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sqlserver.go
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package sqlserver
import (
"database/sql"
"sync"
"time"
_ "github.com/denisenkom/go-mssqldb" // go-mssqldb initialization
"github.com/influxdata/telegraf"
"github.com/influxdata/telegraf/filter"
"github.com/influxdata/telegraf/plugins/inputs"
)
// SQLServer struct
type SQLServer struct {
Servers []string `toml:"servers"`
QueryVersion int `toml:"query_version"`
AzureDB bool `toml:"azuredb"`
IncludeQuery []string `toml:"include_query"`
ExcludeQuery []string `toml:"exclude_query"`
queries MapQuery
isInitialized bool
}
// Query struct
type Query struct {
Script string
ResultByRow bool
OrderedColumns []string
}
// MapQuery type
type MapQuery map[string]Query
const defaultServer = "Server=.;app name=telegraf;log=1;"
const sampleConfig = `
## Specify instances to monitor with a list of connection strings.
## All connection parameters are optional.
## By default, the host is localhost, listening on default port, TCP 1433.
## for Windows, the user is the currently running AD user (SSO).
## See https://github.com/denisenkom/go-mssqldb for detailed connection
## parameters, in particular, tls connections can be created like so:
## "encrypt=true;certificate=<cert>;hostNameInCertificate=<SqlServer host fqdn>"
# servers = [
# "Server=192.168.1.10;Port=1433;User Id=<user>;Password=<pw>;app name=telegraf;log=1;",
# ]
## Optional parameter, setting this to 2 will use a new version
## of the collection queries that break compatibility with the original
## dashboards.
## Version 2 - is compatible from SQL Server 2012 and later versions and also for SQL Azure DB
query_version = 2
## If you are using AzureDB, setting this to true will gather resource utilization metrics
# azuredb = false
## Possible queries
## Version 2:
## - PerformanceCounters
## - WaitStatsCategorized
## - DatabaseIO
## - ServerProperties
## - MemoryClerk
## - Schedulers
## - SqlRequests
## - VolumeSpace
## - Cpu
## Version 1:
## - PerformanceCounters
## - WaitStatsCategorized
## - CPUHistory
## - DatabaseIO
## - DatabaseSize
## - DatabaseStats
## - DatabaseProperties
## - MemoryClerk
## - VolumeSpace
## - PerformanceMetrics
## A list of queries to include. If not specified, all the above listed queries are used.
# include_query = []
## A list of queries to explicitly ignore.
exclude_query = [ 'Schedulers' , 'SqlRequests']
`
// SampleConfig return the sample configuration
func (s *SQLServer) SampleConfig() string {
return sampleConfig
}
// Description return plugin description
func (s *SQLServer) Description() string {
return "Read metrics from Microsoft SQL Server"
}
type scanner interface {
Scan(dest ...interface{}) error
}
func initQueries(s *SQLServer) error {
s.queries = make(MapQuery)
queries := s.queries
// If this is an AzureDB instance, grab some extra metrics
if s.AzureDB {
queries["AzureDBResourceStats"] = Query{Script: sqlAzureDBResourceStats, ResultByRow: false}
queries["AzureDBResourceGovernance"] = Query{Script: sqlAzureDBResourceGovernance, ResultByRow: false}
}
// Decide if we want to run version 1 or version 2 queries
if s.QueryVersion == 2 {
queries["PerformanceCounters"] = Query{Script: sqlPerformanceCountersV2, ResultByRow: true}
queries["WaitStatsCategorized"] = Query{Script: sqlWaitStatsCategorizedV2, ResultByRow: false}
queries["DatabaseIO"] = Query{Script: sqlDatabaseIOV2, ResultByRow: false}
queries["ServerProperties"] = Query{Script: sqlServerPropertiesV2, ResultByRow: false}
queries["MemoryClerk"] = Query{Script: sqlMemoryClerkV2, ResultByRow: false}
queries["Schedulers"] = Query{Script: sqlServerSchedulersV2, ResultByRow: false}
queries["SqlRequests"] = Query{Script: sqlServerRequestsV2, ResultByRow: false}
queries["VolumeSpace"] = Query{Script: sqlServerVolumeSpaceV2, ResultByRow: false}
queries["Cpu"] = Query{Script: sqlServerCpuV2, ResultByRow: false}
} else {
queries["PerformanceCounters"] = Query{Script: sqlPerformanceCounters, ResultByRow: true}
queries["WaitStatsCategorized"] = Query{Script: sqlWaitStatsCategorized, ResultByRow: false}
queries["CPUHistory"] = Query{Script: sqlCPUHistory, ResultByRow: false}
queries["DatabaseIO"] = Query{Script: sqlDatabaseIO, ResultByRow: false}
queries["DatabaseSize"] = Query{Script: sqlDatabaseSize, ResultByRow: false}
queries["DatabaseStats"] = Query{Script: sqlDatabaseStats, ResultByRow: false}
queries["DatabaseProperties"] = Query{Script: sqlDatabaseProperties, ResultByRow: false}
queries["MemoryClerk"] = Query{Script: sqlMemoryClerk, ResultByRow: false}
queries["VolumeSpace"] = Query{Script: sqlVolumeSpace, ResultByRow: false}
queries["PerformanceMetrics"] = Query{Script: sqlPerformanceMetrics, ResultByRow: false}
}
filterQueries, err := filter.NewIncludeExcludeFilter(s.IncludeQuery, s.ExcludeQuery)
if err != nil {
return err
}
for query := range queries {
if !filterQueries.Match(query) {
delete(queries, query)
}
}
// Set a flag so we know that queries have already been initialized
s.isInitialized = true
return nil
}
// Gather collect data from SQL Server
func (s *SQLServer) Gather(acc telegraf.Accumulator) error {
if !s.isInitialized {
if err := initQueries(s); err != nil {
acc.AddError(err)
return err
}
}
if len(s.Servers) == 0 {
s.Servers = append(s.Servers, defaultServer)
}
var wg sync.WaitGroup
for _, serv := range s.Servers {
for _, query := range s.queries {
wg.Add(1)
go func(serv string, query Query) {
defer wg.Done()
acc.AddError(s.gatherServer(serv, query, acc))
}(serv, query)
}
}
wg.Wait()
return nil
}
func (s *SQLServer) gatherServer(server string, query Query, acc telegraf.Accumulator) error {
// deferred opening
conn, err := sql.Open("mssql", server)
if err != nil {
return err
}
defer conn.Close()
// execute query
rows, err := conn.Query(query.Script)
if err != nil {
return err
}
defer rows.Close()
// grab the column information from the result
query.OrderedColumns, err = rows.Columns()
if err != nil {
return err
}
for rows.Next() {
err = s.accRow(query, acc, rows)
if err != nil {
return err
}
}
return rows.Err()
}
func (s *SQLServer) accRow(query Query, acc telegraf.Accumulator, row scanner) error {
var columnVars []interface{}
var fields = make(map[string]interface{})
// store the column name with its *interface{}
columnMap := make(map[string]*interface{})
for _, column := range query.OrderedColumns {
columnMap[column] = new(interface{})
}
// populate the array of interface{} with the pointers in the right order
for i := 0; i < len(columnMap); i++ {
columnVars = append(columnVars, columnMap[query.OrderedColumns[i]])
}
// deconstruct array of variables and send to Scan
err := row.Scan(columnVars...)
