Tamanho médio das cadeias de linhas nos buckets de hash da fonte de dados do SQL 2016
Microsoft.SQLServer.2016.Monitoring.HashIndexAvgChainLength.DataSource (DataSourceModuleType)
Fonte de dados de tamanho médio das cadeias de linhas nos buckets de hash
Element properties: Member Modules:
Overrideable Parameters:
Source Code: <DataSourceModuleType ID="Microsoft.SQLServer.2016.Monitoring.HashIndexAvgChainLength.DataSource" Accessibility="Internal">
<Configuration>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="IntervalSeconds" type="xsd:integer"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="TimeoutSeconds" type="xsd:integer"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SyncTime" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ComputerName" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SqlInstanceName" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ConnectionString" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ServiceName" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="EmptyBucketPercentThreshold" type="xsd:integer"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="AvgChainLengthThreshold" type="xsd:integer"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ErrorTopLines" type="xsd:integer"/>
</Configuration>
<OverrideableParameters>
<OverrideableParameter ID="IntervalSeconds" Selector="$Config/IntervalSeconds$" ParameterType="int"/>
<OverrideableParameter ID="TimeoutSeconds" Selector="$Config/TimeoutSeconds$" ParameterType="int"/>
<OverrideableParameter ID="SyncTime" Selector="$Config/SyncTime$" ParameterType="string"/>
<OverrideableParameter ID="EmptyBucketPercentThreshold" Selector="$Config/EmptyBucketPercentThreshold$" ParameterType="int"/>
<OverrideableParameter ID="AvgChainLengthThreshold" Selector="$Config/AvgChainLengthThreshold$" ParameterType="int"/>
<OverrideableParameter ID="ErrorTopLines" Selector="$Config/ErrorTopLines$" ParameterType="int"/>
</OverrideableParameters>
<ModuleImplementation>
<Composite>
<MemberModules>
<DataSource ID="Scheduler" TypeID="System!System.Scheduler">
<Scheduler>
<SimpleReccuringSchedule>
<Interval>$Config/IntervalSeconds$</Interval>
<SyncTime>$Config/SyncTime$</SyncTime>
</SimpleReccuringSchedule>
<ExcludeDates/>
</Scheduler>
</DataSource>
<ProbeAction ID="PS" TypeID="System!System.CommandExecuterProbePropertyBagBase">
<ApplicationName/>
<WorkingDirectory/>
<CommandLine>powershell.exe -NoLogo -NoProfile -Noninteractive "$ep = get-executionpolicy; if ($ep -gt 'RemoteSigned') {set-executionpolicy -Scope Process remotesigned} & '$$file/HashIndexAvgChainLengthDataSource.ps1$$' -computerName '$Config/ComputerName$' -instanceName '$Config/SqlInstanceName$' -connectionString '$Config/ConnectionString$' -serviceName '$Config/ServiceName$' -emptyBucketPercentThreshold '$Config/EmptyBucketPercentThreshold$' -avgChainLengthThreshold '$Config/AvgChainLengthThreshold$' -errorTopLines '$Config/ErrorTopLines$'</CommandLine>
<SecureInput/>
<TimeoutSeconds>$Config/TimeoutSeconds$</TimeoutSeconds>
<RequireOutput>true</RequireOutput>
<Files>
<File>
<Name>HashIndexAvgChainLengthDataSource.ps1</Name>
<Contents><Script> #HashIndexAvgChainLengthDataSource.ps1
param($computerName, $instanceName, $connectionString, $serviceName, [int]$emptyBucketPercentThreshold, [int]$avgChainLengthThreshold, [int]$errorTopLines)
$SCRIPT_EVENT_ID = 4211
$DEBUG_MODE = 0
$DEBUG_MODULE = "HashIndexAvgChainLengthDataSource.ps1"
$DEBUG_MSG = ""
$DEBUG_SA = $null
