Tree: fba35124af

add-ec-vacuum

add-filer-iam-grpc

add-iam-grpc-management

add_fasthttp_client

add_remote_storage

adding-message-queue-integration-tests

adjust-fsck-cutoff-default

also-delete-parent-directory-if-empty

avoid_releasing_temp_file_on_write

changing-to-zap

collect-public-metrics

copilot/fix-helm-chart-installation

copilot/fix-s3-object-tagging-issue

copilot/make-renew-interval-configurable

copilot/make-renew-interval-configurable-again

copilot/sub-pr-7677

create-table-snapshot-api-design

data_query_pushdown

dependabot/maven/other/java/client/com.google.protobuf-protobuf-java-3.25.5

dependabot/maven/other/java/examples/org.apache.hadoop-hadoop-common-3.4.0

detect-and-plan-ec-tasks

do-not-retry-if-error-is-NotFound

ec-disk-type-support

enhance-erasure-coding

fasthttp

feature/mini-port-detection

feature/modernize-s3-tests

feature/s3-multi-cert-support

filer1_maintenance_branch

fix-GetObjectLockConfigurationHandler

fix-bucket-name-case-7910

fix-helm-fromtoml-compatibility

fix-mount-http-parallelism

fix-mount-read-throughput-7504

fix-pr-7909

fix-s3-configure-consistency

fix-s3-object-tagging-issue-7589

fix-sts-session-token-7941

fix-ttl-reporting-8158-temp

fix-versioning-listing-only

fix/windows-test-file-cleanup

ftp

gh-pages

iam-multi-file-migration

iam-permissions-and-api

improve-fuse-mount

improve-fuse-mount2

logrus

master

message_send

mount2

mq-subscribe

mq2

nfs-cookie-prefix-list-fixes

optimize-delete-lookups

original_weed_mount

pr-7412

pr/7984

pr/8140

raft-dual-write

random_access_file

refactor-needle-read-operations

refactor-volume-write

remote_overlay

remove-implicit-directory-handling

revert-5134-patch-1

revert-5819-patch-1

revert-6434-bugfix-missing-s3-audit

s3-remote-cache-singleflight

s3-select

s3tables-by-claude

sub

tcp_read

test-reverting-lock-table

test_udp

testing

testing-sdx-generation

tikv

track-mount-e2e

upgrade-versions-to-4.00

volume_buffered_writes

worker-execute-ec-tasks

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dev

helm-3.65.1

v0.69

v0.70beta

v3.33

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Commit Graph

1 Commits (fba35124afdc7afc238d95401c8a59072b02d25e)

Author	SHA1	Message	Date
chrislu	852ca41928	docs: BREAKTHROUGH - found the bug in Spark local reproduction! KEY FINDINGS from local Spark test: 1. flushedPosition=0 THE ENTIRE TIME during writes! - All data stays in buffer until close - getPos() returns bufferPosition (0 + bufferPos) 2. Critical sequence discovered: - Last getPos(): bufferPosition=1252 (Parquet records this) - close START: buffer.position()=1260 (8 MORE bytes written!) - File size: 1260 bytes 3. The Gap: - Parquet calls getPos() and gets 1252 - Parquet writes 8 MORE bytes (footer metadata) - File ends at 1260 - But Parquet footer has stale positions from when getPos() was 1252 4. Why unit tests pass but Spark fails: - Unit tests: write, getPos(), close (no more writes) - Spark: write chunks, getPos(), write footer, close The Parquet footer metadata is INCORRECT because Parquet writes additional data AFTER the last getPos() call but BEFORE close. Next: Download actual Parquet file and examine footer with parquet-tools.	2 months ago