Sybase 12.5.1 Скачать руководство пользователя страница 188 | Manualshive

Страница: 188 / 210

Sybase 12.5.1 Скачать руководство пользователя страница 188

Cache performance summary

174

Historical Server

Cache performance summary

This view represents the overall effectiveness of Adaptive Server caches
during the most recent sample interval. It shows the percentage of data page
reads that are satisfied from the Adaptive Server data caches, as well as the
percentage of requests for procedure executions that are satisfied from the
Adaptive Server procedure cache.

hs_create_view cache_perf_sum,

"Page Hit Percent", "Value for Sample",

"Procedure Hit Percent", "Value for Sample"

Device I/O performance summary

Engine activity

Lock performance summary

Network activity for recording session

Network activity for sample interval

Network performance summary

Procedure cache statistics for recording session

Procedure cache statistics for sample interval

Procedure page I/O

Process activity

Process database object page I/O

Process detail for locks

Process detail page I/O

Process page I/O

Process state summary

Process stored procedure page I/O

Server performance summary

Stored procedure activity

Transaction activity

Topic

Page

«
...
186
187
188
189
190
...
»

Содержание 12.5.1

Страница 1: ...User s Guide Historical Server 12 5 1...

Страница 2: ...nywhere Information Everywhere InformationConnect InternetBuilder iScript Jaguar CTS jConnect for JDBC Mail Anywhere Studio MainframeConnect Maintenance Express Manage Anywhere Studio M Business Chann...

Страница 3: ...r connections 11 Initial configuration on UNIX platforms 12 Assumptions on UNIX platforms 12 Configuration procedures on UNIX platforms 12 Initial configuration on Windows NT 15 Assumptions on Windows...

Страница 4: ...Server 46 Assumptions before connection 46 How to connect 47 Required permissions for Historical Server activities 47 Mutually exclusive sessions 49 Historical Server commands 50 hs_create_alarm 51 h...

Страница 5: ...sing the Process ID 122 Using the application name 123 Empty rows versus no rows in views 123 Table of valid key and result data item combinations 124 Examples of valid combinations 146 Examples of in...

Страница 6: ...O performance summary 179 Engine activity 179 Lock performance summary 179 Network activity for recording session 180 Network activity for sample interval 180 Network performance summary 181 Page I O...

Страница 7: ...esents some basic Historical Server concepts Chapter 2 Configuring Historical Server describes how to complete an initial Historical Server configuration or change a configuration for both UNIX and Wi...

Страница 8: ...cribes the new features in Adaptive Server version 12 5 1 the system changes added to support those features and the changes that may affect your existing applications ASE Replicator User s Guide desc...

Страница 9: ...plications that access Adaptive Server performance data Monitor Server User s Guide describes how to use Monitor Server to obtain performance statistics from SQL Server and Adaptive Server Performance...

Страница 10: ...r beginning users of the database management system This manual also contains descriptions of the pubs2 and pubs3 sample databases Using Adaptive Server Distributed Transaction Management Features exp...

Страница 11: ...d starting the Technical Library The Technical Library Product Manuals Web site is an HTML version of the Technical Library CD that you can access using a standard Web browser In addition to product m...

Страница 12: ...in this manual The following table describes the style conventions used in this manual Description Examples Command names command parameters and other keywords appear in the text in Helvetica typefac...

Страница 13: ...urchased a support contract has one or more designated people who are authorized to contact Sybase Technical Support If you cannot resolve a problem using the manuals or online help please have the de...

Страница 14: ...xiv Historical Server...

Страница 15: ...ed procedures Adaptive Server Monitor components Adaptive Server Monitor consists of four components that gather or display Adaptive Server performance data Adaptive Server Enterprise Monitor Server M...

Страница 16: ...nd the monitors in the Adaptive Server Enterprise plug in for Sybase Central are Monitor Client Library applications Adaptive Server Monitor architecture Figure 1 1 shows the relationships between Ada...

Страница 17: ...formation The Adaptive Server Enterprise plug in for Sybase Central includes a set of monitors showing different aspects of Adaptive Server resource usage at various levels of detail Each open monitor...

Страница 18: ...hs_create_alarm optional hs_initiate_recording When you create a recording session Historical Server assigns it a session ID You can list the session IDs of defined recording sessions using the hs_lis...

Страница 19: ...recording sessions Views start time and end time these attributes define the data from the input recording sessions that you want to include in the playback session Summarization level you can specif...

Страница 20: ...a item includes embedded spaces you must surround the name with quotation marks when you use it Some sample data items are Page I O Login Name and CPU Time Table A 1 on page 103 lists all available da...

Страница 21: ...ple interval For example Rate for Sample for Page I O is the average number of page I Os that occurred each second during the most recent sample interval The calculation is Rate for Session this stati...

