Logstash gsub whitespace. Currently supported are YAML, JSON, and CSV files.
Logstash gsub whitespace Therefore it is executed after gsub. I discarded a problem with ECS compatibility (I didn't think it was involved here, but just in case), so it must be due to the changes in Java or jruby, I don't know because I can't find any documentation. Currently supported are YAML, JSON, and CSV files. 29. "] but the fwdPtPrecision=0. Required Remove "ZC" characters of a field and coverting it into float { "field" => "12. Contribute to avwsolutions/logstash-codec-leef development by creating an account on GitHub. Sep 1, 2023 · the pipeline crash and the syntax doesn't seem to be good Logstash Reference: 7. @stockLines = @stockLines. I also tried gsub to replace for example , with Apr 17, 2019 · Dears , kindly i need some help for the below issue --> -In the RAW data file that i am using in filebeat , has variable # of fields , and i need to build the Grok Pattern in logstash. In this situation, you need to handle multiline events before Sep 16, 2020 · In a logstash configuration you cannot have a backslash at the end of a quoted string, it is always interpreted as escaping the quote. 3 Logstash Reference: 7. 19. E-mails looks like that (simplified and anonymized): Virus/malware : LNK_DUNIHI. You can specify dictionary entries in one of two ways: The dictionary configuration item can contain a hash representing the mapping. 0 Logstash Reference: 6. Topic Replies Views Activity Using gsub to replace an unknown amount of multiple white space to single whitespace Logstash 3 3039 October 25, 2019 logstash 7. gsub Value type is array There is no default value for this setting. ccc. It is fully free and fully open Mar 8, 2022 · How can I copy/use the contents of json fields and put it in a new field? or should I just use gsub and substitute the contents of the fields? All I am trying to achieve is like below and remove rest of the fields. Unfortunately I am unable to link any of the Jun 30, 2016 · Logstash custom date format and irregular spaces Asked 9 years, 4 months ago Modified 9 years, 4 months ago Viewed 1k times Jun 14, 2020 · Logstash can parse CSV and JSON files easily because data in those formats are perfectly organized and ready for Elasticsearch analysis. We can do it in these ways: Using gsub () function. co/guide/en/logstash/current/plugins-filters-mutate. Discover its syntax, use cases, and best practices. P12IP3, P12IP2, P13IP1 etc. Contribute to logstash-plugins/logstash-filter-kv development by creating an account on GitHub. Note that I've tried other mutate options like rename and it is working well. Aug 28, 2024 · These examples demonstrate the various ways to use Logstash for data masking and obfuscation. Example use-cases: Stream events to Dataproc via Pub/Sub for real-time analysis. If this is the problem, the simplest solution is simply to change your expression to replace periods as well: Jul 18, 2018 · Well I want to add a new line character at the end of each stockLine. May 12, 2020 · Hi, I want to remove spaces from my logs using gsub. I got around this by doing the following in your filter section. May 13, 2015 · I want to replace a single backslash and using valid regex "\" to do so. Converts a string field by applying a regular expression and a replacement. Mar 27, 2024 · To remove all whitespace from a string in R, you can use the base R function gsub () and functions from third-party libraries of R like stringr and stringi. Any other way or is that good enough? A general search and replace tool that uses a configured hash and/or a file to determine replacement values. Topic Replies Views Activity Logstash Filtering split Logstash 4 262 May 13, 2019 Gsub syntax to remove all before \ Logstash 3 1983 November 6, 2017 Mutate gsub regex pattern help Logstash 7 9503 February 1, 2021 Help with mutate gsub filter in logstash Logstash 4 688 October 25, 2018 Mutate gsub \ not Jun 13, 2019 · Now, to get rid of the \ in the json message filed, I tried the mutate + gsub as below (from the official docs) with [\] option which is not working! Need some help with this: A simple Logstash Gsub trickProblem Exception caught in json filter {JSON} :exception=>#<RuntimeError: Invalid FieldReference: proc. Here is the snippe Jan 19, 2024 · Topic Replies Views Activity Logstash is not taking in account whitespaces at the end of lines ? (grok filter) Logstash 3 311 December 29, 2021 How to filter Data with Spaces in Logstash Logstash 20 2440 April 4, 2019 Remove white spaces from fields - Logstash Logstash 8 5837 March 16, 2018 Issues with if statement, grok, and mutate Logstash 1 Oct 2, 2021 · Regex in logstash mutate gsub to replace a character in a string Asked 4 years, 1 month ago Modified 