# Watermark floodstage not stopping usage of diskspace **URL:** \ **Category:** Elasticsearch\ **Created:** [August 18, 2020, 12:38pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415 "2020-08-18T12:38:09Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Darshan\_Kamat](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/darshan_kamat/32/44993_2.png) [@Darshan\_Kamat](https://discuss.elastic.co/u/Darshan_Kamat)\ **Post date:** [August 18, 2020, 12:38pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/1 "2020-08-18T12:38:09Z")
I have 1 node cluster where flood stage watermark is breached but it seems ES is still occupying data .Is this correct ? PFB my logs : > [2020-05-30T06:18:44,774][WARN][o.e.c.r.a.DiskThresholdMonitor] [elastic\_226] flood stage disk watermark [95%] exceeew][elastic\_226][/apps/efk/elasticsearch-7.6.0/data/nodes/0] free: 21.8mb[0%], all indices on this node will be marke > [2020-05-30T06:19:14,775][WARN][o.e.c.r.a.DiskThresholdMonitor] [elastic\_226] flood stage disk watermark [95%] exceeew][elastic\_226][/apps/efk/elasticsearch-7.6.0/data/nodes/0] free: 18.4mb[0%], all indices on this node will be marke > [2020-05-30T06:19:44,776][WARN][o.e.c.r.a.DiskThresholdMonitor] [elastic\_226] flood stage disk watermark [95%] exceeew][elastic\_226][/apps/efk/elasticsearch-7.6.0/data/nodes/0] free: 15mb[0%], all indices on this node will be marked > [2020-05-30T06:20:14,777][WARN][o.e.c.r.a.DiskThresholdMonitor] [elastic\_226] flood stage disk watermark [95%] exceeew][elastic\_226][/apps/efk/elasticsearch-7.6.0/data/nodes/0] free: 11.6mb[0%], all indices on this node will be marke > [2020-05-30T06:20:44,779][WARN][o.e.c.r.a.DiskThresholdMonitor] [elastic\_226] flood stage disk watermark [95%] exceeew][elastic\_226][/apps/efk/elasticsearch-7.6.0/data/nodes/0] free: 8.2mb[0%], all indices on this node will be marked > [2020-05-30T06:21:14,780][WARN][o.e.c.r.a.DiskThresholdMonitor] [elastic\_226] flood stage disk watermark [95%] exceeew][elastic\_226][/apps/efk/elasticsearch-7.6.0/data/nodes/0] free: 4.8mb[0%], all indices on this node will be marked > [2020-05-30T06:21:44,781][WARN][o.e.c.r.a.DiskThresholdMonitor] [elastic\_226] flood stage disk watermark [95%] exceeew][elastic\_226][/apps/efk/elasticsearch-7.6.0/data/nodes/0] free: 1.5mb[0%], all indices on this node will be mark ---
**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:** [August 18, 2020, 12:58pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/2 "2020-08-18T12:58:38Z")
The flood stage causes Elasticsearch to make indices read-only and redistribute shards if it can. It does not delete any data. ---
**Author:** ![Darshan\_Kamat](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/darshan_kamat/32/44993_2.png) [@Darshan\_Kamat](https://discuss.elastic.co/u/Darshan_Kamat)\ **Post date:** [August 18, 2020, 1:22pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/3 "2020-08-18T13:22:08Z")
So when u say indices are read only , does it mean new data and new indices wont be created ? Also how do i limit ES from utilizing more disk space like 95% max .Isnt that what "flood stage watermark" supposed to do ? ---
**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:** [August 18, 2020, 1:28pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/4 "2020-08-18T13:28:17Z")
Yes. No new indices will be created and no new data indexed. ---
**Author:** ![Darshan\_Kamat](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/darshan_kamat/32/44993_2.png) [@Darshan\_Kamat](https://discuss.elastic.co/u/Darshan_Kamat)\ **Post date:** [August 18, 2020, 1:30pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/5 "2020-08-18T13:30:45Z")
So in this case how come disk availability is getting decreased continously even after watermark breach all the way to 0 % is my question ---
**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:** [August 18, 2020, 1:39pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/6 "2020-08-18T13:39:36Z")
Do you have anything else writing there, e.g. logs? ---
**Author:** ![Darshan\_Kamat](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/darshan_kamat/32/44993_2.png) [@Darshan\_Kamat](https://discuss.elastic.co/u/Darshan_Kamat)\ **Post date:** [August 18, 2020, 1:56pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/7 "2020-08-18T13:56:14Z")
No..it has only elastic search..but as I mentioned I do have only 1 node cluster...could that be the cause of the problem? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [September 15, 2020, 1:56pm UTC](https://discuss.elastic.co/t/watermark-floodstage-not-stopping-usage-of-diskspace/245415/8 "2020-09-15T13:56:18Z")
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