# Elasticsearch **URL:** https://discuss.elastic.co/c/elastic-stack/elasticsearch/6.md?page=1507 [Latest](https://discuss.elastic.co/latest.md) · [Categories](https://discuss.elastic.co/categories.md) · [Tags](https://discuss.elastic.co/tags.md) **Page:** 1508 --- ## [Snapshot from higher to lower version](https://discuss.elastic.co/t/snapshot-from-higher-to-lower-version/153780)
**Author:** [@sunilmchaudhari](https://discuss.elastic.co/u/sunilmchaudhari)\ **Replies:** 2\ **Last updated:** [October 24, 2018, 12:26pm UTC](https://discuss.elastic.co/t/snapshot-from-higher-to-lower-version/153780 "2018-10-24T12:26:06Z")
Hi, Due to some unavoidable situation, we have snapshot and restore from 6.3 to 5.6.6 version of elasticsearch. Is that possible? --- ## [Single node cluster in 5.2.0](https://discuss.elastic.co/t/single-node-cluster-in-5-2-0/153775)
**Author:** [@juiip](https://discuss.elastic.co/u/juiip)\ **Replies:** 1\ **Last updated:** [October 24, 2018, 12:14pm UTC](https://discuss.elastic.co/t/single-node-cluster-in-5-2-0/153775 "2018-10-24T12:14:49Z")
Hi, is there a setting I can implement within my 5.2.0 cluster to make it have just a single node? I am aware of discovery-type: single-node but this is not available for version 5.2.0, is there a setting that has the sa… --- ## [Spark elasticcloud connection issue](https://discuss.elastic.co/t/spark-elasticcloud-connection-issue/153789)
**Author:** [@Mohammed\_sheik](https://discuss.elastic.co/u/Mohammed_sheik)\ **Replies:** 0\ **Last updated:** [October 24, 2018, 11:55am UTC](https://discuss.elastic.co/t/spark-elasticcloud-connection-issue/153789 "2018-10-24T11:55:13Z")
we are using spark processing to load data to elastic search. we are using elastic cloud and our spark elastic search connection as below: \< val conf = new SparkConf().setAppName("loaduserdata").setMaster("local") .se… --- ## [Data nodes HA and Shards allocation/creation](https://discuss.elastic.co/t/data-nodes-ha-and-shards-allocation-creation/151150)
**Author:** [@mruthyu](https://discuss.elastic.co/u/mruthyu)\ **Replies:** 7\ **Last updated:** [October 24, 2018, 11:48am UTC](https://discuss.elastic.co/t/data-nodes-ha-and-shards-allocation-creation/151150 "2018-10-24T11:48:08Z")
If we have two data nodes and replica has been set to 1, and if a node down whether the shards will be created in other node newly and will require the same amount of additional disk space which has been lost due to the … --- ## [Certutil Extended fields](https://discuss.elastic.co/t/certutil-extended-fields/153764)
**Author:** [@bodi4](https://discuss.elastic.co/u/bodi4)\ **Replies:** 3\ **Last updated:** [October 24, 2018, 11:05am UTC](https://discuss.elastic.co/t/certutil-extended-fields/153764 "2018-10-24T11:05:33Z")
Hi, Can anyone explain, is it possible to add information to OU and E fields while generating csr or cert? In documentation I see option -E \ is that what I need? If so, what format of pair -E OU=myunit ?… --- ## [Support in Puppet Module for Elasticsearch 6.x initial password setup](https://discuss.elastic.co/t/support-in-puppet-module-for-elasticsearch-6-x-initial-password-setup/153387)
**Author:** [@arnold79](https://discuss.elastic.co/u/arnold79)\ **Replies:** 3\ **Last updated:** [October 23, 2018, 10:03am UTC](https://discuss.elastic.co/t/support-in-puppet-module-for-elasticsearch-6-x-initial-password-setup/153387 "2018-10-23T10:03:36Z")
Hi All, Currently busy setting up a Puppet Ent. configuration by using the official Elastic module. We can easily deploy the elasticsearch node with the configuration, but we struggling setting up the initial passwords … --- ## [Cannot create bean because of ThreadPool in test environment](https://discuss.elastic.co/t/cannot-create-bean-because-of-threadpool-in-test-environment/153734)
