Docker: Fix video recording in Node consume high CPU

[VietND96]

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Description

Fixes #2788

Motivation and Context

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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PR Type

Bug fix, Enhancement

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Description

• Optimize ffmpeg video recording to reduce Node CPU usage

  • Adjust ffmpeg parameters for efficiency and configurability
  • Lower default ffmpeg thread count and tune encoding settings

• Improve video recording polling and logging logic

  • Increase poll interval and add clearer waiting log messages

• Update test Docker Compose files for video recording

  • Enable video recording in Node services by default
  • Increase Node replicas for Chrome and Firefox in get-started config

• Set browser download capability to false in tests

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Changes walkthrough 📝

	Relevant files
Enhancement	video.sh Optimize ffmpeg usage and polling for video recording        Video/video.sh Refactored ffmpeg command to use more efficient parameters and environment variables. Reduced default ffmpeg thread count and added encoding optimizations. Increased polling interval for video recording checks. Improved logging and waiting logic when no session is present. +14/-5    get_started.py Disable browser downloads in test setup                                    tests/get_started.py Set browser download capability (enable_downloads) to False for all browsers. +1/-1
Configuration changes	docker-compose-v3-dev-arm64.yml Enable video recording in dev ARM64 Docker Compose              tests/docker-compose-v3-dev-arm64.yml Enabled video recording (SE_RECORD_VIDEO=true) for Chrome and Firefox Node services. +2/-0      docker-compose-v3-get-started-arm64.yml Scale up Node replicas and clean up ports in get-started config tests/docker-compose-v3-get-started-arm64.yml Increased Chrome and Firefox Node replicas from 1 to 3. Removed VNC port mappings for both browsers. +2/-6

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Error Handling The ffmpeg command at line 268-272 is missing error handling. If ffmpeg fails to start, the FFMPEG_PID variable will be empty but the code assumes it's valid. This could lead to unexpected behavior. ffmpeg -hide_banner -loglevel warning -threads ${SE_FFMPEG_THREADS:-1} -thread_queue_size 512 \ -probesize 32M -analyzeduration 0 -y -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} \ -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET:-"-preset veryfast"} \ -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \ -pix_fmt yuv420p -movflags +faststart "$video_file" & Random Sleep The random sleep duration (RANDOM % 16 + poll_interval) might cause unpredictable behavior. Consider using a fixed or configurable value instead of a random one for more consistent performance. sleep $((RANDOM % 16 + poll_interval)) fi

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CI Feedback 🧐

(Feedback updated until commit 047d18c)

A test triggered by this PR failed. Here is an AI-generated analysis of the failure:

Action: Test Selenium Grid on Docker / Test Docker Selenium (test_video, false, true, false, ubuntu-24.04)

Failed stage: Format and lint scripts [❌]

Failed test name: format_shell_scripts

Failure summary: The action failed because shell scripts in the repository are not properly formatted. The error occurred during the execution of the format_shell_scripts target in the Makefile (line 77). The system detected formatting issues in the Video/video.sh file and instructed to run 'make format_shell_scripts' to fix the formatting.

