# Elasticsearch **URL:** https://discuss.elastic.co/c/elastic-stack/elasticsearch/6.md?page=1473 [Latest](https://discuss.elastic.co/latest.md) · [Categories](https://discuss.elastic.co/categories.md) · [Tags](https://discuss.elastic.co/tags.md) **Page:** 1474 --- ## [Max Number of Elasticsearch Data nodes](https://discuss.elastic.co/t/max-number-of-elasticsearch-data-nodes/158133)
**Author:** [@mruthyu](https://discuss.elastic.co/u/mruthyu)\ **Replies:** 2\ **Last updated:** [November 26, 2018, 9:07am UTC](https://discuss.elastic.co/t/max-number-of-elasticsearch-data-nodes/158133 "2018-11-26T09:07:58Z")
Is there any limit on the number of data nodes which can be used in a elasticsearch cluster? Whether a cluster can have around 100 data nodes? --- ## [Facing error when trying to reindex from remote](https://discuss.elastic.co/t/facing-error-when-trying-to-reindex-from-remote/158116)
**Author:** [@pradla](https://discuss.elastic.co/u/pradla)\ **Replies:** 9\ **Last updated:** [November 26, 2018, 8:31am UTC](https://discuss.elastic.co/t/facing-error-when-trying-to-reindex-from-remote/158116 "2018-11-26T08:31:20Z")
I am trying to reindex from remote and I am facing an error. This was running fine for a few days now but suddenly I am facing this error my reindex code: curl -X POST "127.0.0.1:9201/\_reindex?pretty=true" -H 'Conten… --- ## [SSL: routines:OPENSSL\_internal:WRONG\_VERSION\_NUMBER](https://discuss.elastic.co/t/ssl-routineswrong-version-number/158019)
**Author:** [@Yashwant\_Shettigar](https://discuss.elastic.co/u/Yashwant_Shettigar)\ **Replies:** 2\ **Last updated:** [November 26, 2018, 7:00am UTC](https://discuss.elastic.co/t/ssl-routineswrong-version-number/158019 "2018-11-26T07:00:34Z")
I just restarted elasticsearch service and everything has stopped working. Below is the output that I get for : curl -XGET 'http://localhost:9200/filebeat-\*/\_search?pretty' Connection refused Connection refused Descr… --- ## [Encountered some problems in the horizontal expansion of Elasticsearch](https://discuss.elastic.co/t/encountered-some-problems-in-the-horizontal-expansion-of-elasticsearch/157562)
**Author:** [@sevenfirezzz](https://discuss.elastic.co/u/sevenfirezzz)\ **Replies:** 7\ **Last updated:** [November 26, 2018, 6:50am UTC](https://discuss.elastic.co/t/encountered-some-problems-in-the-horizontal-expansion-of-elasticsearch/157562 "2018-11-26T06:50:13Z")
My requirement is to do the horizontal expansion of Elasticsearch. Now I have two nodes and have created some indexes but the capacity is not enough. I found that after a new node were added into cluster, the shards th… --- ## [Visualize Bad Gateway and socket hang up errors](https://discuss.elastic.co/t/visualize-bad-gateway-and-socket-hang-up-errors/157828)
**Author:** [@Nikhil\_Utane](https://discuss.elastic.co/u/Nikhil_Utane)\ **Replies:** 7\ **Last updated:** [November 26, 2018, 5:57am UTC](https://discuss.elastic.co/t/visualize-bad-gateway-and-socket-hang-up-errors/157828 "2018-11-26T05:57:56Z")
I am using ELK 6.3.1 and off late I have started getting below errors when I try to load any dashboard (including discover) for a relatively longer time span. Sometimes I get this error as well. The only error I se… --- ## [Match\_Phrase\_ Prefix](https://discuss.elastic.co/t/match-phrase-prefix/158114)
**Author:** [@saranjeet](https://discuss.elastic.co/u/saranjeet)\ **Replies:** 0\ **Last updated:** [November 26, 2018, 5:34am UTC](https://discuss.elastic.co/t/match-phrase-prefix/158114 "2018-11-26T05:34:27Z")
Hi I wanted to use match\_phrase\_prefix in query for getting result,but it is giving me empty result while that particular match is available in the array of msid 7268 which is having value "0aadu" please can any body h… --- ## [Reindex from remote error: Could not resolve host](https://discuss.elastic.co/t/reindex-from-remote-error-could-not-resolve-host/157216)