$DEBUG_PWD = $null
#Event Severity values
$INFORMATION_EVENT_TYPE = 0
$ERROR_EVENT_TYPE = 1
function Main() {
#if service is not in running state when exit without any error
$state = GetServiceState $computerName $serviceName $instanceName
if(($state -ne "Running") -and ($state -ne "Unknown"))
{
return
}
#
# Prepare MOM API and property bag object
#
$api = New-Object -comObject "MOM.ScriptAPI"
$errMsg = [string]::Empty
$hasErrors = $false
try {
$sqlConnection = SmartConnect $connectionString "master" $computerName $instanceName $DEBUG_SA $DEBUG_PWD
#Get all databases for Instance
$queryDb = "SELECT
d.database_id as 'dbId',
d.name as 'name'
FROM sys.databases d
WHERE d.[state] = 0
AND d.source_database_id is null AND d.collation_name is not null AND d.is_read_only = 0 AND d.is_in_standby = 0 AND d.user_access != 1"
$dbList = SqlQueryRows $sqlConnection $queryDb
if($dbList -eq $null) {
return
}
$bagCount = 0;
foreach ($row in $dbList) {
$result = $null
#If database has Hekaton tables
$databaseName = $row.name
$dbId = $row.dbId
try{
$queryHK = "use ""{0}"";
select object_id
from sys.tables
where is_memory_optimized = 1"
$hkVerify = SqlConnQueryRows $sqlConnection $queryHK $databaseName
if($hkVerify -eq $null) {
if($DEBUG_MODE -eq 1) {
$api.LogScriptEvent($DEBUG_MODULE, $SCRIPT_EVENT_ID, $INFORMATION_EVENT_TYPE, "There are no Hekaton tables in $databaseName")
}
}
else {
#
# If empty_bucket_percent is greater than $emptyBucketPercentThreshold (default = 10) AND avg_chain_length is greater than $avgChainLengthThreshold (default = 100), there are too many duplicates, and using a NONCLUSTERED index would be more appropriate.
#
$query = "use ""{0}"";
with bucket_cte as (
select
object_name(hs.object_id) as '_object_name',
i.name as 'index_name',
hs.total_bucket_count,
hs.empty_bucket_count,
floor((cast(empty_bucket_count as float)/total_bucket_count) * 100) as 'empty_bucket_percent',
hs.avg_chain_length,
hs.max_chain_length
from sys.dm_db_xtp_hash_index_stats as hs
join sys.indexes as i
on hs.object_id=i.object_id and hs.index_id=i.index_id
)
select top(@p1) * from bucket_cte
where empty_bucket_percent > @p2 and avg_chain_length > @p3
order by avg_chain_length desc, empty_bucket_percent asc"
$rows = SqlConnQueryRows $sqlConnection $query $databaseName $errorTopLines $emptyBucketPercentThreshold $avgChainLengthThreshold
if($rows -ne $null) {
foreach ($item in $rows) {
$objName = $item._object_name
$indName = $item.index_name
$percent = $item.empty_bucket_percent
$avgChainLen = $item.avg_chain_length
$result += "Table $objName has index $indName with empty_bucket_percent=$percent and avg_chain_length=$avgChainLen" + [Environment]::NewLine
}
}
}
#Verify status
if($result -eq $null) {
$result = "Health"
}
if($DEBUG_MODE -eq 1) {
$api.LogScriptEvent($DEBUG_MODULE, $SCRIPT_EVENT_ID, $INFORMATION_EVENT_TYPE, $result)
}
$bag = $api.CreatePropertyBag()
$bag.AddValue("DatabaseName", $databaseName)
$bag.AddValue("Status", $result)
$api.AddItem($bag)
$bagCount++;
}
catch {
$allowConnections = AlwaysOnReplicaAllowConnections $SqlConnection $dbId
if($allowConnections -ne 0)
{
$hasErrors = $true
$errMsg += "Error occurred during HashIndexAvgChainLength data source executing.{0}Computer: {1} {0}Reason: {2} {0}Position:{3} {0}Offset:{4} {0}Instance:{5} {0}Database: {6}{0}{0}" -f [Environment]::NewLine, $env:COMPUTERNAME, $_.Exception.Message, $_.InvocationInfo.ScriptLineNumber, $_.InvocationInfo.OffsetInLine, $instanceName, $databaseName