if err != nil {
return err
}
// measurement: identified by the header
// tags: all other fields of type string
tags := map[string]string{}
var measurement string
for header, val := range columnMap {
if str, ok := (*val).(string); ok {
if header == "measurement" {
measurement = str
} else {
tags[header] = str
}
}
}
if query.ResultByRow {
// add measurement to Accumulator
acc.AddFields(measurement,
map[string]interface{}{"value": *columnMap["value"]},
tags, time.Now())
} else {
// values
for header, val := range columnMap {
if _, ok := (*val).(string); !ok {
fields[header] = (*val)
}
}
// add fields to Accumulator
acc.AddFields(measurement, fields, tags, time.Now())
}
return nil
}
func init() {
inputs.Add("sqlserver", func() telegraf.Input {
return &SQLServer{}
})
}
// Queries - V2
// Thanks Bob Ward (http://aka.ms/bobwardms)
// and the folks at Stack Overflow (https://github.com/opserver/Opserver/blob/9c89c7e9936b58ad237b30e6f4cc6cd59c406889/Opserver.Core/Data/SQL/SQLInstance.Memory.cs)
// for putting most of the memory clerk definitions online!
/*
The SQL scripts use a series of IF and CASE statemens to choose the correct query based on edition and version of SQL Server, below the meaning of the numbers:
EngineEdition:
1 = Personal or Desktop Engine (Not available in SQL Server 2005 (9.x) and later versions.)
2 = Standard (This is returned for Standard, Web, and Business Intelligence.)
3 = Enterprise (This is returned for Evaluation, Developer, and Enterprise editions.)
4 = Express (This is returned for Express, Express with Tools, and Express with Advanced Services)
5 = SQL Database
6 = Microsoft Azure Synapse Analytics (formerly SQL Data Warehouse)
8 = Managed Instance
ProductVersion:
see https://sqlserverbuilds.blogspot.com/ for all the details about the version number of SQL Server
*/
const sqlMemoryClerkV2 = `
SET DEADLOCK_PRIORITY -10;
DECLARE
@SqlStatement AS nvarchar(max)
,@MajorMinorVersion AS int = CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),4) AS int)*100 + CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),3) AS int)
,@Columns AS nvarchar(max) = ''
IF @MajorMinorVersion >= 1100
SET @Columns += N'mc.[pages_kb]';
ELSE
SET @Columns += N'mc.[single_pages_kb] + mc.[multi_pages_kb]';
SET @SqlStatement = N'
SELECT
''sqlserver_memory_clerks'' AS [measurement]
,REPLACE(@@SERVERNAME, ''\'', '':'') AS [sql_instance]
,DB_NAME() AS [database_name]
,ISNULL(clerk_names.[name],mc.[type]) AS [clerk_type]
,SUM(' + @Columns + N') AS [size_kb]
FROM sys.[dm_os_memory_clerks] AS mc WITH (NOLOCK)
LEFT OUTER JOIN ( VALUES
(''CACHESTORE_BROKERDSH'',''Service Broker Dialog Security Header Cache'')
,(''CACHESTORE_BROKERKEK'',''Service Broker Key Exchange Key Cache'')
,(''CACHESTORE_BROKERREADONLY'',''Service Broker (Read-Only)'')
,(''CACHESTORE_BROKERRSB'',''Service Broker Null Remote Service Binding Cache'')
,(''CACHESTORE_BROKERTBLACS'',''Broker dormant rowsets'')
,(''CACHESTORE_BROKERTO'',''Service Broker Transmission Object Cache'')
,(''CACHESTORE_BROKERUSERCERTLOOKUP'',''Service Broker user certificates lookup result cache'')
,(''CACHESTORE_CLRPROC'',''CLR Procedure Cache'')
,(''CACHESTORE_CLRUDTINFO'',''CLR UDT Info'')
,(''CACHESTORE_COLUMNSTOREOBJECTPOOL'',''Column Store Object Pool'')
,(''CACHESTORE_CONVPRI'',''Conversation Priority Cache'')
,(''CACHESTORE_EVENTS'',''Event Notification Cache'')
,(''CACHESTORE_FULLTEXTSTOPLIST'',''Full Text Stoplist Cache'')
,(''CACHESTORE_NOTIF'',''Notification Store'')
,(''CACHESTORE_OBJCP'',''Object Plans'')
,(''CACHESTORE_PHDR'',''Bound Trees'')
,(''CACHESTORE_SEARCHPROPERTYLIST'',''Search Property List Cache'')
,(''CACHESTORE_SEHOBTCOLUMNATTRIBUTE'',''SE Shared Column Metadata Cache'')
,(''CACHESTORE_SQLCP'',''SQL Plans'')
,(''CACHESTORE_STACKFRAMES'',''SOS_StackFramesStore'')
,(''CACHESTORE_SYSTEMROWSET'',''System Rowset Store'')
,(''CACHESTORE_TEMPTABLES'',''Temporary Tables & Table Variables'')
,(''CACHESTORE_VIEWDEFINITIONS'',''View Definition Cache'')
,(''CACHESTORE_XML_SELECTIVE_DG'',''XML DB Cache (Selective)'')
,(''CACHESTORE_XMLDBATTRIBUTE'',''XML DB Cache (Attribute)'')
