# 2.2.0: put-mapping errors **URL:** \ **Category:** Elasticsearch\ **Created:** [September 21, 2017, 1:59pm UTC](https://discuss.elastic.co/t/2-2-0-put-mapping-errors/101349 "2017-09-21T13:59:05Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![dawiro](https://avatars.discourse-cdn.com/v4/letter/d/71e660/32.png) [@dawiro](https://discuss.elastic.co/u/dawiro)\ **Post date:** [September 21, 2017, 1:59pm UTC](https://discuss.elastic.co/t/2-2-0-put-mapping-errors/101349/1 "2017-09-21T13:59:05Z")
Hi, I'm seeing the following errors despite there being no issues with shard errors etc: ``` ProcessClusterEventTimeoutException[failed to process cluster event (put-mapping [app-logs]) within 30s] at org.elasticsearch.cluster.service.InternalClusterService$2$1.run(InternalClusterService.java:343) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) ``` some info about our cluster: 2 x master node (4GB Heap/2 x CPU) 4 x data node (8GB Heap/ 4 x CPU) 2 x client node (4GB Heap/2 x CPU) Index Count: 5 Shard Count: 20 Total Docs: 98 million Total Storage: 258GB Failures seem to relate to yesterday's index which is backfilling, probably because of the put-mapping errors. However, I don't see specific shard, index or mapping errors that take me directly to the issue. Would appreciate some help to understand this... Regards, D ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 19, 2017, 1:59pm UTC](https://discuss.elastic.co/t/2-2-0-put-mapping-errors/101349/2 "2017-10-19T13:59:19Z")
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