Страница 22: ...ty over the session Only a few data items can use this statistic type The meaning of the returned value depends on the data item For example Average for Session for Procedure Elapsed Time is the avera...

Страница 23: ...ps so users can access recording sessions that they created during previous executions of Historical Server The control file restricts user access to private recording session files Recording session...

Страница 24: ...e directories For more information about the files created by Historical Server see Chapter 5 Data Files Accessing control file information Use the Historical Server hs_list command to gain access to...

Страница 25: ...rver home directory specified in the start up command The account must have search execute and write access to the locations of recording session data files as specified by users who create recording...

Страница 26: ...tructions in this section are based on the following assumptions Historical Server software was unloaded from the delivery media using the instructions provided with the delivery media An Adaptive Ser...

Страница 27: ...must appear in the script file The ones with default values may be omitted if the default values are acceptable A sample script file for starting Historical Server follows histserver Dserver1HistDir S...

Страница 28: ...storical Server was installed points to the appropriate directory service Use an editor to check and update libtcl cfg files Add Historical Server to the directory service using dsedit_dce if your sys...

Страница 29: ...file If you are relying on a directory service for making client server connections make sure that the libtcl cfg file on all Historical Server client machines points to the appropriate directory ser...

Страница 30: ...o the sql ini file in the Sybase installation directory on the Historical Server machine Configuration procedures on Windows NT To complete Historical Server configuration 1 Add connectivity informati...

Страница 31: ...or Server knows it by For example use the value you used in the S parameter in the Monitor Server start up command If you edit a sql ini file using a text editor instead of dsedit make sure a carriage...

Страница 32: ...Use ocscfg to check and update libtcl cfg files 3 Review start up parameters in the NT Registry This task ensures that the default start up parameter values that the installation process inserted into...

Страница 33: ...is an integer in sequential order dataType defines the type of data in the parameter value parameter is a start up option preceded by a dash and followed by the parameter value An example containing t...

Страница 34: ...and parameters The section applies to Historical Server running on both UNIX and NT platforms Function Starts Historical Server Syntax histserver histsrvr DhomeDir d delim IinterfacesFile llogFile Uu...

Страница 35: ...cal Server can share the same home directory See Configuring multiple instances of Historical Server on page 23 for more information Note If any UNIX shell specific characters such as the C shell s ti...

Страница 36: ...user has unrestricted access to the Historical Server data files Ppassword Password of user specified with the U parameter A user who logs in to Historical Server must supply this username and passwo...

Страница 37: ...fere with the timely acquisition of new samples If the timestamps in the recorded data files indicate that samples are not being collected at a reasonable approximation of the requested sample interva...

Страница 38: ...ver using the same home directory If this distinction is important to Historical Server administration use different home directories Contention on the control file if a large control file receives he...

Страница 39: ...pdating the NT Registry services list 3 Adding connectivity information for Historical Server 4 Configuring Historical Server client machines 5 Creating a bat file optional Adding start up parameters...

Страница 40: ...er 10 Make sure the entry for the new Historical Server name remains highlighted 11 Select Edit Add Key 12 In the Key Name box enter Parameters Leave the Class box blank 13 In the tree view highlight...

Страница 41: ...ve Subtree As command or the Print command Value name Datatype String Arg0 REG_SZ ShsName where hsName is the Historical Server name you used in step 5 Example SHS_SERVER1 Arg1 REG_SZ DdataDirectoryNa...

Страница 42: ...the SYBHIS_hsName key entry remains highlighted 10 Select Edit Add Key 11 In the Key Name box enter Security Leave the Class box blank 12 In the tree view highlight the following Security key entry S...

Страница 43: ...tor Monitor Server paired with each Adaptive Server Historical Server Use dsedit to add entries to a sql ini file To add these entries you must know the following information Monitor Server and Adapti...

Страница 44: ...ou are using sql ini files for making client server connections then update all of the sql ini files used by Historical Server clients The client sql ini files must contain entries for Historical Serv...

Страница 45: ...exe See Inferring start up parameters from the NT Registry on page 37 for precedence rules used by Historical Server to obtain start up parameters See Setting Historical Server start up parameters on...

Страница 46: ...Configuring multiple instances of Historical Server 32 Historical Server...

Страница 47: ...ime Execute a script file that contains the histserver command and all appropriate parameters If you followed the configuration instructions in Chapter 2 Configuring Historical Server you would start...

Страница 48: ...Server displays the following message to indicate that start up was successful Initialization is over Ready to accept connections Historical Server writes messages to its log file during start up You...

Страница 49: ...s To determine current activity in Historical Server connect to Historical Server with the isql utility and issue the hs_status activity command Deferred versus immediate shutdown To close Historical...

Страница 50: ...is the password that was used with the P parameter to the Historical Server start up command If U was not used in the start up command any user can stop Historical Server and this parameter is option...

