/Experiment ODB tree: Difference between revisions
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are described in the following sections. | are described in the following sections. | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Name ''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' STRING | * '''Type:''' STRING | ||
* '''Default:''' | * '''Default:''' | ||
</div> | </div> | ||
This key in the [[#top|/Experiment tree]] | |||
contains the name of the experiment. Filled automatically when the ODB is created. | |||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Buffer Sizes ''</span> subtree === | ||
* '''Type:''' DIR | |||
This key in the [[#top|/Experiment tree]] is a subtree to contain the sizes of the | |||
Midas Buffers for the experiment. Created with default values. The sizes can be changed to optimize the memory usage. See '''[[Event Buffer]]''' Size(s) for details. Other user-defined | |||
buffers may be present (e.g. for '''[[event filtering]]'''). | buffers may be present (e.g. for '''[[event filtering]]'''). | ||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | ==== <span style="color: purple;">''SYSMSG ''</span> ==== | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' DWORD | * '''Type:''' DWORD | ||
* '''Default:''' 100000 Bytes | * '''Default:''' 100000 Bytes | ||
</div> | </div> | ||
This key in the [[#Buffer Sizes|/Experiment/Buffer Sizes subtree]] | |||
contains the size of SYSMSG buffer. This buffer is used for MIDAS messages. | |||
<br> | <br> | ||
-------- | -------- | ||
<br> | <br> | ||
=== <span style="color: purple;">'' | ==== <span style="color: purple;">''SYSTEM ''</span> ==== | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' DWORD | * '''Type:''' DWORD | ||
* '''Default:''' 8MBytes | * '''Default:''' 8MBytes | ||
</div> | </div> | ||
This key in the [[#Buffer Sizes|/Experiment/Buffer Sizes subtree]] | |||
contains the size of SYSTEM buffer. See '''[[Event Buffer]]''' for details. | |||
<br> | <br> | ||
-------- | -------- | ||
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=== <span style="color: purple;">'' | === <span style="color: purple;">''MAX_EVENT_SIZE ''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' DWORD | * '''Type:''' DWORD | ||
* '''Default:''' 4MBytes | * '''Default:''' 4MBytes | ||
</div> | </div> | ||
This key in the [[#top|/Experiment tree]] | |||
specifies the maximum event size that can be acquired. The default value is half the | |||
'''[[# | '''[[#SYSTEM |size of the SYSTEM buffer]]'''. It can be increased if required | ||
(see '''[[Event Buffer]]'''). | (see '''[[Event Buffer]]'''). | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Menu Buttons''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | |||
* '''Type:''' STRING | * '''Type:''' STRING | ||
* '''Default:''' "Start, Pause, ODB, Messages, ELog, Alarms, Programs, History, Sequencer, Config, Help" | * '''Default:''' "Start, Pause, ODB, Messages, ELog, Alarms, Programs, History, Sequencer, Config, Help" | ||
</div> | |||
This key is added automatically by '''[[mhttpd]]''' to allow the Menu buttons that appear on the '''[[mhttpd|Main Status Page]]''' to be customized by | This key in the [[#top|/Experiment tree]] | ||
is added automatically by '''[[mhttpd]]''' to allow the Menu buttons that appear on the '''[[mhttpd|Main Status Page]]''' to be customized by | |||
removing unnecessary buttons or by changing their order. | removing unnecessary buttons or by changing their order. | ||
Without the "Pause" being present in the list of | Without the "Pause" being present in the list of | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Transition debug flag ''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' INT | * '''Type:''' INT | ||
* '''Default:''' 0 | * '''Default:''' 0 | ||
</div> | </div> | ||
This key in the [[#top|/Experiment tree]] contains a flag that, if set to 1, causes messages reporting transition progress to be output. | |||
<br> | <br> | ||
-------- | -------- | ||
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=== <span style="color: purple;">'' | === <span style="color: purple;">''Transition connect timeout''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' INT | * '''Type:''' INT | ||
* '''Default:''' 10000 | * '''Default:''' 10000 | ||
</div> | </div> | ||
This key in the [[#top|/Experiment tree]] contains the | |||
value of timeout for remote rpc connect | |||
<br> | <br> | ||
-------- | -------- | ||
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=== <span style="color: purple;">'' | === <span style="color: purple;">''Transition timeout''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' INT | * '''Type:''' INT | ||
* '''Default:''' 120000 | * '''Default:''' 120000 | ||
</div> | </div> | ||
This key in the [[#top|/Experiment tree]] constains the | |||
value of timeout for transition | |||
<br> | <br> | ||
-------- | -------- | ||
