Windows error 0x80040004, -2147221500

unable to start mysql cluster SQL-node

I want to create my own MySQL cluster for test sake. I have 2 machines, first one contains management node,ndbd node and SQL-node, and second one configured just as ndbd node. I installed a centos(minimal version) and tried to install cluster using MySQL-Cluster-server-gpl-7.5.0-1.el7.x86_64.rpm. When installation finished, I'd started ndb_mgmd, ndbd [...] read more

WithEvents error sinking a COM event that comes from a .NET component

I am attempting to raise an event in .NET and have it picked up through COM by a VBA application. This answer has been quite helpful in getting my events to show up properly in the type library. On the VBA side, everything looks legit. I have an object variable [...] read more

How to check if whole program is flashed on ARM?

I'm using arm-none-eabi-gcc 5.3 to produce binaries for STM32L4. I'm using bootloader to flash program. Problem is I can't be sure if I'm flashing whole file. I don't have any CRC available. Flash starts on 0x80000000 and 0x80040000 (2 banks for bootloader and main program). Currently I assuming If 0x80040004 [...] read more

COMException occurred in IConnectionPoint Unadvise()

I'm developing a program that checks if the Windows Form application is connected to the internet or not. I based my code from the following link: https://www.codeproject.com/Articles/34650/How-to-use-the-Windows-NLM-API-to-get-notified-of I'm getting this System.Runtime.InteropServices.COMException in the Unadvise() method of class IConnectionPoint and I'm not sure as to why. Here is the additional information [...] read more

MySQL Cluster error: 1005: Can't create table 'ndb_schema' (errno: 13)

I'm having troubles with my MySQL Cluster Test-setup: I have two machines running Ubuntu and Docker (using a multi-host network) and each node (ndb_mgm, ndbd and mysqld) runs via Docker. The setup is as follows: Machine 1: * ndb_mgmd * ndbd1 * mysqld1 Machine 2: * ndbd2 * mysqld2 When [...] read more

Error when setting up mysql cluster

I am trying to set up the mysql cluster. But when I try to start the mysqld(API) node, I get this error: 2014-12-02 17:02:37 0 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead. [...] read more

R library not getting loaded when I try this using statConnector in R

I can access the basic function of stat library in R when I connect C# and R through statconnector. But if I load a library(), I am not able to call any of its function. The code I am trying is: rConn.SetSymbol("n1", 20); rConn.Evaluate("library(dtw)"); rConn.Evaluate("x1<-rnorm(n1)"); rConn.Evaluate("x2<-rnorm(n1)"); rConn.Evaluate("Score<-dtw(x1,x2,keep.internals=TRUE)"); The error I [...] read more