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The Retrieved Messages filter dialog is in the top left hand corner of a message window. This dialog normally set to "No Filter," meaning that all messages are retrieved and displayed by the viewer. However, you can specify that only those messages conforming to some filter pattern are retrieved. See the example in the screenshot below (which was to retrieve all messages except those whose text contains SIPMAIN).
Retrieved Message Filter Pattern Examples
Searching for Messages
There are two modes of searching (aka filtering). First is the simple search. In this case, just type the text you're interested in into the Filter dialog box. Second allows more complex searches, which use search expressions (see below).
Note that both kinds are CASE SENSITIVE
Simple SearchThese are some examples of the use of the message Filter:
If you simply want to retrieve only those messages containing some text, then just put the text in the dialog box and hit return. For instance, if you want to retrieve only messages with QUAD in the them.
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Retrieve only severity EROR messages (note that you have not had to specify the Severity field, since these simple searches are on all fields).
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EROR |
Expression Search
More complicated searches, such as those on specific fields other than the Text field, or those involving negation , must be preceded by ":". These are CASE SENSITIVE
Note - there is a bug here: in the expression search, the column names must be given all Lower Case (eg text), even though the actual column heading as printed in the GUI, is Capitalized First Letter (Text).
Retrieve only messages from the LCLS EPICS system:where the message Text includes 'failed'.
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:(facilitytext like 'LCLSfailed') |
Retrieve all the messages except those where the text contained some string - this uses the '!' (not) operator. Eg NOT containing DpSlc or physicssMatlab:
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