| Re: [milo-dev] OPC UA client development in java |
Hello Jens,
This milo project of OPC UA i have cloned from the Github website.
For this,I am using eclipse mars, and i have import the milo OPC UA project by using the existing maven project.
And i am getting 36 error in bsd-parser-core and bsd-parser-jason
do these 2 folders are important in development of opc ua client
or what i have to do for developing opc ua client.
As i am new in java programming, i dont know how to proceed
please help
thanks a lot
saurabh
Zitat von Jens Reimann <jreimann@xxxxxxxxxx>:
Just a simple question. If you are using milo as a client, why do you need
to source code of Milo in a local IDE setup? Why no go for the released
artifacts on Maven Central?
Or did I misunderstand your use case?
Cheers
Jens
On Thu, Feb 15, 2018 at 10:39 AM, Saurabh Samber <
saurabh.samber@xxxxxxxx-koeln.de > wrote:
Hello to all
I am using the milo OPC UA implementation and my program consist of 36
errors...but the errors are not inside the OPC UA Stack and OPC UA
SDK,actually the error are inside the bsd-parser-core and bsd-parser-json
Can you please tell me in this code what is bsd-parser-core and
bsd-parser-json
And do i need these two in OPC UA client development
One more thing you can see in this screen short in the attachment file
Under milo folder there is sdk-client, sdk-server and stack client,
stack-server but what is outside the milo folder.. there are also the same
folder sdk-client , sdk-server and stack
please explain me
thanks a lot for the help
best regards
Saurabh Samber
Zitat von Shigeru Ishida <ishida_shigeru@xxxxxxxxxxx>:
If it does not occur after 0.2.0, we will consider in this direction in
the future.
Thank you for the information.
On 2018/02/14 12:03, Kevin Herron wrote:
I've seen that error before and never figured out if it was actually amilo-dev mailing list
bug
in Milo (I've looked many times) or the sequence numbers on each chunk
and
the required check for continuity doing its job: i.e. a chunk was lost
due
to a dropped packet or some other error scenario in the vast amount of
networking abstractions sitting below Milo.
Starting in 0.2.0 the chunk handling was refactored - it might be worth
seeing if the same error happens there as well.
On Tue, Feb 13, 2018 at 6:04 PM, Shigeru Ishida <
ishida_shigeru@xxxxxxxxxxx>
wrote:
Hi Kevin,
I may have asked a similar question before. Sometimes
ChunkDecoder#decode()
error message is output when running the server.
These servers are developed using Milo 0.1.6, and connected clients are
also
created using 0.1.6. To these servers, 5-6 clients are connected at the
same time
and reading data.
1) Lightweight server without Apache Felix
Continuous running exceeded 35 days, and 13 error logs have been
output
so far.
2) Lightweight server with Apache Felix 5.6.10 (latest)
Continuous running exceeded 22 days and error log was output three
times
so far.
In addition, 1) servers have more clients connected than 2). 1), in
reality,
more than 6 clients, including clients from other companies, are
connected.
In addition, data acquisition from clients of other companies is not
frequent.
2), only clients created in Milo 0.1.6 are connected.
Sample error logs are as follows. The error log that is output is of
this
type only.
---
2018-02-12 00:03:03,571+JST 重大 org.eclipse.milo.opcua.stack.c
ore.channel.ChunkDecoder
decode - expected sequence number 3693718 but received 3693719
2018-02-12 00:03:03,573+JST 重大 org.eclipse.milo.opcua.stack.c
ore.channel.ChunkDecoder
decode - 4d5347467200000008000000e0250000975c3800a388db0001003a030500
0020000000e5bdbdadf74e1d7c2ba375bd155b4c5cf3b6939ff1478ebdb4
1954cef6f4acee00c49b8349a3d3016e84db0000000000ffffffffa86100
00000000020000001900000006fa51001900000007fa5100
2018-02-12 00:03:03,574+JST 重大 org.eclipse.milo.opcua.stack.s
erver.handlers.UaTcpServerSymmetricHandler lambda$1 - Error decoding
symmetric message: expected sequence number 3693718 but received 3693719
UaException: status=Bad_SecurityChecksFailed, message=expected sequence
number 3693718 but received 3693719
at org.eclipse.milo.opcua.stack.core.channel.ChunkDecoder.decod
e(ChunkDecoder.java:137)
at org.eclipse.milo.opcua.stack.core.channel.ChunkDecoder.decod
eSymmetric(ChunkDecoder.java:80)
at org.eclipse.milo.opcua.stack.server.handlers.UaTcpServerSymm
etricHandler.lambda$1(UaTcpServerSymmetricHandler.java:177)
at org.eclipse.milo.opcua.stack.core.channel.SerializationQueue
.lambda$1(SerializationQueue.java:58)
at org.eclipse.milo.opcua.stack.core.util.ExecutionQueue$PollAn
dExecute.run(ExecutionQueue.java:107)
at java.util.concurrent.Executors$RunnableAdapter.call(
Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPool
Executor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoo
lExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
---
Although the server is running continuously, it is worrisome because the
log level
is ERROR.
Previously, I was explained that this type of error log may be related
to
memory leak.
I do not think there is urgency, but if there is a hint of how to deal
with something,
I am glad that you tell me helpful information. I will refer to it and
consider
future countermeasures.
Regards,
--Shigeru
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--
************************************************************ **********
** Fachhochschule Koeln / Cologne University of Applied Sciences
**
** Saurabh Samber
** E-Mail: saurabh.samber@xxxxxxxx-koeln.de
************************************************************ **********
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--
Jens Reimann
Senior Software Engineer / EMEA ENG Middleware
Werner-von-Siemens-Ring 14
85630 Grasbrunn
Germany
phone: +49 89 2050 71286
____________________________________________________________ _________________
Red Hat GmbH, www.de.redhat.com,
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153243,
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--
************************************************************ **********
** Fachhochschule Koeln / Cologne University of Applied Sciences
**
** Saurabh Samber
** E-Mail: saurabh.samber@xxxxxxxx-koeln.de
************************************************************ **********
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