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Foglight for SQL Server (Cartridge) 5.9.7.10 - User Guide

Introduction to this Guide Using Foglight for SQL Server
Viewing the Databases Dashboard Overview Dashboard Advisories Dashboard Monitoring Data Replication Monitoring SQL Performance Reviewing Memory Usage Reviewing the Instance Activity Reviewing Database Usage Reviewing the Services Using the HADR Drilldown Using the Logs Drilldown Reviewing Configuration Settings Viewing User-defined Performance Counters and Collections
Monitoring Business Intelligence Services Administering Foglight for SQL Server
Configuration Settings Managing Foglight for SQL Server Agent Settings Reviewing Foglight for SQL Server Alarms Generating Reports Monitoring SQL Server instances on VMware servers
Glossary
A
Access methods Adhoc SQL Plans Alarm Alert Allow updates Anonymous subscription Authentication AutoClose AutoGrow Automatic Discovery AutoShrink B Batch BCP (Bulk Copy Program) Blocking Books Online Bound trees Buffer Buffer cache Buffer pool Bulk copy Bulkinsert Bulk load C Cache CAL Calibration Cardinality Cartridge Chart Checkpoint process Client network utility CLR Compile Connect Connection Connectivity software CPU Usage Cursors D Data access components Data file Data storage engine Database Database object DataFlow DBCC DBID DBO Deadlock Disk queue length Disk transfer time Disk utilization DiskPerf Distributing instance Distributor DMO Drilldown DTC DTS E Error log Event alert Execution contexts Extended stored procedures Extent External procedures F File Filegroup File cache Foglight Agent Manager Foglight Management Server Foreign key Forwarded records Free buffers Free list Free pages Free potential Free space Freespace scans Full text search G GAM Ghosted records Growth increment GUID H Hash buckets Hashing Heap Hit rate Hit ratio Host name Host process I I/O Index Indid Integrated security Intent Locks J Job K Kernel memory Kernel mode Kill L Latch Lazy writer Licensing Lightweight pooling Lock Lock area Lock escalation Lock mode Log Log cache Log writer Logical I/O LRU LSN M Master MaxSize MDAC Metric Misc.normalized trees Model Monitor page file N Named pipes Net library NIC Null O OBID Object plans OLAP OLAP service OLTP Optimizer Optimizer cache osql P Page life expectancy Paging Panel Parse Parser Per seat licensing Per server licensing Performance alert Physical I/O Physical read Physical write PID Pinned Plan Plan cache Potential growth Prepared SQL plans Primary key Privileged mode Procedure cache Procedure plans Process Profiler Publication database Publisher Publisher databases Publishing server Pull subscription Pulse Push subscription Q Query plan R RAID Random I/O Read ahead Recompile Referential integrity Relational data engine Replication procedure plans Role Rollback S sa Schema locks Sequential I/O Session Severity SGAM Shared locks Show advanced options SMP Sort, Hash, Index Area SPID Spike Spinner SQL Agent Mail SQL Mail SQL Plans SQL Server Agent SQL Server authentication SQL Server books online Standard deviation Stolen pages Stored procedure Support service SYSADMIN role T TDS TempDB Temporary tables and table variables Threshold Torn page detection Transaction Trigger Trigger plans Truncate Trusted U UMS Unused space User connection area User mode V Virtual log file VLF W Waitfor Windows authentication mode Working set
Reference
SQL Performance Investigator Metrics
Active Time All SQL Agents CPU Usage All SQL Agents Resident Memory Usage Availability Average Physical I/O Operations Average SQL Response Time Backup Recovery Wait Blocked Lock Requests Checkpoint Pages CLR Wait CPU Usage CPU Wait Cursor Synchronization Wait Database Replication Wait Deferred Task Worker Wait Degree of Parallelism Disk Utilization DTC CPU Usage DTC Resident Memory Usage Distributed Transaction Wait Executions Ended Executions Started External Procedures Wait Full Scans Full Text Search CPU Usage Full Text Search Resident Memory Usage Full Text Search Wait Free Buffer Wait Hosted Components Wait IO Bulk Load Wait IO Completion Wait IO Data Page Wait IO Wait Latch Buffer Wait Latch Wait Latch Savepoint Wait Lazy Writes Lock Wait Lock Bulk Update Wait Lock Exclusive Wait Lock Intent Wait Lock Requests Lock Schema Wait Lock Shared Wait Lock Update Wait Lock Wait Log Buffer Wait Log Flushes Log Other Wait Log Synchronization Wait Log Wait Log Write Wait Memory Wait Network IO Wait Network IPC Wait Network Mirror Wait Network Wait Non SQL Server CPU Usage Non SQL Resident Memory Usage OLAP CPU Usage OLAP Resident Memory Usage OLEDB Provider Full Text Wait Other CPU Usage Other Miscellaneous Wait Other Wait Overall CPU Page Life Expectancy Page Splits Parallel Coordination Wait Physical I/O Physical Memory Used Physical Page Reads Physical Page Writes Probe Scans Plan Cache Hit Rate Range Scans Rec Ended Duration Remote Provider Wait Run Queue Length Samples Service Broker Wait Session Logons Session Logoffs SQL Agent CPU Usage SQL Agent Resident Memory Usage SQL Executions SQL Mail CPU Usage SQL Mail Resident Memory Usage SQL Recompilations SQL Response Time SQL Server Background CPU Usage SQL Server Cache Memory SQL Server Connections Memory SQL Server Connections Summary SQL Server Foreground CPU Usage SQL Server Resident Memory Usage SQL Server Swap Memory Usage Synchronous Task Wait Table Lock Escalation Target Instance Memory Total CPU Usage Total Instance Memory Virtual Memory Used
Rules Collections and Metrics
SQL Server Agent's Default Collections Access Methods Agent Alert List Agent Job List Always On Availability Groups Backup Locations Blocking History Blocking List Buffer Cache List Buffer Manager CLR Assemblies Cluster Summary Configuration Database Index Density Vectors Database Index Details Database Index Fragmentation Info Database Index Histogram Database Index List Database Information Database Properties Database Sessions (Session List) Database Summary Database Tables List Databases Deadlock DTC Information Error Log Error Log List Error Log Scan File Groups File Data Flow Statistics File Groups Files Files Drive Total Files Instance Summary Full Text Catalog InMemory OLTP (XTP) Instance Wait Categories Instance Wait Events Job Messages Latches and Locks Lock Statistics Locks List Log Shipping Log Shipping Error Logical Disks Long Running Session Memory Manager Mirroring Mirroring Performance Counters Missing Indexes Plan Cache Distribution Plan Cache List Replication Agents Replication Agent Session Actions Replication Agent Session Merge Articles Replication Agent Sessions Replication Agent Sessions by Type Replication Available Replication Publications Replication Subscriptions Reporting Services Resource Pool Session Data Session Trace SQL PI Instance Statistics SQL Server Connections Summary SQL Server Global Variables SQL Server Host SQL Server Load SQL Server Services SQL Server Throughput SQL Server Version Info SSIS OS Statistics SSIS Summary Statistics Top SQLs Top SQL Batch Text Top SQL Long Text Top SQL Plan Top SQL Short Text Top SQL Summary Traced SQL PA Usability User-defined Performance Counters User-defined Queries Virtualization XTP Session Transactions Statistics