Страница 51: ...File Manager The command line shell captures start up error messages if any occur whereas the File Manager does not The start up command typed directly from a command line shell The name of the Histor...

Страница 52: ...T Registry entries Verifying that Historical Server is running On Windows NT check the status of Historical Server in the Windows NT Control Panel Services window Stopping Historical Server on Windows...

Страница 53: ...s activity command Deferred versus immediate shutdown on Windows NT To close Historical Server connect to it using the isql utility and issue one of the following commands hs_shutdown defers shutdown...

Страница 54: ...box is presented Historical Server shuts down in an uncontrolled way risking data loss and file corruption To stop Historical Server using isql 1 Connect to Historical Server using isql isql Uhs_supe...

Страница 55: ...y its controlled shutdown should take less than 20 seconds If 20 seconds or more are used for the controlled shutdown however the system may intervene and terminate Historical Server in an uncontrolle...

Страница 56: ...Starting and stopping Historical Server on Windows NT 42 Historical Server...

Страница 57: ...sessions Use these commands to create a recording session hs_create_recording_session defines the characteristics of a recording session hs_create_view defines a view which is a collection of data to...

Страница 58: ...atistic types are all case insensitive File names view names and other user supplied names are case sensitive Creating a playback session Use these commands to create a playback session hs_create_play...

Страница 59: ...successful execution One indicates an error condition If a status of one 1 is returned an error message and its appropriate error code severity level and state are returned to the client Historical S...

Страница 60: ...endix D Examples of Recording Session Views provides examples of views that you might use as a start for your input files These views also appear in the views file that was installed in the sample his...

Страница 61: ...es for the utility For example in SQL Advantage choose the Connect menu item In isql start isql using the Historical Server name as the value of the S parameter Required permissions for Historical Ser...

Страница 62: ...he Monitor Server you want to connect to which indirectly implies the Adaptive Server you want performance information about Create recording sessions Valid login and password in the Adaptive Server b...

Страница 63: ...recording For example a user might connect to Historical Server at 3 p m define a recording session that starts at 10 p m and then disconnect from Historical Server At 10 p m it is irrelevant whether...

Страница 64: ...ommand you must successfully execute a hs_terminate_playback command to end the playback session This command cancels the definition and ends playback Historical Server commands The following pages de...

Страница 65: ...ew definition Surround the statistic type with quotation marks alarm_action action to take when an alarm condition occurs Values are log logs messages when the alarm condition occurs You specify the l...

Страница 66: ...xecutes in the background The commands within the script or program are executed in the foreground and displayed if applicable For example if you want the clock to display in an alarm condition you sh...

Страница 67: ...a items in the view for the row of sample data that triggered the alarm When an alarm condition occurs and alarm_action is execute Historical Server runs the script or program specified in the alarm_a...

Страница 68: ...A filter limits the scope of collected data for a single data item in a view Filters are optional Syntax hs_create_filter view_name data_item_name data_item_stat filter_type value_spec Parameters vie...

Страница 69: ...lter_type is value_spec syntax is eq or neq value1 value2 See Using wildcards on page 56 for information about using a wildcard character when valuen is a character string See Specifying filters on ob...

Страница 70: ...other filter The result is that less that specified top n values are returned Using wildcards The wildcard character is the percent sign When filter_type is eq or neq you can use the wildcard in value...

Страница 71: ...posite filter value for an Object Name data item a Database Name data item also must be present in the view If owner_name is a subcomponent of any composite filter value for an Object Name data item a...

Страница 72: ...tart_time specifies the date and time of the beginning of the recorded data to be played back The default is to start playback from the beginning of the first session specified by session_id Use the v...

Страница 73: ...ight saving time MST U S mountain time zone standard time MDT U S mountain time zone daylight saving time PST U S Pacific time zone standard time PDT U S Pacific time zone daylight saving time MET Mid...

Страница 74: ...e recorded data to be played back The default is to end playback at the end of the last session specified Use the value NULL to accept the default The format of this parameter is the same as the start...

Страница 75: ...first and last samples when the recording session times do not align with the requested playback session times Choose this option to add or change certain data items when summarization is not required...

Страница 76: ...Choose this option to summarize data into any desired granularity This type of summary can mediate deviations in activity and is useful for observing trends over time The actual entire and user defin...

Страница 77: ...back to estimate values if necessary for certain data items Some data items cannot be included in a playback view unless you allow estimation in the playback session This parameter is ignored if summa...

Страница 78: ...Server home directory The operating system account that started Historical Server must have execute search and write permission on the specified directory protection_level when target is file this par...

Страница 79: ...sSessionId where s is a constant SessionId is assigned by Historical Server null implements the default value no_script When target is client this parameter is ignored delete_option when target is fil...

