macos – Issues with running spark-submit on a local machine with Apache Spark (stand alone, single node)

I’ve installed apache spark on my mac with 16 GB of RAM to test my pyspark code locally with small data sets before I test it on a real cluster. I’ve installed apache spark via brew and use spark-submit to run my pyspark code locally. It works, except sometimes I get a strange generic error … Read more

c++ – Data race reported in Boost lockfree queue by Tsan

I’m running the MPMC example given in boost lockfree queue documentation with thread sanitizer and to my surprise this basic example contains data races as per TSan. Any idea what might be wrong? OS: Red Hat Enterprise Linux Server release 7.7 Compiler: g++ (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2) CPU Architecture: x86_64 Output of Tsan … Read more

javascript – GSAP and scrollmagic how to reduce the space between one end and the next start

I did a codepen example of the scroll animation I’m doing on a website. Everything is working as intended: when the first div of text and image goes to opacity 0, the next one comes to opacity 1 in the same place as the last one. But what I need to fix is ‚Äč‚Äčthat it’s … Read more

java – My ArrayList name as well as my items name are giving me errors

I’m writing an interactive Javafx/GUI program (a simple lending library) and I have multiple errors but it’s for the same two names: MediaItem and items. I know that once those are fixed the code should work. Here’s the interactive part of the code: import java.util.ArrayList; import java.util.Iterator; import java.util.Scanner; import; import; public class … Read more

A document path must be a non-empty string, Flutter – Firebase error?

I have some mistakes with flutter and firebase, if someone can help would be great here is my auth controller class AuthController extends GetxController { final FirebaseAuth auth = FirebaseAuth.instance; final Rxn<User> _firebaseUser = Rxn<User>(); Rx<XFile>? _pickedImage; XFile? get profilePhoto => _pickedImage?.value; // final user = FirebaseAuth.instance.currentUser.obs; Rxn<User> get user => _firebaseUser; // final user … Read more

solr nested docs: Unable to index docs with children

I am trying to index below nested JSON docs using solrj client. [ { “id_id_s”: “P22!prod”, “name_lowercase_s”: “Mont Blanc Fountain Pen”, “description_text_en_s”: “A Premium Writing Instrument …”, “skus”: [ { “id_id_s”: “P22!S22”, “color_lowercase_s”: “RED”, “price_int_s”: 89, “manuals”: [ { “id_id_s”: “P22!D42”, “name_text_en_s”: “Red Mont Blanc Brochure”, “pages_int_s”: 1, “content_text_en_s”: “…” } ] }, { “id_id_s”: … Read more

Stripe to MemberPress Webhook Error: Invalid encoding: ISO-8859-1, 500 Error

Payments are processing in Stripe, but the webhook back to MemberPress that lets it know that the renewed subscription are failing. Webhooks look to be identical, and not in Test mode. Just not getting a lot of info back on the error. Should I set up listeners? Any guidance would be appreciated. { “id”: “evt_1Kvpj1KsZRmhnThq31q4z2z5”, … Read more

python – Change column type in pandas

You have four main options for converting types in pandas: to_numeric() – provides functionality to safely convert non-numeric types (eg strings) to a suitable numeric type. (See also to_datetime() and to_timedelta().) astype() – convert (almost) any type to (almost) any other type (even if it’s not necessarily sensible to do so). Also allows you to … Read more