**Author:** [@Moonju](https://discuss.elastic.co/u/Moonju)\ **Replies:** 1\ **Last updated:** [October 24, 2018, 9:53am UTC](https://discuss.elastic.co/t/cannot-create-bean-because-of-threadpool-in-test-environment/153734 "2018-10-24T09:53:55Z")
Hi, I'm using ThreadPool to use BulkProcessor like this. final Settings settings = Settings.builder().put(Node.NODE\_NAME\_SETTING, "high-level-client").build(); final ThreadPool threadPool = new ThreadPool(settings); /… --- ## [Understanding Cluster health from local node](https://discuss.elastic.co/t/understanding-cluster-health-from-local-node/153765)
**Author:** [@sss](https://discuss.elastic.co/u/sss)\ **Replies:** 3\ **Last updated:** [October 24, 2018, 9:46am UTC](https://discuss.elastic.co/t/understanding-cluster-health-from-local-node/153765 "2018-10-24T09:46:17Z")
Hello, what does it mean to do GET /\_cluster/health? with local = true passed as query parameter ElasticSearch documentation says If true returns the local node information and does not provide the state from master n… --- ## [Stop routing search when the node is GC](https://discuss.elastic.co/t/stop-routing-search-when-the-node-is-gc/153757)
**Author:** [@ebuildy](https://discuss.elastic.co/u/ebuildy)\ **Replies:** 5\ **Last updated:** [October 24, 2018, 9:32am UTC](https://discuss.elastic.co/t/stop-routing-search-when-the-node-is-gc/153757 "2018-10-24T09:32:34Z")
We run a 10 data nodes cluster, 64Gb memory, 30 Gb heap, 8 cores, with elasticsearch 2.4. At least 500 searchs/seconds. Every 3 days, we see errors because the search threads pool is full, after some investigations, the… --- ## [Unique count (cardinality agg query) from two fields](https://discuss.elastic.co/t/unique-count-cardinality-agg-query-from-two-fields/153626)
**Author:** [@birko](https://discuss.elastic.co/u/birko)\ **Replies:** 1\ **Last updated:** [October 24, 2018, 8:54am UTC](https://discuss.elastic.co/t/unique-count-cardinality-agg-query-from-two-fields/153626 "2018-10-24T08:54:19Z")
Hello, how can I do unique count based on two fields with cardinality aggregation query? Let’s imagine from\_user and to\_user are telephone numbers and I need unique count of tel.numbers. Example: 1st document "\_index… --- ## [Rewrite\_time on \_search too high](https://discuss.elastic.co/t/rewrite-time-on-search-too-high/153162)
**Author:** [@Tomas\_Kurinec](https://discuss.elastic.co/u/Tomas_Kurinec)\ **Replies:** 3\ **Last updated:** [October 24, 2018, 8:44am UTC](https://discuss.elastic.co/t/rewrite-time-on-search-too-high/153162 "2018-10-24T08:44:11Z")
Hi, we have ES cluster 6.4.2 with 2 nodes each node HW is: Intel® Xeon® E3-1275 v5 Quad Core 64 GB DDR4 ECC RAM 2 x 512 GB NVMe Gen3 x4 SSD (Software RAID 1) 1 Gbit eth between them. We have 1 index with 5 shards … --- ## [Cannot load class org.elasticsearch.spark.sql.SparkSQLCompatibilityLevel](https://discuss.elastic.co/t/cannot-load-class-org-elasticsearch-spark-sql-sparksqlcompatibilitylevel/152517)
**Author:** [@SKing](https://discuss.elastic.co/u/SKing)\ **Replies:** 2\ **Last updated:** [October 24, 2018, 8:26am UTC](https://discuss.elastic.co/t/cannot-load-class-org-elasticsearch-spark-sql-sparksqlcompatibilitylevel/152517 "2018-10-24T08:26:39Z")
I am running a Java Spark application. I can run the application from inside the intellij IDE. However, if I try to run it using the application built as a jar I get the following error. Caused by: org.elasticsearch.h… --- ## [Request cannot be executed; I/O reactor status: STOPPED](https://discuss.elastic.co/t/request-cannot-be-executed-i-o-reactor-status-stopped/153746)