}
}
}
if ($bagCount -gt 0) {
$api.ReturnItems();
}
}
catch {
$hasErrors = $true
$errMsg += "Error occurred during HashIndexAvgChainLength data source executing.{0}Computer: {1} {0}Reason: {2} {0}Position:{3} {0}Offset:{4} {0}Instance:{5}" -f [Environment]::NewLine, $env:COMPUTERNAME, $_.Exception.Message, $_.InvocationInfo.ScriptLineNumber, $_.InvocationInfo.OffsetInLine, $instanceName
$errMsg += "{0}Detailed error output: {1}" -f [Environment]::NewLine, [String]::Join("{0}--------{0}" -f [Environment]::NewLine, $Error.ToArray())
}
finally {
if($sqlConnection -ne $null) {
$sqlConnection.Dispose()
}
}
if($hasErrors) {
$header = "Management Group: $Target/ManagementGroup/Name$. Script: {0} Module: {1} Version: {2}" -f ($MyInvocation.MyCommand).Name.ToString(), $DEBUG_MODULE, $MANAGEMENT_PACK_VERSION
$api.LogScriptEvent($header, $SCRIPT_EVENT_ID, $ERROR_EVENT_TYPE, $errMsg)
}
}#SQL2016Constants.ps1
$MANAGEMENT_PACK_VERSION = "6.7.20.0"
$ManagementGroupName = '$Target/ManagementGroup/Name$'
$ManagementGroupID = '$Target/ManagementGroup/Id$'
#SqlConnectionCommon.ps1
function SqlTcpPortIsEmpty($tcpPort) {
return [string]::IsNullOrEmpty($tcpPort) -or $tcpPort -eq '0'
}
function GetDataSource($dataSource, $tcpPort) {
$targetDataSource = $dataSource
if (!(SqlTcpPortIsEmpty $tcpPort)){
$nameParts = $dataSource.Split("{\}")
$targetDataSource = $nameParts[0] + "," + $tcpPort
}
return $targetDataSource
}
function GetSqlServerHostName(
[string] $strDNSComputerName,
[string] $instanceName,
[string] $namespace) {
$serviceName = GetSQLServiceName $instanceName
$escapedServiceName = EscapeWmiString $serviceName
$advProperties = Get-WmiObject -ComputerName $strDNSComputerName -Namespace ("ROOT\Microsoft\SqlServer\$namespace") -Class "SqlServiceAdvancedProperty" -Property "PropertyName", "PropertyNumValue", "PropertyStrValue" -Filter "SqlServiceType = 1 AND ServiceName = '$escapedServiceName' AND (PropertyName = 'Clustered' OR PropertyName = 'VSNAME')" -ErrorAction Stop
$isClustered = ($advProperties | Where {$_.PropertyName -eq "CLUSTERED"} | Select -First 1).PropertyNumValue
$hostName = 0
if($isClustered -eq 0){
$hostName = (Get-WmiObject -ComputerName $strDNSComputerName -Namespace ("ROOT\Microsoft\SqlServer\$namespace") -Class "SqlService" -Filter "SQLServiceType = 1 AND ServiceName = '$escapedServiceName'" -ErrorAction Stop | Select -First 1).HostName
}
else{
$hostName = ($advProperties | Where {$_.PropertyName -eq "VSNAME"} | Select -First 1).PropertyStrValue
}
return New-Object PSObject -Property @{HostName = $hostName; IsClustered = $isClustered}
}
function GetSqlServerHostNameEx(
[string] $strDNSComputerName,
[string] $instanceName,
[string] $namespace) {
$statePath = "SQL2016MP\SqlHostNames"
$hostValueName = EscapeCacheValueName $strDNSComputerName
$isClusteredValueName = $hostValueName + "_IsClustered"
$cacheExpirationTime = 7200
$isClustered = $null
$hostName = TryGetValueFromCache $statePath $hostValueName $cacheExpirationTime
if(![string]::IsNullOrEmpty($hostName)){
$isClustered = TryGetValueFromCache $statePath $isClusteredValueName $cacheExpirationTime
}
if(![string]::IsNullOrEmpty($hostName) -and ![string]::IsNullOrEmpty($isClustered) -and '01'.Contains($isClustered)){
return New-Object PSObject -Property @{HostName = $hostName; IsClustered = if($isClustered -eq '0') {$false} else {$true}}
}
$hostNameData = GetSqlServerHostName $strDNSComputerName $instanceName $namespace