Relevant error logs: 1: ##[group]Operating System 2: Ubuntu ... 148: �[36;1m�[0m 149: �[36;1m sudo rm -rf /opt/ghc || true�[0m 150: �[36;1m sudo rm -rf /usr/local/.ghcup || true�[0m 151: �[36;1m �[0m 152: �[36;1m AFTER=$(getAvailableSpace)�[0m 153: �[36;1m SAVED=$((AFTER-BEFORE))�[0m 154: �[36;1m printSavedSpace $SAVED "Haskell runtime"�[0m 155: �[36;1mfi�[0m 156: �[36;1m�[0m 157: �[36;1m# Option: Remove large packages�[0m 158: �[36;1m# REF: https://github.com/apache/flink/blob/master/tools/azure-pipelines/free_disk_space.sh�[0m 159: �[36;1m�[0m 160: �[36;1mif [[ false == 'true' ]]; then�[0m 161: �[36;1m BEFORE=$(getAvailableSpace)�[0m 162: �[36;1m �[0m 163: �[36;1m sudo apt-get remove -y '^aspnetcore-.*' || echo "::warning::The command [sudo apt-get remove -y '^aspnetcore-.*'] failed to complete successfully. Proceeding..."�[0m 164: �[36;1m sudo apt-get remove -y '^dotnet-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^dotnet-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 165: �[36;1m sudo apt-get remove -y '^llvm-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^llvm-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 166: �[36;1m sudo apt-get remove -y 'php.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y 'php.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 167: �[36;1m sudo apt-get remove -y '^mongodb-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^mongodb-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 168: �[36;1m sudo apt-get remove -y '^mysql-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^mysql-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 169: �[36;1m sudo apt-get remove -y azure-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri --fix-missing || echo "::warning::The command [sudo apt-get remove -y azure-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri --fix-missing] failed to complete successfully. Proceeding..."�[0m 170: �[36;1m sudo apt-get remove -y google-cloud-sdk --fix-missing || echo "::debug::The command [sudo apt-get remove -y google-cloud-sdk --fix-missing] failed to complete successfully. Proceeding..."�[0m 171: �[36;1m sudo apt-get remove -y google-cloud-cli --fix-missing || echo "::debug::The command [sudo apt-get remove -y google-cloud-cli --fix-missing] failed to complete successfully. Proceeding..."�[0m 172: �[36;1m sudo apt-get autoremove -y || echo "::warning::The command [sudo apt-get autoremove -y] failed to complete successfully. Proceeding..."�[0m 173: �[36;1m sudo apt-get clean || echo "::warning::The command [sudo apt-get clean] failed to complete successfully. Proceeding..."�[0m 174: �[36;1m�[0m ... 489: ffmpeg -hide_banner -loglevel warning -threads ${SE_FFMPEG_THREADS:-1} -thread_queue_size 512 \ 490: - -probesize 32M -analyzeduration 0 -y -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} \ 491: - -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET:-"-preset veryfast"} \ 492: - -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \ 493: - -pix_fmt yuv420p -movflags +faststart "$video_file" & 494: + -probesize 32M -analyzeduration 0 -y -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} \ 495: + -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET:-"-preset veryfast"} \ 496: + -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \ 497: + -pix_fmt yuv420p -movflags +faststart "$video_file" & 498: FFMPEG_PID=$! 499: if ps -p $FFMPEG_PID >/dev/null; then 500: recording_started="true" 501: Video/video.sh | 16 ++++++++-------- 502: 1 file changed, 8 insertions(+), 8 deletions(-) 503: Some shell scripts are not formatted. Please run 'make format_shell_scripts' to format and update them. 504: make: *** [Makefile:77: format_shell_scripts] Error 1 505: ##[error]Process completed with exit code 2. 506: ##[group]Run docker system prune -af

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CI Feedback 🧐

A test triggered by this PR failed. Here is an AI-generated analysis of the failure:

Action: Test Selenium Grid on Docker / Test Docker Selenium (test_video_standalone, false, true, false, ubuntu-24.04)

Failed stage: Format and lint scripts [❌]

Failed test name: format_shell_scripts

Failure summary: The action failed because shell scripts in the repository are not properly formatted. The error occurred during the execution of the make format_shell_scripts target (Makefile:77). Specifically, the Video/video.sh file has formatting issues with 8 insertions and 8 deletions needed. The action is expecting all shell scripts to be formatted according to the project's standards.