**Author:** [@blxsud](https://discuss.elastic.co/u/blxsud)\ **Replies:** 0\ **Last updated:** [October 24, 2018, 8:00am UTC](https://discuss.elastic.co/t/request-cannot-be-executed-i-o-reactor-status-stopped/153746 "2018-10-24T08:00:06Z")
Continuing the discussion from \[v6.2.2\]ES often happen Frequently error of timeout question now and then: i am also getting same error. Let me know if any solution for this? java.lang.IllegalStateException: Request can… --- ## [Elasticsearch Python client - IncompleteRead error](https://discuss.elastic.co/t/elasticsearch-python-client-incompleteread-error/153745)
**Author:** [@SnirX](https://discuss.elastic.co/u/SnirX)\ **Replies:** 1\ **Last updated:** [October 24, 2018, 7:54am UTC](https://discuss.elastic.co/t/elasticsearch-python-client-incompleteread-error/153745 "2018-10-24T07:54:34Z")
Hi, I'm running an Elasticsearch cluster version 6.3.2. I'm using Python client to query the Elasticsearch. Python version - 2.7.5 Python Elasticsearch client version - 6.3.0 Suddenly I started to get this kind of e… --- ## [ELK stuck in Read Only mode](https://discuss.elastic.co/t/elk-stuck-in-read-only-mode/153478)
**Author:** [@hueyg](https://discuss.elastic.co/u/hueyg)\ **Replies:** 3\ **Last updated:** [October 24, 2018, 7:34am UTC](https://discuss.elastic.co/t/elk-stuck-in-read-only-mode/153478 "2018-10-24T07:34:39Z")
I am posting this in Kibana, but honestly not sure where the problem lies. Every piece is version 6.4.2. Stack was working fine. My stack is configured as Beats\>Logstash\>Kibana? Honestly new so I am not sure what rol… --- ## [Problem with very slow insertion](https://discuss.elastic.co/t/problem-with-very-slow-insertion/153732)
**Author:** [@magorbe](https://discuss.elastic.co/u/magorbe)\ **Replies:** 2\ **Last updated:** [October 24, 2018, 7:29am UTC](https://discuss.elastic.co/t/problem-with-very-slow-insertion/153732 "2018-10-24T07:29:01Z")
Hi, I'm desperate. I have the following mapping: { "my\_index": { "aliases": {}, "mappings": { "a\_c": { "properties": { "id": { … --- ## [I hope that elasticsearch can also be used on Android mobile phones. Are there any APK downloads related to elasticsearch?](https://discuss.elastic.co/t/i-hope-that-elasticsearch-can-also-be-used-on-android-mobile-phones-are-there-any-apk-downloads-related-to-elasticsearch/153707)
**Author:** [@hjz568](https://discuss.elastic.co/u/hjz568)\ **Replies:** 7\ **Last updated:** [October 24, 2018, 7:05am UTC](https://discuss.elastic.co/t/i-hope-that-elasticsearch-can-also-be-used-on-android-mobile-phones-are-there-any-apk-downloads-related-to-elasticsearch/153707 "2018-10-24T07:05:46Z")
I hope that elasticsearch can also be used on Android mobile phones. Are there any APK downloads related to elasticsearch? --- ## [How to add multiple types to an index Elasticsearch 6.4](https://discuss.elastic.co/t/how-to-add-multiple-types-to-an-index-elasticsearch-6-4/151032)
**Author:** [@Sanjaybg](https://discuss.elastic.co/u/Sanjaybg)\ **Replies:** 2\ **Last updated:** [October 24, 2018, 6:37am UTC](https://discuss.elastic.co/t/how-to-add-multiple-types-to-an-index-elasticsearch-6-4/151032 "2018-10-24T06:37:02Z")
I am using Elasticsearch6.4 Java High Level REST Client. I am creating a index per customer and trying to add multiple types in that on demand. My code for adding type for a module goes like this RestHighLevelClient c… --- ## [Multiple nodes on elasticsearch](https://discuss.elastic.co/t/multiple-nodes-on-elasticsearch/153061)