4 years, 1 month ago Viewed 2k times Managing Multiline Events Several use cases generate events that span multiple lines of text. Oct 29, 2015 · All dots in field names and tags have been replaced by _ (an underscore) This means you may need to change some conditionals in your Logstash configuration Some of your Kibana dashboards and/or queries may require change Any other outputs used will have to be adapted to use the new field names and tags. Feb 2, 2023 · Hence i wanted to substitute using gsub You can use rename the change the field name in mutate filter. so the gsub needs to find only cases of exactly \ then change those to a forward slash. Fortunately we have the regular expression library: Oniguruma. Please help to remove spaces in all logstash fields if there is any other approach. Doing so may result in the mixing of streams and corrupted event data. Sep 27, 2019 · Using gsub to replace an unknown amount of multiple white space to single whitespace Oct 27, 2015 · I am getting below grokparsefailure message when I tried multiple times, this is my first time using ELK any help is highly appreciated !! In my config I have gsub for pipe but I am not able to find any gsub for multiple spaces between the log messages, I think that is my problem I would like to use the gsub filter or a ruby code filter to do the following in logstash. Add this lines to your conf file. I had to add a unique delimiter before ingesting to deal with a whitespace issue. Example: filter { mutate { strip => ["field1", "field2"] } } Jul 2, 2019 · Correct Grok Pattern for an optional field including spaces Elastic Stack Logstash sandeepkanabar (Sandeep Kanabar) July 2, 2019, 7:10pm 1 Strip whitespace from field. Only fields that are strings or arrays of strings are supported. just one more query. May 3, 2023 · Hi there, I'm using Logstash to receive events from winlogbeat and send them to Kafka which will ultimately send them further. Outside of GCE, you will need to specify a Service Account JSON key file. """ is literally backslash and doublequote. You could try to use a gsub to remove the tab character, just use \t. g. the below code contain my requirement filter { mutate { gsub… If logstash is running within Google Compute Engine, the plugin will use GCE’s Application Default Credentials. Therefore I concatenate it with the newline character. 9k views Jan 2020 1 / 16 Nov 21, 2013 · You have to use the multiline filter with the correct pattern, to tell logstash, that every line with precending whitespace belongs to the line before. Multiline event processing is complex and relies on proper event ordering. You can replicate this behavior by running Logstash with Apr 24, 2020 · New replies are no longer allowed. I can't seem to do that anyway. 4 Logstash Reference: 6. I do not want to mess with the values and I'm only aware of the characters I want to filter out. 343,40ZC", "@timestamp" => 2020-01-06 Mar 21, 2024 · Hi! I am trying to parse a log that looks like this: 2024-03-21T09:33:14. Jun 19, 2014 · Replace Newlines I don't believe that grok matches across newlines. Events are batched and uploaded in the background for the sake of efficiency. The best way to guarantee ordered log processing is to implement the processing as early in the Gsub syntax This configuration takes an array consisting of 3 elements per field/substitution. 12] | Elastic input { stdin { codec => multiline { # lines starting with whitespace get appened to previous entry pattern => "^\\s" what => "previous" } } } However, I need to add more pattern matches. Sep 18, 2017 · Logstash 11 3214 December 14, 2017 Need help to create regex in logstash Logstash 2 1782 July 6, 2017 Logstash delete double quotes and parsing Logstash 1 629 January 10, 2019 Grok Debugger - hard to find identification string for my difficult example Logstash 11 632 June 20, 2019 What filter should i use to remove the "\" from my logfile Nov 23, 2020 · New replies are no longer allowed. json log file by adding a newline (pressing Enter key) and save – Logstash parses data and sends to Elastcsearch as expected (no gsub mutation is required in that case). Can I use standard regex? Aug 6, 2022 · I'm not sure your gsub will do what you want to do, it will match one or more spaces an replace each match with another whitespace, so if you have 3 whitespaces, it will match each one of them and replace by another whitespace, in the end you will have the same 3 whitespaces. That particular one says a literal dot, followed by zero or more characters (dot matches any character, which is why the literal dot has to be escaped). catalina. Apr 22, 2021 · Logs 3 2690 December 15, 2021 After Updating Logstash to 7. Method 1: Using gsub () Function gsub () function is used to