Optimisation Wrapper
What do you want to increase?
i show a difference between fixtime and servertime.
I have a gap of 30 minutes.
But i don't know if it's due the communication delay or the traitment delay.
How can i check this ?
My server is not overloaded, mysql and traccar use around 2% of cpu, and mysql compute 800 Mo of RAM and traccar 250 Mo.
And more can you tell me why i have this error :
FINEST|3492/0|Service traccar|17-08-25 00:02:11|Fri Aug 25 00:02:11 CEST 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.Thanks
Please ignore this error. That's not a problem.
250 MB of memory sounds too low. I would recommend to increate it.
Ok thanks, how can i increase this ?
Please read YAJSW documentation for details:
http://yajsw.sourceforge.net/YAJSW%20Configuration%20Parameters.html
Anton,
I add this in wrapper.conf
wrapper.java.initmemory=512How can i explain or investigate about the gap between fixtime (or devicetime) and servertime ?
And for your information i add verifyServerCertificate=false in connection string parameter in traccar.xml and i don't have any error message about SSL in wrapper.log
<entry key='database.url'>jdbc:mysql://localhost:3306/traccar?allowMultiQueries=true&verifyServerCertificate=false& ...Thanks
Have you looked at the logs? Is there delay between connection, HEX data and decoded position? Is there delay with log time?
Anton,
I have this for example
2017-08-29 11:18:02 DEBUG: [EB2C39A9: 5027 < 72.5] HEX: 000000000000034b08040000015e2d34594a0...
2017-08-29 11:18:02 DEBUG: [EB2C39A9: 5027 > 72.5] HEX: 00000004
...
2017-08-29 11:18:02 INFO: [EB2C39A9] id: 35..., time: 2017-08-29 10:55:59, lat: 49.63804, lon: 5.85074, speed: 44.3, course: 97.0
2017-08-29 11:18:02 INFO: [EB2C39A9] id: 35..., time: 2017-08-29 10:56:03, lat: 49.63797, lon: 5.85199, speed: 44.3, course: 95.0
...
2017-08-29 11:18:02 INFO: [EB2C39A9] id: 35..., time: 2017-08-29 10:56:04, lat: 49.63795, lon: 5.85230, speed: 44.3, course: 94.0
...
2017-08-29 11:18:02 INFO: [EB2C39A9] id: 35..., time: 2017-08-29 10:56:05, lat: 49.63794, lon: 5.85262, speed: 44.3, course: 94.0How can i see connection step in log ?
Thanks
I don't see any delay, so I suspect it's device problem.
Ok thanks, i will check with teltonika
Hello Anton!
I hope you're well.
Greetings from Brazil from the city of Natal - RN!
I hereby support to find a situation that I believe is very peculiar.
I have noticed that daily between 8:00 pm and 10:00 pm on my linode the CPU spikes and the tracing application is left without access.
My services is hosted at https://www.linode.com/ and server and a vps with 4 cores CPU, 8 GB RAM, 160 GB SSD Storage, 5 TB Transfer 40 Gbps Network In 5000 Mbps Network Out I use PostgreSQL BD istanciado in AWS. I have at most 65 devices.
During the day the CPU gets maximum with 5% of consumption.
I have already used several resources to monitor and I can not locate the problem. The log does not generate information that indicates the problem
5 Linux commands to monitor CPU usage
1 - Top Command
2 - htop command
3 - netstat Command
4 - Vmstat Command
5 - ps command
In view of the above I request support so that you can standardize parameters and solve problems without risk of losses.
No more thank you for your valuable attention.
Flavio Dantas
Hello
I have around 250 vehicle and i keep 70 days of positions
Each device send around 100 positions by minute and my positions table is around 50 Go
How can i increase the wrapper process ?
For information i don't use geocode
I have logger.level set to all
And in wrapper.log i have this error :
Thanks