Eclipse Community Forums: Kura » Publish high rate messages with DataService without H2DbService

Help

Home

Home » Eclipse Projects » Kura » Publish high rate messages with DataService without H2DbService

Show: Today's Messages :: Show Polls :: Message Navigator

Publish high rate messages with DataService without H2DbService [message #1838476]

Thu, 25 February 2021 21:22

Max Mueller

Messages: 9
Registered: November 2020

Junior Member

Hello,

I want to publish messages with a high rate e.g., 5 messages per second using DataService.

After 1000 messages the DB H2DbService reaches its capacity limit.

ERROR o.e.k.t.TestingPub - Error while publishing register
org.eclipse.kura.KuraStoreCapacityReachedException: "Error performing operation on store. Store capacity exceeded"

Is there a way to disable the DB Service without creating an own version of DataService?

Solution attempts: Rate limiter is disabled, store.purage-age = 5 (minimum), set message publish priority to 3 (then the limit should not apply).

Set store.capacity to MAXINT is one solution, but that is a messy solution.

How to get rid of this DB Service?

Report message to a moderator

Re: Publish high rate messages with DataService without H2DbService [message #1838485 is a reply to message #1838476]

Fri, 26 February 2021 08:03

Matteo Maiero

Messages: 423
Registered: July 2015
Location: Italy

Senior Member

Hello,
no, in the default implementation of the data service the db store cannot be removed.
As you have noted, you can tune the "Store Housekeeper-interval", the "Store Purge-age" and the "Store Capacity" to kick in more frequently and have a store capacity bigger than the default one.

Best regards,
Matteo

Report message to a moderator

Re: Publish high rate messages with DataService without H2DbService [message #1838535 is a reply to message #1838476]

Sun, 28 February 2021 20:09

Max Mueller

Messages: 9
Registered: November 2020

Junior Member

If somebody found this thread, this solution worked fine for me.
Max Mueller wrote on Thu, 25 February 2021 21:22

set message publish priority to 3 (then the limit should not apply).

I just mixed up the priorities.

//Parameter: topic, StringBufferMessage, qos, retain, priority
m_dataservice.publish(topic, publishMessage.getBytes(), 2, retain, 1);

Priority have to be 1 or 0, then the limit does not apply.

[Updated on: Sun, 28 February 2021 20:10]

Report message to a moderator

Previous Topic:	How to publish MQTT messages with a Kura component?
Next Topic:	I am unable to access raspberry pi 3 using VNC after installing kura

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Thu Apr 25 15:27:55 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter