source: fact/Evidence/readme.txt@ 14065

Last change on this file since 14065 was 12940, checked in by ogrimm, 13 years ago
History handling in Edd faster, improved drag and drop functionality, version of Edd for La Palma
File size: 4.7 KB
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2Version history
3---------------
4
519/5/2010 Service histories now available via DimRpc from DColl, not via .hist service
6 When regular expression compiling results in error, State is set to ERROR, not
7 FATAL. The erroneous expression is ignored in the following.
825/5/2010 Service history remains available if service itself become unavailable. If not
9 yet in memory, reading from file is tried. Improved error handling of
10 history files.
1128/5/2010 Changed name of 'State' service to 'Message' to better reflect its functionality.
12 Added client information to log file entries.
1330/5/2010 Created Bridge server that repeats services from one DNS to another.
14 Service quality now also written to slow data file.
1531/5/2010 Configuration file format follows semi-standard INI format.
167/6/2010 Separated History service from DColl. History format changed, now includes
17 service format (allows history access also when service is unavailable).
1811/6/2010 Bridge does not forward history service
1917/6/2010 Added SendToLog() method. Changed severity encoding of Message service to
20 use standard DIM structure of format "I:1;C"
2118/6/2010 Alarm server configuration accepts now one email address per server. A new
22 service for each observed server SERVERNAME/AlarmLevel contains the highest
23 level that occurred in the past. Reset of alarm level only via a DIM command.
2419/6/2010 ToString() now returns std::string
2523/6/2010 GetConfig() returns std::string. Non-blocking configuration request in case
26 GetConfig() not called from main thread. Access to configuration information
27 internally mutex protected.
2824/6/2010 Workaround for erroneous /SERVICE_LIST updates. Added static tokenize method to
29 Evidence class.
3030/6/2010 Made Lock()/Unlock() publicly available (mutex of type PTHREAD_MUTEX_ERRORCHECK),
31 in case signal is set with ActivateSignal() this signal will be blocked while locked.
32 Implemented experimental automatic full configuration tracking for Bridge.
337/7/2010 All commandHandler() and rpcHandler() safely translates data into string
34 using ToString(). EvidenceServer class constructor now takes std::string as argument.
35 Removed default configuration file from Config.
3619/7/2010 Added documentation. Replaced std::vector by std::map at several locations. Access to
37 class-wide pointer in Message() protected by mutex (currently the memory of the
38 second-last message will not be freed correctly if severity is FATAL). Added
39 History server configuration parameters to adjust buffer size.
4020/7/2010 SendToLog() does not call Message() in case of error, but writes error message to log.
4121/7/2010 Lock()/Unlock() do not report errors via Message(), but print to console and use
42 SendToLog(). That avoids a recursion problem since Message() also uses locking.
4326/7/2010 General command '/ResetMessage' will reset message text and severity. This feature is
44 used by Alarm if it receives a command to reset an alarm level.
45 ConfigChanged() is called as separate thread when configuration file changes. Thread ID
46 is checked in GetConfig() and also from this thread it will make blocking requests.
4712/8/2010 Added command to switch alarm server on/off (command 'Alarm/Switch').
489/12/2010 Minimum period for checking server status in Alarm set to 5 seconds.
492/2/2011 Changed encoding of WARN, ERROR and FATAL to 10,20,30 to allow intermediate values.
50 Non-blocking configuration request with default value was not working.
51 Signal handler calls abort() if invoked three times or more.
5210/6/2011 Services can be excluded from History buffer (mainly for large event data services)
5320/6/2011 History buffers periodically saved to file (in case program crash or computer reboot)
546/7/2011 Missing pthread_mutexattr_init() in Evidence constructor caused spurious errors when
55 locking mutex
562/8/2011 Used inCallback() method of DIM version v19r23 to decide between blocking or
57 non-blocking config request. Updated EvidenceServer::ToString() for B and V formats.
5816/2/2012 EvidenceServer::ToString() handles more complex single-type formats (e.g. "F:1;F:4;F"
5918/2/2012 History server detection for minimum change takes an index range given in the configuration
60 into account (e.g. Service:a-b:0.4 requires an minimum absolute change of 0.4 for the average
61 value of indices a to b)
6220/2/2012 Disabled padding per default in Evidence class constructor, and also in History and DColl
63 servers. EvidenceServer::ToString() can because of this now handle all format strings.
6424/2/2012 Improved interactive behaviour of legend items (drag&drop, context menu). Handling of histories in
65 Edd much faster now. Made a new version Edd:LP for La Palma. History server publishes a list of
66 services subscribed to.
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