Caching the Application Engine Server 緩存應(yīng)用程序引擎服務(wù)器

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Caching the Application Engine Server

緩存應(yīng)用程序引擎服務(wù)器

Application Engine caches metadata just like the application server. This caching enhances performance because a program can refer to the local cache for any objects that it uses.

應(yīng)用程序引擎會(huì)像應(yīng)用程序服務(wù)器一樣緩存元數(shù)據(jù)。這種緩存提高了性能，因?yàn)槌绦蚩梢砸盟褂玫娜魏螌?duì)象的本地緩存。

Cache Directory Location

高速緩存目錄位置

Application Engine programs that run on a Microsoft Windows NT or UNIX server lock their own cache directory for the duration of a run. You find these directories under the master cache directory. The master directory is created under the directory specified by the CacheBaseDir variable in the PeopleSoft Process Scheduler configuration file. If all existing cache directories are locked, a new one is created. Cache subdirectories are named sequentially, starting at 1.

在Microsoft Windows NT或UNIX服務(wù)器上運(yùn)行的應(yīng)用程序引擎程序在運(yùn)行期間鎖定自己的緩存目錄。您可以在主緩存目錄下找到這些目錄。主目錄是在PeopleSoft Process Scheduler配置文件中的CacheBaseDir變量指定的目錄下創(chuàng)建的。如果所有現(xiàn)有的緩存目錄都被鎖定，則會(huì)創(chuàng)建一個(gè)新的緩存目錄。緩存子目錄按順序命名，從1開始。

If you do not enter a fully qualified path for the CacheBaseDir variable, then Application Engine creates a cache directory within the directory in which the program is set to run.

如果沒有為CacheBaseDir變量輸入完全限定路徑，則應(yīng)用程序引擎將在設(shè)置為運(yùn)行程序的目錄中創(chuàng)建一個(gè)緩存目錄。

Note: Do not share the CacheBaseDir variable with application servers and do not use environment variables when specifying CacheBaseDir because the system does not resolve them. For example, do not set CacheBaseDir to $PS_CFG_HOME.

附注：不要與應(yīng)用服務(wù)器共享CacheBaseDir變量，也不要在指定CacheBaseDir時(shí)使用環(huán)境變量，因?yàn)橄到y(tǒng)沒有解析它們。例如，不要將CacheBaseDir設(shè)置為$PS_CFG_HOME。

Cache Parameters

緩存參數(shù)

The PSPRCS.CFG (PS_SERVER_CFG) file has two additional cache parameters. They are:

PSPRCS.CFG（PS_SERVER_CFG）文件有兩個(gè)額外的緩存參數(shù)。它們是：

Enable Server Caching
啟用服務(wù)器緩存
Server Cache Mode
服務(wù)器緩存模式

Do not alter these settings from the delivered defaults. These settings are reserved for future use.

不要從傳遞的默認(rèn)值更改這些設(shè)置。這些設(shè)置保留以備將來使用。

Freeing Locked Temporary Tables

釋放鎖定的臨時(shí)表

If you use dedicated temporary tables for Application Engine programs, then you might need to free, or unlock, a temporary table if the program running against it terminates abnormally. Because most Application Engine programs run through PeopleSoft Process Scheduler, typically you use Process Monitor to unlock the temporary tables. Deleting or restarting a process using Process Monitor automatically frees the locked temporary tables.

如果對(duì)應(yīng)用程序引擎程序使用專用的臨時(shí)表，則在針對(duì)該臨時(shí)表運(yùn)行的程序異常終止時(shí)，可能需要釋放或解鎖該臨時(shí)表。因?yàn)榇蠖鄶?shù)應(yīng)用程序引擎程序通過PeopleSoft進(jìn)程計(jì)劃程序運(yùn)行，所以通常使用進(jìn)程監(jiān)視器來解除對(duì)臨時(shí)表的鎖定。使用Process Monitor刪除或重新啟動(dòng)進(jìn)程會(huì)自動(dòng)釋放鎖定的臨時(shí)表。

For the programs that you invoke outside of PeopleSoft Process Scheduler, use the Manage Abends page. Programs running outside of Process Scheduler include those invoked from CallAppEngine PeopleCode and the command line.