,(''CACHESTORE_XMLDBELEMENT'',''XML DB Cache (Element)'')
,(''CACHESTORE_XMLDBTYPE'',''XML DB Cache (Type)'')
,(''CACHESTORE_XPROC'',''Extended Stored Procedures'')
,(''MEMORYCLERK_FILETABLE'',''Memory Clerk (File Table)'')
,(''MEMORYCLERK_FSCHUNKER'',''Memory Clerk (FS Chunker)'')
,(''MEMORYCLERK_FULLTEXT'',''Full Text'')
,(''MEMORYCLERK_FULLTEXT_SHMEM'',''Full-text IG'')
,(''MEMORYCLERK_HADR'',''HADR'')
,(''MEMORYCLERK_HOST'',''Host'')
,(''MEMORYCLERK_LANGSVC'',''Language Service'')
,(''MEMORYCLERK_LWC'',''Light Weight Cache'')
,(''MEMORYCLERK_QSRANGEPREFETCH'',''QS Range Prefetch'')
,(''MEMORYCLERK_SERIALIZATION'',''Serialization'')
,(''MEMORYCLERK_SNI'',''SNI'')
,(''MEMORYCLERK_SOSMEMMANAGER'',''SOS Memory Manager'')
,(''MEMORYCLERK_SOSNODE'',''SOS Node'')
,(''MEMORYCLERK_SOSOS'',''SOS Memory Clerk'')
,(''MEMORYCLERK_SQLBUFFERPOOL'',''Buffer Pool'')
,(''MEMORYCLERK_SQLCLR'',''CLR'')
,(''MEMORYCLERK_SQLCLRASSEMBLY'',''CLR Assembly'')
,(''MEMORYCLERK_SQLCONNECTIONPOOL'',''Connection Pool'')
,(''MEMORYCLERK_SQLGENERAL'',''General'')
,(''MEMORYCLERK_SQLHTTP'',''HTTP'')
,(''MEMORYCLERK_SQLLOGPOOL'',''Log Pool'')
,(''MEMORYCLERK_SQLOPTIMIZER'',''SQL Optimizer'')
,(''MEMORYCLERK_SQLQERESERVATIONS'',''SQL Reservations'')
,(''MEMORYCLERK_SQLQUERYCOMPILE'',''SQL Query Compile'')
,(''MEMORYCLERK_SQLQUERYEXEC'',''SQL Query Exec'')
,(''MEMORYCLERK_SQLQUERYPLAN'',''SQL Query Plan'')
,(''MEMORYCLERK_SQLSERVICEBROKER'',''SQL Service Broker'')
,(''MEMORYCLERK_SQLSERVICEBROKERTRANSPORT'',''Unified Communication Stack'')
,(''MEMORYCLERK_SQLSOAP'',''SQL SOAP'')
,(''MEMORYCLERK_SQLSOAPSESSIONSTORE'',''SQL SOAP (Session Store)'')
,(''MEMORYCLERK_SQLSTORENG'',''SQL Storage Engine'')
,(''MEMORYCLERK_SQLUTILITIES'',''SQL Utilities'')
,(''MEMORYCLERK_SQLXML'',''SQL XML'')
,(''MEMORYCLERK_SQLXP'',''SQL XP'')
,(''MEMORYCLERK_TRACE_EVTNOTIF'',''Trace Event Notification'')
,(''MEMORYCLERK_XE'',''XE Engine'')
,(''MEMORYCLERK_XE_BUFFER'',''XE Buffer'')
,(''MEMORYCLERK_XTP'',''In-Memory OLTP'')
,(''OBJECTSTORE_LBSS'',''Lbss Cache (Object Store)'')
,(''OBJECTSTORE_LOCK_MANAGER'',''Lock Manager (Object Store)'')
,(''OBJECTSTORE_SECAUDIT_EVENT_BUFFER'',''Audit Event Buffer (Object Store)'')
,(''OBJECTSTORE_SERVICE_BROKER'',''Service Broker (Object Store)'')
,(''OBJECTSTORE_SNI_PACKET'',''SNI Packet (Object Store)'')
,(''OBJECTSTORE_XACT_CACHE'',''Transactions Cache (Object Store)'')
,(''USERSTORE_DBMETADATA'',''DB Metadata (User Store)'')
,(''USERSTORE_OBJPERM'',''Object Permissions (User Store)'')
,(''USERSTORE_SCHEMAMGR'',''Schema Manager (User Store)'')
,(''USERSTORE_SXC'',''SXC (User Store)'')
,(''USERSTORE_TOKENPERM'',''Token Permissions (User Store)'')
,(''USERSTORE_QDSSTMT'',''QDS Statement Buffer (Pre-persist)'')
,(''CACHESTORE_QDSRUNTIMESTATS'',''QDS Runtime Stats (Pre-persist)'')
,(''CACHESTORE_QDSCONTEXTSETTINGS'',''QDS Unique Context Settings'')
,(''MEMORYCLERK_QUERYDISKSTORE'',''QDS General'')
,(''MEMORYCLERK_QUERYDISKSTORE_HASHMAP'',''QDS Query/Plan Hash Table'')
) AS clerk_names([system_name],[name])
ON mc.[type] = clerk_names.[system_name]
GROUP BY
ISNULL(clerk_names.[name], mc.[type])
HAVING
SUM(' + @Columns + N') >= 1024
OPTION(RECOMPILE);
'
EXEC(@SqlStatement)
`
// Conditional check based on Azure SQL DB OR On-prem SQL Server
// EngineEdition=5 is Azure SQL DB
const sqlDatabaseIOV2 = `
SET DEADLOCK_PRIORITY -10;
DECLARE
@SqlStatement AS nvarchar(max)
,@EngineEdition AS tinyint = CAST(SERVERPROPERTY('EngineEdition') AS int)
IF @EngineEdition = 5
BEGIN
SET @SqlStatement = '
SELECT
''sqlserver_database_io'' As [measurement]
,REPLACE(@@SERVERNAME,''\'','':'') AS [sql_instance]
,DB_NAME() as database_name
,vfs.database_id -- /*needed as tempdb is different for each Azure SQL DB as grouping has to be by logical server + db_name + database_id*/
,vfs.file_id
,vfs.io_stall_read_ms AS read_latency_ms
,vfs.num_of_reads AS reads
,vfs.num_of_bytes_read AS read_bytes
,vfs.io_stall_write_ms AS write_latency_ms
,vfs.num_of_writes AS writes
,vfs.num_of_bytes_written AS write_bytes
,vfs.io_stall_queued_read_ms AS [rg_read_stall_ms]