<br> | <br> | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Prevent start on alarms''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' BOOL | * '''Type:''' BOOL | ||
* '''Default:''' "n" | * '''Default:''' "n" | ||
</div> | </div> | ||
This key in the [[#top|/Experiment tree]] if set true will | |||
will prevent the run from starting if an '''[[alarm]]''' is true. | |||
<br> | <br> | ||
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=== <span style="color: purple;">'' | === <span style="color: purple;">''Prevent start on required program''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' BOOL | * '''Type:''' BOOL | ||
* '''Default:''' "n" | * '''Default:''' "n" | ||
</div> | </div> | ||
This key in the [[#top|/Experiment tree]] if set true | |||
will prevent the run from starting if one of the '''[[required]]''' clients is not running. | |||
<br> | <br> | ||
-------- | -------- | ||
<br> | <br> | ||
=== <span style="color: purple;">''Start-Stop Buttons''</span> === | |||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | |||
* '''Type:''' BOOL | |||
* '''Default:''' "y" | |||
</div> | |||
By default Start/Stop buttons are shown on the [[mhttpd]] main status page. These buttons can be suppressed by setting | |||
this key in the [[#top|/Experiment tree]] FALSE. | |||
<br> | <br> | ||
-------- | -------- | ||
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=== <span style="color: purple;">'' | === <span style="color: purple;">''Pause-Resume Buttons''</span> === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' BOOL | * '''Type:''' BOOL | ||
* '''Default:''' " | * '''Default:''' "n" | ||
</div> | </div> | ||
By default Pause/Resume buttons are shown on the [[mhttpd]] main status page. These buttons can be suppressed by setting | |||
this key in the [[#top|/Experiment tree]] FALSE. | |||
<br> | <br> | ||
-------- | -------- | ||
<br> | <br> | ||
=== <span style="color: purple;">''Edit on Start ''</span> subtree === | |||
=== <span style="color: purple;">'' | |||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' | * '''Type:''' DIR | ||
</div> | |||
This optional subdirectory in the [[#top|/Experiment tree]] may | |||
contain user-defined parameters which will be displayed for editing at the beginning of each run. See '''[[Edit-on-start Parameters]]''' for details. | |||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Parameter Comments ''</span> subtree === | ||
This optional subdirectory | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' DIR | |||
</div> | |||
This optional subdirectory in the [[#top|/Experiment tree]] may contain user-defined parameter comments that give more information about | |||
the '''[[Edit-on-start Parameters]]'''. | |||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">''Status items''</span> subtree === | |||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | |||
* '''Type:''' DIR | |||
</div> | |||
This key in the [[#top|/Experiment tree]] is a subtree which by default contains a link to the [[#Name|experiment name]]. Any links or keys | |||
created by the user in this optional subdirectory will be displayed on the [[mhttpd]] main status page. | |||
<br> | <br> | ||
-------- | -------- | ||
| Line 244: | Line 265: | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Lock when running ''</span> subtree === | ||
This optional subdirectory contains user-defined links to ODB parameters to prevent them being changed when the run is in progress. See '''[[Lock when running]]''' for details. | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' DIR | |||
</div> | |||
This optional subdirectory in the [[#top|/Experiment tree]] contains user-defined links to ODB parameters to prevent them being changed when the run is in progress. See '''[[Lock when running]]''' for details. | |||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | === <span style="color: purple;">''Security''</span> subtree === | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | |||
* '''Type:''' DIR | |||
</div> | |||
This optional subtree is created when the '''[[odbedit]]''' commands passwd or webpasswd are issued. It enables a user to set up security features. See '''[[Security]]''' | This optional subtree in the [[#top|/Experiment tree]] is created when the '''[[odbedit]]''' commands passwd or webpasswd are issued. It enables a user to set up security features. See '''[[Security]]''' | ||
<br> | <br> | ||
-------- | -------- | ||
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=== <span style="color: purple;">'' | ==== <span style="color: purple;">''Password ''</span> ==== | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' STRING | * '''Type:''' STRING | ||
* '''Default:''' | * '''Default:''' | ||
</div> | </div> | ||
This key in the [[#Security|/Experiment/Security subtree]] | |||
contains the encrypted password. Key is created when '''[[odbedit]]''' command passwd is issued. See '''[[security]]''' for details. | |||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | ==== <span style="color: purple;">''Allowed hosts''</span> subtree ==== | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | |||
