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* [[/Logger ODB tree]] The Midas [[mlogger|data logger]] serves multiple purposes related to data logging.

* [[Keys in the ODB /Logger tree| /Logger tree]] * [[/Logger ODB tree #Example | example /Logger tree]]

A '''subrun''' scheme is available in the MIDAS event logger utility ([[mlogger]]) ...ile into several individual data files. This feature might be helpful if a data file from a single run gets too large (>4 GB for example) and if shorter ru

* [[Keys in the ODB /Logger tree| /Logger tree]] * [[/Logger ODB tree #Example | example /Logger tree]]

* [[keys in the ODB /Logger tree | ODB /Logger tree ]] * [[keys in the ODB /Logger/Runlog/SQL subtree |ODB /Logger/Runlog/SQL subtree]]

== Data Formats in MIDAS == ...ucture|"MIDAS"]] and [[Event Structure#FIXED Format Event|"FIXED"]]. See [[MIDAS Event Construction]] for details.

* [[/Logger ODB tree| /Logger tree]] * [[Keys in the ODB /Logger tree| /Logger keys]]

* [[keys in the ODB /Logger tree | ODB /Logger tree ]] * [[keys in the ODB /Logger/Runlog/SQL subtree |ODB /Logger/Runlog/SQL subtree]]

* [[keys in the ODB /Logger tree | ODB /Logger tree ]] * [[keys in the ODB /Logger/Runlog/SQL subtree |ODB /Logger/Runlog/SQL subtree]]

This information has been added to documentation under [[History System]], [[/Logger ODB tree]], [[/History ODB tree]] ...e data into the history, mhttpd, mhist & co can use this interface to read data from the history. The interface is defined in history.h

* [[Keys in the ODB /Logger tree| keys in /Logger tree]] * [[Keys in the ODB /Logger/Channels subtree |keys in /Logger/Channels subtree]]

...nto different saved files based on the Event ID or the Trigger Mask (see [[MIDAS Event Structure]]). ...s way, it is necessary to set up the required number of [[Keys in the ODB /Logger/Channels tree #Multiple Logging Channels | logging Channels]]. By default,

...is#Analyzer | Analyzer]]''' → ''Data consumer for Online/Offline data analyzer'' * '''[[Data Logger]]''' → ''Data Consumer for data recording''

;[[Data Formats#byte-ordering | Byte-ordering]] : [[Current supported Hardware |supported in MIDAS]]

** What is Midas: ... DAQ for intermediate phys. expt. ** What Midas can do for you: ... collect data from different source (HW, Network)

.... For example, the Data Logger [[mlogger]] will create the {{Odbpath|path=/Logger}} ODB tree, and a [[Frontend Application|Frontend]] will create the {{Odb * [[/Analyzer ODB tree]] → ''Reserved for the data analyzer''

* [[/Logger ODB tree| /Logger tree]] * [[Keys in the ODB /Logger/Channels subtree| /Logger/Channels subtree]]

* [[/Logger ODB tree| /Logger tree]] * [[Keys in the ODB /Logger/Channels subtree| /Logger/Channels subtree]]

The MIDAS package after [[Compilation & Build]] will contain a new directory ...) and the images (in {{Filepath|path=../bin}}) will be placed. Most of the MIDAS applications are located here. There a few other applications that can be m

...n;">''mevb''</span> is an event builder application which takes the MIDAS data output from several frontends, and assembles them into a new overall MIDAS event.