對(duì)于您在PeopleSoft Process Scheduler之外調(diào)用的程序，請(qǐng)使用Manage Abends頁面。在Process Scheduler之外運(yùn)行的程序包括從CallAppEngine PeopleCode和命令行調(diào)用的程序。

To free locked temporary tables using the Manage Abends page:

要使用Manage A bend頁面釋放鎖定的臨時(shí)表，請(qǐng)執(zhí)行以下操作:

Select PeopleTools > Application Engine > Manage AE Abends..

選擇PeopleTools>應(yīng)用程序引擎>管理AE異常

Identify the program that has locked the temporary tables you want.

確定已鎖定所需臨時(shí)表的程序。

Use the process instance, run control ID, program name, user ID, and run date and time columns to uniquely identify programs.

使用流程實(shí)例、運(yùn)行控件ID、程序名、用戶ID以及運(yùn)行日期和時(shí)間列來唯一標(biāo)識(shí)程序。

Click the Temp Tables link.

單擊臨時(shí)表鏈接。

On the Temporary Tables page, click the Release button to unlock the temporary tables associated with the program.

在“臨時(shí)表”頁上，單擊“釋放”按鈕以解鎖與程序關(guān)聯(lián)的臨時(shí)表。

Analyzing Application Engine Programs

分析應(yīng)用程序引擎程序

Application Engine programs can be analyzed by using the associated temporary table data. You can retain temporary table data by enabling temporary table data tracing in PeopleSoft Configuration Manager.

可以使用關(guān)聯(lián)的臨時(shí)表數(shù)據(jù)來分析應(yīng)用程序引擎程序。您可以通過在PeopleSoft Configuration Manager中啟用臨時(shí)表數(shù)據(jù)跟蹤來保留臨時(shí)表數(shù)據(jù)。

See Enabling Application Engine Tracing

請(qǐng)參閱啟用應(yīng)用程序引擎跟蹤

Use AET Analyzer tool to analyze and view the results.

使用AET分析器工具來分析和查看結(jié)果。

This example illustrates the fields and controls on the Filter Option in Log Analyzer.

此示例說明了日志分析器中的篩選器選項(xiàng)上的字段和控件。

Caching the Application Engine Server 緩存應(yīng)用程序引擎服務(wù)器,peoplesoft,peoplecode,peoplesoft,AE

In the AET Analyzer tool, filter out the Application Engine steps with temporary table using the Temp Table option, and analyze.

在aet analyzer工具中，使用temp table選項(xiàng)過濾出帶有臨時(shí)表的應(yīng)用程序引擎步驟，并進(jìn)行分析。

To filter:

要過濾：

In AET Analyzer tool, open the AET file.

在AET分析器工具中，打開AET文件。

Load the corresponding temporary table.

加載相應(yīng)的臨時(shí)表。

Note: After the temp table file is loaded, the Include All Tables check box is enabled.

注意：加載臨時(shí)表文件后，啟用“包括所有表”復(fù)選框。

Ensure that Include All Tables check box is cleared.

確保清除“包括所有表”復(fù)選框。

Select Apply Filter to display only AE steps with temporary table.

選擇應(yīng)用過濾器僅顯示帶有臨時(shí)表的AE步驟。

You can further filter the AE steps with temporary table based on a SQL action by selecting the desired action from the SQL View Options group box.

通過從SQL View Options組框中選擇所需的操作，可以根據(jù)SQL操作使用臨時(shí)表進(jìn)一步過濾AE步驟。

Highlight the AE step that you want to view and analyze, and click Diff Temp Table button.

突出顯示要查看和分析的AE步驟，然后單擊"差異溫度表"按鈕。

The result displays the modification done to temporary table data.

結(jié)果顯示對(duì)臨時(shí)表數(shù)據(jù)所做的修改。

Configuring Application Engine Action Plug-ins

配置應(yīng)用程序引擎操作插件

PeopleTools allows you to configure an Application Engine action plug-in to alter the SQL or PeopleCode actions of any Application Engine.