remove the space by removing the space in the given string. To be able to correctly process those events at the end of the pipe, I need to : Convert the JSON array to a supported type (for example : string). Oct 31, 2025 · Strip whitespace from field. The line needs to be cleaned from whitespace and quotes before the CSV parser runs. *" is a regexp. Topic Replies Views Activity How to set Kv filter plugin to keep spaces in value Logstash 1 1210 February 24, 2017 Kv filter plugin when there are spaces in key and value Logstash 5 8997 July 6, 2017 Kv values include spaces Logstash 2 261 January 30, 2019 KV Filter to include spaces in Aug 1, 2018 · Hi, I am trying to ingest Java exceptions into Elasticsearch via logstash. e. And if possible, without knowing the input data in advance. *", "" ] } the second string ". 17. 4 Logstash Reference: 7. An external file (readable by logstash) may be specified in Feb 6, 2017 · The problem with trying to use gsub is that you must add a second backslash only when there is a single backslash. Jul 8, 2020 · To clean this up the following filter can be applied in the Logstash pipeline. By default the plugin is run in lenient mode, which ignores spaces that occur before or after the value-splitter. I have used an online tool to remove the fancy chars and it ingests properly. 5 Logstash Reference: 6. The plugin can subscribe to a topic and ingest messages. What types and values do you get on output? Topic Replies Views Activity Remove left whitespaces logstash Logstash 8 1987 June 9, 2022 Logstash Filtering split Logstash 4 274 May 13, 2019 Help with mutate gsub filter in logstash Logstash 4 716 October 25, 2018 Remove extra spaces between log messages using mutate & gsub Logstash 3 7024 July 6, 2017 Handle space in a field Logstash 3 270 May 3, 2023 · Hi there, I'm using Logstash to receive events from winlogbeat and send them to Kafka which will ultimately send them further. What types and values do you get on output? Topic Replies Views Activity Remove left whitespaces logstash Logstash 8 1987 June 9, 2022 Logstash Filtering split Logstash 4 274 May 13, 2019 Help with mutate gsub filter in logstash Logstash 4 716 October 25, 2018 Remove extra spaces between log messages using mutate & gsub Logstash 3 7024 July 6, 2017 Handle space in a field Logstash 3 270 Jul 21, 2021 · Hi I tried to change a value in a field for use it like id but i couldn't modify the field value with gsub The data i have in the field is like this: rId = ABC0_L123456_789012 and only data i want is 123456 from rId, t… Apr 9, 2019 · I believe the issue might be that either filebeat or logstash is cutting off a portion of my JSON and then it becomes invalid This occurs when I do not use a mutate filter and when I attempt to strip the JSON of all pretty fancy characters it still fails. By using the gsub, ruby, csv, and date filters, you can effectively protect sensitive data in log files and other data streams. Aug 18, 2016 · Logstash gsub: how to replace with backslash? Elastic Stack Logstash asp August 18, 2016, 3:28pm May 15, 2024 · I'm monitoring Windows File integrity and I want to replace some return carriage and tab that are present in the value of the field. Below is my multiline logs. 00. I would like to remove all white Jul 31, 2018 · Since your gsub expression only replaces whitespace, the period is not changed. Topic Replies Views Activity CSV filter how to replace new line with "," Logstash 1 1051 March 8, 2018 Gsub - Replace windows line terminators (\r\n) with unix (\n) Logstash 3 1116 July 28, 2021 Help with removing parts of log output Logstash 3 835 March 23, 2018 How to replace 'special Sep 4, 2019 · I am trying to remove a newline from my log because my grok pattern only works if the newline is not present. "\n" is literally backslash and lowercase n. In Kibana, they show up like this, \\n\\tat org. I think it would be something like this: Here above you can see that there are two IP fields P16IP1 and P17IP1, what I want is that both of them should be replaced by the gsub mutation filter such that all white space is removed in the values of the field. Please check below the input and output message generated by Logstash. Delete the whitespaces included in certain key fields. (The multiline stuff is done in Filebeat. Use Pub/Sub as an scalable buffer Oct 23, 2021 · Logstash 1 1564 July 6, 2017 Gsub replace backslash with forward slash Logstash 3 4538 June 16, 2020 Aug 28, 2015 · Hello, I use the IMAP input to retrieve some e-mail (generated by a Windows application) and I can't find how to manipulate the data to do what I want. What should I do? my data look like below: level="2" treatment="3" cmd1="\"D:\Program Files (x86)\a\safe\modules\setup. get ('stockInformation') + '\n' But