# Slow bulk api requests (ES 6.0 beta2)

**URL:** <https://discuss.elastic.co/t/slow-bulk-api-requests-es-6-0-beta2/100859>\
**Category:** Elasticsearch\
**Created:** [September 18, 2017, 10:45am UTC](https://discuss.elastic.co/t/slow-bulk-api-requests-es-6-0-beta2/100859 "2017-09-18T10:45:43Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jayme](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jayme/32/6008_2.png) [@Jayme](https://discuss.elastic.co/u/Jayme)\
**Post date:** [September 18, 2017, 10:45am UTC](https://discuss.elastic.co/t/slow-bulk-api-requests-es-6-0-beta2/100859/1 "2017-09-18T10:45:43Z")

</div>

Hi,  
I'm using 6.0 for testing.. but seeing that bulk update requests are very slow. :  
A bulk update request with 300 items takes around 10 seconds average.. ☹  
on a 800M docs index. Having a 8 node cluster with each server having 16, 2.4GHz processors, 40GB ram and SSDS so hardware is not the problem.

When looking at the hot\_threads I see that a lot of time goes in to [warmer] calls..  
I created my index with :

```auto
      "index" : {
        "refresh_interval" : "1s",
        "number_of_shards" : "16",
        "store" : {
          "preload" : [
            "*"
          ]
        },

```

So I suspect that this "store" "preload" is causing all the slowdowns ..

Is there a way to remove this setting from the index or do I need to reindex everything completely ? :S

Because I get :

```auto
{"error":{"root_cause":[{"type":"action_request_validation_exception","reason":"Validation Failed: 1: no settings to update;"}],"type":"action_request_validation_exception","reason":"Validation Failed: 1: no settings to update;"},"status":400}J

```

Now when trying to run :

```auto
curl -XPUT 'elastic30:9200/my_index/_settings' -H 'Content-Type: application/json' -d'
{
  "index" : {
    "store.preload": []
  }
}'

```

Not 100% sure this is the cause of the slowdown but looking a the hot\_threads I think it's a big suspect..  
Thought "warmers" were completely removed from ES 5.X but apparently not.  
Regards  
Jayme

```auto
::: {elastic34}{g7ObCzVQRE2lMPH1wxI-2g}{1GjK_6CzRs2HkgdD8dcHew}{192.168.14.84}{192.168.14.84:9300}
   Hot threads at 2017-09-18T10:38:54.521Z, interval=500ms, busiestThreads=3, ignoreIdleThreads=true:
   
   101.0% (504.9ms out of 500ms) cpu usage by thread 'elasticsearch[elastic34][warmer][T#5]'
     4/10 snapshots sharing following 21 elements
       org.apache.lucene.util.PriorityQueue.updateTop(PriorityQueue.java:211)
       org.apache.lucene.index.MultiTermsEnum.pushTop(MultiTermsEnum.java:279)
       org.apache.lucene.index.MultiTermsEnum.next(MultiTermsEnum.java:301)
       org.apache.lucene.index.MultiDocValues$OrdinalMap.<init>(MultiDocValues.java:805)
       org.apache.lucene.index.MultiDocValues$OrdinalMap.build(MultiDocValues.java:762)
       org.apache.lucene.index.MultiDocValues$OrdinalMap.build(MultiDocValues.java:741)
       org.elasticsearch.index.fielddata.ordinals.GlobalOrdinalsBuilder.build(GlobalOrdinalsBuilder.java:65)
       org.elasticsearch.index.fielddata.plain.SortedSetDVOrdinalsIndexFieldData.localGlobalDirect(SortedSetDVOrdinalsIndexFieldData.java:127)
       org.elasticsearch.index.fielddata.plain.SortedSetDVOrdinalsIndexFieldData.localGlobalDirect(SortedSetDVOrdinalsIndexFieldData.java:45)
       org.elasticsearch.indices.fielddata.cache.IndicesFieldDataCache$IndexFieldCache.lambda$load$1(IndicesFieldDataCache.java:165)
       org.elasticsearch.indices.fielddata.cache.IndicesFieldDataCache$IndexFieldCache$$Lambda$1898/1260027281.load(Unknown Source)
       org.elasticsearch.common.cache.Cache.computeIfAbsent(Cache.java:401)
       org.elasticsearch.indices.fielddata.cache.IndicesFieldDataCache$IndexFieldCache.load(IndicesFieldDataCache.java:162)
       org.elasticsearch.index.fielddata.plain.SortedSetDVOrdinalsIndexFieldData.loadGlobal(SortedSetDVOrdinalsIndexFieldData.java:115)
       org.elasticsearch.index.fielddata.plain.SortedSetDVOrdinalsIndexFieldData.loadGlobal(SortedSetDVOrdinalsIndexFieldData.java:45)
       org.elasticsearch.index.IndexWarmer$FieldDataWarmer.lambda$warmReader$1(IndexWarmer.java:142)
       org.elasticsearch.index.IndexWarmer$FieldDataWarmer$$Lambda$1896/1627624627.run(Unknown Source)
       org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:569)
       java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
       java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
       java.lang.Thread.run(Thread.java:748)
     3/10 snapshots sharing following 18 elements
       org.apache.lucene.index.MultiDocValues$OrdinalMap.<init>(MultiDocValues.java:824)
       org.apache.lucene.index.MultiDocValues$OrdinalMap.build(MultiDocValues.java:762)
       org.apache.lucene.index.MultiDocValues$OrdinalMap.build(MultiDocValues.java:741)

```

---

<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:** [October 16, 2017, 12:39pm UTC](https://discuss.elastic.co/t/slow-bulk-api-requests-es-6-0-beta2/100859/3 "2017-10-16T12:39:07Z")

</div>

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