Ahmed Aboulnaga - Chronicles of Technology (Page 2)

Ahmed Aboulnaga

Resolving multiple GCC errors installing Python package 'langchain'

Resolving multiple GCC errors installing Python package 'langchain'

I tried installing the Python package langchain on an OCI Linux 8 instance using this command: pip3 install langchain==0.0.27 Error #1 I received the following GCC error where it could not find cc1plus1: gcc -pthread -Wno-unused-result -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -g -pipe -Wall -Werror=

Installing the Functionize CLI

Installing the Functionize CLI

This post describes how to install and setup the Functionize CLI (i.e., fze) and work through some sample usages. Installation 1. Download the Functionize CLI from here 2. Start the installer unzip CLI.zip cd CLI ./install.sh 3. You will be prompted to get the Client ID and

Reconfigure Tomcat to HTTPS 443

Reconfigure Tomcat to HTTPS 443

There are a lot of notes, blogs, and references on how to reconfigure Tomcat from the default HTTP 8080 port to HTTPS 443. Granted, this is for a sandbox installation. The many responses on Stack Overflow were partial and confusing, so here we are. This blog post describes how to

Oracle Support Chat "powered by OCI Generative AI" is garbage

Oracle Support Chat "powered by OCI Generative AI" is garbage

When I log in to the OCI console, the region on the top bar is always defaulting to "US West (Phoenix)". We have no resources in that region. In fact, as shown in the screenshot below, when I click on "Manage region", it is showing US

Creating your first Functionize functional test

Creating your first Functionize functional test

This post describes how to create a simple test case in Functionize for first-timers. These instructions are is based on Functionize V.5.3.24.3. Install the Functionize Extension on Chrome Functionize works best on Chrome because the Functionize Architect (or Architect for short) is the recorder tool and

Installing Jenkins (zip version)

Installing Jenkins (zip version)

These instructions are quick and easy to follow steps for installing Jenkins (the zip version). It requires Tomcat, which in turn requires JDK. Instructions here are specific to Linux, but with simple adjustments can apply to Microsoft Windows too. The software versions here are based on the latest versions as

Unable to add statement to 'Tenant Admin Policy' in OCI

Unable to add statement to 'Tenant Admin Policy' in OCI

I've been with OCI over 10 years, from the early days of their Gen1 cloud. So I've seen a lot in the journey of changes. One area of evolution is within their IdAM. Problem When trying to add a new statement to the default Tenant Admin

Cloud resources and services no longer showing up on OCI console

Cloud resources and services no longer showing up on OCI console

Our OCI services have been working fine for years. They are used to host a few blog platforms, websites, development environments, and other odd services. A few months ago, none of my administrator accounts could see any service or resource in the OCI console/dashboard. This completely baffled me. The

Some common solutions to Terratest Go test errors

Some common solutions to Terratest Go test errors

This post provides a few resolutions to some Terratest errors encountered. Problem: You get a go: cannot find main module error as shown when running a go test: ahmed@devhost:/u01/terraform/test> go test -v -timeout 1m -run TestVM go: cannot find main module, but found .git/config

Eclipse pom.xml error "Downloading external resources is disabled"

I am using the most recent Eclipse IDE build id 20231201-2043 and created a barebones Maven project. However, out-of-the-box there is an error in the pom.xml file. Problem: Here in the pom.xml file you can see an error: When hovering over the first error icon, the error is:

HTTP 400 Bad Request when calling OCI REST due to "Unable to parse message body"

I was able to successfully use the instructions in a blog post titled Oracle Cloud Infrastructure (OCI) REST call walkthrough with curl written by the Oracle A-Team to call an OCI REST service to create an Autonomous Database without using oci-curl. I was able to use the bash script (no

Setting up Selenium/Java to test Multi-Factor Authentication (MFA)

Setting up Selenium/Java to test Multi-Factor Authentication (MFA)

This post describes how to set up Selenium and run a test case to authenticate with multi-factor authentication (MFA). By following these instructions, you can use Selenium and Java to authenticate to Login.gov and enter a one-time code using your Java code to simulate an authenticator app. 1. Install

Putty error "PuTTY key format too new"

I recently received a "PuTTY key format too new" error when trying to SSH into one of my cloud VMs. Simply download the latest version of Putty from https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html and you should be good to go.