Database Index Histogram

This collection provides the distribution of the range key and values within a specific database index.

Type

SQL Server.

Collection Sampling Intervals

This collection is an on-demand collection, which has no pre-defined sampling intervals.

Collection Metrics
 
 
Display Name
Description

Avg Range Rows

Average number of rows that corresponds to the last high range and the current one inclusive (Range Rows / Distinct Range Rows for Distinct Range Rows > 0).

Distinct Range Rows

Number of distinct rows that correspond to the last high range and the current one inclusive.

Equal Rows

Number of rows that correspond to the current high range.

Range High Key

The upper bound value of a histogram step.

Range Rows

Number of rows that corresponds to the last high range and the current one inclusive.

Database Index List

This collection provides the distribution of the range key and values within a specific database index.

Type

SQL Server.

Collection Sampling Intervals

This collection is an on-demand collection, which has no pre-defined sampling intervals.

Collection Metrics
 
 
Display Name
Description

DB Name

The name of the specified database.

FG Name

The name of the File Group where the index resides.

Free MB

The free size left for the index to grow, in megabytes.

Index Id

Unique identifier of the index.

Index MB

The size of the index at the time of its last statistics update, measured in megabytes.

Index Name

The name of the index.

Num Keys

The number of keys held by the index.

Orig Fill Factor

Represents the size the index occupies as a percentage of the total index page (8 KB).

Owner Name

The owner of the index.

Qualified Name

The full qualified name of the database object.

Row Mod Ctr

The number of row modifications made since statistics were last updated for this index.

Rows

The number of rows in the table.

Table Name

The table with which the index is associated.

Type

The index type.

Used MB

The actual size occupied by the index, in megabytes.

Database Information

Purpose

This collection monitors the database's operations, statistics and other general data.

Type

System.

Collection Sampling Intervals
 
 
Frequency Mode
Collection Interval (In Seconds)

Real-time

900

Online

900

Offline

3600

Collection Metrics
 
 
 
Display Name
Description

% Log Used

The percentage of used space within the file space allocated to the transaction log of each currently used database.

Log space can be freed up by backing up the log, or truncating it, using the truncate option (backup log <dbname> with truncate_only).

All log records that exist after the oldest open transaction cannot be freed.

Average Active Transactions

Average number of active transactions during the specified time range.

Average Log Flush Wait Time

Average amount of time (in milliseconds) spent waiting for log flushes in each database.

A high log flush wait time can result from a slow or overworked disk subsystem.

If a database has a consistently high value of log flush wait time, with no changes, run the SQL command CHECKPOINT on that database to force another log flush and check the value again.

Average Transactions

Average transactions for each database.

Average Transactions Rate

The average rate per second of transactions executed for each database.