,vfs.io_stall_queued_write_ms AS [rg_write_stall_ms]
,CASE
WHEN (vfs.database_id = 0) THEN ''RBPEX''
ELSE b.logical_filename
END as logical_filename
,CASE
WHEN (vfs.database_id = 0) THEN ''RBPEX''
ELSE b.physical_filename
END as physical_filename
,CASE WHEN vfs.file_id = 2 THEN ''LOG'' ELSE ''DATA'' END AS file_type
,ISNULL(size,0)/128 AS current_size_mb
,ISNULL(FILEPROPERTY(b.logical_filename,''SpaceUsed'')/128,0) as space_used_mb
FROM [sys].[dm_io_virtual_file_stats](NULL,NULL) AS vfs
-- needed to get Tempdb file names on Azure SQL DB so you can join appropriately. Without this had a bug where join was only on file_id
LEFT OUTER join
(
SELECT DB_ID() as database_id, file_id, logical_filename=name COLLATE SQL_Latin1_General_CP1_CI_AS
, physical_filename = physical_name COLLATE SQL_Latin1_General_CP1_CI_AS, size from sys.database_files
where type <> 2
UNION ALL
SELECT 2 as database_id, file_id, logical_filename = name , physical_filename = physical_name, size
from tempdb.sys.database_files
) b ON b.database_id = vfs.database_id and b.file_id = vfs.file_id
where vfs.database_id IN (DB_ID(),0,2)
'
EXEC sp_executesql @SqlStatement
END
ELSE IF @EngineEdition IN (2,3,4) /*Standard,Enterprise,Express*/
BEGIN
DECLARE @MajorMinorVersion AS int = CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),4) AS int) * 100 + CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),3) AS int)
DECLARE @Columns as nvarchar(max) = ''
DECLARE @Tables as nvarchar(max) = ''
IF @MajorMinorVersion >= 1050 BEGIN
/*in [volume_mount_point] any trailing "\" char will be removed by telegraf */
SET @Columns += N',[volume_mount_point]'
SET @Tables += N'CROSS APPLY sys.dm_os_volume_stats(vfs.[database_id], vfs.[file_id]) AS vs'
END
IF @MajorMinorVersion > 1100 BEGIN
SET @Columns += N'
,vfs.io_stall_queued_read_ms AS [rg_read_stall_ms]
,vfs.io_stall_queued_write_ms AS [rg_write_stall_ms]'
END
SET @SqlStatement = N'
SELECT
''sqlserver_database_io'' AS [measurement]
,REPLACE(@@SERVERNAME,''\'','':'') AS [sql_instance]
,DB_NAME(vfs.[database_id]) AS [database_name]
,COALESCE(mf.[physical_name],''RBPEX'') AS [physical_filename] --RPBEX = Resilient Buffer Pool Extension
,COALESCE(mf.[name],''RBPEX'') AS [logical_filename] --RPBEX = Resilient Buffer Pool Extension
,mf.[type_desc] AS [file_type]
,vfs.[io_stall_read_ms] AS [read_latency_ms]
,vfs.[num_of_reads] AS [reads]
,vfs.[num_of_bytes_read] AS [read_bytes]
,vfs.[io_stall_write_ms] AS [write_latency_ms]
,vfs.[num_of_writes] AS [writes]
,vfs.[num_of_bytes_written] AS [write_bytes]'
+ @Columns + N'
FROM sys.dm_io_virtual_file_stats(NULL, NULL) AS vfs
INNER JOIN sys.master_files AS mf WITH (NOLOCK)
ON vfs.[database_id] = mf.[database_id] AND vfs.[file_id] = mf.[file_id]
'
+ @Tables;
EXEC sp_executesql @SqlStatement
END
`
// Conditional check based on Azure SQL DB, Azure SQL Managed instance OR On-prem SQL Server
// EngineEdition=5 is Azure SQL DB, EngineEdition=8 is Managed instance
const sqlServerPropertiesV2 = `
SET DEADLOCK_PRIORITY -10;
DECLARE
@SqlStatement AS nvarchar(max) = ''
,@EngineEdition AS tinyint = CAST(SERVERPROPERTY('EngineEdition') AS int)
IF @EngineEdition = 8 /*Managed Instance*/
SET @SqlStatement = 'SELECT TOP 1 ''sqlserver_server_properties'' AS [measurement],
REPLACE(@@SERVERNAME,''\'','':'') AS [sql_instance],
DB_NAME() as [database_name],
virtual_core_count AS cpu_count,
(SELECT process_memory_limit_mb FROM sys.dm_os_job_object) AS server_memory,
sku,
@EngineEdition AS engine_edition,
hardware_generation AS hardware_type,
reserved_storage_mb AS total_storage_mb,
(reserved_storage_mb - storage_space_used_mb) AS available_storage_mb,
(select DATEDIFF(MINUTE,sqlserver_start_time,GETDATE()) from sys.dm_os_sys_info) as uptime,
SERVERPROPERTY(''ProductVersion'') AS sql_version,
db_online,
db_restoring,
db_recovering,
db_recoveryPending,
db_suspect
FROM sys.server_resource_stats
CROSS APPLY
(SELECT SUM( CASE WHEN state = 0 THEN 1 ELSE 0 END ) AS db_online,
SUM( CASE WHEN state = 1 THEN 1 ELSE 0 END ) AS db_restoring,
SUM( CASE WHEN state = 2 THEN 1 ELSE 0 END ) AS db_recovering,