**Author:** [@Ganesh2303](https://discuss.elastic.co/u/Ganesh2303)\ **Replies:** 10\ **Last updated:** [October 24, 2018, 6:15am UTC](https://discuss.elastic.co/t/multiple-nodes-on-elasticsearch/153061 "2018-10-24T06:15:53Z")
HI, My requirement is need to run multiple node on elasticsearch cluster, I have 3 server's all the 3 are in cluster form and all the 3 nodes are master. when i create data node on one server its fail to bind with ma… --- ## [Special Character Search with kuromoji](https://discuss.elastic.co/t/special-character-search-with-kuromoji/153719)
**Author:** [@Boney\_Jacob](https://discuss.elastic.co/u/Boney_Jacob)\ **Replies:** 0\ **Last updated:** [October 24, 2018, 5:51am UTC](https://discuss.elastic.co/t/special-character-search-with-kuromoji/153719 "2018-10-24T05:51:15Z")
Hi, I have an issue with the Japanese analyzer with kuromoji\_tokenizer. Elasticsearch version: 6.2. How can I search special characters in Elasticsearch? I have tried with escaped special characters but it strips spe… --- ## [Merge multiple Elasticsearch installations](https://discuss.elastic.co/t/merge-multiple-elasticsearch-installations/152206)
**Author:** [@gollrich](https://discuss.elastic.co/u/gollrich)\ **Replies:** 3\ **Last updated:** [October 24, 2018, 2:28am UTC](https://discuss.elastic.co/t/merge-multiple-elasticsearch-installations/152206 "2018-10-24T02:28:14Z")
Greetings! we have the current problem that for security reasons we have to run elk on premise without connection to the internet. We now want to migrate the data of multiple installations to one "global" one . Also t… --- ## [Retrieving a date range in c#](https://discuss.elastic.co/t/retrieving-a-date-range-in-c/152304)
**Author:** [@donElk](https://discuss.elastic.co/u/donElk)\ **Replies:** 5\ **Last updated:** [October 24, 2018, 2:27am UTC](https://discuss.elastic.co/t/retrieving-a-date-range-in-c/152304 "2018-10-24T02:27:07Z")
Hello, I am trying to get a list of records from my Elasticsearch client using C#. Within my Elasticsearch index I have a field called startdate. I am looking to query a date range based off this code. List\ **Author:** [@tfasun](https://discuss.elastic.co/u/tfasun)\ **Replies:** 0\ **Last updated:** [October 24, 2018, 2:26am UTC](https://discuss.elastic.co/t/what-is-the-cause-of-this-error-elastic-2-3/153698 "2018-10-24T02:26:19Z") I have a warn message before error. Reason of error can be that high disk watermark \[90%\] exceeded on ? \[WARN \]\[cluster.routing.allocation.decider\] \[Mist Mistress\] high disk watermark \[90%\] exceeded on \[5RZ2UvHjQRen4pP… --- ## [Failed to start elastic search after tls enabled](https://discuss.elastic.co/t/failed-to-start-elastic-search-after-tls-enabled/153490)
**Author:** [@rmadoori](https://discuss.elastic.co/u/rmadoori)\ **Replies:** 9\ **Last updated:** [October 24, 2018, 1:06am UTC](https://discuss.elastic.co/t/failed-to-start-elastic-search-after-tls-enabled/153490 "2018-10-24T01:06:47Z")
Hi, I am trying to enable tls between elasticsearch nodes. I have created the certs . I have added key.pem and chain.pem under my /elasticsearch/config. But elastic search doest start . ERROR: \`failed to initialize… --- ## [What is a good method for testing out different elastic search jvm parameters](https://discuss.elastic.co/t/what-is-a-good-method-for-testing-out-different-elastic-search-jvm-parameters/153695)