**Author:** [@pradla](https://discuss.elastic.co/u/pradla)\ **Replies:** 5\ **Last updated:** [November 26, 2018, 5:31am UTC](https://discuss.elastic.co/t/reindex-from-remote-error-could-not-resolve-host/157216 "2018-11-26T05:31:55Z")
Hi, I am trying to upgrade elasticsearch 1.4.4 to 6.5.0. Below are the steps I followed: Started a new 6.5.0 cluster in addition to existing 1.4.4 configured it to run with logstash 6.5.0 and it is running well. I am… --- ## [Elastic UpdateByQuery with timestamp](https://discuss.elastic.co/t/elastic-updatebyquery-with-timestamp/157795)
**Author:** [@MaralErdene\_Tumursuh](https://discuss.elastic.co/u/MaralErdene_Tumursuh)\ **Replies:** 2\ **Last updated:** [November 26, 2018, 3:51am UTC](https://discuss.elastic.co/t/elastic-updatebyquery-with-timestamp/157795 "2018-11-26T03:51:43Z")
Hi all, I'm using UpdateByQuery from java api. Then i'm setting timestamp value to date field. But this error returned. ScriptException\[compile error\]; nested: IllegalArgumentException\[invalid sequence of tokens near \[… --- ## [Show first especific documents](https://discuss.elastic.co/t/show-first-especific-documents/156378)
**Author:** [@BlindCode](https://discuss.elastic.co/u/BlindCode)\ **Replies:** 8\ **Last updated:** [November 26, 2018, 3:41am UTC](https://discuss.elastic.co/t/show-first-especific-documents/156378 "2018-11-26T03:41:25Z")
Hello Guys! I'm creating an autocomplete query for hotels and destinations. I want than when i type Can or Canc i see Cancun in the first results of my query. I already have a list of popular "citys and hotels" th… --- ## [NEST 6x, ScrollAll\](https://discuss.elastic.co/t/nest-6x-scrollall-t-tresult/157691)
**Author:** [@TheKahuna](https://discuss.elastic.co/u/TheKahuna)\ **Replies:** 1\ **Last updated:** [November 26, 2018, 2:37am UTC](https://discuss.elastic.co/t/nest-6x-scrollall-t-tresult/157691 "2018-11-26T02:37:42Z")
Hi. I'm currently updating elastic from v1.7 to 6.4, and of course, also updating the NEST in the code. The ScrollAll only accepts T, is there any plans to also give a type out (TResult), this was on the 1.7 version, an… --- ## [CPU usage is 100% under load](https://discuss.elastic.co/t/cpu-usage-is-100-under-load/158099)
**Author:** [@eladis](https://discuss.elastic.co/u/eladis)\ **Replies:** 1\ **Last updated:** [November 26, 2018, 12:43am UTC](https://discuss.elastic.co/t/cpu-usage-is-100-under-load/158099 "2018-11-26T00:43:17Z")
CPU load is fine with less traffic. But once traffic gets high, ES uses 100% CPU. CPU usage becomes normal once traffic gets less. RAM usage is normal always. We have millions of docs. We currently have only one node. Is… --- ## [Running slow log for long periods of times](https://discuss.elastic.co/t/running-slow-log-for-long-periods-of-times/158098)
**Author:** [@Jacques\_du\_Plessis](https://discuss.elastic.co/u/Jacques_du_Plessis)\ **Replies:** 0\ **Last updated:** [November 25, 2018, 6:12pm UTC](https://discuss.elastic.co/t/running-slow-log-for-long-periods-of-times/158098 "2018-11-25T18:12:22Z")
I enabled slow, for debugging purposes, What will the impact be if I run it for long periods of times. Will there be a performance hit? Also, what is the best practice in regards to the log files are they basically onl… --- ## [Create alias on a composed field](https://discuss.elastic.co/t/create-alias-on-a-composed-field/158068)