* '''Type:''' DIR | |||
</div> | |||
This subtree is created when '''[[odbedit]]''' command passwd is issued. When created, this subtree is empty. | This subtree in the [[#Security|/Experiment/Security subtree]] is created when '''[[odbedit]]''' command passwd is issued. When created, this subtree is empty. | ||
Optionally, it may contain user-defined names of remote hosts allowed to have free access (i.e. without password) to the current experiment. See '''[[Security #Allowed Hosts|allowed hosts]]'''. | |||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | ==== <span style="color: purple;">''Allowed programs ''</span> subtree ==== | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | |||
* '''Type:''' DIR | |||
</div> | |||
This subtree is created when '''[[odbedit]]''' command passwd is issued. When created, this subtree is empty. | This subtree in the [[#Security|/Experiment/Security subtree]] is created when '''[[odbedit]]''' command passwd is issued. When created, this subtree is empty. | ||
Optionally, it may contain user-defined names of clients allowed to have free access (i.e. without password) to the current experiment. See '''[[Security #Allowed clients|allowed clients]]'''. | |||
<br> | <br> | ||
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<br> | <br> | ||
=== <span style="color: purple;">'' | ==== <span style="color: purple;">''Web Password''</span> ==== | ||
<div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | <div style="column-count:3;-moz-column-count:3;-webkit-column-count:3"> | ||
* '''Type:''' STRING | * '''Type:''' STRING | ||
| Line 295: | Line 330: | ||
</div> | </div> | ||
If '''[[Security #How to Setup Web Access Restrictions |web access restriction]]''' has been set up, this key | If '''[[Security #How to Setup Web Access Restrictions |web access restriction]]''' has been set up, this key in the [[#Security|/Experiment/Security subtree]] | ||
will contain an encrypted password for Web server access. Key is created when '''[[odbedit ]]''' command webpasswd is issued. | will contain an encrypted password for Web server access. Key is created when '''[[odbedit ]]''' command webpasswd is issued. | ||
If this key is present, the user will be requested to provide the "Web Password" when accessing the requested experiment in "Write Access" mode. The "Read Only Access" mode is still available to all users. | If this key is present, the user will be requested to provide the "Web Password" when accessing the requested experiment in "Write Access" mode. The "Read Only Access" mode is still available to all users. | ||
[[Category:ODB Tree]] | |||
Revision as of 15:13, 6 June 2014
Creating the /Experiment tree
The /Experiment ODB tree is created automatically when the ODB is first created.
Purpose
The /Experiment ODB tree contains information relevent to the experiment. Other optional keys are added by mhttpd or by the user to customize their experiment.
Examples
When initially created, the /Experiment tree contains the following keys:
[local:midas:S]/>ls -lrt /experiment
Key name Type #Val Size Last Opn Mode Value
---------------------------------------------------------------------------
Experiment DIR
Name STRING 1 32 14s 0 RWD midas
Buffer sizes DIR
SYSMSG DWORD 1 4 11h 0 RWD 100000
The following example shows the /Experiment tree for the DEAP experiment :
[local:deap:R]/>ls -lrt /experiment
Key name Type #Val Size Last Opn Mode Value
---------------------------------------------------------------------------
Experiment DIR
Name STRING 1 32 7s 0 RWD deap
Buffer sizes DIR
SYSMSG DWORD 1 4 23h 0 RWD 100000
SYSTEM DWORD 1 4 23h 0 RWD 640000000
BUF0 DWORD 1 4 23h 0 RWD 80000000
BUF1 DWORD 1 4 23h 0 RWD 80000000
....... other user-defined buffers not shown
MAX_EVENT_SIZE DWORD 1 4 23h 0 RWD 4194304
Menu Buttons STRING 1 256 5h 0 RWD Status, ODB, Messages, Elog, Alarms, Programs, History, MSCB, Sequencer, Config, Help
Transition debug flag INT 1 4 23h 0 RWD 0
Transition connect timeout INT 1 4 23h 0 RWD 10000
Transition timeout INT 1 4 23h 0 RWD 120000
edit on start DIR
Pedestals run BOOL 1 4 2h 0 RWD n
Write Data -> /Logger/Write data
BOOL 1 4 2h 0 RWD n
Comment -> /Experiment/Run Parameters/Comment
STRING 1 80 2h 0 RWD Sequenced Tests
Run Parameters DIR
Comment STRING 1 80 2h 0 RWD Sequenced Tests
Run Description STRING 1 256 7h 0 RWD Sequenced Tests
Prevent start on alarms BOOL 1 4 22h 0 RWD n
Prevent start on required prBOOL 1 4 22h 0 RWD n
Status items DIR
Experiment Name -> /Experiment/Name
STRING 1 32 7s 0 RWD deap
Start-Stop Buttons BOOL 1 4 5h 0 RWD y
Pause-Resume Buttons BOOL 1 4 5h 0 RWD n
Keys in /Experiment tree
The keys in the ODB /Experiment tree are described in the following sections.
Name
- Type: STRING
- Default:
This key in the /Experiment tree contains the name of the experiment. Filled automatically when the ODB is created.
