last updated:** [June 26, 2024, 12:05pm UTC](https://discuss.elastic.co/t/cannot-specify-multiple-documents-in-a-single-corpora/362065 "2024-06-26T12:05:33Z")

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I have multiple input JSON documents (around 5000) and want to ingest them using Rally, I have created a track.json based on those input JSON documents like this: (Shows the first few lines of the file) { "version":…

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## [Error Benchmarking AWS Managed Elasticsearch Cluster (version 7.10) using esrally](https://discuss.elastic.co/t/error-benchmarking-aws-managed-elasticsearch-cluster-version-7-10-using-esrally/361031)

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**Author:** [@Peter\_Eskandar](https://discuss.elastic.co/u/Peter_Eskandar)\
**Replies:** 11\
**Last updated:** [June 9, 2024, 6:13pm UTC](https://discuss.elastic.co/t/error-benchmarking-aws-managed-elasticsearch-cluster-version-7-10-using-esrally/361031 "2024-06-09T18:13:17Z")

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I'm attempting to benchmark an AWS Managed Elasticsearch Cluster (version: 7.10) using esrally, but I'm encountering the following error: \_\_\_\_ \_\_\_\_ / \_\_ \\\_\_\_\_ \_/ / /\_ \_\_ / /\_/ / \_\_ \`/ / / / / / / \_, \_/…

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## [How to effectively kill defunct child processes generated by esrally tool?](https://discuss.elastic.co/t/how-to-effectively-kill-defunct-child-processes-generated-by-esrally-tool/361006)

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**Author:** [@Andy\_Cong](https://discuss.elastic.co/u/Andy_Cong)\
**Replies:** 0\
**Last updated:** [June 7, 2024, 3:06am UTC](https://discuss.elastic.co/t/how-to-effectively-kill-defunct-child-processes-generated-by-esrally-tool/361006 "2024-06-07T03:06:05Z")

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I am using the esrally tool, which generates a large number of child processes. I've noticed that some of these child processes become defunct. I am looking for an effective way to kill these defunct processes. Any sugge…

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## [There are many defunct process while esrally race success](https://discuss.elastic.co/t/there-are-many-defunct-process-while-esrally-race-success/360719)

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**Author:** [@Andy\_Cong](https://discuss.elastic.co/u/Andy_Cong)\
**Replies:** 1\
**Last updated:** [June 3, 2024, 3:08pm UTC](https://discuss.elastic.co/t/there-are-many-defunct-process-while-esrally-race-success/360719 "2024-06-03T15:08:51Z")

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There are many defunct process while esrally race success. I have commit a complete issue on GitHub, but there is no response. Has anyone encountered this problem before? Can you provide some suggestions? add: run es…

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## [\[Error\] Unable to run esrally benchmark in local](https://discuss.elastic.co/t/error-unable-to-run-esrally-benchmark-in-local/360053)

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**Author:** [@gmittal22](https://discuss.elastic.co/u/gmittal22)\
**Replies:** 2\
**Last updated:** [May 23, 2024, 9:45am UTC](https://discuss.elastic.co/t/error-unable-to-run-esrally-benchmark-in-local/360053 "2024-05-23T09:45:36Z")

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Command used: esrally race --distribution-version=7.10.0 --track=geonames --challenge=append-no-conflicts --target-hosts=127.0.0.1:9200 --kill-running-processes --pipeline=benchmark-only Logs: 2024-05-23 04:51:49,486 …

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## [Wait-until-merges-finish-after-index operations](https://discuss.elastic.co/t/wait-until-merges-finish-after-index-operations/359286)

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**Author:** [@tommyd](https://discuss.elastic.co/u/tommyd)\
**Replies:** 8\
**Last updated:** [May 15, 2024, 9:33pm UTC](https://discuss.elastic.co/t/wait-until-merges-finish-after-index-operations/359286 "2024-05-15T21:33:52Z")

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Hello Rally Gurus, I am testing my ES cluster using ESRally with openai\_vector track and I have a question about the "wait-until-merges-finish-after-index" operation. In the track README file, I see that there is this …

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## [Available performance data from ESRally Perf Tool](https://discuss.elastic.co/t/available-performance-data-from-esrally-perf-tool/358660)