SUM( CASE WHEN state = 3 THEN 1 ELSE 0 END ) AS db_recoveryPending,
SUM( CASE WHEN state = 4 THEN 1 ELSE 0 END ) AS db_suspect,
SUM( CASE WHEN state = 6 or state = 10 THEN 1 ELSE 0 END ) AS db_offline
FROM sys.databases
) AS dbs
ORDER BY start_time DESC';
IF @EngineEdition = 5 /*Azure SQL DB*/
SET @SqlStatement = 'SELECT ''sqlserver_server_properties'' AS [measurement],
REPLACE(@@SERVERNAME,''\'','':'') AS [sql_instance],
DB_NAME() as [database_name],
(SELECT count(*) FROM sys.dm_os_schedulers WHERE status = ''VISIBLE ONLINE'') AS cpu_count,
(SELECT process_memory_limit_mb FROM sys.dm_os_job_object) AS server_memory,
slo.edition as sku,
@EngineEdition AS engine_edition,
slo.service_objective AS hardware_type,
CASE
WHEN slo.edition = ''Hyperscale'' then NULL
ELSE cast(DATABASEPROPERTYEX(DB_NAME(),''MaxSizeInBytes'') as bigint)/(1024*1024)
END AS total_storage_mb,
CASE
WHEN slo.edition = ''Hyperscale'' then NULL
ELSE
(cast(DATABASEPROPERTYEX(DB_NAME(),''MaxSizeInBytes'') as bigint)/(1024*1024)-
(select SUM(size/128 - CAST(FILEPROPERTY(name, ''SpaceUsed'') AS int)/128) FROM sys.database_files )
)
END AS available_storage_mb,
(select DATEDIFF(MINUTE,sqlserver_start_time,GETDATE()) from sys.dm_os_sys_info) as uptime
FROM sys.databases d
-- sys.databases.database_id may not match current DB_ID on Azure SQL DB
CROSS JOIN sys.database_service_objectives slo
WHERE d.name = DB_NAME() AND slo.database_id = DB_ID()';
ELSE IF @EngineEdition IN (2,3,4) /*Standard,Enterprise,Express*/
BEGIN
DECLARE @MajorMinorVersion AS int = CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),4) AS int)*100 + CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),3) AS int)
DECLARE @Columns AS nvarchar(MAX) = ''
IF @MajorMinorVersion >= 1050
SET @Columns = N',CASE [virtual_machine_type_desc]
WHEN ''NONE'' THEN ''PHYSICAL Machine''
ELSE [virtual_machine_type_desc]
END AS [hardware_type]';
ELSE /*data not available*/
SET @Columns = N',''<n/a>'' AS [hardware_type]';
SET @SqlStatement = 'SELECT ''sqlserver_server_properties'' AS [measurement],
REPLACE(@@SERVERNAME,''\'','':'') AS [sql_instance],
DB_NAME() as [database_name],
[cpu_count]
,(SELECT [total_physical_memory_kb] FROM sys.[dm_os_sys_memory]) AS [server_memory]
,CAST(SERVERPROPERTY(''Edition'') AS NVARCHAR) AS [sku]
,@EngineEdition AS [engine_edition]
,DATEDIFF(MINUTE,[sqlserver_start_time],GETDATE()) AS [uptime]
' + @Columns + ',
SERVERPROPERTY(''ProductVersion'') AS sql_version,
db_online,
db_restoring,
db_recovering,
db_recoveryPending,
db_suspect,
db_offline
FROM sys.[dm_os_sys_info]
CROSS APPLY
( SELECT SUM( CASE WHEN state = 0 THEN 1 ELSE 0 END ) AS db_online,
SUM( CASE WHEN state = 1 THEN 1 ELSE 0 END ) AS db_restoring,
SUM( CASE WHEN state = 2 THEN 1 ELSE 0 END ) AS db_recovering,
SUM( CASE WHEN state = 3 THEN 1 ELSE 0 END ) AS db_recoveryPending,
SUM( CASE WHEN state = 4 THEN 1 ELSE 0 END ) AS db_suspect,
SUM( CASE WHEN state = 6 or state = 10 THEN 1 ELSE 0 END ) AS db_offline
FROM sys.databases
) AS dbs';
END
EXEC sp_executesql @SqlStatement , N'@EngineEdition smallint', @EngineEdition = @EngineEdition;
`
//Recommend disabling this by default, but is useful to detect single CPU spikes/bottlenecks
const sqlServerSchedulersV2 string = `
SET DEADLOCK_PRIORITY - 10;
DECLARE
@SqlStatement AS nvarchar(max)
,@MajorMinorVersion AS int = CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),4) AS int)*100 + CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),3) AS int)
,@Columns AS nvarchar(MAX) = ''
IF @MajorMinorVersion >= 1300 BEGIN
SET @Columns += N',s.[total_cpu_usage_ms]
,s.[total_scheduler_delay_ms]'
END
SET @SqlStatement = N'
SELECT
''sqlserver_schedulers'' AS [measurement]
,REPLACE(@@SERVERNAME, ''\'', '':'') AS [sql_instance]
,DB_NAME() AS [database_name]
,cast(s.[scheduler_id] AS VARCHAR(4)) AS [scheduler_id]
,cast(s.[cpu_id] AS VARCHAR(4)) AS [cpu_id]
,s.[is_online]
,s.[is_idle]
,s.[preemptive_switches_count]
,s.[context_switches_count]
,s.[current_tasks_count]
,s.[runnable_tasks_count]
,s.[current_workers_count]
,s.[active_workers_count]
,s.[work_queue_count]
,s.[pending_disk_io_count]
