# Latest

**URL:** https://dragonfly.discourse.group/latest.md?page=2

[Latest](https://dragonfly.discourse.group/latest.md) · [Categories](https://dragonfly.discourse.group/categories.md) · [Tags](https://dragonfly.discourse.group/tags.md)

**Page:** 3

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## [HA Mode Failure](https://dragonfly.discourse.group/t/ha-mode-failure/141)

<div class="topic-metadata">

**Author:** [@deep-panther](https://dragonfly.discourse.group/u/deep-panther)\
**Replies:** 2\
**Last updated:** [March 7, 2024, 6:55am UTC](https://dragonfly.discourse.group/t/ha-mode-failure/141 "2024-03-07T06:55:54Z")

</div>

I’m deploying off the Helm deployment per below: kind: Application metadata: name: dragonfly-da namespace: argocd spec: destination: name: '' namespace: dragonfly-da server: 'https://kubernetes.default…

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## [Unresponsive during full\_sync](https://dragonfly.discourse.group/t/unresponsive-during-full-sync/135)

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**Author:** [@excellent-wolf](https://dragonfly.discourse.group/u/excellent-wolf)\
**Replies:** 22\
**Last updated:** [March 6, 2024, 8:17pm UTC](https://dragonfly.discourse.group/t/unresponsive-during-full-sync/135 "2024-03-06T20:17:25Z")

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Hi. We are running Dragonfly 1.12.0 with 2 nodes set up as master-replica. Works great in general, but found that whenever there’s a full-sync happening, the master node would go unresponsive during the entire full-sync …

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## [Unable to set maxmemory-policy config](https://dragonfly.discourse.group/t/unable-to-set-maxmemory-policy-config/142)

<div class="topic-metadata">

**Author:** [@resourceful-antelope](https://dragonfly.discourse.group/u/resourceful-antelope)\
**Replies:** 8\
**Last updated:** [March 5, 2024, 5:42pm UTC](https://dragonfly.discourse.group/t/unable-to-set-maxmemory-policy-config/142 "2024-03-05T17:42:57Z")

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According to https://www.dragonflydb.io/faq/how-to-set-eviction-policy-in-redis, I was trying to set the eviction policy on an already running instance like this and I am unable to. 127.0.0.1:6379\> CONFIG SET maxmemory-…

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## [script tried accessing undeclared key](https://dragonfly.discourse.group/t/script-tried-accessing-undeclared-key/140)

<div class="topic-metadata">

**Author:** [@unique-frog](https://dragonfly.discourse.group/u/unique-frog)\
**Replies:** 3\
**Last updated:** [March 4, 2024, 1:27pm UTC](https://dragonfly.discourse.group/t/script-tried-accessing-undeclared-key/140 "2024-03-04T13:27:21Z")

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hello. i want some help with my lua scritps local cursor = '0' local pattern = ARGV\[1\] .. ':\*' repeat local result = redis.call('SCAN', cursor, 'MATCH', pattern) cursor = result\[1\] local batchKeys = result\[…

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## [DragonFly Installation On CentOS Linux release 7.9.2009 (Core)](https://dragonfly.discourse.group/t/dragonfly-installation-on-centos-linux-release-7-9-2009-core/139)

<div class="topic-metadata">

**Author:** [@engaging-meerkat](https://dragonfly.discourse.group/u/engaging-meerkat)\
**Replies:** 7\
**Last updated:** [February 24, 2024, 8:02pm UTC](https://dragonfly.discourse.group/t/dragonfly-installation-on-centos-linux-release-7-9-2009-core/139 "2024-02-24T20:02:45Z")

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./dragonfly --logtostderr ./dragonfly: /lib64/libm.so.6: version GLIBC\_2.29' not found (required by ./dragonfly) ./dragonfly: /lib64/libc.so.6: version GLIBC\_2.27’ not found (required by ./dragonfly) ./dragonfly: /lib6…

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## [DragonFly vs Redis Performance Benchmark Replication](https://dragonfly.discourse.group/t/dragonfly-vs-redis-performance-benchmark-replication/138)