it concatenates \\n instead of \n. Therefore I was trying if I could substitute \\n with \n. mutate { gsub => [ " Sep 16, 2022 · Hi, received log in json format, json filter parsed correctly but one field, "details", is in a unfinished/incorrect format lets say and json cant handle it, therefore i applied kv but cant get desired outcome - correct parsing. In this article, I will explain how to remove all whitespace from a string using the following methods with multiple examples. Example: Sep 27, 2023 · I'm creating an ingest pipeline in Elasticsearch with a gsub processor and I keep getting this error when testing the pipeline on a document. Now I'm using rabbitmq input and gsub is not working. How to remove that. 2 Logstash Nov 9, 2021 · The issue was solved using: # Remove number from uri and create a new field clean-uri if [i_uri] { mutate { add_field => { "clean-uri" => "%{i_uri}"} } mutate { gsub CEF codec for Logstash. I would to eliminate white space from column names. 181 1 2018-02-20T11 Jan 28, 2023 · The way the logstash configuration parser works you cannot have a backslash at the end of a quoted string. rename => {"old_field_name" => "new_field_name"} Thanks Musab. The situation is as follows, I have a pipeline where I send raw logs that are then Jan 20, 2022 · Introduction Logstash is commonly used for transforming data before it is sent to another system for storage, and so it is often well positioned for finding and replacing sensitive text, as may be required for GDPR compliance. The multi line log message (input to logstash) would look line this: A Logstash plugin to upload log events to Google Cloud Pubsub. Contribute to logstash-plugins/logstash-filter-mutate development by creating an account on GitHub. Each dictionary item is a key value pair. ddd Field1 : Some\\Information\\Separated\\By-Slash\\ File : F:\\Path to\\a\\specific file Date/Time : 27/08/2015 Aug 18, 2014 · Escaping quotes and control characters are impossible to do today in Logstash config. 6 regex isn't working the same Logstash 10 723 June 23, 2020 Hex Character removal using logstash Logstash 6 870 April 23, 2020 Issue with gsub and regex not affecting the resulting strings Logstash language-clients 5 312 September 2, 2022 Jul 8, 2019 · Replace text in a string using the Ruby Gsub Method. I have a filebeat configuration which matches multiline conguration. Match a regular expression against a field value and replace all matches with a replacement string. What comes in is something that looks like this: { "message" => "2014-10-20T20:52:56. In my message i have few fields which include " ". Input message: key1=first Jul 19, 2021 · How to remove backslash from weird formatted json Elastic Stack Logstash Jul 2021 1 / 6 Jul 2021 The problem comes when there is more than one line to the message, because it's also got a Java stacktrace. Please help. Can anyone help me grok 'sessionId' and 'user' out of this message? Hi, I am trying to use gsub to remove the prefix for the log line. Sep 12, 2017 · Hello, I'm trying to remove [] from my data as it is not supported in Kibana. for some of the line I am using grok, and for some of the logs I'll use KV to parse the data as it is in kv format in between of the log line, But due to multiple space in between the logs I'll face problem in parsing. This list summarizes the most important breaking changes in Logstash 7. Currently we're trying to do something like :slight_smile :slight_smile : mutate { add_field => { "event_type" => "" } gsub => [ "application","string[\\="]","" ] } What I want the above to do is replace the word string, backslashes, equal signs and Jan 23, 2018 · SHSauler commented on Apr 26, 2018 Could you please show how you work around this issue with gsub? I tried removing quote characters and whitespace (as per issue #44), but it still leads to _csvparsefailure. Logstash supports single and double-quoted text values, and we should support escapes in both the same exact way The logstash kv filter is not including values with spaces. We either have to guess or search the web, as the documentation fail to mention this. "column name with space" should be renamed to "column_name_with_space". Jan 12, 2025 · The reason for this approach is that if I manually modify the created . Generally, I'm doing it very well with gsub (with http input). For other kinds of fields no action will be taken. Is there a way we can test mutate functions locally to see if the gsub is working as expected ? LEEF codec for Logstash. level fields replacing the colour codes with nothing, thus removing them. ddd Field1 : Some\\Information\\Separated\\By-Slash\\ File : F:\\Path to\\a\\specific file Date/Time : 27/08/2015 Jul 5, 2019 · Hey Guys, New to Logstash, and I tried to read the documentation as much as possible but still confused. If the field is an array of string, all members of the array will be converted An option specifying whether to be lenient or strict with the acceptance of unnecessary whitespace surrounding the configured value-split sequence. 