Details
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Improvement
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Status: Backlog
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Minor - P4
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Resolution: Unresolved
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None
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None
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None
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Fully Compatible
Description
Hi,
As there are these data files full of useful information in the diagnostic.data, it would be nice to have a way built in the server to use them somehow.
I wrote a simple interface utilizing two commands:
getDiagnosticDataFiles |
set1:PRIMARY> db.adminCommand({"getDiagnosticDataFiles":1})
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{
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"data" : [
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"metrics.2017-01-14T18-40-10Z-00000",
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"metrics.2017-01-15T13-52-41Z-00000",
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"metrics.interim"
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],
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"ok" : 1
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}
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set1:PRIMARY>
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To list the available files and
getDiagnosticDataFromFile |
set1:PRIMARY> db.adminCommand({"getDiagnosticDataFromFile":1,
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limit:0,
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skip:0,
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showOutput:false,
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startDate: ISODate("2017-01-11T10:02:00.024Z"),
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endDate: ISODate("2017-01-11T11:02:29.024Z"),
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filename:"metrics.2017-01-11T09-02-29Z-00000"})
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{
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"numDocumentsRead" : 54151,
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"numDocumentsMatched" : 3629,
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"data" : [ ],
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"startDateFilter" : ISODate("2017-01-11T10:02:00.024Z"),
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"endDateFilter" : ISODate("2017-01-11T11:02:29.024Z"),
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"skip" : NumberLong(0),
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"limit" : NumberLong(0),
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"ok" : 1
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}
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to read the content of a file with the parameters:
- filename : actually the filename of the archive we would like to handle
- skip, limit : skip and limit, skip defults to 0 limit default is 100
- showOutput: turn off data output generation to check filesize in records for example. (see the limitation described later)
- startDate: start date of data output generation default: 1970. január 1. 00:00:00
- endDate: end date of data output generation default DATENOW
Will create shortly a pull request, and would kindly ask for your suggestions, what to change in the implementation. I reused the getDiagnosticData commands structure, together with the ftdc_test implementation to list the directory content, and to parse the ftdc archive file.
The output generation has the generic 64MB limitation, which is somewhere around 600-700 documents/ftdc entries.
The interface is compatible with the 3.2 version of the diagnostic files aswell.
Best,
Attila
Attachments
Issue Links
- related to
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COMPASS-1661 Build a Compass plugin to view FTDC (Full-time data capture) data from server
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- Closed
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- links to