<div class="topic-metadata">

**Author:** [@positive-camel](https://dragonfly.discourse.group/u/positive-camel)\
**Replies:** 1\
**Last updated:** [February 19, 2024, 8:01pm UTC](https://dragonfly.discourse.group/t/dragonfly-vs-redis-performance-benchmark-replication/138 "2024-02-19T20:01:38Z")

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Installed DragonFly on n2-standard-8 (8 vCPU, 32GB Memory) Arch: x86/64 GCP Machine using binary. Generating load from another GCP instance 62 vCPU, 64GB Memory using memtier\_benchmark benchmarking tool. Installed the…

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## [Redis Sentinel](https://dragonfly.discourse.group/t/redis-sentinel/134)

<div class="topic-metadata">

**Author:** [@admirable-tasmanian](https://dragonfly.discourse.group/u/admirable-tasmanian)\
**Replies:** 2\
**Last updated:** [February 14, 2024, 2:23pm UTC](https://dragonfly.discourse.group/t/redis-sentinel/134 "2024-02-14T14:23:50Z")

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Hi all! Does anyone have experience setting up a high availability installation of Dragonflydb on kubernetes cluster in conjunction with Radis Sentinel ?

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## [How to update a Kubernetes deployment / image](https://dragonfly.discourse.group/t/how-to-update-a-kubernetes-deployment-image/137)

<div class="topic-metadata">

**Author:** [@charismatic-tasmania](https://dragonfly.discourse.group/u/charismatic-tasmania)\
**Replies:** 2\
**Last updated:** [February 14, 2024, 11:01am UTC](https://dragonfly.discourse.group/t/how-to-update-a-kubernetes-deployment-image/137 "2024-02-14T11:01:28Z")

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I installed Dragonfly 1.14.1 using Helm. What is the simplest way to manually update the deployment, e.g. to the latest version or a specific version like 1.14.3? Can the operator automatically keep the deployment upda…

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## [Redis Sentinal slave priority 0?](https://dragonfly.discourse.group/t/redis-sentinal-slave-priority-0/136)

<div class="topic-metadata">

**Author:** [@agreeable-shark](https://dragonfly.discourse.group/u/agreeable-shark)\
**Replies:** 2\
**Last updated:** [February 7, 2024, 4:10pm UTC](https://dragonfly.discourse.group/t/redis-sentinal-slave-priority-0/136 "2024-02-07T16:10:21Z")

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Planning to configure one DF master with 3 replicas. One should never be promoted to master. Is there a possibility with Dragonfly to tell Sentinel this node has a replica/slave priority = 0?

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## [TLS certificate](https://dragonfly.discourse.group/t/tls-certificate/133)

<div class="topic-metadata">

**Author:** [@youthful-snake](https://dragonfly.discourse.group/u/youthful-snake)\
**Replies:** 10\
**Last updated:** [February 2, 2024, 2:51am UTC](https://dragonfly.discourse.group/t/tls-certificate/133 "2024-02-02T02:51:12Z")

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I have a question how TLS certificate rotation is intended to work. As far as I can tell dragonflydb itself does not detect when a certificate file is updated. If this is correct, how should changed certifications be ha…

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## [exited with code 0](https://dragonfly.discourse.group/t/exited-with-code-0/132)

<div class="topic-metadata">

**Author:** [@yummy-koala](https://dragonfly.discourse.group/u/yummy-koala)\
**Replies:** 15\
**Last updated:** [January 29, 2024, 9:11pm UTC](https://dragonfly.discourse.group/t/exited-with-code-0/132 "2024-01-29T21:11:41Z")

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https://hastebin.skyra.pw/urawixefur.rust got this serror while trying to swap redis with dragonfly on proxitok

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## [blocking on set until replication lag catches up?](https://dragonfly.discourse.group/t/blocking-on-set-until-replication-lag-catches-up/131)

<div class="topic-metadata">

**Author:** [@praiseworthy-rhino](https://dragonfly.discourse.group/u/praiseworthy-rhino)\
**Replies:** 6\
**Last updated:** [January 17, 2024, 8:43pm UTC](https://dragonfly.discourse.group/t/blocking-on-set-until-replication-lag-catches-up/131 "2024-01-17T20:43:13Z")