Страница 80: ...Examples 1 This example creates a playback session based on a single input session session 7 The session is played back in its entirety with no summarization or normalization and without creating a ne...

Страница 81: ...data from 9 a m to 5 p m every day from Monday through Friday you could not play back those five recording sessions to create a new summarized weekly session However if you eliminate the time gaps by...

Страница 82: ...ta items then the view is defined using all of the data items from the corresponding view in the input sessions However if a data item from that corresponding view is not valid in the playback view an...

Страница 83: ...ited Parameters monServerName name of the Monitor Server used to collect data from the Adaptive Server for which you want to collect historical data The user name and password you used to connect to H...

Страница 84: ...tain time zone standard time MDT U S mountain time zone daylight saving time PST U S Pacific time zone standard time PDT U S Pacific time zone daylight saving time MET Middle European time zone standa...

Страница 85: ...es that recording is to continue when non fatal errors are detected For example when the Monitor Server fills all of its configured buffers while summarizing monitoring information one or more non fat...

Страница 86: ...s of the value of error_option You must issue this command before you define any views alarms or filters for the recording session After you have issued this command and have defined at least one view...

Страница 87: ...the view You must define at least one view for each recording session If you intend to use the Historical Server playback features to examine data in a recording session you might want to think about...

Страница 88: ...ve recording session files are deleted Files associated with active recording sessions are not deleted even if their session IDs fall within the range specified in the hs_delete command An inactive re...

Страница 89: ...ding Usage The hs_create_recording_session command and one or more hs_create_view commands must precede the hs_initiate_recording command One or more hs_create_alarm and hs_create_filter commands may...

Страница 90: ...ssions latest selects only the recording session if any most recently initiated on the current client connection If restriction is omitted all active and inactive recording sessions that you have perm...

Страница 91: ...he session active inactive active remotely or inactive status of the session cannot be determined unambiguously Sessions that are currently active in another instance of Historical Server that is usin...

Страница 92: ...D View name Data item Data item statistic type Number of alarms defined for the data item Number of filters defined for the data item One of the following keywords recorded indicates that the data is...

Страница 93: ...e following columns Session ID View name Data item Statistic type One of the following keywords recorded indicates that the data for this data item if played back would be the data from the original r...

Страница 94: ...al entire or a user specified interval and if any view in the playback session contains a data item with a statistic type of Value for Session or Rate for Session then the only permissible value for s...

Страница 95: ...See Views with Process ID on page 81 for more explanation about when a Process ID is returned Views that contain keys other than those listed in the previous item return rows even when there is no ac...

Страница 96: ...gaps are allowed in the specified input sessions so there will not be gaps in the playback session Gaps in available data might occur when The input sessions specified for the playback session are no...

Страница 97: ...be represented by 32 empty samples if summarization_level is entire gaps are ignored hs_shutdown Description Shuts down Historical Server Syntax hs_shutdown wait_option Parameters wait_option specifi...

Страница 98: ...ignals at any time including while waiting for the hs_shutdown command to complete is equivalent to issuing the hs_shutdown no_wait command Warning Sybase strongly recommends that you do not use the k...

Страница 99: ...ivity displays the following information about the current level of activity on Historical Server The activity information is relevant when stopping Historical Server because Historical Server does no...

Страница 100: ...st issue hs_terminate_playback before you can start defining any additional playback sessions or recording sessions Unlike a recording session definition playback session definitions are not stored in...

Страница 101: ...terminate_recording 5 delete Usage If you initiate a recording you are the session owner To terminate a recording session you must be the session owner or the Historical Server superuser The hs_termin...

Страница 102: ...hs_terminate_recording 88 Historical Server...

Страница 103: ...s for the same Historical Server use the same control file For information about multiple Historical Server instances and control files see Configuring multiple instances of Historical Server on page...

Страница 104: ...ed columns from the file Permissions on files All of the historical monitoring data files for a given recording session are stored in the same directory This directory is by default the directory spec...

Страница 105: ...the other files created by Historical Server the control file is not a standard format Windows NT text file Lines of text in the control file are terminated only with new line characters rather than t...

Страница 106: ...rarchical sequential order in the control file where the hierarchy of record types in top down order is Session control View control Data item control Alarm control and filter control For example a se...

Страница 107: ...es might differ slightly from the start_time and end_time parameter values specified in the command For example start_time might be scheduled as 1 p m but because of a busy system the session might ac...

Страница 108: ...een the data item control records as appropriate Data item control record The data item control record contains Record identifier the word dataitem Data item name Statistic type In sessions created fr...

Страница 109: ...by the hs_create_filter command One filter control record exists for each filter that was applied to the current data item Data file A data file contains the data for a single view recorded during a...

Страница 110: ...s This format is acceptable to the Bulk Copy utility provided that the columns into which the data items are being copied will accept nulls Error message file Any error messages that are received whil...