,s.[load_factor]
,s.[yield_count]
' + @Columns + N'
FROM sys.dm_os_schedulers AS s'
EXEC sp_executesql @SqlStatement
`
const sqlPerformanceCountersV2 string = `
SET DEADLOCK_PRIORITY -10;
DECLARE
@SqlStatement AS nvarchar(max)
,@EngineEdition AS tinyint = CAST(SERVERPROPERTY('EngineEdition') AS int)
,@MajorMinorVersion AS int = CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),4) AS int)*100 + CAST(PARSENAME(CAST(SERVERPROPERTY('ProductVersion') as nvarchar),3) AS int)
,@Columns AS nvarchar(MAX) = ''
,@PivotColumns AS nvarchar(MAX) = ''
DECLARE @PCounters TABLE
(
object_name nvarchar(128),
counter_name nvarchar(128),
instance_name nvarchar(128),
cntr_value bigint,
cntr_type INT,
Primary Key(object_name, counter_name, instance_name)
);
SET @SqlStatement = N'SELECT DISTINCT
RTrim(spi.object_name) object_name,
RTrim(spi.counter_name) counter_name,'
+
CASE
WHEN @EngineEdition IN (5,8) --- needed to get actual DB Name for SQL DB/ Managed instance
THEN N'CASE WHEN (
RTRIM(spi.object_name) LIKE ''%:Databases''
OR RTRIM(spi.object_name) LIKE ''%:Database Replica''
OR RTRIM(spi.object_name) LIKE ''%:Catalog Metadata''
OR RTRIM(spi.object_name) LIKE ''%:Query Store''
OR RTRIM(spi.object_name) LIKE ''%:Columnstore''
OR RTRIM(spi.object_name) LIKE ''%:Advanced Analytics'')
AND TRY_CONVERT(uniqueidentifier, spi.instance_name)
IS NOT NULL -- for cloud only
THEN ISNULL(d.name,RTRIM(spi.instance_name)) -- Elastic Pools counters exist for all databases but sys.databases only has current DB value
WHEN RTRIM(object_name) LIKE ''%:Availability Replica''
AND TRY_CONVERT(uniqueidentifier, spi.instance_name) IS NOT NULL -- for cloud only
THEN ISNULL(d.name,RTRIM(spi.instance_name)) + RTRIM(SUBSTRING(spi.instance_name, 37, LEN(spi.instance_name)))
ELSE RTRIM(spi.instance_name)
END AS instance_name,'
ELSE 'RTRIM(spi.instance_name) as instance_name, '
END
+
'CAST(spi.cntr_value AS BIGINT) AS cntr_value,
spi.cntr_type
FROM sys.dm_os_performance_counters AS spi '
+
CASE
WHEN @EngineEdition IN (5,8) --- Join is ONLY for managed instance and SQL DB, not for on-prem
THEN CAST(N'LEFT JOIN sys.databases AS d
ON LEFT(spi.instance_name, 36) -- some instance_name values have an additional identifier appended after the GUID
= CASE WHEN -- in SQL DB standalone, physical_database_name for master is the GUID of the user database
d.name = ''master'' AND TRY_CONVERT(uniqueidentifier, d.physical_database_name) IS NOT NULL
THEN d.name
ELSE d.physical_database_name
END ' as NVARCHAR(MAX))
ELSE N''
END
SET @SqlStatement = @SqlStatement + CAST(N' WHERE (
counter_name IN (
''SQL Compilations/sec'',
''SQL Re-Compilations/sec'',
''User Connections'',
''Batch Requests/sec'',
''Logouts/sec'',
''Logins/sec'',
''Processes blocked'',
''Latch Waits/sec'',
''Full Scans/sec'',
''Index Searches/sec'',
''Page Splits/sec'',
''Page lookups/sec'',
''Page reads/sec'',
''Page writes/sec'',
''Readahead pages/sec'',
''Lazy writes/sec'',
''Checkpoint pages/sec'',
''Page life expectancy'',
''Log File(s) Size (KB)'',
''Log File(s) Used Size (KB)'',
''Data File(s) Size (KB)'',
''Transactions/sec'',
''Write Transactions/sec'',
''Active Temp Tables'',
''Temp Tables Creation Rate'',
''Temp Tables For Destruction'',
''Free Space in tempdb (KB)'',
''Version Store Size (KB)'',
''Memory Grants Pending'',
''Memory Grants Outstanding'',
''Free list stalls/sec'',
''Buffer cache hit ratio'',
''Buffer cache hit ratio base'',
''Backup/Restore Throughput/sec'',
''Total Server Memory (KB)'',
''Target Server Memory (KB)'',
''Log Flushes/sec'',
''Log Flush Wait Time'',
''Memory broker clerk size'',
''Log Bytes Flushed/sec'',
''Bytes Sent to Replica/sec'',
''Log Send Queue'',
''Bytes Sent to Transport/sec'',
''Sends to Replica/sec'',
''Bytes Sent to Transport/sec'',
''Sends to Transport/sec'',
''Bytes Received from Replica/sec'',
''Receives from Replica/sec'',
''Flow Control Time (ms/sec)'',
''Flow Control/sec'',
''Resent Messages/sec'',
''Redone Bytes/sec'',
''XTP Memory Used (KB)'',
''Transaction Delay'',
''Log Bytes Received/sec'',
''Log Apply Pending Queue'',
''Redone Bytes/sec'',
