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kandi X-RAY | newstream Summary
kandi X-RAY | newstream Summary
Q: Why, it's already available in a browser?. A: I think native dedicated application is always better. It's why Android users have dedicating players and not using just a browser to it.
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QUESTION
I have two grid setup's
Local grid setup (hub and nodes are running in my local machine) and my
local machineconnected tonetwork#1VM grid setup (hub and nodes are running in my virtual machine) and my
virtual machineconnected tonetwork#2
When I execute the scripts I need to pass the IP address as a parameter. Here,
I can run my scripts successfully in local machine(code is available in local machine) by passing the network#1 IP address but if I pass the network#2 IP address (VM IP address) to local machine then I am getting below exception,
org.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are invalid address of the remote server or browser start-up failure.
As per my knowledge, hub and nodes should be connected to same network. Cannot we run the scripts by passing the VM IP address to local machine?
Trace:
...ANSWER
Answered 2021-Jun-15 at 13:57Yes, the exception occurred due to firewall. The ping test is successful from local machine to VM but not from VM to local. I contacted the organization network administrator to confirmed this.
QUESTION
Given a simple Apache Storm Topology that makes use of the Stream API, there are two ways of initializing an Stream:
Version 1 - implicit declaration
...ANSWER
Answered 2021-May-28 at 09:47That's because integerStream.filter(x -> x > 5); returns a new stream that you ignore.
This works:
QUESTION
I'm trying to send an image file from a node.js server across a TCP/IP connection. I converted the image file to a hexadecimal string using fs.createReadStream and received the hex string as expected on the client side. Now I need to figure out how to reconstruct the image on the client side using the hex string.
Node.js code:
...ANSWER
Answered 2021-May-21 at 19:55Instead of calling fprintf() you need to call fwrite().
You receive the binary bytes with esp_http_client_read_response(). Store the returned length.
Then use this function to create the file:
QUESTION
I am getting the below error in NIFI when I call an API which is hosted in another server. (source and destination are Linux servers)
I need to add the server certificates in my current server to resolve this issue.
Can anyone provide the step by step commands that I need to execute to resolve this issue?
Nifi Log:
...ANSWER
Answered 2021-May-12 at 16:48The InvokeHTTP in NiFi is a client of your API. This means that the InvokeHTTP needs to be able to trust your remote server to ensure it's not connecting to a malicious service. To do this, we need to add the Certificate Authority/Root Authority of the remote service to InvokeHTTP's truststore. The CA required will be shown in the 'Issuer' fields of the service's server certificate.
To get the CA, you can follow this blog: https://daniel.haxx.se/blog/2018/11/07/get-the-ca-cert-for-curl/, and retrieve the CA into a pem file with:
QUESTION
Hi I am facing a problem related to pyspark, I use df.show() it still give me a result but when I use some function like count(), groupby() v..v it show me error, I think the reason is that 'df' is too large.
Please help me solve it. Thanks!
...ANSWER
Answered 2021-May-17 at 23:57You're using a wildcard in your path '/mnt/raw_data/play/log_stream/playstats_v100/topic=play_map_play_vod/date=2021-01*', so probably one of them is corrupted. show doesn't throw any error that's mean the path of the records is shown basically correct, but not all of them. You can debug which one is causing the error by checking paths one by one (or few at the time)
QUESTION
Good day
I am writing a Glue job on AWS to transform data. After doing a join on two sets of data (resulting in a dataframe of around 100MB in size), I get a Nullpointer exception when retrieving the count on the dataframe. What makes this bug difficult to trace is that it only happens sporadically - occasionally it succeeds.
The error is:
...ANSWER
Answered 2021-May-14 at 11:28In case someone also runs into this. It can happen the moment the data gets "collected". So on writing out a partition of data, getting counts, etc.
The solution is to increase the maximum number of workers. Changing ours from 4 to 25 solved the issue.
QUESTION
I'm trying to send an image from a node.js server to ESP32 chip using WIFI and ESP-IDF. I believe this transfer happens over a TCP/IP connection. I'm able to send a regular text data using a http get request or the http_perform_as_stream_reader function shown below. But when it comes to transferring an image from the node.js server, I'm unable to do so. I seem to be receiving garbage on the client side. The ultimate goal is to save the image into a spiffs file on ESP32. Here's my code:
Server side:
...ANSWER
Answered 2021-May-11 at 05:08Application should not assume that esp_http_client_read reads same number of bytes specified in the length argument. Instead, application should check the return value of this API which indicates number of bytes read by corresponding call. If the return value is zero, it indicates that complete data is read.
To work correctly, application should call esp_http_client_read in a while loop with a check for return value of esp_http_client_read.
You can also use esp_http_client_read_response, which is a helper API for esp_http_client_read to internally handle the while loop and read complete data in one go.
Please refer http_native_request example which uses esp_http_client_read_response() API.
QUESTION
For my app I need values which are parsed by jSoup from a website and then returned to the user using a notification, these values change ~ every minute, so to be up-todate with the values I set up a task using a handler, this works good when the app is in foreground, but as soon as the user goes to the homescreen the app will return multiple exceptions like e.g. java.net.UnknownHostException or java.net.SocketTimeoutException, in the code this happens when jSoup is connecting to the specified site, I already tried using Services and AsyncTasks instead of threads, but it was always the exact same problem, I also searched for people with similar experiences, but I guess my issue is quite specific.
This is the code for the handler:
...ANSWER
Answered 2021-Apr-17 at 16:41The problem was energy saving mode, if it is turned on the phone won't do requests in background / idle mode, no matter the wakelock, I solved my problem by adding a permission, so the app can request data even when the phone is in energy saving standby.
QUESTION
I am trying to make a simple android app that makes a request to google, the expected behavior that my app should make a connection to google and then stop, what I got this error
...ANSWER
Answered 2021-Apr-09 at 01:34According to your error log, your problem is you're attempting to connect to the internet on the main thread. Android does not allow you to setup an internet connection on the main thread because that would freeze up everything else while it makes the connection. You need to connect on a different thread.
EDIT: In light of AsyncTask being depreciated, the recommended alternatives appear to be using the interfaces contained in java.util.concurrent to make threads and/or threadpools or the coroutine libraries for Kotlin. Be sure to check the documentation and make a thread that establishes the connection in the background.
QUESTION
so I'll try to explain my problem as well as I can. Currently I'm working on a quite decent scale program. However I've never worked with this many threads, as said 350+. It's currently giving me an out of memory error, however I already tried various options:
- adding the -Xss parameter
- adding other parameters I could find on this website
- further I've tried to edit the stacksize and user limits
The errors I get for an out of memory leak problem are put down below.
...ANSWER
Answered 2021-Mar-31 at 09:55You can try to configure JDA and change defaults to reduce the memory footprint. Make sure you also use the latest version of JDA (which is currently 4.2.0_252).
Read the FAQ: How can I reduce the memory footprint of my bot?
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