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[ntuple] Huge file support, write end - #24056

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jblomer wants to merge 8 commits into
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jblomer:ntuple-huge-file-write
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jblomer wants to merge 8 commits into
root-project:masterfrom
jblomer:ntuple-huge-file-write

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@jblomer

@jblomer jblomer commented Nov 8, 2026

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Automatically cut cluster groups based on number of pages written. Drop page metadata once page list is written.

@jblomer
jblomer requested review from enirolf, hahnjo and pcanal November 8, 2026 19:56
@jblomer jblomer self-assigned this Nov 8, 2026
@jblomer
jblomer requested a review from silverweed as a code owner November 8, 2026 19:56
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github-actions Bot commented Nov 8, 2026 •

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Test Results

    22 files      22 suites   3d 13h 40m 3s ⏱️
 3 881 tests  3 867 ✅ 0 💤 14 ❌
75 963 runs  75 949 ✅ 0 💤 14 ❌

For more details on these failures, see this check.

Results for commit e861e8f.

♻️ This comment has been updated with latest results.

@jblomer
jblomer force-pushed the ntuple-huge-file-write branch from 15ab5b7 to fc9b1ea Compare November 8, 2026 22:07
Prepares for applying automatic cluster group creation in the
argumentless overload while following the explicit cluster group
steering parameter in the other overload.
Move the check for an empty cluster group from the callers of
RPageSink::CommitClusterGroup() to that method itself. Return
immedately without doing anything if there is no new cluster to commit.
@jblomer
jblomer force-pushed the ntuple-huge-file-write branch from fc9b1ea to e861e8f Compare November 8, 2026 22:23
If a cluster commit surpasses the cluster group page threshold,
automatically commit a cluster group.

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