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rdisp/TRACE_COMPS - Enable/disable trace for components

rdisp/TRACE_COMPS - Enable/disable trace for components

PERFORM Short Reference   rdisp/max_wprun_time - Maximum work process run time  
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| Parameter : rdisp/TRACE_COMPS |
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| Short description: Enable/disable trace for components |
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| Parameter description : |
| ----------------------- |
| There is a developer trace file for each work process in the SAP |
| system. You can activate and deactivate the components individually. |
| You can change the trace level and components at runtime using the |
| dpmon program or transaction SM50. |
| |
| For reasons of performance and compatibility, there is still the |
| global trace level ( %%rdisp/TRACE%% ). The "string with the active |
| components" is new. |
| Each component has a unique ID consisting of a |
| code letter. The following components exist: |
| A (ABAP) |
| B (Database) |
| C (DBSL, Database interface) |
| D (Diag) |
| E (Enqueue) |
| F (JSF, Java Startup Framework) |
| G (NLS, I18N) |
| H (ICF, Internet Communication Framework) |
| I (IPC) |
| J (Java VM) |
| L (Batch Log) |
| M (Task handler) |
| N (SNC, Secure Network Communication) |
| P (Paging) |
| R (Roll) |
| S (Spool) |
| T (Debugging system) |
| W (WebGui, ITS) |
| X (Memory Management) |
| Y (Screen) |
| You can control the status of the components using |
| rdisp/TRACE_COMPS as follows. |
| Component X |
| - is inactive if the code letter is not in the string |
| (no trace whatsoever) |
| - Writes the trace only at level 1 (errors), if the component is in |
| the string as a lower-case letter. |
| - Also writes the trace at a higher level, if it is included as an |
| upper-case letter (and %%rdisp/TRACE%% is set correspondingly |
| |
| Therefore, if you want to write a trace at level 1 for all |
| components, but only the task handler component at a higher level, |
| the string must have, for example, the value "Mdyabcirplesxn". Since |
| this is, of course, far too cryptic, you can start the string with |
| "All" (all IDs upper-case) or "all" (all IDs lower-case), and then |
| simply list any exceptions. |
| |
| Examples: |
| - rdisp/TRACE_COMPS =all, M |
| stands for: all at level 1, only task handler at higher level. |
| This is also the default. |
| - rdisp/TRACE_COMPS =All, ads |
| stands for: All at the highest levels, but not the Diag, ABAP, |
| or spool. |
| Caution: If the parameter does not have any effect, formulate the |
| string so that it begins with all or All. |
| |
| Background |
| ----------- |
| - There is an area in shared memory for each work process in which |
| the current trace level and string are stored and in which new |
| values can be entered using ABAP or the "dpmon" program. These |
| values take effect at the next request transfer from the work |
| process. |
| - If you want to force the work process to use the values |
| immediately (only required in exceptional cases: loops, and so on),|
| you must first change the values in shared memory (ABAP or dpmon) |
| and then use "kill -USR1 <pid>" (or USR2) to send the work process |
| a signal. If the signal handling does not find any values for the |
| level/string in the shared memory, it reacts as previously, that |
| is, USR1 lowers the level by 1, USR2 increases the level by 1. |
| - Trace logging allows you to control the trace for the selected |
| components. The relevant parameters are listed below. |
| |
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| Work area: Dispatcher |
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| Unit : Special character string |
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| Default value : all, M |
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| Who is permitted to make changes : For problem analysis by SAP only |
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| Limitations for Operating Systems: None |
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| Limitations for Database Systems: None |
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| Are other parameters affected or dependent : : %%rdisp/TRACE%% |
| %%rdisp/TRACE_LOGGING%% |
| %%rdisp/TRACE_PATTERN_0%% |
| %%rdisp/TRACE_SEARCH_LIST%% |
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| Valid input, formats, areas : Character string (examples above) |
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| Short Description : Enable/disable trace for components
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| Applications Area : Dispatcher
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| Parameter Type : S
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| Changes allowed : X
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| Valid for Operating System : *
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| Dynamic switchable :
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| Same on all Servers :
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BAL Application Log Documentation   rdisp/max_wprun_time - Maximum work process run time  
This documentation is copyright by SAP AG.

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