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I’m running dragon using the provided kubernetes operator with replicas set to 2. So I have one master and one replica. Is it possible to know that a set key has been replicated? I hit an issue today that I set a key th…

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## [Docker image redis replace](https://dragonfly.discourse.group/t/docker-image-redis-replace/129)

<div class="topic-metadata">

**Author:** [@yummy-koala](https://dragonfly.discourse.group/u/yummy-koala)\
**Replies:** 7\
**Last updated:** [January 16, 2024, 9:29pm UTC](https://dragonfly.discourse.group/t/docker-image-redis-replace/129 "2024-01-16T21:29:18Z")

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redis: image: redis:7.2.3-alpine restart: unless-stopped command: \["redis-server", "--appendonly", "yes", "--loglevel", "warning"\] expose: - "6379" volumes: - ./.docker/database/redis:/da…

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## [This Redis command is not allowed from script](https://dragonfly.discourse.group/t/this-redis-command-is-not-allowed-from-script/130)

<div class="topic-metadata">

**Author:** [@munificent-gnu](https://dragonfly.discourse.group/u/munificent-gnu)\
**Replies:** 12\
**Last updated:** [January 10, 2024, 8:40pm UTC](https://dragonfly.discourse.group/t/this-redis-command-is-not-allowed-from-script/130 "2024-01-10T20:40:09Z")

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I am using a golang queue library and it has an inbuilt monitoring UI which just spews errors. https://github.com/hibiken/asynqmon/issues/210 Via this issue I tried the getMemoryLua script and it does indeed show the f…

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## [Incr/decr bigints](https://dragonfly.discourse.group/t/incr-decr-bigints/126)

<div class="topic-metadata">

**Author:** [@dutiful-deer](https://dragonfly.discourse.group/u/dutiful-deer)\
**Replies:** 19\
**Last updated:** [January 10, 2024, 6:05pm UTC](https://dragonfly.discourse.group/t/incr-decr-bigints/126 "2024-01-10T18:05:18Z")

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Hi, we would love to migrate to DragonflyDB but what’s keeping us back is that we’re not sure how to migrate our bigint module. The module itself is a few lines lines long and allows for bigint incr/decr on strings and h…

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## [Support for Client Side Caching](https://dragonfly.discourse.group/t/support-for-client-side-caching/128)

<div class="topic-metadata">

**Author:** [@munificent-gnu](https://dragonfly.discourse.group/u/munificent-gnu)\
**Replies:** 14\
**Last updated:** [December 30, 2023, 4:14pm UTC](https://dragonfly.discourse.group/t/support-for-client-side-caching/128 "2023-12-30T16:14:43Z")

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Hi, I was playing around with a go redis package and saw support for client side caching. https://redis.io/docs/manual/client-side-caching/ When running it with dragonfly I got the following error panic: Unknown subco…

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## [x86 openwrt cgroup limit error](https://dragonfly.discourse.group/t/x86-openwrt-cgroup-limit-error/127)

<div class="topic-metadata">

**Author:** [@eager-badger](https://dragonfly.discourse.group/u/eager-badger)\
**Replies:** 1\
**Last updated:** [December 29, 2023, 12:48am UTC](https://dragonfly.discourse.group/t/x86-openwrt-cgroup-limit-error/127 "2023-12-29T00:48:09Z")

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Hello, I am trying to run dragonfly on x86 version of openwrt. But on start i get an error : Failed in deducing any cgroup limits with paths /sys/fs/cgroup//services/dropbear/instance1 and /sys/fs/cgroup//services/drop…

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## [can I use redis-rs with dragonfly ？](https://dragonfly.discourse.group/t/can-i-use-redis-rs-with-dragonfly/125)

<div class="topic-metadata">

**Author:** [@zingy-rabbit](https://dragonfly.discourse.group/u/zingy-rabbit)\
**Replies:** 3\
**Last updated:** [December 10, 2023, 10:12am UTC](https://dragonfly.discourse.group/t/can-i-use-redis-rs-with-dragonfly/125 "2023-12-10T10:12:01Z")

