ScanCode tool not triggered for a coordinate - aircompressor

[yashkohli88]

The ScanCode tool is failing to trigger for the following coordinate:

git/github/airlift/aircompressor/e139a31be059855a5a70f6994a4ecaa0adbbea7a

Scancode Investigation Summary

Root Cause

• Large binary test files (mozilla, samba, webster ~50-100MB each in testdata/silesia/)
• 2 parallel scancode workers each loading files into memory
• 1000s timeout allows full processing of these huge files

All Test Scenarios

#	Scenario	Timeout	Processes	Options	Docker RAM	Peak Memory	Duration	Files Completed	Result
1	Original failure	1000s	2	-	7.65GB	>7.65GB	N/A	0	OOM SIGKILL
2	Manual docker exec	1000s	0	-	47GB	~17GB	~22 min	0/3 (all timed out)	Success
3	Test: huge timeout	1000000s	1	--quiet	16GB	>16GB	N/A	N/A	OOM SIGKILL
4	Test: huge timeout	1000000s	1	--quiet	47GB	~36GB+	N/A	N/A	OOM SIGKILL
5	Test: --ignore patterns	1000000s	2	--ignore */testdata/* etc.	16GB	~2GB	~2 min	N/A (skipped)	Success (files excluded)
6	Test: default timeout	120s	2	-	47GB	~2GB	~5 min	0/3 (all timed out)	Success
7	Final: original config	1000s	2	-	47GB	27.57GB	~33 min	2/3 (samba timed out)	Success

Key Findings

• Original config (timeout: 1000, processes: 2) needs ~28GB RAM
• Original Docker limit was 7.65GB -> OOM
• Manual run with processes: 0 (debug mode) uses less memory (~17GB) but slower
• Default timeout (120s) skips large test files, only needs ~2GB
• --ignore patterns can exclude problematic files entirely (~2GB, fastest)
• Huge timeout (1000000s) forces full binary parsing → 36GB+ → OOM even at 47GB