Relevant error logs: 1: ##[group]Operating System 2: Ubuntu ... 148: �[36;1m�[0m 149: �[36;1m sudo rm -rf /opt/ghc || true�[0m 150: �[36;1m sudo rm -rf /usr/local/.ghcup || true�[0m 151: �[36;1m �[0m 152: �[36;1m AFTER=$(getAvailableSpace)�[0m 153: �[36;1m SAVED=$((AFTER-BEFORE))�[0m 154: �[36;1m printSavedSpace $SAVED "Haskell runtime"�[0m 155: �[36;1mfi�[0m 156: �[36;1m�[0m 157: �[36;1m# Option: Remove large packages�[0m 158: �[36;1m# REF: https://github.com/apache/flink/blob/master/tools/azure-pipelines/free_disk_space.sh�[0m 159: �[36;1m�[0m 160: �[36;1mif [[ false == 'true' ]]; then�[0m 161: �[36;1m BEFORE=$(getAvailableSpace)�[0m 162: �[36;1m �[0m 163: �[36;1m sudo apt-get remove -y '^aspnetcore-.*' || echo "::warning::The command [sudo apt-get remove -y '^aspnetcore-.*'] failed to complete successfully. Proceeding..."�[0m 164: �[36;1m sudo apt-get remove -y '^dotnet-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^dotnet-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 165: �[36;1m sudo apt-get remove -y '^llvm-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^llvm-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 166: �[36;1m sudo apt-get remove -y 'php.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y 'php.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 167: �[36;1m sudo apt-get remove -y '^mongodb-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^mongodb-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 168: �[36;1m sudo apt-get remove -y '^mysql-.*' --fix-missing || echo "::warning::The command [sudo apt-get remove -y '^mysql-.*' --fix-missing] failed to complete successfully. Proceeding..."�[0m 169: �[36;1m sudo apt-get remove -y azure-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri --fix-missing || echo "::warning::The command [sudo apt-get remove -y azure-cli google-chrome-stable firefox powershell mono-devel libgl1-mesa-dri --fix-missing] failed to complete successfully. Proceeding..."�[0m 170: �[36;1m sudo apt-get remove -y google-cloud-sdk --fix-missing || echo "::debug::The command [sudo apt-get remove -y google-cloud-sdk --fix-missing] failed to complete successfully. Proceeding..."�[0m 171: �[36;1m sudo apt-get remove -y google-cloud-cli --fix-missing || echo "::debug::The command [sudo apt-get remove -y google-cloud-cli --fix-missing] failed to complete successfully. Proceeding..."�[0m 172: �[36;1m sudo apt-get autoremove -y || echo "::warning::The command [sudo apt-get autoremove -y] failed to complete successfully. Proceeding..."�[0m 173: �[36;1m sudo apt-get clean || echo "::warning::The command [sudo apt-get clean] failed to complete successfully. Proceeding..."�[0m 174: �[36;1m�[0m ... 489: ffmpeg -hide_banner -loglevel warning -threads ${SE_FFMPEG_THREADS:-1} -thread_queue_size 512 \ 490: - -probesize 32M -analyzeduration 0 -y -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} \ 491: - -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET:-"-preset veryfast"} \ 492: - -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \ 493: - -pix_fmt yuv420p -movflags +faststart "$video_file" & 494: + -probesize 32M -analyzeduration 0 -y -f x11grab -video_size ${VIDEO_SIZE} -r ${FRAME_RATE} \ 495: + -i ${DISPLAY} ${SE_AUDIO_SOURCE} -codec:v ${CODEC} ${PRESET:-"-preset veryfast"} \ 496: + -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \ 497: + -pix_fmt yuv420p -movflags +faststart "$video_file" & 498: FFMPEG_PID=$! 499: if ps -p $FFMPEG_PID >/dev/null; then 500: recording_started="true" 501: Video/video.sh | 16 ++++++++-------- 502: 1 file changed, 8 insertions(+), 8 deletions(-) 503: Some shell scripts are not formatted. Please run 'make format_shell_scripts' to format and update them. 504: make: *** [Makefile:77: format_shell_scripts] Error 1 505: ##[error]Process completed with exit code 2. 506: ##[group]Run docker system prune -af

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PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
General	Use consistent sleep interval The random sleep duration could cause unpredictable behavior. Using a fixed interval would provide more consistent and predictable polling behavior, which is important for system stability and resource usage. Video/video.sh [292] + echo "$(date -u +"${ts_format}") [${process_name}] - No session is created yet, waiting for a new session to start" -+ sleep $((RANDOM % 16 + poll_interval)) ++ sleep ${poll_interval} [To ensure code accuracy, apply this suggestion manually] Suggestion importance[1-10]: 4 __ Why: The suggestion promotes predictable polling behavior, but the random component might be intentionally added to prevent synchronized polling from multiple instances. This is a minor behavioral optimization.	Low
	Increase video encoding bitrates The -maxrate and -bufsize parameters are set too low for high-resolution videos, which could cause quality degradation. Increase these values or make them proportional to the video resolution to maintain better quality. Video/video.sh [235] -+ -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-1000k} -bufsize ${SE_VIDEO_BUFSIZE:-2000k} \ ++ -tune zerolatency -crf ${SE_VIDEO_CRF:-28} -maxrate ${SE_VIDEO_MAXRATE:-2000k} -bufsize ${SE_VIDEO_BUFSIZE:-4000k} \ [To ensure code accuracy, apply this suggestion manually] Suggestion importance[1-10]: 3 __ Why: While higher bitrates could improve video quality, the current values are configurable via environment variables (SE_VIDEO_MAXRATE and SE_VIDEO_BUFSIZE). This is a minor optimization suggestion since users can already adjust these parameters as needed.	Low
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