Страница 111: ...viewname where s is a constant SessionId is the unique identifier for the session viewnumber is a number greater than or equal to one that reflects the order in which views were defined for the sessio...

Страница 112: ...y example see Bulk copy example on page 99 Script use example Use the following isql command to connect to the Adaptive Server in which you want to store the recorded monitoring data isql Uusername Pp...

Страница 113: ...ables by having the Historical Server create a script file for you Use the script_type parameter of the hs_create_recording_session command After you create the tables on Adaptive Server you can use t...

Страница 114: ...Server You can use the following steps to record the data create a table to accept the data and then use the bcp utility to import the data into the table In this example the view data file that is c...

Страница 115: ...flist d view_data_file output_file_name where list is a comma separated list of the field numbers that you want to cut and save from the original view data file The first field has field number 1 view...

Страница 116: ...d cut f1 2 5 d d1_1_device_io d1_1_device io new where field 1 is the date and time of the sample 2 is the second field which is the device name and 5 is the fifth field which is the device I O value...

Страница 117: ...ithout consideration for specific logins That is an execution class is configured for the application with null scope Execution class name followed by asterisk in addition to the execution class confi...

Страница 118: ...11 0 and later The ID of a data cache in Adaptive Server version 11 0 or later Particular database tables and indexes may be bound to a specific data cache or all objects in a database may be bound to...

Страница 119: ...ve otherwise prefetching is not providing much benefit This may suggest that a buffer pool should be eliminated or it may imply that a clustered index on some table is fragmented and that the index sh...

Страница 120: ...nning a given application were in the Running state over the time all processes were in the Running state Type Result CPU Time Version 11 0 and later If used in a view with no keys this data item is t...

Страница 121: ...her Adaptive Server version 11 5 and later is saving the SQL text of the currently executing query batches and if so how much Value of 0 saving SQL text disabled Value of 1 or more maximum number of b...

Страница 122: ...SQL statement is in the query batch if both Current Stmt Procedure Database ID is equal to 0 and Current Stmt Procedure ID is equal 0 Otherwise the currently executing SQL statement is in the stored...

Страница 123: ...ting SQL statement for a particular process If the currently executing SQL statement is not contained in a stored procedure this name is NoOwner Type Result Current Stmt Procedure Text Version 11 5 an...

Страница 124: ...Number of deadlocks Type Result Demand Lock Version 11 0 and later A character string Y or N that indicates whether or not a lock that has been upgraded to demand lock status Type Result Device Hit P...

Страница 125: ...rnel Structures Memory Size Version 11 0 and later Amount of memory in bytes allocated to the kernel structures Type Result Large I O Denied Version 11 0 and later The number of times the buffer manag...

Страница 126: ...condition Type Key Lock Results Summarized Version 11 0 and later Lock results summarized at a granted or not granted level 1 the lock result summary granted is composed of the lock results granted no...

Страница 127: ...tely without having to wait for another lock to be released Type Result Locks Granted After Wait Version 11 5 and later Number of locks that were granted after waiting for another lock to be released...

Страница 128: ...er Total number of network bytes sent and received Type Result Net Max Packet Size Version 11 0 and later Configured maximum size for a network packet Type Result Net Packet Size Received Version 11 0...

Страница 129: ...in bytes allocated for the page cache Type Result Page Hit Percent Version 11 0 and later Percentage of times that a data page read could be satisfied from cache without requiring a physical page rea...

Страница 130: ...es a stored procedure or a line in a stored procedure was executed Type Result Procedure Header Size Version 11 0 and later Amount of memory in bytes allocated for the procedure header Type Result Pro...

Страница 131: ...ess state 0 None 1 alarm sleep Waiting on an alarm 2 background Adaptive Server process executing 3 bad status Undetermined error condition 4 infected Tagged by Adaptive Server as unprocessable 5 lock...

Страница 132: ...later Updates that require two steps to complete First records for deleting the existing entry and inserting the new entry are written to the log but only the deletes are actually performed on the dat...

Страница 133: ...de worker thread pool in Adaptive Server version 11 5 and later Type Result Thread Max Used Version 11 5 and later The maximum number of threads from the server wide worker thread pool that were concu...

Страница 134: ...efinitions 120 Historical Server Transactions Version 11 0 and later Total number of committed Transact SQL statement blocks delimited by a begin transaction and commit transaction statement Type Resu...

Страница 135: ...ical Server returns You can combine key data items within a view to narrow the scope of the returned data With the inclusion of each successive key envision adding the word per to a view definition Fo...

Страница 136: ...uaranteed to uniquely identify a process The Kernel Process ID data item however uniquely identifies a process View definition Results Page I O Since there are no keys in the view the result is page I...

Страница 137: ...o be included to ensure uniqueness of the key Otherwise the view could erroneously summarize two different processes Using the application name Historical Server accumulates performance data per appli...

