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sqlserver.go
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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
## 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!
const sqlMemoryClerkV2 = `SET DEADLOCK_PRIORITY -10;
DECLARE @SQL NVARCHAR(MAX) = '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({pages_kb}) 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({pages_kb}) >= 1024
OPTION( RECOMPILE );'
IF CAST(LEFT(CAST(SERVERPROPERTY('productversion') as varchar), 2) AS INT) > 10 -- SQL Server 2008 Compat
SET @SQL = REPLACE(REPLACE(@SQL,'{pages_kb}','mc.pages_kb'),'"','''')
ELSE
SET @SQL = REPLACE(REPLACE(@SQL,'{pages_kb}','mc.single_pages_kb + mc.multi_pages_kb'),'"','''')
EXEC(@SQL)
`
// 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);
IF SERVERPROPERTY('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
BEGIN
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]
,IIF( RIGHT(vs.[volume_mount_point],1) = ''\'' /*Tag value cannot end with \ */
,LEFT(vs.[volume_mount_point],LEN(vs.[volume_mount_point])-1)
,vs.[volume_mount_point]
) AS [volume_mount_point]
,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]
'
+
CASE
WHEN LEFT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar) ,2) = '11'
/*SQL Server 2012 (ver 11.x) does not have [io_stall_queued_read_ms] and [io_stall_queued_write_ms]*/
THEN ''
ELSE N',vfs.io_stall_queued_read_ms AS [rg_read_stall_ms] ,vfs.io_stall_queued_write_ms AS [rg_write_stall_ms]'
END
+
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]
CROSS APPLY sys.dm_os_volume_stats(vfs.[database_id], vfs.[file_id]) AS vs
'
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 @sys_info TABLE (
cpu_count INT,
server_memory BIGINT,
sku NVARCHAR(64),
engine_edition SMALLINT,
hardware_type VARCHAR(16),
total_storage_mb BIGINT,
available_storage_mb BIGINT,
uptime INT
)
IF SERVERPROPERTY('EngineEdition') = 8 -- Managed Instance
INSERT INTO @sys_info ( cpu_count, server_memory, sku, engine_edition, hardware_type, total_storage_mb, available_storage_mb, uptime )
SELECT TOP(1)
virtual_core_count AS cpu_count,
(SELECT process_memory_limit_mb FROM sys.dm_os_job_object) AS server_memory,
sku,
cast(SERVERPROPERTY('EngineEdition') as smallint) 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
FROM sys.server_resource_stats
ORDER BY start_time DESC
IF SERVERPROPERTY('EngineEdition') = 5 -- Azure SQL DB
INSERT INTO @sys_info ( cpu_count, server_memory, sku, engine_edition, hardware_type, total_storage_mb, available_storage_mb, uptime )
SELECT TOP(1)
(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,
cast(SERVERPROPERTY('EngineEdition') as smallint) AS engine_edition,
slo.service_objective AS hardware_type,
cast(DATABASEPROPERTYEX(DB_NAME(),'MaxSizeInBytes') as bigint)/(1024*1024) AS total_storage_mb,
NULL AS available_storage_mb, -- Can we find out storage?
NULL 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
BEGIN
INSERT INTO @sys_info ( cpu_count, server_memory, sku, engine_edition, hardware_type, total_storage_mb, available_storage_mb, uptime )
SELECT cpu_count,
(SELECT total_physical_memory_kb FROM sys.dm_os_sys_memory) AS server_memory,
CAST(SERVERPROPERTY('Edition') AS NVARCHAR(64)) as sku,
CAST(SERVERPROPERTY('EngineEdition') as smallint) as engine_edition,
CASE virtual_machine_type_desc
WHEN 'NONE' THEN 'PHYSICAL Machine'
ELSE virtual_machine_type_desc
END AS hardware_type,
NULL,
NULL,
DATEDIFF(MINUTE,sqlserver_start_time,GETDATE())
FROM sys.dm_os_sys_info
END
SELECT 'sqlserver_server_properties' AS [measurement],
REPLACE(@@SERVERNAME,'\',':') AS [sql_instance],
DB_NAME() as [database_name],
s.cpu_count,
s.server_memory,
s.sku,
s.engine_edition,
s.hardware_type,
s.total_storage_mb,
s.available_storage_mb,
s.uptime,
SERVERPROPERTY('ProductVersion') AS sql_version,
db_online,
db_restoring,
db_recovering,
db_recoveryPending,
db_suspect,
db_offline
FROM (
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
CROSS APPLY (
SELECT cpu_count, server_memory, sku, engine_edition, hardware_type, total_storage_mb, available_storage_mb, uptime
FROM @sys_info