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I want use rust with dragonfly

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## [LATENCY command and related subcommands](https://dragonfly.discourse.group/t/latency-command-and-related-subcommands/124)

<div class="topic-metadata">

**Author:** [@reliable-impala](https://dragonfly.discourse.group/u/reliable-impala)\
**Replies:** 114\
**Last updated:** [December 7, 2023, 10:45pm UTC](https://dragonfly.discourse.group/t/latency-command-and-related-subcommands/124 "2023-12-07T22:45:52Z")

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Hi there, I’ve been undertaking a migration to Dragonfly at my company, and I’ve been trying to find the easiest way to corroborate metrics we’re seeing in prometheus with the live conditions on the machine. I’ve noticed…

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## [Dragonfly pricing](https://dragonfly.discourse.group/t/dragonfly-pricing/123)

<div class="topic-metadata">

**Author:** [@cooperative-lynx](https://dragonfly.discourse.group/u/cooperative-lynx)\
**Replies:** 1\
**Last updated:** [November 30, 2023, 8:07pm UTC](https://dragonfly.discourse.group/t/dragonfly-pricing/123 "2023-11-30T20:07:20Z")

</div>

Hi, i’m currently re-designing parts of our cloud backend, and i was looking to find any clear pricing information (as for example redis have there calculator) We currently are looking at a quite mild load of ~16 GiB o…

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## [Connect to Dragonfly on Kubernetes](https://dragonfly.discourse.group/t/connect-to-dragonfly-on-kubernetes/120)

<div class="topic-metadata">

**Author:** [@unique-emu](https://dragonfly.discourse.group/u/unique-emu)\
**Replies:** 32\
**Last updated:** [November 9, 2023, 9:04pm UTC](https://dragonfly.discourse.group/t/connect-to-dragonfly-on-kubernetes/120 "2023-11-09T21:04:48Z")

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Probably a dumb question I’ve installed dragonflydb on a k8s with the helm chart and i’m questioning myself how do i connect to it. I know it mimics the Redis API, so i can use redis cli or SDK, but where should i conn…

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## [Running Dragonfly in Memcached mode doesn't support value \>~ 64 Kbytes?](https://dragonfly.discourse.group/t/running-dragonfly-in-memcached-mode-doesnt-support-value-64-kbytes/122)

<div class="topic-metadata">

**Author:** [@egalitarian-kangaroo](https://dragonfly.discourse.group/u/egalitarian-kangaroo)\
**Replies:** 25\
**Last updated:** [November 3, 2023, 9:13pm UTC](https://dragonfly.discourse.group/t/running-dragonfly-in-memcached-mode-doesnt-support-value-64-kbytes/122 "2023-11-03T21:13:35Z")

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I have set up Dragonfly with the default configuration, specifying only the Memcached port to enable the Memcached mode. In my attempts to store values, I discovered that I am unable to write any value that exceeds ~64 K…

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## [Question about Eviction](https://dragonfly.discourse.group/t/question-about-eviction/119)

<div class="topic-metadata">

**Author:** [@resourceful-antelope](https://dragonfly.discourse.group/u/resourceful-antelope)\
**Replies:** 26\
**Last updated:** [November 3, 2023, 2:02pm UTC](https://dragonfly.discourse.group/t/question-about-eviction/119 "2023-11-03T14:02:14Z")

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Hello, does Dragonfly support different eviction policies like Redis ?

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## [Unknown keys in cache](https://dragonfly.discourse.group/t/unknown-keys-in-cache/118)

<div class="topic-metadata">

**Author:** [@humorous-coyote](https://dragonfly.discourse.group/u/humorous-coyote)\
**Replies:** 4\
**Last updated:** [November 2, 2023, 10:03am UTC](https://dragonfly.discourse.group/t/unknown-keys-in-cache/118 "2023-11-02T10:03:59Z")

</div>

I have these 6 keys in by cache but I did not add them. Is it something related to internal suff of dragonfly?