PeopleTools允許您配置一個(gè)應(yīng)用程序引擎操作插件來改變?nèi)魏螒?yīng)用程序引擎的SQL或PeopleCode操作。

The configured plug-in action is executed at runtime. This effectively allows you to modify the code without actually customizing or re-designing the Application Engine program.

配置的插件動(dòng)作在運(yùn)行時(shí)執(zhí)行。這實(shí)際上允許您修改代碼，而無需實(shí)際自定義或重新設(shè)計(jì)應(yīng)用程序引擎程序。

Configure the selected SQL or PeopleCode action of the Application Engine program by adding new SQL, PeopleCode, or both and/or by replacing the existing SQL or PeopleCode action through PIA in the AE Action Plugin page (PeopleTools, Application Engine).

配置應(yīng)用程序引擎程序的選定SQL或PeopleCode操作，方法是在AE操作插件頁面（PeopleTools，應(yīng)用程序引擎）中添加新SQL、PeopleCode或兩者，和/或通過PIA替換現(xiàn)有SQL或PeopleCode操作。

Note: You can add or replace only SQL and PeopleCode actions in the Application Engine program. Only sections with steps having SQL or PeopleCode actions of the Application Engine program, which you plan to configure, will be displayed in PIA. This feature is not designed to add new sections or steps to an existing Application Engine program.

注意：您只能在應(yīng)用程序引擎程序中添加或替換SQL和PeopleCode操作。只有包含您計(jì)劃配置的Application Engine程序的SQL或PeopleCode操作的步驟的部分才會(huì)顯示在PIA中。此功能不是為向現(xiàn)有應(yīng)用程序引擎程序添加新部分或步驟而設(shè)計(jì)的。

Actions belonging to the same step of the same section of the Application Engine program can have multiple plug-in actions defined. The plug-in action type does not have to match the action type that is selected for configuration. You can re-use the same SQL or PeopleCode plug-in action multiple times for different Application Engine programs.

屬于Application Engine程序的同一部分的同一步驟的操作可以定義多個(gè)插件操作。插件操作類型不必與為配置選擇的操作類型匹配。您可以重復(fù)使用為不同的應(yīng)用程序引擎程序多次執(zhí)行相同的SQL或PeopleCode插件操作。

The Application Engine action that is being configured cannot be used as a plug-in to configure another Application Engine program. Also, you cannot define a plug-in for the Application Engine action that is already been used as a plug-in.

正在配置的應(yīng)用程序引擎操作不能用作插件來配置另一個(gè)應(yīng)用程序引擎程序。此外，不能為已經(jīng)用作插件的Application Engine操作定義插件。

For example, if Application Engine program A action Y is configured to use Application Engine program B action X as a plug-in, then Application Engine program A action Y cannot be used as a plug-in for any other Application Engine program. Also, you cannot configure a plug-in for Application Engine program B action X.

例如，如果應(yīng)用程序引擎程序A操作Y配置為將應(yīng)用程序引擎程序B操作X用作插件，則應(yīng)用程序引擎程序一個(gè)動(dòng)作Y不能用作任何其他應(yīng)用程序引擎程序的插件。此外，不能為應(yīng)用程序引擎程序B操作X配置插件。

Ensure that information such as state records, temporary tables, PeopleCode variables that are required by the plugged-in action is made available from the configured Application Engine program.

確保諸如狀態(tài)記錄、臨時(shí)表、PeopleCode變量之類的信息可以從配置好的Application Engine程序中獲得。

To add new Application Engine plug-in actions:

要添加新的Application Engine插件操作，請(qǐng)執(zhí)行以下操作:

In Application Designer, identify an existing or create a new Application Engine program with the SQL or PeopleCode actions that you want to use to configure the SQL or PeopleCode actions of any Application Engine program.