''Recovery Queue'',
''Log Apply Ready Queue'',
''CPU usage %'',
''CPU usage % base'',
''Queued requests'',
''Requests completed/sec'',
''Blocked tasks'',
''Active memory grant amount (KB)'',
''Disk Read Bytes/sec'',
''Disk Read IO Throttled/sec'',
''Disk Read IO/sec'',
''Disk Write Bytes/sec'',
''Disk Write IO Throttled/sec'',
''Disk Write IO/sec'',
''Used memory (KB)'',
''Forwarded Records/sec'',
''Background Writer pages/sec'',
''Percent Log Used'',
''Log Send Queue KB'',
''Redo Queue KB'',
''Mirrored Write Transactions/sec'',
''Group Commit Time'',
''Group Commits/Sec''
)
) OR (
object_name LIKE ''%User Settable%''
OR object_name LIKE ''%SQL Errors%''
) OR (
object_name LIKE ''%Batch Resp Statistics%''
) OR (
instance_name IN (''_Total'')
AND counter_name IN (
''Lock Timeouts/sec'',
''Number of Deadlocks/sec'',
''Lock Waits/sec'',
''Latch Waits/sec''
)
)
' as NVARCHAR(MAX))
INSERT INTO @PCounters
EXEC (@SqlStatement)
IF @MajorMinorVersion >= 1300 BEGIN
SET @Columns += N',rgwg.[total_cpu_usage_preemptive_ms] AS [Preemptive CPU Usage (time)]'
SET @PivotColumns += N',[Preemptive CPU Usage (time)]'
END
SET @SqlStatement = N'
SELECT
''SQLServer:Workload Group Stats'' AS [object]
,[counter]
,[instance]
,CAST(vs.[value] AS BIGINT) AS [value]
,1
FROM
(
SELECT
rgwg.name AS instance
,rgwg.total_request_count AS [Request Count]
,rgwg.total_queued_request_count AS [Queued Request Count]
,rgwg.total_cpu_limit_violation_count AS [CPU Limit Violation Count]
,rgwg.total_cpu_usage_ms AS [CPU Usage (time)]
,rgwg.total_lock_wait_count AS [Lock Wait Count]
,rgwg.total_lock_wait_time_ms AS [Lock Wait Time]
,rgwg.total_reduced_memgrant_count AS [Reduced Memory Grant Count]
' + @Columns + N'
FROM sys.[dm_resource_governor_workload_groups] AS rgwg
INNER JOIN sys.[dm_resource_governor_resource_pools] AS rgrp
ON rgwg.[pool_id] = rgrp.[pool_id]
) AS rg
UNPIVOT (
value FOR counter IN ( [Request Count], [Queued Request Count], [CPU Limit Violation Count], [CPU Usage (time)], [Lock Wait Count], [Lock Wait Time], [Reduced Memory Grant Count] ' + @PivotColumns + N')
) AS vs'
INSERT INTO @PCounters
EXEC( @SqlStatement )
SELECT 'sqlserver_performance' AS [measurement],
REPLACE(@@SERVERNAME,'\',':') AS [sql_instance],
DB_NAME() as [database_name],
pc.object_name AS [object],
pc.counter_name AS [counter],
CASE pc.instance_name WHEN '_Total' THEN 'Total' ELSE ISNULL(pc.instance_name,'') END AS [instance],
CAST(CASE WHEN pc.cntr_type = 537003264 AND pc1.cntr_value > 0 THEN (pc.cntr_value * 1.0) / (pc1.cntr_value * 1.0) * 100 ELSE pc.cntr_value END AS float(10)) AS [value],
-- cast to string as TAG
cast(pc.cntr_type as varchar(25)) as [counter_type]
FROM @PCounters AS pc
LEFT OUTER JOIN @PCounters AS pc1
ON (
pc.counter_name = REPLACE(pc1.counter_name,' base','')
OR pc.counter_name = REPLACE(pc1.counter_name,' base',' (ms)')
)
AND pc.object_name = pc1.object_name
AND pc.instance_name = pc1.instance_name
AND pc1.counter_name LIKE '%base'
WHERE pc.counter_name NOT LIKE '% base'
OPTION(RECOMPILE);
`
// Conditional check based on Azure SQL DB v/s the rest aka (Azure SQL Managed instance OR On-prem SQL Server)
// EngineEdition=5 is Azure SQL DB
const sqlWaitStatsCategorizedV2 string = `
SET DEADLOCK_PRIORITY -10;
IF SERVERPROPERTY('EngineEdition') != 5
SELECT
'sqlserver_waitstats' AS [measurement],
REPLACE(@@SERVERNAME,'\',':') AS [sql_instance],
DB_NAME() as [database_name],
ws.wait_type,
wait_time_ms,
wait_time_ms - signal_wait_time_ms AS [resource_wait_ms],
signal_wait_time_ms,
max_wait_time_ms,
waiting_tasks_count,
ISNULL(wc.wait_category,'OTHER') AS [wait_category]
FROM
sys.dm_os_wait_stats AS ws WITH (NOLOCK)
LEFT OUTER JOIN ( VALUES
('ASYNC_IO_COMPLETION','Other Disk IO'),
('ASYNC_NETWORK_IO','Network IO'),
('BACKUPIO','Other Disk IO'),
('BROKER_CONNECTION_RECEIVE_TASK','Service Broker'),
('BROKER_DISPATCHER','Service Broker'),
('BROKER_ENDPOINT_STATE_MUTEX','Service Broker'),
('BROKER_EVENTHANDLER','Service Broker'),
('BROKER_FORWARDER','Service Broker'),
('BROKER_INIT','Service Broker'),
('BROKER_MASTERSTART','Service Broker'),
('BROKER_RECEIVE_WAITFOR','User Wait'),
