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Tree: b44e51fae6

add-ec-vacuum

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

filer1_maintenance_branch

fix-GetObjectLockConfigurationHandler

fix-mount-http-parallelism

fix-mount-read-throughput-7504

fix-s3-object-tagging-issue-7589

fix-versioning-listing-only

ftp

gh-pages

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

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

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

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v3.33

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seaweedfs/test/java/spark/src

History

chrislu d045624994 test: comprehensive I/O comparison reveals timing/metadata issue Created SparkDataFrameWriteComparisonTest to compare Spark operations between local and SeaweedFS filesystems. BREAKTHROUGH FINDING: - Direct df.write().parquet() → ✅ WORKS (1260 bytes) - Direct df.read().parquet() → ✅ WORKS (4 rows) - SparkSQLTest write → ✅ WORKS - SparkSQLTest read → ❌ FAILS (78-byte EOF) The issue is NOT in the write path - writes succeed perfectly! The issue appears to be in metadata visibility/timing when Spark reads back files it just wrote. This suggests: 1. Metadata not fully committed/visible 2. File handle conflicts 3. Distributed execution timing issues 4. Spark's task scheduler reading before full commit The 78-byte error is consistent with Parquet footer metadata being stale or not yet visible to the reader.		1 month ago
..
main/java/seaweed/spark	test: prove I/O operations identical between local and SeaweedFS	1 month ago
test	test: comprehensive I/O comparison reveals timing/metadata issue	1 month ago