**Author:** [@rschirin](https://discuss.elastic.co/u/rschirin)\ **Replies:** 1\ **Last updated:** [November 25, 2018, 3:58pm UTC](https://discuss.elastic.co/t/create-alias-on-a-composed-field/158068 "2018-11-25T15:58:44Z")
Hi all, I'm trying to create an alias on a specific field to use the Control Visualization on two different indices. This is my scenario: Index1(created using Packetbeat) : Index2 (created simple with filebeat+logstas… --- ## [Should BulkProcessor And RestHighLevelClient be shared in multi-thread?](https://discuss.elastic.co/t/should-bulkprocessor-and-resthighlevelclient-be-shared-in-multi-thread/158084)
**Author:** [@Yi\_Jiang](https://discuss.elastic.co/u/Yi_Jiang)\ **Replies:** 0\ **Last updated:** [November 25, 2018, 8:14am UTC](https://discuss.elastic.co/t/should-bulkprocessor-and-resthighlevelclient-be-shared-in-multi-thread/158084 "2018-11-25T08:14:23Z")
In elasticsearch wiki, the BulkProcessor and the RestHighLevelClient are all thread safe, so they can be applied in multi-thread. In my application, I want to improve bulk perforance, so I want to use multi-thread. Als… --- ## [Exact match of keywords & score weight keywords](https://discuss.elastic.co/t/exact-match-of-keywords-score-weight-keywords/157900)
**Author:** [@basvd](https://discuss.elastic.co/u/basvd)\ **Replies:** 2\ **Last updated:** [November 24, 2018, 5:21pm UTC](https://discuss.elastic.co/t/exact-match-of-keywords-score-weight-keywords/157900 "2018-11-24T17:21:01Z")
Two small questions: The first document has a match on "java-8", but I would only like to match on "java". Same for the second document with docker. How can I filter on the exact keywords? Should I change the mapping… --- ## [Remote reindex](https://discuss.elastic.co/t/remote-reindex/158059)
**Author:** [@sasikumar](https://discuss.elastic.co/u/sasikumar)\ **Replies:** 3\ **Last updated:** [November 24, 2018, 3:01pm UTC](https://discuss.elastic.co/t/remote-reindex/158059 "2018-11-24T15:01:41Z")
Dear Team, We have 2 elastic search environment and below are the details. We are trying to the remote reindex the data from old environment(ES-2.1) to new environment (ES-6.1.3). But we need to reindex the date only f… --- ## [Unable to get the timed value from log line or scripted fields on kibana elastic](https://discuss.elastic.co/t/unable-to-get-the-timed-value-from-log-line-or-scripted-fields-on-kibana-elastic/158058)
**Author:** [@yashraj](https://discuss.elastic.co/u/yashraj)\ **Replies:** 3\ **Last updated:** [November 24, 2018, 8:23am UTC](https://discuss.elastic.co/t/unable-to-get-the-timed-value-from-log-line-or-scripted-fields-on-kibana-elastic/158058 "2018-11-24T08:23:48Z")
Hi, I am using ELK version 6.1.1 with in my Ubuntu 16.04 LTS. The client side of this is for gathering analytics by graph and is already present in angular 4 framework. All the analytical graph visualization are coming … --- ## [Lucene Expressions: get ALL values from a Multi Value Field](https://discuss.elastic.co/t/lucene-expressions-get-all-values-from-a-multi-value-field/157640)
**Author:** [@seperman](https://discuss.elastic.co/u/seperman)\ **Replies:** 2\ **Last updated:** [November 24, 2018, 6:16am UTC](https://discuss.elastic.co/t/lucene-expressions-get-all-values-from-a-multi-value-field/157640 "2018-11-24T06:16:10Z")
Hello, How do I get all the values in a numeric multi value field in Lucene Expressions. It return the minimum value by default. And I can ask for mean or min or max but not ALL values. Basically I'm storing a vector a… --- ## [Delete older than days indices .wtacher-history-7](https://discuss.elastic.co/t/delete-older-than-days-indices-wtacher-history-7/157755)