**Author:** [@timliu9](https://discuss.elastic.co/u/timliu9)\ **Replies:** 1\ **Last updated:** [October 24, 2018, 12:06am UTC](https://discuss.elastic.co/t/what-is-a-good-method-for-testing-out-different-elastic-search-jvm-parameters/153695 "2018-10-24T00:06:57Z")
I have a large Elastic Search cluster that I want to tune better. I have a few different things I want to try, including some different jvm parameters. What might be a good way to test the parameters that provides a va… --- ## [Elasticsearch 5.2.2 disk usage](https://discuss.elastic.co/t/elasticsearch-5-2-2-disk-usage/153394)
**Author:** [@gwince](https://discuss.elastic.co/u/gwince)\ **Replies:** 5\ **Last updated:** [October 23, 2018, 8:45pm UTC](https://discuss.elastic.co/t/elasticsearch-5-2-2-disk-usage/153394 "2018-10-23T20:45:10Z")
We have a 3node ES cluster, and free disk space has become an issue over the weekend. We don't have the ability at the moment to add any more capacity, so we're looking at what we can remove. We've audited our indices a… --- ## [Can't join node after upgrade](https://discuss.elastic.co/t/cant-join-node-after-upgrade/151693)
**Author:** [@McElroy](https://discuss.elastic.co/u/McElroy)\ **Replies:** 8\ **Last updated:** [October 23, 2018, 5:51pm UTC](https://discuss.elastic.co/t/cant-join-node-after-upgrade/151693 "2018-10-23T17:51:07Z")
I can't join my upgraded node to my cluster again. \[2018-10-09T19:21:39,386\]\[WARN \]\[r.suppressed \] path: /se-tcj-al-2018-10-09/log/c309f128- 9c17-4848-9fb0-1c2ae3a835c5, params: {index=se-tcj-al-2018-10-0… --- ## [Mapper \[kubernetes.labels.app\] of different type, current\_type \[text\], merged\_type \[ObjectMapper\]](https://discuss.elastic.co/t/mapper-kubernetes-labels-app-of-different-type-current-type-text-merged-type-objectmapper/152702)
**Author:** [@sszabo](https://discuss.elastic.co/u/sszabo)\ **Replies:** 7\ **Last updated:** [October 23, 2018, 3:34pm UTC](https://discuss.elastic.co/t/mapper-kubernetes-labels-app-of-different-type-current-type-text-merged-type-objectmapper/152702 "2018-10-23T15:34:04Z")
We get this error in elastic: java.lang.IllegalArgumentException: mapper \[kubernetes.labels.app\] of different type, current\_type \[text\], merged\_type \[ObjectMapper\] The message seems to have kubernetes.labels.app set to… --- ## [X-Pack is not supported and Machine Learning is not available for \[linux-s390x\]](https://discuss.elastic.co/t/x-pack-is-not-supported-and-machine-learning-is-not-available-for-linux-s390x/146625)
**Author:** [@chakravarthy\_G](https://discuss.elastic.co/u/chakravarthy_G)\ **Replies:** 7\ **Last updated:** [October 23, 2018, 3:17pm UTC](https://discuss.elastic.co/t/x-pack-is-not-supported-and-machine-learning-is-not-available-for-linux-s390x/146625 "2018-10-23T15:17:48Z")
According to this, ml wont be suppored if we use 32 bit JVM ,but I am using 64 bit machine and JVM (OpenJDK 64-Bit Server VM (build 10.0.2-adoptopenjdk+13, mixed mode)) , but still getting the same exception while s… --- ## [Trigger alert on field exceeding limit per host before it finds other host when its throttled](https://discuss.elastic.co/t/trigger-alert-on-field-exceeding-limit-per-host-before-it-finds-other-host-when-its-throttled/153210)
**Author:** [@shiv94](https://discuss.elastic.co/u/shiv94)\ **Replies:** 4\ **Last updated:** [October 23, 2018, 3:13pm UTC](https://discuss.elastic.co/t/trigger-alert-on-field-exceeding-limit-per-host-before-it-finds-other-host-when-its-throttled/153210 "2018-10-23T15:13:24Z")
Created a watcher alert when field exceeds limit, agg by host, throttled for 1 hour and scheduled the trigger for 5 min. The watcher is triggered, found one host which exceeds limit and its being throttled for 1 hour.Th… [Previous page](https://discuss.elastic.co/c/elastic-stack/elasticsearch/6.md?page=1506) [Next page](https://discuss.elastic.co/c/elastic-stack/elasticsearch/6.md?page=1508)