Troubleshooting artifact set download failure with an ioexception in udeploy
How to Fix "Artifact Set Download Failed with an IOException UDeploy" Error
If you are using IBM UrbanCode Deploy (UDeploy) to automate and orchestrate the deployment of your applications, you may encounter the error "artifact set download failed with an ioexception" when downloading cached codestation large artifacts on a relay. This error can cause your deployment to fail and disrupt your continuous delivery process. In this article, we will explain what UDeploy is, what an IOException is, and how to fix this error.
artifact set download failed with an ioexception udeploy
What is UDeploy and How Does It Work?
UDeploy is a GUI-based deployment automation tool that provides you with the tools you need to orchestrate and automate the installation and deployment of your applications, middleware configuration, and database changes into development, test, and production environments. It supports local, dedicated, or shared cloud environments, and accelerates time to market and reduces cost by shrinking manual efforts from days to minutes with automation, while reducing risk by cutting deployment errors by up to 90 percent.
UDeploy Features and Benefits
Some of the key features and benefits of UDeploy are:
Multi-tier application models: You can model your applications as a logical group of components that are deployed together. For example, a three-tier application with database, app, and content components, or a mobile application with the actual mobile application and back-end web services.
Easy process designer: You can define your deployment processes in the browser using a simple, drag-and-drop process designer. Component processes are made up of automation steps provided by integration plugins.
Deploy to public, private, and hybrid cloud: You can model cloud environments and how your applications are deployed to those environments in a simple graphical editor. You connect to clouds, model the virtual images in the environment, and add your application components to those images.
Track what is where: Inventory: The inventory system tracks the desired state of each environment, as well as what has been successfully deployed and provides graphical alerts when an environment is out of compliance with that desired state.
Scalable distributed automation: UDeploy is built to support mission-critical deployments to thousands of servers in numerous data centers. Master server clustering support provides high availability and horizontal scalability of the deployment automation tool.
Quality gates and approvals: You can enforce quality standards and compliance policies by setting up environment quality gates and approval processes that ensure that only the right stuff goes out at the right time.
Integrations replace custom scripting: UDeploy provides tested integrations with dozens of tools to make the deployment process easier to design and less risky.
UDeploy Architecture and Components
The basic architecture of UDeploy consists of four main components:
The server: The server is the central component that manages all the configuration data, security, inventory information, component versions, applications, processes, resources, and user interfaces.
The agent: The agent is a lightweight process that runs on each target system (physical or virtual) where you want to deploy something. The agent communicates with the server through HTTP or HTTPS protocols and executes tasks on behalf of the server.
The relay: The relay is an optional component that acts as a proxy between the server and the agents. The relay can improve performance and security by caching artifacts, reducing network traffic, and enabling firewall traversal.
The plug-in: The plug-in is a collection of automation steps that provide integration with various tools and technologies. UDeploy provides many plug-ins out of the box, such as IBM WebSphere Application Server, Oracle Database, Apache Tomcat, etc. You can also create your own custom plug-ins using Java or Groovy.
The following diagram shows a high-level overview of the UDeploy architecture:
What is an IOException and What What is an IOException and What Causes It?
An IOException is a type of exception that occurs when an input or output operation fails or is interrupted. An exception is an event that disrupts the normal flow of a program and indicates that something went wrong. An IOException can be thrown by various classes in the java.io package, which provide methods for reading and writing data from different sources, such as files, streams, sockets, etc. An IOException can have different causes, such as:
How to fix blob not found for hash SHA-256 error in udeploy
IBM UrbanCode Deploy fixlist for version cleanup issues
Disable caching in agent relay to avoid download artifacts failure
Codestation.useProxy property for VFS plugin in udeploy
Download artifacts step sync mode options in udeploy
IBM Security Vulnerability Management for UrbanCode Deploy
UCD server logs flooded by tomcat NPE errors
Component property interpolation bug in UrbanCode Deploy
Intermittent java.lang.IllegalStateException: session/entityManager is closed errors when running processes in udeploy
UCR integration fails with error resolving version selector in udeploy
Re-importing an application template received from another UCD host fails with a notification scheme named XX already exists
500 error on plugin usage page in UrbanCode Deploy
The UI is slow to load application process requests in udeploy
Deployments fail with error 'failed to lazily initialize' in udeploy
If version statuses have double quotes in the description, environment gates are not getting loaded for application in udeploy
Archived versions can be selected for deployment in udeploy
Deployment screen with extra field when application property fields are set to required in process step in udeploy
Korea Superconducting Tokamak Advanced Research experiment Korea Institute of Fusion Energy
Agents are showing the wrong vendor's name in UrbanCode Deploy
Fix fixEmptyRequireApprovals.java in the 7.2.3 upgrade of udeploy
Downloading file error trying to download files: blob not found for hash SHA-256 in udeploy
Attempts to run an application that contains download artifacts step result in blob not found for hash SHA-xxxxxxxxxxxxx in udeploy
Download artifacts fails when artifact set is very large and agent relay is used in udeploy
How to import missing files again as new component versions and use that for deployments in udeploy
How to use VFS plugin version 24 or greater and set the property codestation.useProxy=true in the agent installed.properties file and restart it in udeploy
How to disable caching in the agent relay in UCD 220.127.116.11 or greater to avoid download artifacts failure
How to set sync mode to none and clear any include or exclude filters in download artifact step in udeploy
How to resolve blob not found for hash SHA error when downloading cached codestation large artifacts on a relay in udeploy
How to check IBM UrbanCode Deploy fix pack for version cleanup issues
How to apply IBM Security Vulnerability Management for UrbanCode Deploy
How to troubleshoot tomcat NPE errors in UCD server logs
How to fix component property interpolation bug in UrbanCode Deploy
How to prevent java.lang.IllegalStateException: session/entityManager is closed errors when running processes in udeploy
How to fix UCR integration error resolving version selector in udeploy
How to re-import an application template from another UCD host without notification scheme conflict
How to resolve 500 error on plugin usage page in UrbanCode Deploy
How to improve UI performance for loading application process requests in udeploy
How to avoid deployments failure with error 'failed to lazily initialize' in udeploy
How to remove double quotes from version statuses description to load environment gates for application in udeploy
How to prevent archived versions from being selected for deployment in udeploy
How to remove extra field from deployment screen when application property fields are set to required in process step in udeploy
What is Korea Superconducting Tokamak Advanced Research experiment Korea Institute of Fusion Energy and how it relates to UrbanCode Deploy
Why agents are showing the wrong vendor's name in UrbanCode Deploy and how to fix it
What is fixEmptyRequireApprovals.java and why it needs to be fixed in the 7.2.3 upgrade of udeploy
What causes downloading file error trying to download files: blob not found for hash SHA-256 in udeploy and how to troubleshoot it
What are the steps to run an application that contains download artifacts step without getting blob not found for hash SHA error in udeploy
What are the factors that affect download artifacts failure when artifact set is very large and agent relay is used in udeploy
What are the best practices for importing missing files again as new component versions and using them for deployments in udeploy
A file or directory does not exist or cannot be accessed.
A network connection is broken or timed out.
A file is corrupted or has an invalid format.
A permission or security issue prevents access to a resource.
A device is full or unavailable.
An end of file or stream is reached unexpectedly.
An IOException usually contains a message that describes the specific problem and a stack trace that show