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Analysis of MongoDB diagnost.data files

My MongoDB crashed and I'm trying to figure out why. On Ubuntu MongoDB creates files in /var/lib/mongodb/diagnostic.data . These files, for example. metrics.2016-03-08T17-15-01Z0 , are binary files.

What tool should I use to analyze the diagnostic files MongoDB? What data does the diagnostic file have?

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I believe that at the moment, MongoDB does not have a tool to view this. Please refer to. This comment from MongoDB engineer.

serverStatus, replSetGetStatus, collStats of local.oplog.rs.stats, buildInfo, getCmdLineOpts, hostInfo - this data is collected in accordance with the latest

To understand the data collected, go to the source code of MongoDB .

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You can view the files contained data metrics... with a tool bsondump , which is included in each unit MongoDB.

Just follow bsondump metrics.2016-03-08T17-15-01Z0 and print the contents of the decoded file.

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MongoDB 3.2 collects statistics every second server (the default interval) in the diagnostics files within the directory diagnost.data. This data is collected for MongoDB server behavior analysis by MongoDB engineers. I think that has not yet released a tool / instrument for the public to analyze the captured data.

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