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Fix "File name too long" problem - #602

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mikemccand merged 1 commit into
mikemccand:mainfrom
neoremind:truncate_file_name
Jul 30, 2026
Merged

Fix "File name too long" problem#602
mikemccand merged 1 commit into
mikemccand:mainfrom
neoremind:truncate_file_name

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@neoremind

@neoremind neoremind commented Jul 23, 2026

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Follow-up to #576.

The filename-too-long problem not only exists on MacOS, but also exists on Linux. When indexing with facet, the index folder name as well as the jfr filename exceeds the limit. Error message:

[0.411s][error][jfr,startup] Could not start recording, not able to write to file /local/home/xuzh/workspace/logs/baseline_vs_patch/2026.07.23.14.16.52/bench-index-baseline_vs_patch-wikimediumall.fork_lucene.candidate.facets.taxonomy:Date.taxonomy:Month.taxonomy:DayOfYear.sortedset:Date.sortedset:Month.sortedset:DayOfYear.taxonomy:RandomLabel.sortedset:RandomLabel.Lucene90.Lucene104.dvfields.nd33.3326M.jfr. /local/home/zhangxuv/workspace/logs/baseline_vs_patch/2026.07.23.14.16.52/bench-index-baseline_vs_patch-wikimediumall.fork_lucene.candidate.facets.taxonomy:Date.taxonomy:Month.taxonomy:DayOfYear.sortedset:Date.sortedset:Month.sortedset:DayOfYear.taxonomy:RandomLabel.sortedset:RandomLabel.Lucene90.Lucene104.dvfields.nd33.3326M.jfr: File name too long
Error occurred during initialization of VM
Failure when starting JFR on_create_vm_3

Validate on linux and mac:

~ touch "$(python3 -c "print('a' * 255)")"
~ touch "$(python3 -c "print('a' * 256)")"
touch: cannot touch ‘aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa’: File name too long

mikemccand
mikemccand approved these changes Jul 30, 2026
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@mikemccand mikemccand left a comment

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Thank you! I'll merge.

@mikemccand
mikemccand merged commit 3b93587 into mikemccand:main Jul 30, 2026
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@neoremind @mikemccand