PutValueToCache $statePath $hostValueName $hostNameData.HostName | Out-Null
PutValueToCache $statePath $isClusteredValueName "$(if($hostNameData.IsClustered){1} else {0})" | Out-Null
return $hostNameData
}
function BuildDataSourceFromParts($computerName, $instanceName, $tcpPort){
$dataSource = $computerName
if($instanceName -ne "MSSQLSERVER"){
$dataSource = "$computerName\$instanceName"
}
return GetDataSource $dataSource $tcpPort
}
function BuildConnectionString(
[String] $dataSource,
[string] $databaseName,
[String] $timeout = 100,
[String] $user = $null,
[String] $password = $null) {
$builder = New-Object System.Data.SqlClient.SqlConnectionStringBuilder
$builder["Data Source"] = $dataSource
$builder["Initial Catalog"] = $databaseName
$builder['Connection Timeout'] = $timeout
if (($user.Length -ne 0) -and ($password.Length -ne 0)) {
$builder["User ID"] = $user
$builder["Password"] = $password
} else {
$builder["Integrated Security"] = 'SSPI'
}
return $builder.ConnectionString
}
function GetEnabledSqlServerProtocols($computerName, $instanceName) {
$protocolsWmi = Get-WmiObject -ComputerName $computerName -Namespace "root\Microsoft\SqlServer\ComputerManagement13" -Class 'ServerNetworkProtocol' -Filter "InstanceName = '$instanceName'"
$protocolsArr = @()
if($protocolsWmi -ne $null)
{
foreach($protocol in $protocolsWmi){
if($protocol.Enabled){
$protocolsArr+=($protocol.ProtocolName.ToLower())
}
}
}
return (,$protocolsArr)
}
function GetSqlServerTcpIpSettings([string] $instanceName){
$ipSettings = @{}
$settingsWmi = Get-WmiObject -Namespace 'root\Microsoft\SqlServer\ComputerManagement13' -Class 'ServerNetworkProtocolProperty' -Filter "ProtocolName = 'Tcp' and InstanceName = '$instanceName'"
$listenAllObj = $settingsWmi | Where-Object {($_.ProtocolName -eq "Tcp") -and ($_.InstanceName -eq $instanceName) -and($_.PropertyName -eq "ListenOnAllIPs")}
$listenAll = $false
if($listenAllObj.PropertyNumVal -eq 1){
$listenAll = $true
}
if($listenAll) {
$portArr = @()
$tcpIpAll = $settingsWmi | Where-Object {($_.ProtocolName -eq "Tcp") -and ($_.InstanceName -eq $instanceName) -and ($_.IPAddressName -eq "IPAll") -and (($_.PropertyName -eq "TcpPort") -or ($_.PropertyName -eq "TcpDynamicPorts")) -and ($_.PropertyStrVal -ne '')}
foreach($port in $tcpIpAll)
{
$splittedPorts = $port.PropertyStrVal.Split("{,}", [System.StringSplitOptions]::RemoveEmptyEntries) | %{$_.Trim()} | ?{-not (SqlTcpPortIsEmpty $_)}
$portArr += $splittedPorts
}
$ipSettings.Add("IPAll", $portArr);
}
else{
$ipAddresses = ($settingsWmi | Where-Object { ($_.ProtocolName -eq "Tcp") -and ($_.InstanceName -eq $instanceName) -and($_.IPAddressName -ne "")-and($_.PropertyName -eq "Enabled") -and ($_.PropertyNumVal -eq 1)})
foreach($ipAddress in $ipAddresses){
$ipAddressName = $ipAddress.IPAddressName
$ip = $settingsWmi | Where-Object {($_.ProtocolName -eq "Tcp") -and ($_.InstanceName -eq $instanceName) -and($_.IPAddressName -eq $ipAddressName)-and( $_.PropertyName -eq "IpAddress") -and ($_.PropertyStrVal -ne '')} | select -ExpandProperty PropertyStrVal
$ports = $settingsWmi | Where-Object {($_.ProtocolName -eq "Tcp") -and ($_.InstanceName -eq $instanceName) -and($_.IPAddressName -eq $ipAddressName)-and( ($_.PropertyName -eq "TcpPort") -or ($_.PropertyName -eq "TcpDynamicPorts")) -and ($_.PropertyStrVal -ne '')}
$portArr = @()
foreach($port in $ports)
{
$splittedPorts = $port.PropertyStrVal.Split("{,}", [System.StringSplitOptions]::RemoveEmptyEntries) | %{$_.Trim()} | ?{-not (SqlTcpPortIsEmpty $_)}