Страница 138: ...equired keys listed for the result data item The view can include the optional keys listed for the result data item However not all of the optional keys listed for a data item are guaranteed to work t...

Страница 139: ...Efficiency Valid at server level No Required keys Cache ID Cache Hit Pct Valid at server level No Required keys Cache ID Cache Hits Valid at server level No Required keys Cache ID Cache ID KEY 4 Cache...

Страница 140: ...ys Cache ID Cache Reuse Dirty Valid at server level Yes Required keys None Optional keys Cache ID Cache Size Valid at server level No Required keys Cache ID Cache Spinlock Contention Valid at server l...

Страница 141: ...s ID or Application Name Optional keys Engine Number CPU Time3 Valid at server level Yes Required keys None Optional keys Process ID or Application Name Engine Number CPU Yields Valid at server level...

Страница 142: ...rent Stmt Batch Text2 Valid at server level No Required keys Process ID Current Stmt Batch Text Byte Offset2 Valid at server level No Required keys Process ID Current Stmt Batch Text Enabled2 Valid at...

Страница 143: ...red keys Process ID Current Stmt Locks Not Granted2 Valid at server level No Required keys Process ID Current Stmt Logical Reads Valid at server level No Required keys Process ID Current Stmt Number 2...

Страница 144: ...s ID Current Stmt Procedure Name2 Valid at server level No Required keys Process ID Current Stmt Procedure Owner Name2 Valid at server level No Required keys Process ID Current Stmt Procedure Text2 Va...

Страница 145: ...at server level Yes Required keys None Demand Lock Valid at server level No Required keys Process ID Database ID Object ID Lock Status Page Number Optional keys Lock Type Device Hit Percent Valid at...

Страница 146: ...uired keys None Optional keys Device Name Device Name KEY Device Reads Valid at server level Yes Required keys None Optional keys Device Name Device Writes Valid at server level Yes Required keys None...

Страница 147: ...y combination Procedure Database ID Procedure ID Index Physical Reads Valid at server level Yes Required keys None Optional keys Process ID Database ID Object ID Engine Number Key combination Procedur...

Страница 148: ...ested Valid at server level No Required keys Cache ID Lock Count Valid at server level Yes Required keys None Optional keys Process ID Lock Type Lock Result Lock Results Summarized Lock Hit Percent Va...

Страница 149: ...r Wait3 Valid at server level Yes Required keys None Optional keys Process ID or Application Name Key Combination Database ID Object ID Key Combination Procedure Database ID Procedure ID Locks Granted...

Страница 150: ...ct ID Key Combination Procedure Database ID Procedure ID Log Contention Percent Valid at server level Yes Required keys None Logical Page Reads Valid at server level Yes Required keys None Optional ke...

Страница 151: ...evel Yes Required keys None Net Bytes Sent Valid at server level Yes Required keys None Net Default Packet Size Valid at server level Yes Required keys None Net I O Bytes Valid at server level Yes Req...

Страница 152: ...nes Valid at server level Yes Required keys None Number of Processes2 Valid at server level Yes Required keys None Optional keys Application Name Object ID KEY Object Name1 Valid at server level No Re...

Страница 153: ...Required keys None Optional keys Process ID Engine Number Key combination Database ID Object ID Key combination Procedure Database ID Procedure ID Page I O Valid at server level Yes Required keys Non...

Страница 154: ...bination Database ID Object ID Key combination Procedure Database ID Procedure ID Physical Page Reads Valid at server level Yes Required keys None Optional keys Process ID Engine Number Key combinatio...

Страница 155: ...Line Number Procedure Database ID KEY Procedure Database Name1 Valid at server level No Required keys Procedure Database ID Procedure Elapsed Time Valid at server level No Required keys Procedure Dat...

Страница 156: ...eader Size Valid at server level Yes Required keys None Procedure Hit Percent Valid at server level Yes Required keys None Procedure ID KEY Procedure Line Number KEY Procedure Line Text Valid at serve...

Страница 157: ...keys None Procedure Statement Number KEY Process ID KEY 3 Process State KEY Process State Count Valid at server level No Required keys Process State Rows Deleted Valid at server level Yes Required ke...

Страница 158: ...red keys None Rows Updated Deferred Valid at server level Yes Required keys None Rows Updated Direct Valid at server level Yes Required keys None Rows Updated Expensive Valid at server level Yes Requi...

Страница 159: ...n Valid at server level Yes Required keys None Thread Exceeded Max2 Valid at server level Yes Required keys None Thread Exceeded Max Percent2 Valid at server level Yes Required keys None Thread Max Us...

Страница 160: ...infer names from IDs or status types They are valid in any view containing the required keys regardless of the other keys that might also be in the view For example Database Name is valid in any view...

