transaction_log Metricset for MSSQL Module (also db metricset removal)

CHANGELOG.next.asciidoc

@@ -207,6 +207,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Release http.server metricset as GA. {pull}10240[10240]
 - Making RabbitMQ Metricbeat module GA. {pull}10165[10165]
 - Release use of xpack.enabled: true flag in Elasticsearch and Kibana modules as GA. {pull}10222[10222]
+- Rename 'db' Metricset to 'transaction_log' in MSSQL Metricbeat module {pull}10109[10109]
 
 *Packetbeat*
 

metricbeat/docs/fields.asciidoc

@@ -16613,84 +16613,27 @@ MS SQL module
 
 
 
-[float]
-== db fields
-
-db metricset will fetch information about each db from a sql server
-
-
 [float]
 == database fields
 
-Database where the metrics have been fetched from
-
-
-*`mssql.db.database.id`*::
-+
---
-type: keyword
-
-The database ID
-
---
-
-[float]
-== log_space_usage fields
-
-Space usage information for the transaction log
-
-
-[float]
-== total fields
-
-Total space usage
+The database that the metrics is being referred to
 
 
-*`mssql.db.log_space_usage.total.bytes`*::
+*`mssql.database.id`*::
 +
 --
 type: long
 
-The size of the log
+Unique ID of the database inside MSSQL
 
 --
 
-[float]
-== used fields
-
-The occupied size of the log
-
-
-*`mssql.db.log_space_usage.used.bytes`*::
+*`mssql.database.name`*::
 +
 --
-type: long
-
-The occupied size of the log in bytes
-
---
-
-*`mssql.db.log_space_usage.used.pct`*::
-+
---
-type: float
-
-A percentaje of the occupied size of the log as a percent of the total log size
-
---
-
-[float]
-== since_last_backup fields
-
-The amount of space used since the last log backup
-
-
-*`mssql.db.log_space_usage.since_last_backup.bytes`*::
-+
---
-type: long
+type: keyword
 
-The amount of space used since the last log backup in bytes
+Name of the database
 
 --
 
@@ -16857,6 +16800,147 @@ Ideal number of pages in the buffer pool.
 
 --
 
+[float]
+== transaction_log fields
+
+transaction_log metricset will fetch information about the operation and transaction log of each database from a MSSQL instance
+
+
+[float]
+== space_usage fields
+
+Space usage information for the transaction log
+
+
+[float]
+== since_last_backup fields
+
+The amount of space used since the last log backup
+
+
+*`mssql.transaction_log.space_usage.since_last_backup.bytes`*::
++
+--
+type: long
+
+The amount of space used since the last log backup in bytes
+
+--
+
+[float]
+== total fields
+
+The size of the log
+
+
+*`mssql.transaction_log.space_usage.total.bytes`*::
++
+--
+type: long
+
+The size of the log in bytes
+
+--
+
+[float]
+== used fields
+
+The occupied size of the log
+
+
+*`mssql.transaction_log.space_usage.used.bytes`*::
++
+--
+type: long
+
+The occupied size of the log in bytes
+
+--
+
+*`mssql.transaction_log.space_usage.used.pct`*::
++
+--
+type: float
+
+A percentage of the occupied size of the log as a percent of the total log size
+
+--
+
+[float]
+== stats fields
+
+Returns summary level attributes and information on transaction log files of databases. Use this information for monitoring and diagnostics of transaction log health.
+
+
+[float]
+== active_size fields
+
+Total active transaction log size.
+
+
+*`mssql.transaction_log.stats.active_size.bytes`*::
++
+--
+type: long
+
+Total active transaction log size in bytes
+
+--
+
+*`mssql.transaction_log.stats.backup_time`*::
++
+--
+type: date
+
+Last transaction log backup time.
+
+--
+
+[float]
+== recovery_size fields
+
+Log size since log recovery log sequence number (LSN).
+
+
+*`mssql.transaction_log.stats.recovery_size.bytes`*::
++
+--
+type: long
+
+Log size in bytes since log recovery log sequence number (LSN).
+
+--
+
+[float]
+== since_last_checkpoint fields
+
+Log size since last checkpoint log sequence number (LSN).
+
+
+*`mssql.transaction_log.stats.since_last_checkpoint.bytes`*::
++
+--
+type: long
+
+Log size in bytes since last checkpoint log sequence number (LSN).
+
+--
+
+[float]
+== total_size fields
+
+Total transaction log size.
+
+
+*`mssql.transaction_log.stats.total_size.bytes`*::
++
+--
+type: long
+
+Total transaction log size in bytes.
+
+--
+
 [[exported-fields-munin]]
 == Munin fields
 

x-pack/metricbeat/metricbeat.reference.yml

@@ -507,7 +507,7 @@ metricbeat.modules:
 #-------------------------------- Mssql Module --------------------------------
 - module: mssql
   metricsets:
-    - "db"
+    - "transaction_log"
     - "performance"
   hosts: ["sqlserver://sa@localhost"]
   period: 10s

x-pack/metricbeat/module/mssql/_meta/config.yml

@@ -1,6 +1,6 @@
 - module: mssql
   metricsets:
-    - "db"
+    - "transaction_log"
     - "performance"
   hosts: ["sqlserver://sa@localhost"]
   period: 10s

x-pack/metricbeat/module/mssql/_meta/docs.asciidoc

@@ -8,8 +8,12 @@ The module is being tested with https://hub.docker.com/r/microsoft/mssql-server-
 [float]
 == Metricsets
 
-The following Metricset is already included:
+The following Metricsets are already included:
 
-=== `db`
+=== `transaction_log`
 
-`db` Metricset fetches a set of values from https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-db-log-space-usage-transact-sql?view=sql-server-2017[log space usage] which returns space usage information for the transaction log for each different database.
+`transaction_log` Metricset fetches information about the operation and transaction log of each MSSQL database in the monitored instance. All data is extracted from the https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/database-related-dynamic-management-views-transact-sql?view=sql-server-2017[Database Dynamic Management Views]
+
+=== `performance`
+
+`performance` Metricset fetches information from what's commonly known as https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-os-performance-counters-transact-sql?view=sql-server-2017[Performance Counters] in MSSQL.

x-pack/metricbeat/module/mssql/_meta/fields.yml

@@ -7,3 +7,13 @@
       type: group
       description: >
       fields:
+        - name: database
+          type: group
+          description: The database that the metrics is being referred to
+          fields:
+            - name: id
+              type: long
+              description: Unique ID of the database inside MSSQL
+            - name: name
+              type: keyword
+              description: Name of the database

x-pack/metricbeat/module/mssql/connection.go

@@ -7,6 +7,9 @@ package mssql
 import (
 	"database/sql"
 
+	// Register driver.
+	_ "github.com/denisenkom/go-mssqldb"
+
 	"github.com/pkg/errors"
 )