$portArr += $splittedPorts
}
$ipSettings.Add($ip, $portArr);
}
}
return New-Object -TypeName PSObject -Property @{'ListenAllIPs' = $listenAll; 'IpSettings' = $ipSettings }
}
function SqlTryToConnectAndValidate(
[String] $dataSource,
[string] $databaseName,
[String] $hostName,
[String] $instanceName,
[string] $timeout = 30,
[String] $user = $null,
[String] $password = $null){
$connectionString = BuildConnectionString $dataSource $databaseName $timeout $user $password
$query = "SELECT SERVERPROPERTY('MachineName') AS ServerName, @@servicename AS InstanceName"
$sqlConnection = New-Object System.Data.SqlClient.SqlConnection ($connectionString)
$sqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter ($query,$sqlConnection)
$dataSet = New-Object System.Data.DataSet
try{
$sqlConnection.Open()
$sqlAdapter.Fill($dataSet) | Out-Null
$res = $dataSet.Tables | Select -First 1
if ($res -ne $null) {
$queryServerName = ($res | Select -ExpandProperty ServerName).ToUpperInvariant()
$queryInstanceName = ($res | Select -ExpandProperty InstanceName).ToUpperInvariant()
if (($hostName.ToUpperInvariant() -eq $queryServerName) -and ($instanceName.ToUpperInvariant() -eq $queryInstanceName)) {
return $sqlConnection;
}
throw "Connection target check failed: connected to $hostName\$instanceName, but got $queryServerName\$queryInstanceName."
}
}
catch{
$sqlConnection.Dispose()
throw
}
}
function SmartConnectNTE($connectionDataSource, $databaseName, $machineName, $instanceName, $debug_user = $null, $debug_password = $null){
try{
return SmartConnect $connectionDataSource $databaseName $machineName $instanceName $debug_user $debug_password
}
catch{}
return $null
}
function SmartConnect($connectionDataSource, $databaseName, $machineName, $instanceName, $debug_user = $null, $debug_password = $null){
$connectionString = [string]::Empty
$lastError = $null
$errorColl = @()
$targetDataSource = ""
$netBiosHostNameData = GetSqlServerHostNameEx $machineName $instanceName 'ComputerManagement13'
$netBiosHostName = $netBiosHostNameData.HostName
$dnsHostName = $machineName.Split(".")[0]
$enabledServerProtocols = $null
$connStr = $connectionDataSource
if(($netBiosHostName -eq $env:COMPUTERNAME) -and ($netBiosHostName -ne $dnsHostName) -and (!$netBiosHostNameData.IsClustered)) {
$enabledServerProtocols = GetEnabledSqlServerProtocols $machineName $instanceName
if($enabledServerProtocols -contains "sm") {
$connStr = 'lpc:' + (BuildDataSourceFromParts $netBiosHostName $instanceName '')
}
}
try{
$targetDataSource = GetDataSource $connStr ""
return SqlTryToConnectAndValidate $targetDataSource $databaseName $netBiosHostName $instanceName 15 $debug_user $debug_password
}
catch{
$lastError = $_.Exception
$errorColl += "Failed to connect to data source '$targetDataSource': $($_.Exception.Message)"
}
if($enabledServerProtocols -eq $null){
$enabledServerProtocols = GetEnabledSqlServerProtocols $machineName $instanceName
}
if ($enabledServerProtocols -contains "tcp") {
$tcpIpSettings = GetSqlServerTcpIpSettings $instanceName
$pathArray = $connectionDataSource.Split("{'\'}")
$targetName = $pathArray[0]
if ($tcpIpSettings.ListenAllIps) {
foreach($port in $tcpIpSettings.IpSettings["IPAll"]){
try {
$targetDataSource = GetDataSource $targetName $port
return SqlTryToConnectAndValidate $targetDataSource $databaseName $netBiosHostName $instanceName 10 $debug_user $debug_password
}
catch {
$lastError = $_.Exception
$errorColl += "Failed to connect to data source '$targetDataSource': $($_.Exception.Message)"