Страница 161: ...ms but keys are required for Current Engine and Login Name Table of valid statistic types for data items There are six valid statistic types Value for Sample Value for Session Rate for Sample Rate for...

Страница 162: ...ficiency double double Cache Hit Pct double double Cache Hits long long double double Cache ID long Cache Misses long long double double Cache Name charp Cache Prefetch Efficiency double double Cache...

Страница 163: ...long Current Stmt Batch Text Enabled long Current Stmt Context ID long Current Stmt CPU Time double double Current Stmt Elapsed Time double double Current Stmt Line Number long Current Stmt Locks Gra...

Страница 164: ...double double Current Stmt Procedure Database ID long Current Stmt Procedure Database Name charp Current Stmt Procedure ID long Current Stmt Procedure Name charp Current Stmt Procedure Owner Name char...

Страница 165: ...uble Device Writes long long double double Elapsed Time long long Engine Number long Host Name charp Index Logical Reads long long double double Index Physical Reads long long double double Kernel Pro...

Страница 166: ...diately long long double double Locks Not Granted long long double double Log Contention Percent double double Logical Page Reads long long double double Login Name charp Most Active Device I O long l...

Страница 167: ...of Processes long Object ID long Object Name charp Object Type ENUMS Owner Name charp Page Cache Size long Page Hit Percent double double Page I O long long double double Page Number long Page Writes...

Страница 168: ...e Line Number long Procedure Line Text charp Procedure Logical Reads long long double double Procedure Name charp Procedure Owner Name charp Procedure Physical Reads long long double double Procedure...

Страница 169: ...eferred long long double double Rows Updated Direct long long double double Rows Updated Expensive long long double double Rows Updated In Place long long double double Rows Updated Not In Place long...

Страница 170: ...ceeded Max Percent double double Thread Max Used long Time Waited on Lock long Timestamp charp Timestamp Datim datim Transactions long long double double Statistic type data item Value for sample Valu...

Страница 171: ...lay back with the same summarization level You define the summarization level of playback using the summarization_level parameter to the hs_create_playback_session command The summarization levels are...

Страница 172: ...ording session has 10 minute samples with one starting at 2 55 p m the first sample in the playback is the one that starts at 3 05 p m If playback start_time is later than the input recording session...

Страница 173: ...put recording session started at 1 p m but the playback start_time is 3 p m the data item Device I O Total for Session would be a prorated value for I O since 3 p m Entire playback This option plays b...

Страница 174: ...S D H M S where S is seconds M is minutes H is hours D is days All components are numeric and can be one or two digits Some examples are 30 specifies sample intervals of 30 seconds 10 0 specifies sam...

Страница 175: ...C 1 summarizes the playback features offered by each of the summarization_interval values Table C 1 Summarization interval features Feature Raw Actual Entire Defined interval All recorded data items...

Страница 176: ...s by collecting data from 9 a m to 9 a m every day from Monday through Friday you could use the playback feature to create a new summarized weekly session Another way to eliminate the time gaps is to...

Страница 177: ...d statistic type for a key is Value for Sample The result data items in the input view are optional in the playback view The statistic types for all data items in the playback view must be the same as...

Страница 178: ...iew The statistic type for the data item must be Value for Sample in the input view and The playback session must be defined to allow estimations In the hs_create_playback_session command the allow_es...

Страница 179: ...mated Cache Hit Pct Valid Calculated from Cache Hits Cache Misses Cache Hits Valid Full Cache ID KEY 1 Cache Misses Valid Full Cache Name1 Valid Value for Sample Cache Prefetch Efficiency Valid Estima...

Страница 180: ...Physical Reads No Current Stmt Procedure Database ID No Current Stmt Procedure Database Name No Current Stmt Procedure ID No Current Stmt Procedure Name No Current Stmt Procedure Owner Name No Curren...

Страница 181: ...ple Lock Results Summarized KEY Valid Value for Sample Lock Status KEY Valid Value for Sample Lock Status Count No Lock Type KEY Valid Value for Sample Locks Being Blocked Count No Locks Granted Immed...

Страница 182: ...Sample Page Cache Size Valid Value for Sample Page Hit Percent Valid Calculated from Logical Reads Physical Reads Page I O Valid Full Page Number KEY Valid Value for Sample Page Writes Valid Full Phys...

Страница 183: ...rocess State KEY Valid Value for Sample Process State Count No Rows Deleted Valid Full Rows Deleted Deferred Valid Full Rows Deleted Direct Valid Full Rows Inserted Valid Full Rows Inserted Clustered...

Страница 184: ...mestamp and Timestamp Datim values are the same as those in the original data file which is the time as reported by Adaptive Server when the recording was originally made When summarization_level is a...

Страница 185: ...n the session s summarization_level parameter is actual entire or user defined intervals These views return rows for all server processes included in any of the input views However since the Process I...