在“應(yīng)用程序設(shè)計(jì)器”中，使用要用于配置任何應(yīng)用程序引擎程序的SQL或PeopleCode操作的SQL或PeopleCode操作來標(biāo)識(shí)現(xiàn)有的應(yīng)用程序引擎程序或創(chuàng)建新的應(yīng)用程序引擎程序。

To create an Application Engine program, see Creating, Opening, and Renaming Programs

若要?jiǎng)?chuàng)建應(yīng)用程序引擎程序，請(qǐng)參見創(chuàng)建、打開和重命名程序

In the PIA, open AE Action Plugin page by selecting PeopleTools > Application Engine > AE Action Plugins.

在PIA中，通過選擇PeopleTools>應(yīng)用引擎>AE Action Plugins來打開AE Action Plugin頁面。

Choose the Application Engine program that you want to configure by plugging-in the desired SQL or PeopleCode actions from the newly created Application Engine program.

通過從新創(chuàng)建的應(yīng)用程序引擎程序中插入所需的SQL或PeopleCode操作，選擇要配置的應(yīng)用程序引擎程序。

See the subsequent Configuration Options section for details.

有關(guān)詳細(xì)信息，請(qǐng)參閱后續(xù)的配置選項(xiàng)部分。

Verify the configured Application Engine program in Application Designer to know the impact of the plug-ins.

在應(yīng)用程序設(shè)計(jì)器中驗(yàn)證已配置的應(yīng)用程序引擎程序，以了解插件的影響。

You can identify the configured SQL or PeopleCode action by a red flash on its icon.

您可以通過其圖標(biāo)上的紅色閃光來識(shí)別配置的SQL或PeopleCode操作。

This image shows the configured SQL action with a red flash. On the code pane, the additional code is highlighted in blue, code being replaced is in strikeout, and the replacement code in red. The codes are displayed based on the order of execution defined in the PIA.

此圖像顯示了配置的SQL操作，并顯示了紅色閃光。在“代碼”窗格上，附加代碼以藍(lán)色突出顯示，被替換的代碼以刪除線顯示，替換代碼以紅色突出顯示。代碼是根據(jù)PIA中定義的執(zhí)行順序顯示的。

Caching the Application Engine Server 緩存應(yīng)用程序引擎服務(wù)器,peoplesoft,peoplecode,peoplesoft,AE

Note: You can use the %AECallerApplId system variable to identify the name of the Application Engine program that executed a plug-in action or a call section to the currently executing program. For more details, see “%AECallerApplId” (PeopleCode Language Reference)

On-Exit Application Engine Plug-in

出口應(yīng)用引擎插件

PeopleTools allows you to configure an On-Exit Application Engine plug-in at the end of an Application Engine program. This enables the Application Engine program to run and exit based on the conditions defined for the On-Exit Application Engine plug-in.

PeopleTools允許您在應(yīng)用程序引擎程序結(jié)束時(shí)配置On-Exit應(yīng)用程序引擎插件。這使Application Engine程序能夠根據(jù)為On-Exit Application Engine插件定義的條件運(yùn)行和退出。

On the PIA, you can specify which section, step, SQL or PeopleCode action should run on-exit from an Application Engine program.

在PIA上，您可以指定從應(yīng)用程序引擎程序退出時(shí)應(yīng)該運(yùn)行哪個(gè)部分、步驟、SQL或PeopleCode操作。

Note: On-Exit plug-ins can be configured for any existing Application Engine programs.

注意：可以為任何現(xiàn)有的應(yīng)用程序引擎程序配置On-Exit插件。

You can verify the configured On-Exit Application Engine plug-in in the Application Designer.

您可以在應(yīng)用程序設(shè)計(jì)器中驗(yàn)證已配置的On-Exit應(yīng)用程序引擎插件。

This example shows an On-Exit Application Engine plug-in configured in the Application Designer.

此示例顯示在應(yīng)用程序設(shè)計(jì)器中配置的On-Exit應(yīng)用程序引擎插件。

Caching the Application Engine Server 緩存應(yīng)用程序引擎服務(wù)器,peoplesoft,peoplecode,peoplesoft,AE

Configuration Options

配置選項(xiàng)

Use the AE Action Plugin page to configure Application Engine action plug-in and On-Exit Application Engine plug-in.

使用AE操作插件頁面配置應(yīng)用程序引擎操作插件和On-Exit應(yīng)用程序引擎插件。

This example illustrates the fields and controls on the AE Action Plugin page. You can find definitions for the fields and controls later on this page.

