# ES7.17.5 All nodes BKD readDeltaVInt **URL:** \ **Category:** Elasticsearch\ **Created:** [April 22, 2024, 4:37am UTC](https://discuss.elastic.co/t/es7-17-5-all-nodes-bkd-readdeltavint/357882 "2024-04-22T04:37:17Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![yangchenyu1997](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yangchenyu1997/32/133711_2.png) [@yangchenyu1997](https://discuss.elastic.co/u/yangchenyu1997)\ **Post date:** [April 22, 2024, 6:43am UTC](https://discuss.elastic.co/t/es7-17-5-all-nodes-bkd-readdeltavint/357882/6 "2024-04-22T06:43:51Z")
> [@One ES Data node's CPU jumps to 90%+ suddenly while in production](https://discuss.elastic.co/t/one-es-data-nodes-cpu-jumps-to-90-suddenly-while-in-production/267610): > > Hi, guys, we are running an ES cluster with 7.1.1 in production, and everything looks good while one day, a data node's CPU jumps to 90%+ suddenly, and all of the queries related to the index on that nodes were time out. However, when we restarted the ES process on that machine, everything goes back to normal and the problem could not be reproduced again. We have faced twice of this problem on the same cluster and we have no idea when will this happen again. Could anyone tell me how could I deb… It's a similar problem --- _[View the full topic](https://discuss.elastic.co/t/es7-17-5-all-nodes-bkd-readdeltavint/357882)._