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1
Forums / Buy passports, driving license, identity cards,certificates
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2
Firstly - thanks for this great framework - been spending my Christmas break playing with it and having great fun!

The issue I'm trying to resolve is that I am seeing that there are nodes that are being launched from windows that are not visible in the admin-ui - but are nonetheless being use when i launch a calculation.

I've got 3 raspberry pi cards and a Windows 10 laptop.  On the first of the raspberrypi-00 i run the driver and on raspberrypi-01 and -02 i am running one node each.  I'm using the n-body sample program - I'm launching the client from windows using ant run. 

I've modified the config file to have a lot of bodies (25000) and to use 125 bodies per task so that there are 200 tasks per job.   I reduced the number of time steps to 10 so that i get a nice round number of 2000 jobs total to run to make it easy to check that all tasks have run in the end.

When i run client like this i always see it finish with 2000 tasks completed and it takes around 2 minutes to complete.

However, i then launch some nodes from the windows machine.  They report connection success (see below).  But when i look at admin-ui it still shows only 2 nodes connected.  But when i run the client again (after resetting task counts and server statistics on admin-ui) it completes in less time and the number of tasks executed are less than 2000 - the "invisible" nodes are being used.....

   run:
        [java] node process id: 17564, uuid: F29EE8FA-D3E8-4C35-88CC-5C926AE71DFB
        [java] Attempting connection to the class server at raspberrypi-00:11111
        [java] RemoteClassLoaderConnection: Reconnected to the class server
        [java] JPPF Node management initialized on port 12001
        [java] Attempting connection to the node server at raspberrypi-00:11111
        [java] Reconnected to the node server
        [java] node successfully initialized



I initially had trouble getting the nodes to connect when using discovery, so it set it to false and then claimed to connect, but admin-ui is failing to see them although they are part of the network.  I've atteched the jppf-gui.properties and the jppf-node.properties.

Again, greatly enjoying using the tool but am just wondering if i'm misconfiguring something here or if i've maybe uncovered a bug.



Thanks!



3
Hello Laurent, jnh1201,

@Laurent - thanks for that solution! Turning off the UDP discovery also did the trick for me.  Began working right away!

I wanted to also add some interesting details from my experience.

I have a small raspberry pi cluster cluster and was running the driver on one of them.  From my laptop i was attempting to use the admin gui and failing to connect.  Since the laptop i am using is a work machine it has firewall set up and i assumed it was a firewall issue.  As a test of this i attempted to have a node connect to the driver from my laptop.  To my surprise it worked fine.

I looked at the config for the node, expecting to find that its default is to *not* do UDP discovery-  but, no, it also uses that.

So I guess that maybe the node is 'smart' enough to go ahead with the explicit host/port if they're in the config file (jppf-node.properties), but the admin gui isn't?

I'd be curious if anyone can explain the difference in behavior - I'd just like to understand.  It's working now, so I'm going to go and play with my raspberry pi cluster, but if anyone has a comment i'd be interested....

(and thanks again to Laurent Cohen for all his work in developing JPPF!)



 
4
Forums / Re: Please post a message when you register
« Last post by vasanthsubramanian on September 20, 2021, 06:20:51 PM »
Hello
5
Installation and Configuration / Getting the JPPF to work in kubernetes
« Last post by vasanthsubramanian on September 18, 2021, 03:32:32 AM »
Hi
I am trying to run JPPF in kubernetes in minikube but the client does not connect to driver.
Deployed the driver and node pods.  Nodes are connected to the driver, as per logs
Deployed a client project, containing TemplateApplicationRunner, TemplateJPPFTask and the jppf.properties, node and driver properties file
The client runs and submits a job and never finishes and seems to not able to send a message or connect to the driver. There is no log
for the results
The driver and node logs show no sign of call from the client
 
The node and driver properties are copied from the project without any change

JPPF configuration
============
jppf.discovery.enabled = true
jppf.discovery.acceptMultipleInterfaces = false
jppf.pool.size = 4

# manual connection configuration when discovery is disabled

jppf.drivers = driver1
driver1.jppf.priority = 0
driver1.jppf.pool.size = 4
driver1.jppf.server.host = 192.168.99.104. //minikube ip address
driver1.jppf.server.port = 11111
driver1.jppf.management.port = 11198