Backup Throughput MB

Data transition size (in MB) of backup or restore commands that are reading or writing to the database. While backups are essential, other users will probably experience performance degradation while these operations run.

Backup Throughput Rate

The rate (measured in megabytes per second) at which backup or restore commands are reading or writing to the database. While backups are essential, other users may experience performance degradation while these operations run.

Bulk Copy Throughput

Data transition size (in MB) of data being loaded into the database using BCP (Bulk Copy Program) or BULK INSERT.

While BCP and BULK INSERT are the fastest way of getting data into SQL Server, other users will in most probability experience performance degradation while these operations run.

Bulk Copy Throughput Rate

The rate (measured in megabytes per second) at which data is being loaded into the database using BCP (Bulk Copy Program) or BULK INSERT.

Despite the top speed at which BCP and BULK INSERT can import data into SQL Server, system I/O performance may degrade while BCP operations are underway.

Database ID

The database ID.

Database Name

The name of the database.

DBCC Scans

The size (in MB) of data transition resulting from data logical read scans carried out by Database Console Commands (DBCC).

Log Cache

The total number of reads that were satisfied from the log cache, thereby avoiding physical log I/O operations.

Log Cache Hit Rate

The rate per second of log cache reads, namely: reads that were satisfied from the log cache, thereby avoiding physical log I/O operations.

Log Cache Hit Ratio

The percentage of reads that were satisfied from the log, thereby avoiding physical log I/O operations.

Log File Size

The amount of disk space that the log files are using.

Log Flush Wait Time

The amount of time spent waiting for log flushes in each database.

The log flush operation, which is necessary to guarantee that transactions can be recovered in the event of a system failure, is most commonly caused when a user is issuing a commit transaction.

A high log flush wait time can result from a slow or overworked disk subsystem. If a database has a consistently high value of log flush wait time, run the SQL command CHECKPOINT on that database to force another log flush, and then recheck the value.

Log Flushes

The total number of log pages that were being written to disk by the log writer process during the specified time range.

Log Flushes Rate Total

Number of times per second that the log caches of all of the instance’s databases are being flushed to disk.

Log Growth Count

The number of times the log has been expanded for each database.

Log Growth Count Rate

The number of times per second the log has been expanded for each database.

Log Reads

Log cache lookups.

Log Shrink Count

The number of times the log has been reduced for each database.

Log Truncation Count

The total number of log truncations performed for each database during the specified time range.

Log truncations can be carried out using either of the following methods:

•
Manual truncations (backup log <dbname> with truncate_only)
•
Automatic truncations — in either of the following settings:
•
The database has the trunc.log on chkpt. option turned on
•
The recovery model is set to Simple

Total Data Size

The amount of disk space that the data files are using.

Database Properties

This collection displays a list of databases and their overall properties, such as single user, status and used collation.

Type

SQL Server.

Collection Sampling Intervals
 
 
Frequency Mode
Collection Interval (In Seconds)

Real-time

3600

Online

3600

Offline

86400

Collection Metrics
 
 
Display Name
Description

Ansi Null Default

Database follows SQL-92 rules for allowing null values.

Ansi Nulls

All comparisons to a null evaluate to unknown.

Ansi Padding

Strings are padded to the same length before comparison or insert.

Ansi Warnings

Error or warning messages are issued when standard error conditions occur.

Arithmetic Abort

Queries are ended when an overflow or divide-by-zero error occurs during query execution.

Auto Close

Database shuts down cleanly and frees resources after the last user exits.

Auto Create Statistics

Existing statistics are automatically updated when the statistics become out-of-date because the data in the tables has changed.

Auto Shrink

Database files are candidates for automatic periodic shrinking.

Auto Update Statistics

AUTO_UPDATE_STATISTICS database option is enabled.

Bulk Copy

Database allows non-logged operations.

Close Cursors On Commit

Cursors that are open when a transaction is committed are closed.

Collation

Default collation name for the database.

DB Name

The database’s name provides a unique identification of the database within a SQL Server instance.

DBID

The database’s ID provides a unique identification of the database within a SQL Server instance.

Full Text

Database is full-text enabled.

Local Cursors Default

Cursor declarations default to LOCAL.

Merge Published

The tables of a database can be published for merge replication, if replication is installed.

Null Concat

Null concatenation operand yields NULL.

Numeric Round Abort

Errors are generated when loss of precision occurs in expressions.

Quoted Identifiers

Double quotation marks can be used on identifiers.

Recovery

Recovery model for the database.

Recursive Triggers

Recursive firing of triggers is enabled.

Status

Database status.

Subscribed

Database is subscribed to a publication.

Page Verify

The SQL Server Database Engine detects incomplete I/O operations, resulting from power failures or other system outages. This metric indicates the method used by the database for detecting incomplete I/O operations, and has the following options:

•
None
•
Checksum — A sum derived from the bits of a segment of computer data, which is calculated before and after transmission or storage.
•
Torn page detection — detection of an incomplete I/O operation

Trunc Log

Database truncates its logon checkpoints.

Updateability

Indicates whether data can be modified.

User Access

Indicates which users can access the database.

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