# Broken index **URL:** \ **Category:** Elasticsearch\ **Created:** [March 3, 2018, 10:55am UTC](https://discuss.elastic.co/t/broken-index/122366 "2018-03-03T10:55:08Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Ivan44785372](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ivan44785372/32/38610_2.png) [@Ivan44785372](https://discuss.elastic.co/u/Ivan44785372)\ **Post date:** [March 3, 2018, 10:55am UTC](https://discuss.elastic.co/t/broken-index/122366/1 "2018-03-03T10:55:08Z")
Hello. Every 4-7 days one of my indexes get broken. ES: 5.6.8 OS: Debian 9.3 4.9.0-6-amd64 ``` curl -XGET http://hostname:9200/_cat/indices | grep red red delivered HotrN1eGQpmxTkbJN0oL0g 5 1 36618688 1476436 1.8gb 1.8gb ls /var/lib/elasticsearch/nodes/0/indices/HotrN1eGQpmxTkbJN0oL0g/ 0 1 2 3 4 _state ``` I have checked every of 5 indexes like this: java -cp lucene-core-6.6.1.jar -ea:org.apache.lucene... org.apache.lucene.index.CheckIndex /var/lib/elasticsearch/nodes/0/indices/HotrN1eGQpmxTkbJN0oL0g/0/index/ -verbose -exorcise But: No problems were detected with this index. Can you please suggest me something ? Solved: The problem was in broken server. I don't know what exactly but they changed everything except disks and I have never see again such problems. ---
**Author:** ![eperry](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eperry/32/551_2.png) [@eperry](https://discuss.elastic.co/u/eperry)\ **Post date:** [March 3, 2018, 11:59am UTC](https://discuss.elastic.co/t/broken-index/122366/2 "2018-03-03T11:59:18Z")
I would check the Log files to look for error messages. There are only 2 events I know that might corrupt the index but I am sure there are many more. - Your files system filled up - You lost the ability to write to the partition At least those are the common ones for me, but I would look at the elastic logfiles to see first what is happening ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 31, 2018, 11:59am UTC](https://discuss.elastic.co/t/broken-index/122366/3 "2018-03-31T11:59:22Z")
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