Incremental indexing using logstash handle delete scenario

问题

I am using below Logstash configuration for doing incremental indexing in this whenever a new row inserted or updated I am able to get those particular rows from MSSQL server and insert it as a document in elasticsearch but the challenge is with delete operation.

Logstash configuration file

input {
jdbc {
jdbc_driver_library => ""
jdbc_driver_class => "com.microsoft.sqlserver.jdbc.SQLServerDriver"
jdbc_connection_string => "jdbc:sqlserver://xxxxx;databaseName=xxxx;"
jdbc_user => "xxxx"
jdbc_paging_enabled => true
tracking_column => modified_date
tracking_column_type => "timestamp"
use_column_value => true
jdbc_password => "xxxx"
clean_run => true
schedule => "*/1 * * * *"
statement => "Select * from [dbo].[xxxx] where modified_date >:sql_last_value"
}
}

filter {
 mutate {
   remove_field => ["@version","@timestamp"]
 }
}

output {
elasticsearch {
hosts => "xxxxx"
user => "xxxxx"
password => "xxxxx"
index => "xxxxx"
document_type => "_doc"
document_id => "%{id}"

}
stdout { codec => rubydebug }
}

How to delete the documents which get deleted in MSSQL server with incremental indexing approach using Logstash. I am not having any idea how to handle particularly the delete operation.

Could anyone please suggest how to achieve this?

回答1:

Hi All i am able to handle Insert,Update and Delete using the below code. This may be helpful to some one who is trying the same

input {
jdbc {
jdbc_driver_library => ""
jdbc_driver_class => "com.microsoft.sqlserver.jdbc.SQLServerDriver"
jdbc_connection_string => "jdbc:sqlserver://xxxxx:1433;databaseName=xxxxx;"
jdbc_user => "xxxxx"
jdbc_paging_enabled => true
tracking_column => modified_date
tracking_column_type => "timestamp"
use_column_value => true
jdbc_password => "xxxxx"
clean_run => true
schedule => "*/1 * * * *"
statement => "Select * from [dbo].[xxxx] where modified_date >:sql_last_value"
}
}

filter {
if [is_deleted] {
        mutate {    
            add_field => {
                "[@metadata][elasticsearch_action]" => "delete"
            }
        }
        mutate {
            remove_field => [ "is_deleted","@version","@timestamp" ]
        }
    } else {
        mutate {    
            add_field => {
                "[@metadata][elasticsearch_action]" => "index"
            }
        }
        mutate {
            remove_field => [ "is_deleted","@version","@timestamp" ]
        }
    } 
}

output {
elasticsearch {
hosts => "xxxxx"
user => "elastic"
password => "xxxxx"
index => "xxxxx"
action => "%{[@metadata][elasticsearch_action]}"
document_type => "_doc"
document_id => "%{id}"

}
stdout { codec => rubydebug }
}

Thanks to all particularly Claudio M

来源：https://stackoverflow.com/questions/59854441/incremental-indexing-using-logstash-handle-delete-scenario

标签

ElasticSearch

logstash