Buffer Sizes subtree
- Type: DIR
This key in the /Experiment tree is a subtree to contain the sizes of the
Midas Buffers for the experiment. Created with default values. The sizes can be changed to optimize the memory usage. See Event Buffer Size(s) for details. Other user-defined
buffers may be present (e.g. for event filtering).
SYSMSG
- Type: DWORD
- Default: 100000 Bytes
This key in the /Experiment/Buffer Sizes subtree
contains the size of SYSMSG buffer. This buffer is used for MIDAS messages.
SYSTEM
- Type: DWORD
- Default: 8MBytes
This key in the /Experiment/Buffer Sizes subtree
contains the size of SYSTEM buffer. See Event Buffer for details.
MAX_EVENT_SIZE
- Type: DWORD
- Default: 4MBytes
This key in the /Experiment tree specifies the maximum event size that can be acquired. The default value is half the size of the SYSTEM buffer. It can be increased if required (see Event Buffer).
Menu Buttons
- Type: STRING
- Default: "Start, Pause, ODB, Messages, ELog, Alarms, Programs, History, Sequencer, Config, Help"
This key in the /Experiment tree is added automatically by mhttpd to allow the Menu buttons that appear on the Main Status Page to be customized by removing unnecessary buttons or by changing their order. Without the "Pause" being present in the list of menu buttons, the run cannot be paused/resumed, but only started/stopped. This is required by some experiments.
If MSCB support is built into MIDAS, the MSCB Menu button will also be shown.
Transition debug flag
- Type: INT
- Default: 0
This key in the /Experiment tree contains a flag that, if set to 1, causes messages reporting transition progress to be output.
Transition connect timeout
- Type: INT
- Default: 10000
This key in the /Experiment tree contains the
value of timeout for remote rpc connect
Transition timeout
- Type: INT
- Default: 120000
This key in the /Experiment tree constains the
value of timeout for transition
Prevent start on alarms
- Type: BOOL
- Default: "n"
This key in the /Experiment tree if set true will will prevent the run from starting if an alarm is true.
Prevent start on required program
- Type: BOOL
- Default: "n"
This key in the /Experiment tree if set true
will prevent the run from starting if one of the required clients is not running.
Start-Stop Buttons
- Type: BOOL
- Default: "y"
By default Start/Stop buttons are shown on the mhttpd main status page. These buttons can be suppressed by setting
this key in the /Experiment tree FALSE.
Pause-Resume Buttons
- Type: BOOL
- Default: "n"
By default Pause/Resume buttons are shown on the mhttpd main status page. These buttons can be suppressed by setting
this key in the /Experiment tree FALSE.
Edit on Start subtree
- Type: DIR
This optional subdirectory in the /Experiment tree may contain user-defined parameters which will be displayed for editing at the beginning of each run. See Edit-on-start Parameters for details.
Parameter Comments subtree
- Type: DIR
This optional subdirectory in the /Experiment tree may contain user-defined parameter comments that give more information about the Edit-on-start Parameters.
Status items subtree
- Type: DIR
This key in the /Experiment tree is a subtree which by default contains a link to the experiment name. Any links or keys
created by the user in this optional subdirectory will be displayed on the mhttpd main status page.
Lock when running subtree
- Type: DIR
This optional subdirectory in the /Experiment tree contains user-defined links to ODB parameters to prevent them being changed when the run is in progress. See Lock when running for details.
Security subtree
- Type: DIR
This optional subtree in the /Experiment tree is created when the odbedit commands passwd or webpasswd are issued. It enables a user to set up security features. See Security
Password
- Type: STRING
- Default:
This key in the /Experiment/Security subtree contains the encrypted password. Key is created when odbedit command passwd is issued. See security for details.
Allowed hosts subtree
- Type: DIR
This subtree in the /Experiment/Security subtree is created when odbedit command passwd is issued. When created, this subtree is empty. Optionally, it may contain user-defined names of remote hosts allowed to have free access (i.e. without password) to the current experiment. See allowed hosts.
Allowed programs subtree
- Type: DIR
This subtree in the /Experiment/Security subtree is created when odbedit command passwd is issued. When created, this subtree is empty. Optionally, it may contain user-defined names of clients allowed to have free access (i.e. without password) to the current experiment. See allowed clients.
Web Password
- Type: STRING
- Default:
If web access restriction has been set up, this key in the /Experiment/Security subtree will contain an encrypted password for Web server access. Key is created when odbedit command webpasswd is issued.
If this key is present, the user will be requested to provide the "Web Password" when accessing the requested experiment in "Write Access" mode. The "Read Only Access" mode is still available to all users.