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## [dragonfly-operator-controller-manager won't start](https://dragonfly.discourse.group/t/dragonfly-operator-controller-manager-wont-start/121)

<div class="topic-metadata">

**Author:** [@useful-numbat](https://dragonfly.discourse.group/u/useful-numbat)\
**Replies:** 7\
**Last updated:** [October 30, 2023, 4:29pm UTC](https://dragonfly.discourse.group/t/dragonfly-operator-controller-manager-wont-start/121 "2023-10-30T16:29:09Z")

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The manager exits with exit code 1, and the only logs are: “exec /manager: exec format error” I have a feeling it is because I am using an arm64 cpu. Is it not supported?

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## [Question about sorted sets](https://dragonfly.discourse.group/t/question-about-sorted-sets/114)

<div class="topic-metadata">

**Author:** [@munificent-gnu](https://dragonfly.discourse.group/u/munificent-gnu)\
**Replies:** 26\
**Last updated:** [October 27, 2023, 9:22am UTC](https://dragonfly.discourse.group/t/question-about-sorted-sets/114 "2023-10-27T09:22:20Z")

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I recently migrated from Redis to Dragonfly and noticed that I had to switch how I read from my Sorted set. I used to be able to just get the range from 0 - 1 in dragonfly I need to do -2 -1, is there some reason why it…

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## [Compatibility with Object Cache Pro (OCP)](https://dragonfly.discourse.group/t/compatibility-with-object-cache-pro-ocp/106)

<div class="topic-metadata">

**Author:** [@terrific-dingo](https://dragonfly.discourse.group/u/terrific-dingo)\
**Replies:** 30\
**Last updated:** [October 27, 2023, 1:32am UTC](https://dragonfly.discourse.group/t/compatibility-with-object-cache-pro-ocp/106 "2023-10-27T01:32:54Z")

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We are trialing OCP and wish to know whether it is compatible with dragonfly. Our hosting provider has brought our attention to Dragonfly, but they are not sure whether Dragonfly as a drop in for redis, can be used OCP. …

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## [Amazon Elastic Cache to Dragonfly DB](https://dragonfly.discourse.group/t/amazon-elastic-cache-to-dragonfly-db/113)

<div class="topic-metadata">

**Author:** [@zany-otter](https://dragonfly.discourse.group/u/zany-otter)\
**Replies:** 8\
**Last updated:** [October 26, 2023, 2:26pm UTC](https://dragonfly.discourse.group/t/amazon-elastic-cache-to-dragonfly-db/113 "2023-10-26T14:26:48Z")

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I have one confusion that , currently we are using Amazon Elastic cache(Redis), so Dragonfly can be hosted in AWS? what we have to do host dragon fly on AWS?

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## [Does dragonfly has an UI to manage and monitor key?](https://dragonfly.discourse.group/t/does-dragonfly-has-an-ui-to-manage-and-monitor-key/115)

<div class="topic-metadata">

**Author:** [@humorous-coyote](https://dragonfly.discourse.group/u/humorous-coyote)\
**Replies:** 9\
**Last updated:** [October 25, 2023, 1:13pm UTC](https://dragonfly.discourse.group/t/does-dragonfly-has-an-ui-to-manage-and-monitor-key/115 "2023-10-25T13:13:14Z")

</div>

I am running dragonfly through docker and I can see the webpage on port 6369 and the /metrics route to monitor the stats. Do we have any other UI pages which can be used to create and monitor existing keys in the cache? …

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## [Struggling to get started](https://dragonfly.discourse.group/t/struggling-to-get-started/117)

<div class="topic-metadata">

**Author:** [@funny-newt](https://dragonfly.discourse.group/u/funny-newt)\
**Replies:** 2\
**Last updated:** [October 23, 2023, 11:56pm UTC](https://dragonfly.discourse.group/t/struggling-to-get-started/117 "2023-10-23T23:56:21Z")

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I’ve run the docker install on Windows 11 and a terminal pops up with the init output but I cannot seem to connect to it at all. docker run --network=host --ulimit memlock=-1 docker.dragonflydb.io/dragonflydb/dragonfly …

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