# "Unable to lock JVM Memory: error=12, reason=Cannot allocate memory" **URL:** \ **Category:** Elasticsearch\ **Tags:** docker\ **Created:** [May 31, 2022, 6:27am UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000 "2022-05-31T06:27:58Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![amitsa](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@amitsa](https://discuss.elastic.co/u/amitsa)\ **Post date:** [May 31, 2022, 6:27am UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/1 "2022-05-31T06:27:58Z")
I have enabled bootstrap.memory\_lock: true ERROR: [1] bootstrap checks failed. You must address the points described in the following [1] lines before starting Elasticsearch. bootstrap check failure [1] of [1]: memory locking requested for Elasticsearch process but memory is not locked I am deploying elastic cluster on kubernetes ```auto initContainers: - name: sysctl image: busybox imagePullPolicy: IfNotPresent command: ["sysctl", "-w", "vm.max_map_count=262144"] securityContext: privileged: true - name: swapiness image: busybox imagePullPolicy: IfNotPresent command: ["sysctl", "-w", "vm.swappiness=1"] securityContext: privileged: true # Increase the max number of open file descriptors. - name: increase-fd-ulimit image: busybox imagePullPolicy: IfNotPresent command: ["sh", "-c", "ulimit -n 65535 && ulimit -u 4096 && ulimit -l unlimited"] securityContext: privileged: true ``` i have tried populating in dockerfile as well ```auto USER root RUN echo "Add limits settings ...\n"\ && echo -e "DefaultLimitNOFILE=65536\nDefaultLimitNPROC=32000\nDefaultLimitMEMLOCK=infinity" >> /etc/systemd/user.conf \ && echo -e "* soft nofile 65536\n* hard nofile 65536\n* soft nproc 32000\n* hard nproc 32000\n* hard memlock unlimited\n* soft memlock unlimited" >> /etc/security/limits.conf \ && echo -e "DefaultLimitNOFILE=65536\nDefaultLimitNPROC=32000\nDefaultLimitMEMLOCK=infinity" >> /etc/systemd/system.conf ``` but still not working ---
**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 1, 2022, 6:22am UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/2 "2022-06-01T06:22:53Z")
Did you check below thread ? > [@Elasticserach 7.2 Unable to create cluster with error "Unable to lock JVM Memory: error=12, reason=Cannot allocate memory"](https://discuss.elastic.co/t/elasticserach-7-2-unable-to-create-cluster-with-error-unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/252050/3): > > elasticsearch\_1 | {"type": "server", "timestamp": "2020-10-14T13:34:12,750+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "elk-cluster", "node.name": "primary", "message": "loaded module [x-pack-monitoring]" } elasticsearch\_1 | {"type": "server", "timestamp": "2020-10-14T13:34:12,750+0000", "level": "INFO", "component": "o.e.p.PluginsService", "cluster.name": "elk-cluster", "node.name": "primary", "message": "loaded module [x-pack-rollup]" } elasticsea… ---
**Author:** ![amitsa](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@amitsa](https://discuss.elastic.co/u/amitsa)\ **Post date:** [June 1, 2022, 7:21am UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/3 "2022-06-01T07:21:06Z")
yeah i have checked this thread how to check if my system supports it or not? ---
**Author:** ![ibra\_013](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ibra_013/32/104827_2.png) [@ibra\_013](https://discuss.elastic.co/u/ibra_013)\ **Post date:** [June 1, 2022, 10:53am UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/4 "2022-06-01T10:53:13Z")
Hi, Check this , > **[Memory lock check | Elasticsearch Guide \[8.2\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/_memory_lock_check.html)** [https://gemfire.docs.pivotal.io/97/geode/managing/heap\_use/lock\_memory.html](https://gemfire.docs.pivotal.io/97/geode/managing/heap_use/lock_memory.html) ---
**Author:** ![amitsa](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@amitsa](https://discuss.elastic.co/u/amitsa)\ **Post date:** [June 1, 2022, 11:42am UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/5 "2022-06-01T11:42:04Z")
i have followed this approach even with Elasticsearch user and \* . But still it doesn't work ---
**Author:** ![vgr](https://avatars.discourse-cdn.com/v4/letter/v/ec9cab/32.png) [@vgr](https://discuss.elastic.co/u/vgr)\ **Post date:** [June 9, 2022, 9:07pm UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/6 "2022-06-09T21:07:02Z")
Hi, I am facing the same issue even after making all the suggested changes. Did you happen to find any solution? ---
**Author:** ![amitsa](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@amitsa](https://discuss.elastic.co/u/amitsa)\ **Post date:** [June 10, 2022, 8:48am UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/7 "2022-06-10T08:48:51Z")
i see some system doesn't support memory lock as mentioned in few post in community. I went with disabling swap rather than setting bootstrap.memory\_lock: true. I have higher ram nodes with 31gb heap size. so there is now swap happening for me now. ---
**Author:** ![vgr](https://avatars.discourse-cdn.com/v4/letter/v/ec9cab/32.png) [@vgr](https://discuss.elastic.co/u/vgr)\ **Post date:** [June 10, 2022, 3:40pm UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/8 "2022-06-10T15:40:37Z")
I am using CentOS 7. I even tried swapoff -a to disable swap altogether, which doesn't work either. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 8, 2022, 3:40pm UTC](https://discuss.elastic.co/t/unable-to-lock-jvm-memory-error-12-reason-cannot-allocate-memory/306000/9 "2022-07-08T15:40:43Z")
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