# Warning on elasticsearch logs

**URL:** <https://discuss.elastic.co/t/warning-on-elasticsearch-logs/181192>\
**Category:** Elasticsearch\
**Created:** [May 15, 2019, 12:39pm UTC](https://discuss.elastic.co/t/warning-on-elasticsearch-logs/181192 "2019-05-15T12:39:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![elk2](https://avatars.discourse-cdn.com/v4/letter/e/f14d63/32.png) [@elk2](https://discuss.elastic.co/u/elk2)\
**Post date:** [May 15, 2019, 12:39pm UTC](https://discuss.elastic.co/t/warning-on-elasticsearch-logs/181192/1 "2019-05-15T12:39:04Z")

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With an old version of elasticsearch ( 1.4.3 ) I have several warning.

Can you explicate me what mean this warning?

```
    29064:[2019-04-15 20:27:37,045][WARN][monitor.jvm] [Node2] [gc][old][24838177][1073716] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [15mb]->[15.4mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29065:[2019-04-15 20:27:48,820][WARN][monitor.jvm] [Node2] [gc][old][24838178][1073717] duration [11.1s], collections [1]/[11.7s], total [11.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [15.4mb]->[28.1mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29066:[2019-04-15 20:27:59,576][WARN][monitor.jvm] [Node2] [gc][old][24838179][1073718] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.1mb]->[27.4mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29067:[2019-04-15 20:28:10,551][WARN][monitor.jvm] [Node2] [gc][old][24838180][1073719] duration [10.5s], collections [1]/[10.9s], total [10.5s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [27.4mb]->[26.3mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29069:[2019-04-15 20:28:31,354][WARN][monitor.jvm] [Node2] [gc][old][24838182][1073721] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [24.3mb]->[27mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29070:[2019-04-15 20:28:42,327][WARN][monitor.jvm] [Node2] [gc][old][24838183][1073722] duration [10.5s], collections [1]/[10.9s], total [10.5s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [27mb]->[26.9mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29073:[2019-04-15 20:29:03,181][WARN][monitor.jvm] [Node2] [gc][old][24838185][1073724] duration [10.3s], collections [1]/[10.7s], total [10.3s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [27.2mb]->[27.7mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29076:[2019-04-15 20:29:23,986][WARN][monitor.jvm] [Node2] [gc][old][24838187][1073726] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [29mb]->[26.2mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29079:[2019-04-15 20:29:44,959][WARN][monitor.jvm] [Node2] [gc][old][24838189][1073728] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.6mb]->[28mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29081:[2019-04-15 20:30:06,087][WARN][monitor.jvm] [Node2] [gc][old][24838192][1073730] duration [10.1s], collections [1]/[10.8s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [26.8mb]->[27.8mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29084:[2019-04-15 20:30:26,809][WARN][monitor.jvm] [Node2] [gc][old][24838194][1073732] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.9mb]->[26mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29086:[2019-04-15 20:30:47,545][WARN][monitor.jvm] [Node2] [gc][old][24838196][1073734] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.8mb]->[26.2mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29088:[2019-04-15 20:31:08,211][WARN][monitor.jvm] [Node2] [gc][old][24838198][1073736] duration [10.3s], collections [1]/[10.7s], total [10.3s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [25.7mb]->[16.7mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29091:[2019-04-15 20:31:40,079][WARN][monitor.jvm] [Node2] [gc][old][24838202][1073739] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [15.2mb]->[16mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
```

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<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [May 15, 2019, 12:45pm UTC](https://discuss.elastic.co/t/warning-on-elasticsearch-logs/181192/2 "2019-05-15T12:45:24Z")

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It means that you are suffering from heap pressure. I would recommend either increasing the amount of heap available to each node or reduce the amount of heap used, e.g. by deleting data.

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<div class="post-metadata">

**Author:** ![elk2](https://avatars.discourse-cdn.com/v4/letter/e/f14d63/32.png) [@elk2](https://discuss.elastic.co/u/elk2)\
**Post date:** [May 15, 2019, 1:14pm UTC](https://discuss.elastic.co/t/warning-on-elasticsearch-logs/181192/3 "2019-05-15T13:14:47Z")

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Thanks Christian

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [June 12, 2019, 1:14pm UTC](https://discuss.elastic.co/t/warning-on-elasticsearch-logs/181192/4 "2019-06-12T13:14:53Z")

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