fluent-plugin-mysql_explain

A Fluent filter plugin to execute EXPLAIN in mysql for a sql specified by the key.

Fluentd >= v0.12

gem install fluent-plugin-mysql_explain

<filter tag.dummy.*>
  type mysql_explain
  host db.localhost
  port 3306
  database mydb
  username user
  password pass
  sql_key sql
  added_key explain
</filter>

record before filter

{
  "sql": "select user,host from user;"
}

record after filter

{
  "sql": "select user,host from user;",
  "explain": "*************************** 1. row ***************************\n           id: 1
  select_type: SIMPLE\n        table: user\n         type: index\npossible_keys: NULL\n          key: PRIMARY\n      key_len: 228\n          ref: NULL\n         rows: 576\n        Extra: Using index"
}

• host (required)

  RDBMS host or ip

• port

  RDBMS port. Default is nil which means to use the MySQL defaullt port.

• database (required)

  RDBMS database name

• username (required)

  RDBMS login user name

• password

  RDBMS login password. Default is empty string.

• sql_key

  The key which is used to specify the explained sql in the record. Default is sql.

• added_key

  The key which was added to new record that holds the explained results. Default is explain.

Copyright (c) 2015 Takahiro Kikumoto. See LICENSE for details.