0 logstash with all default settings, fresh install use sudo systemctl start logstash to start, sudo status shows logstash actively running However, curl -XGET 'localhost:9600/?pretty' returns can not connect to 9600 do a netstat, seems no 9600 port is running at all Please advise Jan 6, 2020 · i have an issue using logstash mutate filter gsub. Jun 14, 2020 · Logstash can parse CSV and JSON files easily because data in those formats are perfectly organized and ready for Elasticsearch analysis. Meaning, key= key2=value is interpreted the same as key="key2=value". In these cases, we’ll need to parse the data to turn it into structured data using Logstash Grok or another 3rd party service like Coralogix. raw data --> 001:2019-04-17 00:00:00 003:201090743559 009:9116435510269278 010: 014:Vodafone 015:85 020:MT 036: 049: 053:367105977,367105978,367105979 001:2019-04-17 00:00:00 003:201090743559 009: May 2, 2018 · This topic was automatically closed 28 days after the last reply. Here Jun 4, 2025 · Learn how Logstash streamlines the collection, processing, and shipping of log data at scale, boosting observability and troubleshooting capabilities. Message payloads are serialized JSON representations of the events. Since I don't know the column names I can't manually supply column names. Jul 23, 2025 · In this article, we are going to see how to remove all the white space from character string in R Programming Language. The desired output should include spaces. This has worked . below is mentioned field that is parsed from json as this whole value: id:"KLJASDJLEIFA" creator:"user" expires:16639 description:"Test4" start_request:{artifacts Apr 14, 2020 · This topic was automatically closed 28 days after the last reply. Log file: Feb 20 13:00:10 172. exe\" /s /smartsile… Jan 31, 2019 · Using Custom Regex Patterns in Logstash Sometimes Logstash Grok doesn’t have the pattern we need. This tutorial will help you use We would like to show you a description here but the site won’t allow us. Unless those are not spaces but other character like tabs, I'm not sure the filter works with tabs. . 7 from 7. Topic Replies Views Activity Mutate gsub \ not working Logstash 4 1105 June 18, 2020 Replace field with regex group match Logstash 2 2826 July 6, 2017 How use gsub in a Ruby code Logstash 2 1060 September 25, 2019 Gsub not work Logstash 1 751 September 29, 2017 How to include % {} variable in the gsub Logstash May 25, 2021 · It looks like the configs described here no longer work; Config file for multiple multiline patterns There is now a codec for multiline inputs; Multiline codec plugin | Logstash Reference [7. How can I do that. Dec 30, 2020 · 简介 数据修改插件 Mutate 提供了丰富的基础数据处理能力。包括事件中字符串处理，类型转换、字段处理等。 处理顺序 配置文件中的数据修改按如下的顺序执行： coerce rename update replace convert gsub uppercase capitalize lowerca This is a Logstash input plugin for Google Pub/Sub. 0 I'm using the kv filter with the default settings, which means: value_split => "=" field_split => " " If I send a message with the format of key= without a value on the other side, it interprets the following key-value as the value for that key. This should go before the grok section: mutate { gsub => ["message", "\n", "LINE_BREAK"] } This allowed me to grok multilines as one big line rather than matching only till the "\n". Sometimes, though, we need to work with unstructured data, like plain-text logs. How can keep the quotes intact. 001 was changed to 0. 1 Logstash Reference: 7. In this article you'll learn exactly how to use this method, with clear examples so you can get the most out of it!. aname[2]>} Original Slack thread When you have proc. Gsub syntax This configuration takes an array consisting of 3 elements per field/substitution. elastic. ) The GREEDYDATA eats the JSON string and the following stack trace lines, leading, not surprisingly, to a JSON parse failure when I feed json_string through the JSON filter. still no luck. 6 Logstash Reference: 7. Using str_replace_all () function. 