}
}
}
else{
$upc = New-Object "System.Collections.Generic.HashSet[string]"
foreach($portArr in $tcpIpSettings.IpSettings.Values){
if(($portArr.Length -gt 0) -and $upc.Add($portArr[0])){
try {
$targetDataSource = GetDataSource $targetName $portArr[0]
return SqlTryToConnectAndValidate $targetDataSource $databaseName $netBiosHostName $instanceName 10 $debug_user $debug_password
}
catch {
$lastError = $_.Exception
$errorColl += "Failed to connect to data source '$targetDataSource': $($_.Exception.Message)"
}
}
}
foreach($pair in $tcpIpSettings.IpSettings.GetEnumerator()){
foreach($port in $pair.Value){
try {
$targetDataSource = GetDataSource $pair.Key $port
return SqlTryToConnectAndValidate $targetDataSource $databaseName $netBiosHostName $instanceName 10 $debug_user $debug_password
}
catch {
$lastError = $_.Exception
$errorColl += "Failed to connect to data source '$targetDataSource': $($_.Exception.Message)"
}
}
}
}
}
throw [Exception] ("Cannot connect to the target Sql Server instance.`nConnection log:`n" + [string]::Join([Environment]::NewLine, $errorColl)) #, $lastError
}
function SqlQueryTablesCommon($sqlConnection, $inputQuery, [bool]$useDbName, $dbName, $queryParams){
$sqlCmd = New-Object System.Data.SqlClient.SqlCommand
$sqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$dataSet = New-Object System.Data.DataSet
try {
$query = $inputQuery
if($useDbName) {
$query = $inputQuery -f ($dbName -replace '"', '""')
}
$sqlCmd.CommandText = $query
$sqlCmd.Connection = $sqlConnection
for ($i = 0; $i -lt $queryParams.Length; $i++) {
$sqlCmd.Parameters.AddWithValue(("@p" + ($i+1)), [object]($queryParams[$i])) | Out-Null
}
$sqlAdapter.SelectCommand = $sqlCmd
$sqlAdapter.Fill($dataSet) | Out-Null
if(($dataSet.Tables.Count -eq 0) -or ($DataSet.Tables[0] -eq $null))
{
throw 'Can not query data from {0} database. Please check read permissions for this db.' -f $SqlConnection.Database
}
}
finally{
$sqlAdapter.Dispose()
$sqlCmd.Dispose()
}
return $dataSet.Tables
}
function SqlQueryTables($sqlConnection, $query) {
return SqlQueryTablesCommon $sqlConnection $query $false $null $args
}
function SqlConnQueryTables($sqlConnection, $query, $dbName) {
return SqlQueryTablesCommon $sqlConnection $query $true $dbName $args
}
function SqlQueryRows($sqlConnection, $query){
return (SqlQueryTablesCommon $sqlConnection $query $false $null $args | Select -First 1).Rows
}
function SqlConnQueryRows($sqlConnection, $query, $dbName){
return (SqlQueryTablesCommon $sqlConnection $query $true $dbName $args | Select -First 1).Rows
}
function SqlQueryScalar($SqlConnection, $query) {
$sqlAdapter = New-Object 'System.Data.SqlClient.SqlDataAdapter' ($query, $SqlConnection)
$dataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($dataSet) | Out-Null
if(($dataSet.Tables.Count -eq 0) -or ($DataSet.Tables[0] -eq $null))
{
throw 'Can not query data from {0} database. Please check read permissions for this db.' -f $SqlConnection.Database
}
return ($dataSet.Tables[0]|Select -first 1)[0]
}
#''' Returns -1: If DB is not in AlwaysOn
#''' Returns 0: If DB is in AlwaysOn and replica allow connections is NO
#''' Returns 1: If DB is in AlwaysOn and replica allow connections is YES
function AlwaysOnReplicaAllowConnections([System.Data.SqlClient.SqlConnection]$SqlConnection, $DatabaseID)
{
$query = " SELECT columns.id, CASE WHEN OBJECT_ID('sys.availability_replicas') IS NOT NULL THEN 1 ELSE 0 END AS HasAlwaysOn " +
