JDownloader Community - Appwork GmbH
 

Notices

Reply
 
Thread Tools Display Modes
  #1  
Old 15.05.2019, 21:01
Lowrider0
Guest
 
Posts: n/a
Default Jdownloader keeps crashing/freezing system on Raspberry Pi 3b+

Hello,
I installed jdownloader on my Raspberry Pi 3b+ after this tutorial (last part):
**External links are only visible to Support Staff****External links are only visible to Support Staff**

Everything works and i can connect via myjdownloader but when I start downloading, the system freezes after some minutes, sonetimes 2 minutes, sometimes after 30 minutes. The LEDs on the Raspberry remain lit and it disconnects from the network.
I expected a thermal problem but the core temp never exceeded 55°C before it freezed again.

The Pi runs on OMV4. Before i tried it with docker but the same outcome.
What could be the problem?
Reply With Quote
  #2  
Old 16.05.2019, 00:06
barkle barkle is offline
DSL Light User
 
Join Date: Sep 2016
Posts: 34
Default

Me too. The load average rises over 15.

Login to the RPi over SSH/Putty as user pi. Wait till RPi freeze. Is the RPi still responding?

what happens when you write
Code:
ps -ef | grep java
If you get a respons you can kill the "java" and then you have access to your RPi.

Last edited by barkle; 16.05.2019 at 00:09.
Reply With Quote
  #3  
Old 16.05.2019, 01:27
Lowrider0
Guest
 
Posts: n/a
Default

No, it doesn't respond. The connection is killed and I cant reconnect. Both LEDs are constantly lit and i have to plug the power cord off and back in.
Reply With Quote
  #4  
Old 16.05.2019, 10:31
Jiaz's Avatar
Jiaz Jiaz is offline
JD Manager
 
Join Date: Mar 2009
Location: Germany
Posts: 79,286
Default

As I have several Rasperry/Odroid myself I can tell that a good power supply is required. Don't underestimate the *power* of a bad power supply and it's random freezes. I could solve ALL my freezes with better power supply and also had other users suffer freezes and also caused by bad power supply.
__________________
JD-Dev & Server-Admin
Reply With Quote
  #5  
Old 16.05.2019, 14:44
Lowrider0
Guest
 
Posts: n/a
Default

I will check that. How many amps should it deliver?
But the strange thing is that it only freezes while downloading, not when doing CRC-check or extracting.

Last edited by Lowrider0; 16.05.2019 at 14:47.
Reply With Quote
  #6  
Old 16.05.2019, 14:51
Jiaz's Avatar
Jiaz Jiaz is offline
JD Manager
 
Join Date: Mar 2009
Location: Germany
Posts: 79,286
Default

Downloading -> CPU & WLAN/LAN & DISK(USB) at once, whereas CRC only CPU & DISK, so the power usage is much higher while downloading.
Would recommend at least 2.5A but often it's not about the stated power but the stability. All my power supply had 2-2.5A but I've learned to spend more than 5 euros on a power supply
__________________
JD-Dev & Server-Admin
Reply With Quote
  #7  
Old 16.05.2019, 14:51
Jiaz's Avatar
Jiaz Jiaz is offline
JD Manager
 
Join Date: Mar 2009
Location: Germany
Posts: 79,286
Default

You could for example order 1-2 different ones and then send back in case it didn't help
__________________
JD-Dev & Server-Admin
Reply With Quote
  #8  
Old 16.05.2019, 16:43
barkle barkle is offline
DSL Light User
 
Join Date: Sep 2016
Posts: 34
Default

Quote:
Originally Posted by Jiaz View Post
As I have several Rasperry/Odroid myself I can tell that a good power supply is required.
Reading this (sorry its in german) **External links are only visible to Support Staff**..., I think it may be a problem with the revision of my RPi, as it is an RPi 3 B.

Please mention that the supplyvoltage is not 5,0V but 5.1V. It's because of the resistance of the wire an the connection. For the RPi 3 B they silently raised the supplyvoltage to 5.2V. The matter is a new design with cheaper elements and for that an great drop of the supplyvoltage. Which lesads to an undervoltage of the system.

And no, my RPi gets a switching power supply with 5V 2A (no battery charger), which normaly will fit. And there is only a SD-Card and an ethernet-wire connected to the device. So the total amount current should not exceed the limit of 2A (330mA board / 60mA ethernet [RJ45]).
Reply With Quote
  #9  
Old 16.05.2019, 16:55
Jiaz's Avatar
Jiaz Jiaz is offline
JD Manager
 
Join Date: Mar 2009
Location: Germany
Posts: 79,286
Default

I really would suggest to increase up to 2.5A
From german site
Quote:
Wenn man 2 A braucht, dann nimmt man also nie ein 2-A-Netzteil, sondern eine Stufe darüber. Mindestens 20 % bis 30 % mehr. Also mindestens 2,5 A. Besser mehr.
elektronik-kompendium.de/sites/raspberry-pi/1912111.htm

You should always choose power supply that is able to handle more than required.
__________________
JD-Dev & Server-Admin
Reply With Quote
  #10  
Old 17.05.2019, 16:35
Lowrider0
Guest
 
Posts: n/a
Default

2.5A Huawei charger didnt work, will try with lab power supply directly on GPIO and 5.1V. If it still crashes, its most likely not a power supply issue.
Reply With Quote
  #11  
Old 18.05.2019, 01:06
Lowrider0
Guest
 
Posts: n/a
Default

Same outcome with the BT-305 from Basetech. Output: 5.2V. Pretty sure it doesn't drop below 5V. I think i have a software problem here.
Are there any logs that could help find the problem?
Reply With Quote
  #12  
Old 18.05.2019, 19:48
Jiaz's Avatar
Jiaz Jiaz is offline
JD Manager
 
Join Date: Mar 2009
Location: Germany
Posts: 79,286
Default

Did you check sd card for errors? eg with badblocks?
I would connect Monitor and tail kernel logs while doing experiments. What java version are you using? java -version
Also I would try to limit speed of cpu (eg power saving governor) or via other settings and check if lower speed may result in stable use
__________________
JD-Dev & Server-Admin
Reply With Quote
  #13  
Old 19.12.2019, 09:50
barkle barkle is offline
DSL Light User
 
Join Date: Sep 2016
Posts: 34
Default

Sorry for the long delay, but I wanted to be sure.

I also had these crashes/freezes.

Since I changed the update from automatic to manuell no more crashes/freezes happend. Neither with high bandwith download nor with high load/temeprature. I think it is a problem with wiriting to the sd-card.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +2. The time now is 20:39.
Provided By AppWork GmbH | Privacy | Imprint
Parts of the Design are used from Kirsch designed by Andrew & Austin
Powered by vBulletin® Version 3.8.10 Beta 1
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.