Purge database size for events also

[hallard]

We need to decrease database size, on multitech GW with lot of devices, sometime admin interface does not answer anymore until we delete the following files:

• event.DLC and event.DCD
• rxframe.DLC and rxframe.DCD
• LATEST.LOG

As asked in decrease database size #601 We understand we can use parameter

 % amount of rxframes retained for each device/node
    {retained_rxframes, 50},

Is there something similar for events ?

Thansks

[gotthardp]

Yes, there is: {event_lifetime, 86400}. The number means how many seconds is an event displayed before it gets deleted.

[hallard]

Looks like #601 I setup this parameter to 3600 and still have events from 2hours, could it be a localtime or timezone issue? I've purged both from web interface. Can we purge thru API until it's fixed?

[gotthardp]

this is really weird, will have a look

the API allows you to delete all entries in a table (that's what the purge buttons do). simply HTTP DELETE /api/events, but be careful-- it deletes everything without any warning and any way to recover (that's why its not documented)

[autodomain]

:( Il mer 27 mar 2019, 16:10 Petr Gotthard notifications@github.com ha scritto:

this is really weird, will have a look

the API allows you to delete all entries in a table (that's what the purge buttons do). simply HTTP DELETE /api/events, but be careful-- it deletes everything without any warning and any way to recover (that's why its not documented)

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[gotthardp]

@hallard To further debug this issue I made the following updates to the latest master:

• I added new config parameter {trim_interval, 3600} to define how often (in seconds) is the database trimmed. Note that if you say {event_lifetime, 3600} and {trim_interval, 3600} your events will never be older than 2 (two!) hours.
• Upon startup the system (debug) prints Using config: following a list of config parameters to make sure nothing was misspelled not misplaced.

[hallard]

@gotthardp Thanks, I'll try this one setting both to 1800 to see, but not today, we need to finalise production by the end of day

[hallard]

@gotthardp

Looks like still not working for RX frames

    % amount of rxframes retained for each device/node
    {retained_rxframes, 10},
    % events duration on interface
    {event_lifetime, 1800},
    {trim_interval, 1800},

Frames pages 458 frames

Most recent before

Older before (2 days ago)

Events looks better despite the fact there are 3 old events but all other are fine

[gotthardp]

Concerning the events: please see the Last Occurred date. There are no old events.

[gotthardp]

Concerning the Frames: what you posted is not necessarily wrong, could you please (wait 1800 seconds after server start and then) filter out only one DevAddr? Is there a DevAddr that has more than a high number of old frames or not?

[jot4p]

Hi,

It's possible to remove all received frames, removing rxframe.DLC and rxframe.DCD ? Can I remove this with loraserver running ??

What is the best procedure ? Because my rxframes page does not load......

[JoobyPM]

Dear @gotthardp is it safe to remove rxframe.DLC and rxframe.DCD ? Or to configure retained_rxframes=0? Thank you for your reply.