" FROM master.sys.syscolumns columns where name = 'replica_id' and id = OBJECT_ID('sys.databases')"
$dr = SqlConnQueryTables $SqlConnection $query | Select -First 1
if($dr -eq $null -or $dr.HasAlwaysOn -ne 1) {
return -1
}
$query = "SELECT d.name, d.database_id, drs.is_primary_replica AS db_is_primary_replica
, CASE WHEN d.replica_id IS NULL THEN 0 ELSE 1 END AS is_replica
, CASE WHEN drs.is_primary_replica = 1 THEN ar.primary_role_allow_connections ELSE ar.secondary_role_allow_connections END AS role_allow_connections
, CASE WHEN drs.is_suspended = 0 THEN -1 ELSE suspend_reason END AS db_suspended_state
FROM sys.databases as d
JOIN sys.dm_hadr_database_replica_states drs ON drs.database_id = d.database_id
JOIN sys.availability_replicas ar on d.replica_id = ar.replica_id
WHERE drs.is_local = 1 AND d.database_id = @p1"
$rdr = SqlQueryTables $SqlConnection $query $DatabaseID | Select -First 1
if($rdr -ne $null -and $rdr.is_replica -eq 1) {
if($rdr.role_allow_connections -le 1) {
return 0
}
else {
if($rdr.db_suspended_state -gt 0 -and (!$rdr.db_is_primary_replica -or ($rdr.db_is_primary_replica -and $rdr.db_suspended_state -ne 5))){
return 0
}
return 1
}
}
return -1
}
#Common.ps1
#-------------------------------------------------------------------------------
#The function returns service or "Unknown" state
#Input:
# server - compute name
# service - system service name
# InstanceName - sql server instance name
#Output:
# service state or "Unknown" state
function GetServiceState($server, $service, $InstanceName)
{
try {
if ($service -eq "MSSQL") {
$service = "MSSQL`${0}" -f $InstanceName
}
$namespace = "root/cimv2"
$obje = Get-WmiObject -Property 'Name,State' -Namespace $namespace -ComputerName $server -Class "win32_service" -Filter "Name = '$service'" -ErrorAction SilentlyContinue
if ($obje -ne $null) {
return $obje.State
}
}
catch {
}
return "Unknown"
}
function GetSQLServiceName($InstanceName)
{
if ($InstanceName -eq "MSSQLSERVER")
{
return "MSSQLSERVER"
}
return 'MSSQL$' + $InstanceName
}
function IsNullOrZero($count)
{
return ($count -eq 0) -or ($count -eq $null)
}
function LogEventDebug($message) {
if($DEBUG_MODE -eq 1) {
$api.LogScriptEvent($DEBUG_MODULE, $SCRIPT_EVENT_ID, $INFORMATION_EVENT_TYPE, $message)
}
}
function ConvertToInt($v) {
if ($v -eq $null) {
return $null;
}
if ([int].IsInstanceOfType($v)) {
return $v;
}
$res = $null;
if([int]::TryParse($v.ToString(),[ref] $res)) {
return $res;
}
return $null;
}
function EscapeWmiString($str) {
return $str -replace "\\","\\" -replace "'","\'"
}
function CreatePathRecursive($path) {
if (Test-Path $path) {
return;
}
$parts = $path.Split('\');
$curPath = $parts[0];
for ($i=1;$i -lt $parts.Length;$i++) {
$curPath = $curPath + '\'+$parts[$i];
if (!(Test-Path $curPath)) {
New-Item -Path $curPath -ErrorAction SilentlyContinue|Out-Null
}
}
}
function PutValueToCache($path,$key, $value) {
if ($cacheExpirationTime -eq $null -or $cacheExpirationTime -eq 0) {
return;
}
$registryKey = $api.GetScriptStateKeyPath($ManagementGroupID);
$keyPath = "HKLM:\" + $registryKey + "\" + $path;
CreatePathRecursive $keyPath
try {
$creationKey = $key+"_CreationTime";
$ip = Get-ItemProperty -Path $keyPath -Name $creationKey -ErrorAction SilentlyContinue;
if ($ip -ne $null) {
Remove-ItemProperty -Path $keyPath -Name $creationKey
}
$ip = Get-ItemProperty -Path $keyPath -Name $key -ErrorAction SilentlyContinue;
# recreate key to avoid type problem
if ($ip -ne $null) {
Remove-ItemProperty -Path $keyPath -Name $key