**Author:** [@sasikumar](https://discuss.elastic.co/u/sasikumar)\ **Replies:** 2\ **Last updated:** [November 24, 2018, 5:46am UTC](https://discuss.elastic.co/t/delete-older-than-days-indices-wtacher-history-7/157755 "2018-11-24T05:46:42Z")
Dear Team, We are running ECE1.1.4 in production environment. All the cluster having the watcher history indices for last 6 months which eating system space and reducing the cluster performance. is there any way to set… --- ## [Convert Daily indices to weekly indexes](https://discuss.elastic.co/t/convert-daily-indices-to-weekly-indexes/155438)
**Author:** [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\ **Replies:** 3\ **Last updated:** [November 24, 2018, 3:10am UTC](https://discuss.elastic.co/t/convert-daily-indices-to-weekly-indexes/155438 "2018-11-24T03:10:10Z")
Hi, I see existing example for converting to monthly. But, I am looking for an example to convert daily indices to weekly indices. Thanks in advance. Maddy. --- ## [Issue in Scripted query result inside the scripted fields in elastic search and scripted query filters according to duration and conditions](https://discuss.elastic.co/t/issue-in-scripted-query-result-inside-the-scripted-fields-in-elastic-search-and-scripted-query-filters-according-to-duration-and-conditions/158038)
**Author:** [@yashraj](https://discuss.elastic.co/u/yashraj)\ **Replies:** 0\ **Last updated:** [November 23, 2018, 4:06pm UTC](https://discuss.elastic.co/t/issue-in-scripted-query-result-inside-the-scripted-fields-in-elastic-search-and-scripted-query-filters-according-to-duration-and-conditions/158038 "2018-11-23T16:06:48Z")
Hi, I am using ELK version 6.1.1 with in my Ubuntu 16.04 LTS. The client side of this for gathering analytics by graph is already present in angular 4 framework in which , all the analytical graph visualization are com… --- ## [How to Delete Data from Elasticsearch](https://discuss.elastic.co/t/how-to-delete-data-from-elasticsearch/158048)
**Author:** [@Jeff23](https://discuss.elastic.co/u/Jeff23)\ **Replies:** 1\ **Last updated:** [November 24, 2018, 3:07am UTC](https://discuss.elastic.co/t/how-to-delete-data-from-elasticsearch/158048 "2018-11-24T03:07:49Z")
Hello, I am new in Elasticsearch, I need to delete data from a cluster. This is what I use to query the data from Dremio: SELECT \* FROM data1."mydoc".doc How can I delete "mydoc" from Elasticsearch?? I have more info… --- ## [How to found empty field in elasticsearch](https://discuss.elastic.co/t/how-to-found-empty-field-in-elasticsearch/157898)
**Author:** [@mhsankar](https://discuss.elastic.co/u/mhsankar)\ **Replies:** 2\ **Last updated:** [November 23, 2018, 7:30pm UTC](https://discuss.elastic.co/t/how-to-found-empty-field-in-elasticsearch/157898 "2018-11-23T19:30:09Z")
Hi we have a mistake when insert data. a field data type is text . we insert "" for data. i cant search zero length field . how can found like this record? --- ## [Where have these plugins gone?](https://discuss.elastic.co/t/where-have-these-plugins-gone/158037)
**Author:** [@bogomip](https://discuss.elastic.co/u/bogomip)\ **Replies:** 4\ **Last updated:** [November 23, 2018, 4:47pm UTC](https://discuss.elastic.co/t/where-have-these-plugins-gone/158037 "2018-11-23T16:47:49Z")
I am trying to install the following plugins for elasticsearch 2.4.0 with bin/elasticsearch-plugin install \[plugin\_name\] https://download.elastic.co/elasticsearch/release/org/elasticsearch/plugin/head/2.4.0/head-2.4.0… --- ## [Why won't my Shards Assign?!](https://discuss.elastic.co/t/why-wont-my-shards-assign/158033)