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**Author:** [@tommyd](https://discuss.elastic.co/u/tommyd)\
**Replies:** 8\
**Last updated:** [May 3, 2024, 1:01pm UTC](https://discuss.elastic.co/t/available-performance-data-from-esrally-perf-tool/358660 "2024-05-03T13:01:53Z")

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Hello ES gurus, I am just curious if there are any performance results available for any ESRally tracks. I searched on the internet but have not come up with anything. Here is the reason why I am looking for such data…

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## [Why is the product of average latency and average throughput greater than the number of clients (Little's Law)?](https://discuss.elastic.co/t/why-is-the-product-of-average-latency-and-average-throughput-greater-than-the-number-of-clients-littles-law/357811)

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**Author:** [@icyclv](https://discuss.elastic.co/u/icyclv)\
**Replies:** 0\
**Last updated:** [April 19, 2024, 4:17pm UTC](https://discuss.elastic.co/t/why-is-the-product-of-average-latency-and-average-throughput-greater-than-the-number-of-clients-littles-law/357811 "2024-04-19T16:17:25Z")

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Hello, I have recently studied Little's law, and I want to verify my understanding through the data from Rally, envisioning that the number of clients = average latency x average throughput. I have selected the track a…

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## [Using rally with a managed elastic deployment](https://discuss.elastic.co/t/using-rally-with-a-managed-elastic-deployment/356012)

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**Author:** [@cvarano](https://discuss.elastic.co/u/cvarano)\
**Replies:** 2\
**Last updated:** [April 8, 2024, 9:29pm UTC](https://discuss.elastic.co/t/using-rally-with-a-managed-elastic-deployment/356012 "2024-04-08T21:29:42Z")

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We have a deployment in Elastic cloud running Elasticsearch, but I don't see in the Rally docs how to point to or auth Elastic-managed deployments; I only see local ES setup and ES Serverless setup. Any guidance appreci…

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## [Rally max execution time and timeseries throughput metric](https://discuss.elastic.co/t/rally-max-execution-time-and-timeseries-throughput-metric/354278)

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**Author:** [@OmidS](https://discuss.elastic.co/u/OmidS)\
**Replies:** 4\
**Last updated:** [March 23, 2024, 8:23pm UTC](https://discuss.elastic.co/t/rally-max-execution-time-and-timeseries-throughput-metric/354278 "2024-03-23T20:23:24Z")

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Hello, I have been looking into the docs but have not been able to find information on two potential options I want from Rally. First, does rally have a max execution time parameter? Some of these tests run for a long …

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## [What does "bulk operation" mean exactly in custom track on es-rally?](https://discuss.elastic.co/t/what-does-bulk-operation-mean-exactly-in-custom-track-on-es-rally/355278)

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**Author:** [@qksjdhi1212](https://discuss.elastic.co/u/qksjdhi1212)\
**Replies:** 1\
**Last updated:** [March 13, 2024, 6:46am UTC](https://discuss.elastic.co/t/what-does-bulk-operation-mean-exactly-in-custom-track-on-es-rally/355278 "2024-03-13T06:46:31Z")

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I set the bulk operation with 5000 bulk-size and 5 clients { "version": 2, "description": "", "indices": \[ { "name": "indexing-1gb", "body": "index.json" } \], "corpora": \[ { "name…

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## [Running rally locally](https://discuss.elastic.co/t/running-rally-locally/354924)

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**Author:** [@Qia](https://discuss.elastic.co/u/Qia)\
**Replies:** 15\
**Last updated:** [March 13, 2024, 5:56am UTC](https://discuss.elastic.co/t/running-rally-locally/354924 "2024-03-13T05:56:37Z")

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After following Developing Rally - Rally 2.10.0.dev0 documentation I ran: (.venv) ➜ rally git:(master) python esrally/rally.py race --pipeline=benchmark-only --target-host=127.0.0.1:39200 --track=geonames --challenge=…

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## [Es rally list tracks error](https://discuss.elastic.co/t/es-rally-list-tracks-error/354694)

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**Author:** [@searchwithme](https://discuss.elastic.co/u/searchwithme)\
**Replies:** 1\
**Last updated:** [March 5, 2024, 7:35am UTC](https://discuss.elastic.co/t/es-rally-list-tracks-error/354694 "2024-03-05T07:35:36Z")

