The reports generated by the application exporting service are split by Stores and ActivePivots.
Store statistics are exported in files prefixed by store_ or
MultiVersionStore_ depending on the number of exported epochs, and are named
after the corresponding stores. ActivePivot statistics are exported in files
prefixed by pivot_ or MultiVersionPivot_ and are named after the
corresponding ActivePivot ids.
Each statistic file is a .json file regrouping the different structures that consume memory, that can then be parsed by MAC when doing an analysis.
Exported files are compressed using
Snappy, indicated by the
.sz file extension suffix.
For example, an export of the sandbox application will produce the following files:
- pivot_EquityDerivativesCubeDist.json.sz
- pivot_EquityDerivativesCube.json.sz
- store_City.json.sz
- store_CounterParty.json.sz
- store_Desk.json.sz
- store_Forex.json.sz
- store_Parameters.json.sz
- store_Product.json.sz
- store_Risk.json.sz
- store_Trade.json.sz
Each file is self-contained and includes all the information for a complete loading in the MAC application.
Therefore, it is possible to only import the reports for one ActivePivot, or a selection of stores.
In case you do not have direct access to a snappy decompression tool, MAC ships with a decompressing utility that can be used if the contents of the statistics need to be looked at.
Run mvn exec:java@unsnappy -Dunsnappy.file=<path/to/your/file/or/directory> to
extract the contents of the specified file or directory.