本示例說明了AE操作插件頁面上的字段和控件。您可以在本頁稍后找到字段和控件的定義。

Caching the Application Engine Server 緩存應(yīng)用程序引擎服務(wù)器,peoplesoft,peoplecode,peoplesoft,AE

Use these configuration options to configure a delivered Application Engine program:

*Field or Control*	*Description*
Enabled	Select this check box to enable the configuration.
*Field or Control*	*Description*
Section	Select a section of the delivered Application Engine program,? which you plan to configure. Only sections with steps having SQL or PeopleCode are listed.
Step	Select a step of the chosen section. Only steps that have SQL or PeopleCode actions are listed.
Action	Select an action from the chosen step.
Plugin Name	Select the new Application Engine program that contains the new SQL or PeopleCode action, which will be used to configure the delivered Application Engine program.
Section	Select the required section from the new Application Engine program.
Step	Select the required step from the selected section.
Action	Select the SQL or PeopleCode action from the selected step to add before or after the existing action, or to replace the existing action.
Mode	The three modes that decide the execution order of the configured Application Engine action: Before - Execute the new Application Engine action before the existing action. After - Execute the new Application Engine action after the existing action. Replace - Execute the new Application Engine action instead of the existing action.
Order within Mode	This field is required if the same action belonging to the same step of the same section of the configured Application Engine program has multiple plug-ins using the same mode. The value entered in this field decides the sequence in which the actions within the mode run during execution.
Description	(Optional) Descriptive notes.

Use these configuration options to configure On-Exit Application Engine plug-in:

*Field or Control*	*Description*
Enabled	Select this check box to enable the On-Exit plug-in configuration.
Plugin Name	Select the On-Exit Application Engine plug-in.
Section	Select a section of the On-Exit Application Engine plug-in that you plan to run.
Step	Select a step of the selected section.
Action Type	Select an action of the selected step.
<Exit Conditions>	These are the exit conditions: On Success On Skip Step On Break On Abort On Skip The On-Exit Application Engine plug-in runs based on the exit condition defined in the Application Engine program. For example, for an Application Engine program, if you set the On-Exit plug-in to run for the On-Break exit condition, the On-Exit plug-in runs when the last action executed before the Application Engine program exited was a SQL or PeopleCode action that issued a Break condition. See documentation for SQL and PeopleCode actions. See Using PeopleCode in Application Engine Programs Note: At least one of the exit conditions must be selected. ?Otherwise, an error is displayed while saving.

Note: In the PIA, the Actions Plugin grid gets disabled if the selected Application Engine program does not have SQL or PeopleCode actions, and a message is displayed stating that only On-Exit plug-ins can be configured.

Performance

性能

Sometimes plug-in changes may not be immediately recognized. It might take at most ten minutes for the changes to be recognized.

有時(shí)插件更改可能無法立即識(shí)別。可能最多需要10分鐘才能識(shí)別更改。

The processes where it takes time for the plug-in changes to come in effect are:

插件更改生效需要時(shí)間的流程如下:

When an active application server is running CallAppEngine() PeopleCode.
當(dāng)活動(dòng)應(yīng)用服務(wù)器運(yùn)行CallAppEngine（）PeopleCode時(shí)。
When viewing an Application Engine Program Flow view in an active Application Designer session.
在活動(dòng)的應(yīng)用程序設(shè)計(jì)器會(huì)話中查看應(yīng)用程序引擎程序流視圖時(shí)。
When an Application Engine program begins processing before the plug-in change is initiated.
當(dāng)應(yīng)用程序引擎程序在插件更改啟動(dòng)前開始處理時(shí)。

Note that there cases where plug-in changes are immediately recognized, and those are:

請(qǐng)注意，在某些情況下，插件更改會(huì)立即被識(shí)別，這些情況是:

While stopping and restarting any one process from the above set of processes.
同時(shí)停止和重新啟動(dòng)上述進(jìn)程集中的任何一個(gè)進(jìn)程。
When an Application Engine program is run through the Process Scheduler.

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