Running on RPi3 and sometimes cannot start up correctly. about thingsboard HOT 5 CLOSED

This will be fixed when we will support PostgreSQL. Stay tuned for new release.

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@zenz first let me clarify please couple questions:

1. have you reduced memory usage for both Thingsboard and Cassandra services according to setup documentation for RPi3 https://thingsboard.io/docs/user-guide/install/rpi/?
2. by saying "cannot start up correctly" you mean that Thingsboard service as process is not running OR process is running but you are not able to open UI?
3. could you please attach to issue entire thingsboard.out and thingsboard.log files?

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1. I already modify the memory usage as the document saids
2. two states, sometimes thingsboard service is running, but cannot open UI, sometimes even not running as I check with the service --status-all cmd.

thingsboard.log.txt
thingsboard.out.txt

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@zenz

thanks for the answers!

according to logs route cause is exception while connecting to Cassandra:

2017-02-17 18:18:46,178 [main] ERROR o.s.boot.SpringApplication - Application startup failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'annotationComponentDiscoveryService': Invocation of init method failed; nested exception is java.lang.NullPointerException
....
Caused by: java.lang.NullPointerException: null
at org.thingsboard.server.dao.AbstractDao.getSession(AbstractDao.java:41)
at org.thingsboard.server.dao.AbstractModelDao.findOneByStatement(AbstractModelDao.java:66)

We'll get back to you once we add fix for this kind of issues.

Just for confirmation.
I suppose this is happening only during the startup of the RPI3. And once cassandra is up and running and you restarting Thingsboard service everything works fine?

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@volodymyr-babak may be you are right, after several reboots, I can get the thingsboard running correctly.

1. I think the JVM 1.8 not running stable on RPi3
2. Cassandra eats too much memory yet.

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