3. New replies are no longer allowed. I tried this: gsub => ["fwdPtPrecision", ". aname[2] and want to have proc_aname2 - you can use regex groups to automatically change all occurrences of that string: Solution Mar 9, 2021 · I am trying to filter some e-mails in logstash before sending it to ES. add_field is a common option for every kind of filter that is executed if the filter has been successfull. NOTE: this only works on leading and trailing whitespace. Therefore, in this blog I show how Logstash can make use of a ruby filter to scan through… I want to match a text and replace it with matched value using gsub regex. I just want to concatenate a newline character at the end. Jan 5, 2016 · From a quick glance at your config, "ttt" should be a date type, "eee" should be a string, and the gsub should work. Jul 5, 2019 · Hey Guys, New to Logstash, and I tried to read the documentation as much as possible but still confused. My reading is that it isn't supposed to do this, as GREEDYDATA is Strip whitespace from field. In 5 days ago · When you use Logstash to transfer data from a source to an Elasticsearch cluster, you may need to split data in the source into multiple values, assign the values to fields, and then write the fields to the Elasticsearch cluster in specific business scenarios. we ususally do it using $1 which is regex backward reference. It escapes the closing quote causing the parser to keep consuming your configuration as if it were part of the string, right up until the next unescaped quote or end of file. So you'll have to split that up into two mutate filters. Aug 12, 2019 · In a mutate like mutate { gsub => [ "someField", "\. In other words, for every substitution you want to make you add three elements to the gsub configuration array, specifically the name of the field, the regular expression to replace, and the substitution string. Can I achieve this in logstash? Thanks Nov 12, 2017 · The only way I see to parse this is to gsub submit date and done date to submit_date and done_date respectively and then apply kv. I applied gsub/mutate filter but the replacement string doesn't allow regex. 5 Logstash Reference: 7. connector. If you want to remove the space, dash, spac… Feb 7, 2023 · I have written as a grok mutate as below to remove a particular pattern: mutate { gsub => [ "message", "\nmytestpattern", "" ] } But I am unable to test it locally without pushing the code to a logstash pipeline . 2 Logstash Reference: 7. ,",". Also, I was inspired by this topic But the approach does not work. txt" By some conversion the masking backslash became a valid character. Nov 2, 2021 · This topic was automatically closed 28 days after the last reply. Contribute to logstash-plugins/logstash-codec-cef development by creating an account on GitHub. For that, I'm trying to use gsub in mutate in my logstash. Jul 11, 2017 · I am trying to ingest csv file into ES. The csv file contains undetermined column names in header. 0 Elasticsearch 7. This is a Logstash input plugin for Google Pub/Sub. In order to correctly handle these multiline events, Logstash needs to know how to tell which lines are part of a single event. Sep 7, 2018 · After I use the kv plugin to parse the log, I want to filter the value further. filter { mutate { gsub => ["message","[\\]",""] } } This would replace all the backslashes to empty string in the event. If you want to remove backslash from a field then use Sep 11, 2019 · Currently Our config file 000-grok. I can't figure out why, and I've tested different solutions (see below). The multi line log message (input to logstash) would look line this: Oct 23, 2021 · Logstash 1 1564 July 6, 2017 Gsub replace backslash with forward slash Logstash 3 4538 June 16, 2020 Aug 28, 2015 · Hello, I use the IMAP input to retrieve some e-mail (generated by a Windows application) and I can't find how to manipulate the data to do what I want. The main motivation behind the development of this plugin was to ingest Stackdriver Logging messages via the Exported Logs feature of Stackdriver Logging. Hi all, as the title says, I'm experiencing some issues with GSUB, moving from logstash 7 to logstash 8. Nov 20, 2018 · Assuming that this is an event that is being parsed from a log file, when you are processing your events, in the filter plugin, you can use the gsub in mutate filter plugin to process it appropriately. Nov 21, 2013 · You have to use the multiline filter with the correct pattern, to tell logstash, that every line with precending whitespace belongs to the line before. 89459] Metrics Logstash configuration examples These examples illustrate how you can configure Logstash to filter events, process Apache logs and syslog messages, and use conditionals to control what events are processed by a filter or output. Are you using this grok: Jul 1, 2020 · gsub is an option of the mutate filter. Topic Replies Views Activity Logstash - json filter removes backslash Logstash 5 1007 February 13, 2019 Logstash gsub filter with special characters not working Logstash 3 1293 June 5, 2018 Mutate gsub json with backslash Logstash 6 3825 May 14, 2019 Remove backslash "\\s" about in Logstash Mar 22, 2019 · Requirment: The requirement is to show the start 6 digits and last 4 digits and mask the remaining numbers of cardNo in logstash. Feb 1, 2018 · How to strip white space from all fields in logstash jainbhavya53 (Bhavya Jain) February 1, 2018, 6:51am 8 The multiline codec will collapse multiline messages and merge them into a single event. Jan 4, 2021 · [ "[message]", '"', "" ] @Badger, From my knowledge I am using the json filter. 