My Git Cheat Sheet

# Clone from remote repo ssh-keygen -t rsa # Then copy this SSH key to GitLab git clone git@scm.revelationtech.com:soa/oracle-soa.git # Identify yourself as author git config --global user.name "ahmed" git config --global user.email ahmed@revelationtech.com git config --global --list # Statuses git status

Applying Coherence patch 35122398 to JDeveloper 12c

When I was issued a client laptop, an Oracle Coherence vulnerability was reported as part of the local Oracle JDeveloper 12.2.1.4 installation on Windows. This blog walks through the patching process. 1. Navigate to Oracle Support and download the Oracle Coherence patch number 35122398 and the latest

WSO2 API Manager

Getting "Cannot remove the API" in WSO2 API Manager

I tried to delete an API in the WSO2 API Manager Publisher at https://hostname:9443/publisher/ but received the error Cannot remove the API as active subscriptions exist (see screenshot below). To delete this API, navigate to the WSO2 API Manager Developer Portal at https://hostname:9443/devportal/. Click

Resolving OCI Management Agent installation error

Problem Getting "Error: Transaction failed" when installing the Oracle Management Agent which is downloaded from the OCI console. These are the steps I performed: 1. Navigate to "Observability & Management", then click on "Management Agent" 2. Click on "Download and Keys" 3.

Using the SQL*Plus Instant Client

Now that you have the Oracle SQL*Plus Instant Client installed, here's the quickest way to start using it. (Installation instructions on this blog post.) # Set the environment variables to your local installation export SQLPLUS_HOME=/u01/sqlplus/instantclient_21_5 export TNS_ADMIN=${SQLPLUS_HOME} export LD_

Cheat sheet for XSL transformation

I'm really publishing this blog post for myself as a future reference. :) This .xsl file (aka XSL transformation file) contains perhaps 90% of everything I generally use in my Oracle SOA development projects. Here is the file in its entirety (I'll break it down further below)

Oracle Fusion Middleware

Not getting the "Sign In" button on the Oracle Fusion Middleware EM Console? Try this

Quite a few times I've opened up the Oracle Enterprise Manager Fusion Middleware Control 12c console and the prompt for the user name and password is right there, but not the Sign In button (see screenshot). Where's the "Sign In" button?!The solution to

EMAIL activity in Oracle BPEL does not support single quotes

During compilation of an Oracle SOA BPEL project, I ran into an error related to the EMAIL activity. Problem: I received an error invalid syntax when building the project, but the error message did not tell me what the issue exactly was: Error(782): The expression "concat(string('

Testing an XSL transformation mapping in Oracle JDeveloper 12c

So you developed a somewhat complicated XSL transformation in your Oracle SOA/BPEL project. But how do you go about testing this? Traditionally, we deploy the project to the SOA server, conduct a test of the end-to-end process, see what failed, and go back and re-edit the project. Then repeat.

Getting JPS-01050 when starting WebLogic (cannot open wallet)

When starting up WebLogic after a network outage, we received the following exception: oracle.security.jps.JpsException: JPS-01050: Opening of wallet based credential store failed. Reason java.io.IOException at oracle.security.jps.internal.config.OpssCommonStartup.preStart(OpssCommonStartup.java:423) at oracle.security.jps.JpsStartup.preStart(JpsStartup.java:389) at

Creating a test file to test I/O performance

For the purpose of testing the performance of a cloud storage volume, I recently came across the xfs_mkfile command. This command creates a file called 30GigFile.out that is 30 GB in size: xfs_mkfile 30720m 30GigFile.out What I do is simply test the timing of how long

Quickly installing APEX 22 and ORDS 22

Here are my quick notes on installing Oracle APEX Release 22.1 and Oracle REST Data Services 22.2. Extract Software 1. Set path. Use this path when installing APEX, ORDS, and Tomcat. Customize as necessary. export JAVA_HOME=/u01/oracle/jdk-18.0.1 export JAVA_OPTS="-Dconfig.url=