('BROKER_REGISTERALLENDPOINTS','Service Broker'),
('BROKER_SERVICE','Service Broker'),
('BROKER_SHUTDOWN','Service Broker'),
('BROKER_START','Service Broker'),
('BROKER_TASK_SHUTDOWN','Service Broker'),
('BROKER_TASK_STOP','Service Broker'),
('BROKER_TASK_SUBMIT','Service Broker'),
('BROKER_TO_FLUSH','Service Broker'),
('BROKER_TRANSMISSION_OBJECT','Service Broker'),
('BROKER_TRANSMISSION_TABLE','Service Broker'),
('BROKER_TRANSMISSION_WORK','Service Broker'),
('BROKER_TRANSMITTER','Service Broker'),
('CHECKPOINT_QUEUE','Idle'),
('CHKPT','Tran Log IO'),
('CLR_AUTO_EVENT','SQL CLR'),
('CLR_CRST','SQL CLR'),
('CLR_JOIN','SQL CLR'),
('CLR_MANUAL_EVENT','SQL CLR'),
('CLR_MEMORY_SPY','SQL CLR'),
('CLR_MONITOR','SQL CLR'),
('CLR_RWLOCK_READER','SQL CLR'),
('CLR_RWLOCK_WRITER','SQL CLR'),
('CLR_SEMAPHORE','SQL CLR'),
('CLR_TASK_START','SQL CLR'),
('CLRHOST_STATE_ACCESS','SQL CLR'),
('CMEMPARTITIONED','Memory'),
('CMEMTHREAD','Memory'),
('CXPACKET','Parallelism'),
('CXCONSUMER','Parallelism'),
('DBMIRROR_DBM_EVENT','Mirroring'),
('DBMIRROR_DBM_MUTEX','Mirroring'),
('DBMIRROR_EVENTS_QUEUE','Mirroring'),
('DBMIRROR_SEND','Mirroring'),
('DBMIRROR_WORKER_QUEUE','Mirroring'),
('DBMIRRORING_CMD','Mirroring'),
('DTC','Transaction'),
('DTC_ABORT_REQUEST','Transaction'),
('DTC_RESOLVE','Transaction'),
('DTC_STATE','Transaction'),
('DTC_TMDOWN_REQUEST','Transaction'),
('DTC_WAITFOR_OUTCOME','Transaction'),
('DTCNEW_ENLIST','Transaction'),
('DTCNEW_PREPARE','Transaction'),
('DTCNEW_RECOVERY','Transaction'),
('DTCNEW_TM','Transaction'),
('DTCNEW_TRANSACTION_ENLISTMENT','Transaction'),
('DTCPNTSYNC','Transaction'),
('EE_PMOLOCK','Memory'),
('EXCHANGE','Parallelism'),
('EXTERNAL_SCRIPT_NETWORK_IOF','Network IO'),
('FCB_REPLICA_READ','Replication'),
('FCB_REPLICA_WRITE','Replication'),
('FT_COMPROWSET_RWLOCK','Full Text Search'),
('FT_IFTS_RWLOCK','Full Text Search'),
('FT_IFTS_SCHEDULER_IDLE_WAIT','Idle'),
('FT_IFTSHC_MUTEX','Full Text Search'),
('FT_IFTSISM_MUTEX','Full Text Search'),
('FT_MASTER_MERGE','Full Text Search'),
('FT_MASTER_MERGE_COORDINATOR','Full Text Search'),
('FT_METADATA_MUTEX','Full Text Search'),
('FT_PROPERTYLIST_CACHE','Full Text Search'),
('FT_RESTART_CRAWL','Full Text Search'),
('FULLTEXT GATHERER','Full Text Search'),
('HADR_AG_MUTEX','Replication'),
('HADR_AR_CRITICAL_SECTION_ENTRY','Replication'),
('HADR_AR_MANAGER_MUTEX','Replication'),
('HADR_AR_UNLOAD_COMPLETED','Replication'),
('HADR_ARCONTROLLER_NOTIFICATIONS_SUBSCRIBER_LIST','Replication'),
('HADR_BACKUP_BULK_LOCK','Replication'),
('HADR_BACKUP_QUEUE','Replication'),
('HADR_CLUSAPI_CALL','Replication'),
('HADR_COMPRESSED_CACHE_SYNC','Replication'),
('HADR_CONNECTIVITY_INFO','Replication'),
('HADR_DATABASE_FLOW_CONTROL','Replication'),
('HADR_DATABASE_VERSIONING_STATE','Replication'),
('HADR_DATABASE_WAIT_FOR_RECOVERY','Replication'),
('HADR_DATABASE_WAIT_FOR_RESTART','Replication'),
('HADR_DATABASE_WAIT_FOR_TRANSITION_TO_VERSIONING','Replication'),
('HADR_DB_COMMAND','Replication'),
('HADR_DB_OP_COMPLETION_SYNC','Replication'),
('HADR_DB_OP_START_SYNC','Replication'),
('HADR_DBR_SUBSCRIBER','Replication'),
('HADR_DBR_SUBSCRIBER_FILTER_LIST','Replication'),
('HADR_DBSEEDING','Replication'),
('HADR_DBSEEDING_LIST','Replication'),
('HADR_DBSTATECHANGE_SYNC','Replication'),
('HADR_FABRIC_CALLBACK','Replication'),
('HADR_FILESTREAM_BLOCK_FLUSH','Replication'),
('HADR_FILESTREAM_FILE_CLOSE','Replication'),
('HADR_FILESTREAM_FILE_REQUEST','Replication'),
('HADR_FILESTREAM_IOMGR','Replication'),
('HADR_FILESTREAM_IOMGR_IOCOMPLETION','Replication'),
('HADR_FILESTREAM_MANAGER','Replication'),
('HADR_FILESTREAM_PREPROC','Replication'),
('HADR_GROUP_COMMIT','Replication'),
('HADR_LOGCAPTURE_SYNC','Replication'),
('HADR_LOGCAPTURE_WAIT','Replication'),
('HADR_LOGPROGRESS_SYNC','Replication'),
('HADR_NOTIFICATION_DEQUEUE','Replication'),
('HADR_NOTIFICATION_WORKER_EXCLUSIVE_ACCESS','Replication'),
('HADR_NOTIFICATION_WORKER_STARTUP_SYNC','Replication'),
('HADR_NOTIFICATION_WORKER_TERMINATION_SYNC','Replication'),
('HADR_PARTNER_SYNC','Replication'),