


How to solve the problem that Flink cannot find Python task script when submitting PyFlink job to Yarn Application?
Apr 19, 2025 pm 05:21 PMSolution to Python scripts not found when Flink submits PyFlink job to Yarn
When submitting PyFlink jobs to Yarn using Flink, if you encounter an error in which the Python script cannot be found, it is usually caused by a Python script path configuration error or a Python environment setting problem. This article analyzes and resolves this issue.
You submitted a PyFlink job using the following command:
./flink run-application -t yarn-application \ -dyarn.application.name=flinkcdctestpython\ -dyarn.provided.lib.dirs="hdfs://nameservice1/pyflink/flink-dist-181" \ -pyarch hdfs://nameservice1/pyflink/pyflink181.zip \ -pyclientexec pyflink181.zip/pyflink181/bin/python \ -pyexec pyflink181.zip/pyflink181/bin/python \ -py hdfs://nameservice1/pyflink/wc2.py
The error message is as follows:
<code>2024-05-24 16:38:02,030 info org.apache.flink.client.python.pythondriver [] - pyflink181.zip/pyflink181/bin/python: can't open file 'hdfs://nameservice1/pyflink/wc2.py': [errno 2] no such file or directory</code>
This error indicates that Flink cannot find the specified Python script wc2.py
However, the HDFS configuration is normal when submitting the Java job, which means there is no problem with the HDFS configuration itself.
The problems may lie in the following aspects:
-
Python script path: double check whether the
hdfs://nameservice1/pyflink/wc2.py
path is correct and whether thewc2.py
file exists under this path. Verify using HDFS command:hdfs dfs -ls hdfs://nameservice1/pyflink/wc2.py
-
Python environment configuration:
-pyclientexec
and-pyexec
parameters specify the Python execution environment. Make sure the Python environment inpyflink181.zip
is configured correctly and has access to HDFS. It is recommended to point the parameters directly to the Python environment path on HDFS:-pyclientexec hdfs://nameservice1/pyflink/pyflink181.zip/pyflink181/bin/python -pyexec hdfs://nameservice1/pyflink/pyflink181.zip/pyflink181/bin/python
-
Permissions Issue: Make sure the Flink job has permission to access Python script files on HDFS. Check file permissions:
hdfs dfs -ls -h hdfs://nameservice1/pyflink/wc2.py
Flink and PyFlink version compatibility: Confirm the Flink version is compatible with the PyFlink version. Version mismatch can cause problems.
Through the above steps, you should be able to find and resolve the issue that Flink cannot find the Python script when submitting PyFlink jobs. If the problem persists, check Flink and PyFlink's log files for more clues.
The above is the detailed content of How to solve the problem that Flink cannot find Python task script when submitting PyFlink job to Yarn Application?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

To realize text error correction and syntax optimization with AI, you need to follow the following steps: 1. Select a suitable AI model or API, such as Baidu, Tencent API or open source NLP library; 2. Call the API through PHP's curl or Guzzle and process the return results; 3. Display error correction information in the application and allow users to choose whether to adopt it; 4. Use php-l and PHP_CodeSniffer for syntax detection and code optimization; 5. Continuously collect feedback and update the model or rules to improve the effect. When choosing AIAPI, focus on evaluating accuracy, response speed, price and support for PHP. Code optimization should follow PSR specifications, use cache reasonably, avoid circular queries, review code regularly, and use X

User voice input is captured and sent to the PHP backend through the MediaRecorder API of the front-end JavaScript; 2. PHP saves the audio as a temporary file and calls STTAPI (such as Google or Baidu voice recognition) to convert it into text; 3. PHP sends the text to an AI service (such as OpenAIGPT) to obtain intelligent reply; 4. PHP then calls TTSAPI (such as Baidu or Google voice synthesis) to convert the reply to a voice file; 5. PHP streams the voice file back to the front-end to play, completing interaction. The entire process is dominated by PHP to ensure seamless connection between all links.

The core role of Homebrew in the construction of Mac environment is to simplify software installation and management. 1. Homebrew automatically handles dependencies and encapsulates complex compilation and installation processes into simple commands; 2. Provides a unified software package ecosystem to ensure the standardization of software installation location and configuration; 3. Integrates service management functions, and can easily start and stop services through brewservices; 4. Convenient software upgrade and maintenance, and improves system security and functionality.

When choosing a suitable PHP framework, you need to consider comprehensively according to project needs: Laravel is suitable for rapid development and provides EloquentORM and Blade template engines, which are convenient for database operation and dynamic form rendering; Symfony is more flexible and suitable for complex systems; CodeIgniter is lightweight and suitable for simple applications with high performance requirements. 2. To ensure the accuracy of AI models, we need to start with high-quality data training, reasonable selection of evaluation indicators (such as accuracy, recall, F1 value), regular performance evaluation and model tuning, and ensure code quality through unit testing and integration testing, while continuously monitoring the input data to prevent data drift. 3. Many measures are required to protect user privacy: encrypt and store sensitive data (such as AES

Use Seaborn's jointplot to quickly visualize the relationship and distribution between two variables; 2. The basic scatter plot is implemented by sns.jointplot(data=tips,x="total_bill",y="tip",kind="scatter"), the center is a scatter plot, and the histogram is displayed on the upper and lower and right sides; 3. Add regression lines and density information to a kind="reg", and combine marginal_kws to set the edge plot style; 4. When the data volume is large, it is recommended to use "hex"

The core idea of PHP combining AI for video content analysis is to let PHP serve as the backend "glue", first upload video to cloud storage, and then call AI services (such as Google CloudVideoAI, etc.) for asynchronous analysis; 2. PHP parses the JSON results, extract people, objects, scenes, voice and other information to generate intelligent tags and store them in the database; 3. The advantage is to use PHP's mature web ecosystem to quickly integrate AI capabilities, which is suitable for projects with existing PHP systems to efficiently implement; 4. Common challenges include large file processing (directly transmitted to cloud storage with pre-signed URLs), asynchronous tasks (introducing message queues), cost control (on-demand analysis, budget monitoring) and result optimization (label standardization); 5. Smart tags significantly improve visual

The core of PHP's development of AI text summary is to call external AI service APIs (such as OpenAI, HuggingFace) as a coordinator to realize text preprocessing, API requests, response analysis and result display; 2. The limitation is that the computing performance is weak and the AI ecosystem is weak. The response strategy is to leverage APIs, service decoupling and asynchronous processing; 3. Model selection needs to weigh summary quality, cost, delay, concurrency, data privacy, and abstract models such as GPT or BART/T5 are recommended; 4. Performance optimization includes cache, asynchronous queues, batch processing and nearby area selection. Error processing needs to cover current limit retry, network timeout, key security, input verification and logging to ensure the stable and efficient operation of the system.

To integrate AI sentiment computing technology into PHP applications, the core is to use cloud services AIAPI (such as Google, AWS, and Azure) for sentiment analysis, send text through HTTP requests and parse returned JSON results, and store emotional data into the database, thereby realizing automated processing and data insights of user feedback. The specific steps include: 1. Select a suitable AI sentiment analysis API, considering accuracy, cost, language support and integration complexity; 2. Use Guzzle or curl to send requests, store sentiment scores, labels, and intensity information; 3. Build a visual dashboard to support priority sorting, trend analysis, product iteration direction and user segmentation; 4. Respond to technical challenges, such as API call restrictions and numbers