**Author:** [@MultiplierMultiplier](https://discuss.elastic.co/u/MultiplierMultiplier)\ **Replies:** 2\ **Last updated:** [November 23, 2018, 4:35pm UTC](https://discuss.elastic.co/t/why-wont-my-shards-assign/158033 "2018-11-23T16:35:49Z")
I have a cluster with two Graylog nodes and three elasticsearch nodes. I have 4 primaries and 1 replica per index. I have recently been testing resillience by running 'service elasticsearch stop' to stop one of the ES n… --- ## [Match\_phrase query does not work when using context suggestions](https://discuss.elastic.co/t/match-phrase-query-does-not-work-when-using-context-suggestions/158030)
**Author:** [@Diyarbakir](https://discuss.elastic.co/u/Diyarbakir)\ **Replies:** 0\ **Last updated:** [November 23, 2018, 2:58pm UTC](https://discuss.elastic.co/t/match-phrase-query-does-not-work-when-using-context-suggestions/158030 "2018-11-23T14:58:10Z")
Hi, I am using ES version 5.6.2 We are using an index to store and retrieve our own list of suggestions. We use a match\_phrase query to find a specific suggestion and get it's ID. This works fine until we start adding … --- ## [Try to search with Synonyms in "Thai Word"](https://discuss.elastic.co/t/try-to-search-with-synonyms-in-thai-word/157523)
**Author:** [@Kittapas\_Jewjaitham](https://discuss.elastic.co/u/Kittapas_Jewjaitham)\ **Replies:** 1\ **Last updated:** [November 23, 2018, 2:55pm UTC](https://discuss.elastic.co/t/try-to-search-with-synonyms-in-thai-word/157523 "2018-11-23T14:55:50Z")
I'm using HPE CM with Elastic Search 5.6.3. and try to config elastic for archive synonym search. This is my command used to created index : PUT /hpecm\_dev { "settings": { "analysis": { "filter": { … --- ## [What is the maximum number of records i can store in a single node?](https://discuss.elastic.co/t/what-is-the-maximum-number-of-records-i-can-store-in-a-single-node/157997)
**Author:** [@Aditya\_Nadig](https://discuss.elastic.co/u/Aditya_Nadig)\ **Replies:** 1\ **Last updated:** [November 23, 2018, 2:20pm UTC](https://discuss.elastic.co/t/what-is-the-maximum-number-of-records-i-can-store-in-a-single-node/157997 "2018-11-23T14:20:05Z")
I am a newbie to elasticsearch . I am running a single node of elasticsearch in my pc . As soon as i reached 150000 records , elasticsearch started crashing . How do i go by solving it ? Elasticsearch version 6.5.1 --- ## [Is it safe to change field mapping from integer to long without index?](https://discuss.elastic.co/t/is-it-safe-to-change-field-mapping-from-integer-to-long-without-index/158021)
**Author:** [@timonwong](https://discuss.elastic.co/u/timonwong)\ **Replies:** 1\ **Last updated:** [November 23, 2018, 1:53pm UTC](https://discuss.elastic.co/t/is-it-safe-to-change-field-mapping-from-integer-to-long-without-index/158021 "2018-11-23T13:53:13Z")
Recently we encountered ES ingestion errors that complains: json\_parse\_exception: Numeric value (2147557547) out of range of int After some digging we found that one of our index field mapping uses "integer" data type,… --- ## [Snapshot restore is failing from 6.4.1 to 5.6.5](https://discuss.elastic.co/t/snapshot-restore-is-failing-from-6-4-1-to-5-6-5/157993)
**Author:** [@Rajesh\_Samala](https://discuss.elastic.co/u/Rajesh_Samala)\ **Replies:** 1\ **Last updated:** [November 23, 2018, 11:21am UTC](https://discuss.elastic.co/t/snapshot-restore-is-failing-from-6-4-1-to-5-6-5/157993 "2018-11-23T11:21:44Z")
I have taken snapshot for 6.4.1 elasticsearch cluster and downgraded elasticsearch to 5.6.5. After downgrade trying to restore the data from snapshot but got the below error. \[root@bolt45-ioc0 ~\]# curl -XPOST "localhost… [Previous page](https://discuss.elastic.co/c/elastic-stack/elasticsearch/6.md?page=1472) [Next page](https://discuss.elastic.co/c/elastic-stack/elasticsearch/6.md?page=1474)