) AS s
`
//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);
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]
'
+
CASE
WHEN CAST(LEFT(CAST(SERVERPROPERTY('ProductVersion') AS nvarchar) ,2) AS int) >= 13
/*Only from SQL Server 2016+ (ver 13.x) [total_cpu_usage_ms] and [total_scheduler_delay_ms]*/
THEN N',s.[total_cpu_usage_ms], s.[total_scheduler_delay_ms]'
ELSE ''
END
+
N'
FROM sys.dm_os_schedulers AS s
'
EXEC sp_executesql @SqlStatement
`
const sqlPerformanceCountersV2 string = `SET DEADLOCK_PRIORITY -10;
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)
);
DECLARE @SQL NVARCHAR(MAX)
SET @SQL = N'SELECT DISTINCT
RTrim(spi.object_name) object_name,
RTrim(spi.counter_name) counter_name,'
+
CASE
WHEN CAST(SERVERPROPERTY('EngineEdition') AS int) 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 d.name
WHEN RTRIM(object_name) LIKE ''%:Availability Replica''
AND TRY_CONVERT(uniqueidentifier, spi.instance_name) IS NOT NULL -- for cloud only
THEN d.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 CAST(SERVERPROPERTY('EngineEdition') AS int) 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 @SQL = @SQL + 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 (@SQL)
SET @SQL = REPLACE('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)",
' + CASE WHEN SERVERPROPERTY('ProductMajorVersion') > 10 THEN 'rgwg.total_cpu_usage_preemptive_ms AS "Premptive CPU Usage (time)",' ELSE '' END + '
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"
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)], ' + CASE WHEN SERVERPROPERTY('ProductMajorVersion') > 10 THEN '[Premptive CPU Usage (time)], ' ELSE '' END + '[Lock Wait Count], [Lock Wait Time], [Reduced Memory Grant Count] )
) AS vs'
,'"','''')
INSERT INTO @PCounters
EXEC( @SQL )
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]
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'),
('HADR_READ_ALL_NETWORKS','Replication'),
('HADR_RECOVERY_WAIT_FOR_CONNECTION','Replication'),
('HADR_RECOVERY_WAIT_FOR_UNDO','Replication'),
('HADR_REPLICAINFO_SYNC','Replication'),
('HADR_SEEDING_CANCELLATION','Replication'),
('HADR_SEEDING_FILE_LIST','Replication'),
('HADR_SEEDING_LIMIT_BACKUPS','Replication'),
('HADR_SEEDING_SYNC_COMPLETION','Replication'),
('HADR_SEEDING_TIMEOUT_TASK','Replication'),
('HADR_SEEDING_WAIT_FOR_COMPLETION','Replication'),
('HADR_SYNC_COMMIT','Replication'),
('HADR_SYNCHRONIZING_THROTTLE','Replication'),
('HADR_TDS_LISTENER_SYNC','Replication'),
('HADR_TDS_LISTENER_SYNC_PROCESSING','Replication'),
('HADR_THROTTLE_LOG_RATE_GOVERNOR','Log Rate Governor'),
('HADR_TIMER_TASK','Replication'),
('HADR_TRANSPORT_DBRLIST','Replication'),
('HADR_TRANSPORT_FLOW_CONTROL','Replication'),
('HADR_TRANSPORT_SESSION','Replication'),
('HADR_WORK_POOL','Replication'),
('HADR_WORK_QUEUE','Replication'),
('HADR_XRF_STACK_ACCESS','Replication'),
('INSTANCE_LOG_RATE_GOVERNOR','Log Rate Governor'),
('IO_COMPLETION','Other Disk IO'),
('IO_QUEUE_LIMIT','Other Disk IO'),
('IO_RETRY','Other Disk IO'),
('LATCH_DT','Latch'),
('LATCH_EX','Latch'),
('LATCH_KP','Latch'),
('LATCH_NL','Latch'),
('LATCH_SH','Latch'),
('LATCH_UP','Latch'),
('LAZYWRITER_SLEEP','Idle'),
('LCK_M_BU','Lock'),
('LCK_M_BU_ABORT_BLOCKERS','Lock'),
('LCK_M_BU_LOW_PRIORITY','Lock'),
('LCK_M_IS','Lock'),
('LCK_M_IS_ABORT_BLOCKERS','Lock'),
('LCK_M_IS_LOW_PRIORITY','Lock'),
('LCK_M_IU','Lock'),
('LCK_M_IU_ABORT_BLOCKERS','Lock'),
('LCK_M_IU_LOW_PRIORITY','Lock'),
('LCK_M_IX','Lock'),
('LCK_M_IX_ABORT_BLOCKERS','Lock'),
('LCK_M_IX_LOW_PRIORITY','Lock'),
('LCK_M_RIn_NL','Lock'),
('LCK_M_RIn_NL_ABORT_BLOCKERS','Lock'),
('LCK_M_RIn_NL_LOW_PRIORITY','Lock'),
('LCK_M_RIn_S','Lock'),
('LCK_M_RIn_S_ABORT_BLOCKERS','Lock'),
('LCK_M_RIn_S_LOW_PRIORITY','Lock'),
('LCK_M_RIn_U','Lock'),
('LCK_M_RIn_U_ABORT_BLOCKERS','Lock'),
('LCK_M_RIn_U_LOW_PRIORITY','Lock'),
('LCK_M_RIn_X','Lock'),
('LCK_M_RIn_X_ABORT_BLOCKERS','Lock'),
('LCK_M_RIn_X_LOW_PRIORITY','Lock'),
('LCK_M_RS_S','Lock'),
('LCK_M_RS_S_ABORT_BLOCKERS','Lock'),
('LCK_M_RS_S_LOW_PRIORITY','Lock'),
('LCK_M_RS_U','Lock'),
('LCK_M_RS_U_ABORT_BLOCKERS','Lock'),
('LCK_M_RS_U_LOW_PRIORITY','Lock'),