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esrally list tracks \_\_\_\_ \_\_\_\_ / \_\_ \_\_\_\_ / / / \_\_ / // / \_\_ \`/ / / / / / / , / // / / / // / // ||\_,///\_, / /\_\_\_\_/ \[ERROR\] Cannot list. substring not found. What could be the reason? Here is a snapshot of …

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## [Esrally list tracks](https://discuss.elastic.co/t/esrally-list-tracks/354687)

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**Author:** [@searchwithme](https://discuss.elastic.co/u/searchwithme)\
**Replies:** 1\
**Last updated:** [March 5, 2024, 4:35am UTC](https://discuss.elastic.co/t/esrally-list-tracks/354687 "2024-03-05T04:35:07Z")

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I have installed esrally on an ec2 instance and I am running list tracks and encountering this error. Can someone assist? esrally list tracks Traceback (most recent call last): File "/home/ec2-user/.local/bin/esrally"…

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## [Running es rally](https://discuss.elastic.co/t/running-es-rally/354663)

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**Author:** [@searchwithme](https://discuss.elastic.co/u/searchwithme)\
**Replies:** 0\
**Last updated:** [March 4, 2024, 3:37pm UTC](https://discuss.elastic.co/t/running-es-rally/354663 "2024-03-04T15:37:35Z")

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Hi Team! I need to test the performance of an elasticsearch cluster and check: how much compute and RAM needed to run 20K requests for a minute my current cluster is set up on elastic cloud Is this something es rally…

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## [Esrally installation](https://discuss.elastic.co/t/esrally-installation/354662)

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**Author:** [@searchwithme](https://discuss.elastic.co/u/searchwithme)\
**Replies:** 2\
**Last updated:** [March 4, 2024, 3:30pm UTC](https://discuss.elastic.co/t/esrally-installation/354662 "2024-03-04T15:30:16Z")

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I am trying to install esrally on my EC2 instance and I am getting this error: running build\_ext building 'psutil.\_psutil\_linux' extension creating build/temp.linux-x86\_64-cpython-37 creating build/temp.linux-x86\_64…

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## [Esrally connection aborted](https://discuss.elastic.co/t/esrally-connection-aborted/354440)

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**Author:** [@uttamkrpanda](https://discuss.elastic.co/u/uttamkrpanda)\
**Replies:** 6\
**Last updated:** [March 1, 2024, 8:09am UTC](https://discuss.elastic.co/t/esrally-connection-aborted/354440 "2024-03-01T08:09:59Z")

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I am trying to run the esrally in local , however it's getting connection aborted . The curl to the elasticsearch host is working fine but not via esrally . Any help here please ? esrally race --track=pmc --target-hos…

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## [Unable to run elasticsearch rally in docker](https://discuss.elastic.co/t/unable-to-run-elasticsearch-rally-in-docker/354174)

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**Author:** [@uttamkrpanda](https://discuss.elastic.co/u/uttamkrpanda)\
**Replies:** 1\
**Last updated:** [February 27, 2024, 8:16am UTC](https://discuss.elastic.co/t/unable-to-run-elasticsearch-rally-in-docker/354174 "2024-02-27T08:16:30Z")

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I am unable to run elasticsearch rally with docker its getting "No such file or directory" error . How can i fix this ? docker run elastic/rally race --track=nyc\_taxis --test-mode --pipeline=benchmark-only --target-hos…

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## [Rally benchmark results have much smaller latency than real](https://discuss.elastic.co/t/rally-benchmark-results-have-much-smaller-latency-than-real/353943)

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**Author:** [@fatcloud](https://discuss.elastic.co/u/fatcloud)\
**Replies:** 2\
**Last updated:** [February 23, 2024, 10:05am UTC](https://discuss.elastic.co/t/rally-benchmark-results-have-much-smaller-latency-than-real/353943 "2024-02-23T10:05:17Z")

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I wrote a Rally benchmark with a single search query operation. The Rally benchmark result shows a much smaller p50 latency(~200ms) compared to the latency I observe when i just use curl command to send same query(severa…

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