}
# null - delete old entry
if ($value -ne $null) {
New-ItemProperty -Path $keyPath -Name $key -Value $value|Out-Null
$creationDate = [DateTime]::UtcNow.ToString('yyyy-MM-ddTHH:mm:ssZ',[System.Globalization.CultureInfo]::InvariantCulture)
New-ItemProperty -Path $keyPath -Name $creationKey -Value $creationDate|Out-Null
}
} catch {
LogEventDebug "Someone is refreshing data at $keyPath $key or no access"
}
LogEventDebug "Set at $keyPath $key value $value"
return $ip.$key;
}
# Returns all non-expired properties from specified path in cache as hashtable
function GetValuesFromCache($statePath, $cacheExpirationTime) {
function GetActualValue($name, $props) {
$creationKey = $name + "_CreationTime"
if (($props -eq $null) -or ($props[$creationKey] -eq $null)) {
return $null;
}
[ref]$creationDate = [DateTime]::MinValue;
[System.Globalization.CultureInfo]$ci = [System.Globalization.CultureInfo]::InvariantCulture;
$v = [System.DateTime]::TryParseExact($props[$creationKey].Value,'yyyy-MM-ddTHH:mm:ssK',$ci,[System.Globalization.DateTimeStyles]::None,$creationDate);
if (!$v) {
return $null;
}
$diff = [DateTime]::UtcNow - $creationDate.Value;
if ($diff.TotalSeconds -gt $cacheExpirationTime) {
return $null;
}
return $props[$name].Value;
}
$result = @{}
$registryKey = $api.GetScriptStateKeyPath($ManagementGroupID);
$path = "HKLM:\" + $registryKey + "\" + $statePath;
if (!(Test-Path $path) -or $cacheExpirationTime -eq $null -or $cacheExpirationTime -eq 0) {
return $result;
}
$ip = Get-ItemProperty -Path $path
$properties = $ip.psobject.Properties;
$msg = "Got from $path : ";
if($properties -ne $null) {
foreach ($property in $properties) {
$pn = $property.Name;
$pv = GetActualValue $pn $properties;
if ($pv -ne $null) {
$result[$pn] = $pv
$msg += "$pn :$pv ;"
}
}
}
LogEventDebug $msg
return $result;
}
function TryGetValueFromCache($statePath, $key, $cacheExpirationTime) {
$registryKey = $api.GetScriptStateKeyPath($ManagementGroupID);
$path = "HKLM:\" + $registryKey + "\" + $statePath;
if (!(Test-Path $path) -or $cacheExpirationTime -eq $null -or $cacheExpirationTime -eq 0) {
return $null;
}
$creationKey = $key + "_CreationTime"
$regObj = Get-ItemProperty -Path $path -Name $creationKey -ErrorAction SilentlyContinue
if ($regObj -eq $null) {
return $null;
}
$creationDateStr = $regObj | Select -ExpandProperty $creationKey
[ref]$creationDate = [DateTime]::MinValue;
[System.Globalization.CultureInfo]$ci = [System.Globalization.CultureInfo]::InvariantCulture;
$v = [System.DateTime]::TryParseExact($creationDateStr,'yyyy-MM-ddTHH:mm:ssK',$ci,[System.Globalization.DateTimeStyles]::None,$creationDate);
if (!$v) {
return $null;
}
$diff = [DateTime]::UtcNow - $creationDate.Value;
if ($diff.TotalSeconds -gt $cacheExpirationTime) {
LogEventDebug "Cache entry at $path key $key got expired"
return $null;
}
$value = Get-ItemProperty -Path $path -Name $key -ErrorAction SilentlyContinue| Select -ExpandProperty $key
LogEventDebug "Got from $path key $key value $value"
return $value
}
function EscapeCacheValueName([string] $name) {
return $name -replace "_", "__"
}
Main</Script> </Contents>
<Unicode>true</Unicode>
</File>
</Files>
<OutputType>System.PropertyBagData</OutputType>
<DefaultEventPolicy/>
<EventPolicy/>
</ProbeAction>
</MemberModules>
<Composition>
<Node ID="PS">
<Node ID="Scheduler"/>
</Node>
</Composition>
</Composite>
</ModuleImplementation>
<OutputType>System!System.PropertyBagData</OutputType>
</DataSourceModuleType>