Here is the log in the client
=================
14:49:49.071 [main] DEBUG org.jppf.client.JPPFClient - submitting job JPPFJob[name=Template blocking job for KDP4, uuid=CF7B1704-48B2-4A15-8167-E9CF6C5EA640, blocking=true, nbTasks=1, nbResults=0, hasGraph=false]
14:49:49.071 [main] DEBUG org.jppf.client.balancer.JobManagerClient - submitting job JPPFJob[name=Template blocking job for KDP4, uuid=CF7B1704-48B2-4A15-8167-E9CF6C5EA640, blocking=true, nbTasks=1, nbResults=0, hasGraph=false]
14:49:49.076 [DriverDiscovery-0001-0001] DEBUG org.jppf.client.ClientConfigDriverDiscovery - initializing connections from discovery with priority = 0 and acceptMultipleInterfaces = false
14:49:49.078 [main] DEBUG org.jppf.client.balancer.AbstractClientJob - creating ClientJob #1
14:49:49.079 [main] DEBUG org.jppf.client.AbstractJPPFJob - job [CF7B1704-48B2-4A15-8167-E9CF6C5EA640] status changing from 'SUBMITTED' to 'PENDING'
14:49:49.079 [main] DEBUG org.jppf.client.AbstractJPPFJob - job [CF7B1704-48B2-4A15-8167-E9CF6C5EA640] fire status changed event for 'PENDING'
14:49:49.080 [main] DEBUG org.jppf.client.balancer.queue.JPPFPriorityQueue - adding bundle with ClientJob[uuid=CF7B1704-48B2-4A15-8167-E9CF6C5EA640, jobName=Template blocking job for KDP4, jobStatus=PENDING, broadcastUUID=null, nbTasks=1, taskGraph=null]
14:49:49.081 [main] DEBUG org.jppf.client.balancer.queue.JPPFPriorityQueue - Maps size information: priorityMap[shallow size=1, total elements=1]
14:49:49.083 [DriverDiscovery-0001-0001] DEBUG org.jppf.client.ClientConfigDriverDiscovery - looking for peers in the configuration
14:49:49.083 [DriverDiscovery-0001-0001] DEBUG org.jppf.client.ClientConfigDriverDiscovery - list of drivers: [driver1]
14:49:49.083 [DriverDiscovery-0001-0001] DEBUG org.jppf.client.ClientConfigDriverDiscovery - initPeers = false
14:49:49.088 [ReceiverThread] DEBUG org.jppf.utils.NetworkUtils - found network interface: name:eth0 (eth0)
14:49:49.088 [ReceiverThread] DEBUG org.jppf.utils.NetworkUtils - found network interface: name:lo (lo)
14:49:49.088 [ReceiverThread] DEBUG org.jppf.utils.NetworkUtils - found network interface: name:eth0 (eth0)
14:49:49.088 [ReceiverThread] DEBUG org.jppf.utils.NetworkUtils - found network interface: name:lo (lo)
14:49:49.089 [ReceiverThread] DEBUG org.jppf.comm.discovery.JPPFMulticastReceiver - Found 1 address: 172.17.0.3
Logs from Sep 20, 2021 to Sep 20, 2021 UTC

6
It works! Thanks :)

Code: [Select]
jppf.discovery.enabled = false
7
Hello,

Looking at the logs you provided, it looks like your admin console is configured to discover the driver through the built-in UDP multicast dsicovery mechanism.
I would suggest that you disable it (jppf.discovery.enabled = false) et configure the connection manually in the configuration file instead, as in this example:

Code: [Select]
jppf.discovery.enabled = false
jppf.drivers = driver1
driver1.jppf.server.host = <ip_address_or_host_name>
driver1.jppf.server.port = 11111

Could you please try that and let us know if this works?

Sincerely,
-Laurent
8
Forums / Open Drone Map, ODM, WebODM, NODEJS, CLUSTERODM etc
« Last post by mikandvs on September 03, 2021, 03:51:17 AM »
I'm trying to find any examples of people using OPEN DRONE MAP or WEBODM  and JPPF...

this seems like such a no brainer, I'm wondering why it's not being talked about.


Does anyone know anything?
9
Forums / Re: Please post a message when you register
« Last post by mikandvs on September 03, 2021, 03:48:37 AM »
Hello
10
Hi.

I modified "jppf-gui.properties" file in admin-UI as below.

Code: [Select]
driver1.jppf.server.host = myhost.remote

Or

Code: [Select]
driver1.jppf.server.host = xxx.xxx.xxx.xxx

The server is working well, too.

Code: [Select]
driver process id: 8094, uuid: 25390EE9-0E77-4BD9-93CC-13BDA82C69D2
ClientClassServer initialized
NodeClassServer initialized
ClientJobServer initialized
NodeJobServer initialized
management initialized and listening on port 11111
secure management initialized and listening on port 11443
Acceptor initialized
-  accepting plain connections on port 11111
- accepting secure connections on port 11443
JPPF Driver initialization complete

I turned off all port-based firewalls in all routes (Windows Desktop and my Linux server). I checked with Telnet and there is no problem with 11111, 11443 ports.

However, JPPF admin-UI searches only the localhost server and does not even attempt to access the remote address.

If the server is on localhost, it is scanned well.

I attached the log, so I'd like to know what the problem is.
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