1. conf file. CoyoteAdapter Learn about the Logstash mutate filter plugin, a versatile tool for modifying and transforming fields in your event data. May 19, 2017 · This topic was automatically closed 28 days after the last reply. Syntax: gsub (" ", "", input_string) where First parameter takes the Apr 27, 2018 · Hi guys, I'm trying to work around a logstash-filter-csv issue. by using this grok the quotes` which a part of message are getting replaced as well. May 29, 2024 · If this codec receives a payload from an input that is not a valid CEF message, then it will produce an event with the payload as the ‘message’ field and a ‘_cefparsefailure’ tag. Apr 23, 2019 · Right now in https://www. I have a field which is dynamically named eg. 8 Logstash Reference: 6. Logstash gsub: how to replace with backslash? Logstash Hi, I have following stuff in a field: "field_A" => "c:\\test\\test. i am getting wrong output with this. Your field doesn't yet exist when gsub is executed. 3 Logstash Reference: 6. The gsub function supports re2 syntax. Somehow \n Jul 25, 2020 · The /r is read directly as a spacing character so a white space and not as the text "/r" so by going with filter { mutate{ gsub => [ "message", "[\s+]", ""] } } the problem is solved ! Removing leading character and trailing 2 characters Elastic Stack Logstash 5. For the complete list, go to Logstash breaking changes. conf file has below content: filter { mutate { # squash multiple whitespace gsub => [ "message", " {2,}"," " ] # ditch the dashes Aug 3, 2018 · Logstash version 6. In cases where a regexp is used, you can use a character group that contains a single backslash -- " [\\]" If you want to do a split I think you will have to call a ruby filter. 6 Logstash Reference: 6. bbb. Forward events from an on-prem datacenter to the Logstash in the cloud. I tried with trim_key => "\s" in kv filter. Jul 4, 2018 · The payload you show contains neither slash nor backslash. html#plugins-filters-mutate-gsub , gsub show only how to replace strings directly, but it is useful and supported to use regexp references. to_s + event. SMIX Computer : HOSTNAME IP address : aaa. Have you tried. 7 Logstash Reference: 6. If you are using a Logstash input plugin that supports multiple hosts, such as the beats input plugin, you should not use the multiline codec to handle multiline events. For example, if logs in the source contain data that is separated by vertical bars (|), you can use Logstash to split the data into May 26, 2016 · I'm trying to write a mutate filter that will replace a certain set of symbols as well as a string in a certain field that we've defined. In this case, I apply the gsub to both the message and log. So from what I am seeing in the original events that is coming from the source there Remove left whitespaces logstash Logstash 8 1991 June 9, 2022 How to strip white space from all fields in logstash Logstash 6 5456 June 12, 2019 How to remove backslash from weird formatted json Logstash 5 5231 August 18, 2021 Stripping text from a JSON file Logstash 6 1704 April 19, 2017 Trying to convert JSON to new JSON outputs quoted JSON Jan 14, 2023 · Learn how to use the Logstash mutate filter to manipulate fields in your data. 187Z\\t77bfdcb9-15439-5d254-96r4a-12c543f7\\tDEBUG\\t[logMetrics] [171101645. I have one field still containing e-mail adresses and can't gsub it by mutate filter. gsub doesn't like this Feb 16, 2018 · Below is my logstash filter: Logstash Output: Here i want to remove spaces in all fields. Feb 23, 2018 · I would like to remove, if possible, the \\r\\n data and replace with a whitespace from the log file below. apache. How can I get rid of the double backslashes, so that I have only one (or two when masked)? Hi I'm trying to transform field values in order to get rid of some characters however I do not know the values. Which is not what I want . Oct 20, 2014 · I have a remote machine that combines multiline events and sends them across the lumberjack protocol. My current issue is probably that I don't know the "default field name… Jul 9, 2019 · Learn how to to force fields into specific data types and add, copy, and update specific fields by installing and setting up the Logstash Mutate Filter. It should work for both leading (on the left) and trailing (on the right) spaces. uefrzyjtqrrrzklqhveyqdpphikoxwqfchnugyxugxwaavxbdanbcijvmtibzvvimelfrp