Страница 186: ...ecution Count does not exist in the input view and Procedure Elapsed Time exists in the input view with the statistic type Avg for Sample and The playback session allows estimations That is in the hs_...

Страница 187: ...nt because the data is sorted according to the key fields The first key field that appears in a view s definition acts as the primary sort key the second key field is the secondary sort key and so on...

Страница 188: ...it Percent Value for Sample Device I O performance summary 179 Engine activity 179 Lock performance summary 179 Network activity for recording session 180 Network activity for sample interval 180 Netw...

Страница 189: ...dy holds the lock are shown If instead the process already holds the lock the count of other processes waiting to acquire that lock is shown hs_create_view object_lock_status Database ID Value for Sam...

Страница 190: ...ch named cache configured in the Adaptive Server and also for the default data cache this view collects the cache s name and the percentage of page reads for objects bound to the cache that were satis...

Страница 191: ...ical Page Reads Value for Session Physical Page Reads Rate for Session Page Writes Value for Session Page Writes Rate for Session Data cache statistics for sample interval This view represents the ove...

Страница 192: ...for Session Device I O Value for Session Device Reads Rate for Session Device Writes Rate for Session Device I O Rate for Session Device I O for sample interval This view represents the I O activity t...

Страница 193: ...ws the level of activity for each active Adaptive Server engine during the most recent sample interval For each engine the percentage of the sample interval when that engine used the CPU is presented...

Страница 194: ...alue for Session Net Packets Sent Rate for Session Net Packets Received Rate for Session Net Bytes Sent Value for Session Net Bytes Received Value for Session Net Bytes Sent Rate for Session Net Bytes...

Страница 195: ...O This view enables you to determine which tables experienced the highest number of page reads over the duration of the recording session It also allows you to track activity against tables at differe...

Страница 196: ...tored procedures since the start of the session hs_create_view session_procedure_cache_stats Procedure Hit Percent Value for Session Procedure Logical Reads Value for Session Procedure Logical Reads R...

Страница 197: ...he Adaptive Server data caches and the number of logical page reads physical page reads and page writes generated while executing the stored procedures during the most recent sample interval hs_create...

Страница 198: ...w also shows the object name object ID and the object s database name and ID plus the page I Os associated the object The view also shows the total page I Os the percentage of page I O requests that c...

Страница 199: ...rocesses waiting to acquire that lock is shown hs_create_view process_detail_locks Login Name Value for Sample Process ID Value for Sample Kernel Process ID Value for Sample Database Name Value for Sa...

Страница 200: ...he most recent sample interval hs_create_view process_lock Login Name Value for Sample Process ID Value for Sample Kernel Process ID Value for Sample Lock Count Value for Sample Process page I O This...

Страница 201: ...and Kernel Process ID for each process that generated page I Os during the sample interval For each process and stored procedure that generated page I Os it shows the name and ID of the database that...

Страница 202: ...Each statement of any stored procedure that was executed during the most recent sample interval is identified by the name and ID of the database that contains the procedure the name and ID of the proc...

Страница 203: ...s Deleted Value for Sample Rows Inserted Value for Sample Rows Updated Value for Sample Rows Updated Directly Value for Sample Transactions Value for Session Rows Deleted Value for Session Rows Insert...

Страница 204: ...Transaction activity 190 Historical Server...

Страница 205: ...views 164 charsets directory 34 client connections See connections client playback 64 79 commands See also utilities histserver 13 20 33 histsrvr 20 31 37 hs_create_alarm 4 51 75 hs_create_filter 4 54...

Страница 206: ...4 89 format of 95 location of 69 90 owner of 90 permissions on 10 11 24 71 90 data item control record 94 data items definitions of 103 procedure CPU time 171 procedure elapsed time 171 Process ID 171...

Страница 207: ...5 97 hs_create_view command 4 72 75 hs_delete_data command 73 hs_initiate_playback command 5 64 65 74 hs_initiate_recording command 4 49 74 hs_list command 4 10 23 66 68 75 91 hs_playback_sample comma...

Страница 208: ...iles 90 P P parameter 22 35 38 parameters D 10 21 69 90 i 21 l 21 34 n 22 P 22 35 38 S 22 47 start up 20 22 U 11 22 35 38 v 22 password in start up command 22 prompting for 22 permissions control file...

Страница 209: ...1 for creating tables 65 71 for creating tables in Adaptive Server 97 for start up 12 server configuration utility 25 server level views 124 services list 27 session control record 92 session ID 4 ses...

Страница 210: ...torical Server on 12 starting Historical Server 33 stopping on 34 user name 22 user defined sample intervals 160 utilities bcp 90 cut 101 dscp 13 dsedit 13 17 ocscfg 17 server configuration 25 V v par...

Отзывы:

Нет отзывов