Tree:
e878431dea
add-admin-and-worker-to-helm-charts
add-ec-vacuum
add_fasthttp_client
add_remote_storage
adding-message-queue-integration-tests
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
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/tus-protocol
filer1_maintenance_branch
fix-GetObjectLockConfigurationHandler
fix-admin-user-creation-7624
fix-mount-http-parallelism
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
original_weed_mount
pr-7412
random_access_file
refactor-needle-read-operations
refactor-volume-write
remote_overlay
revert-5134-patch-1
revert-5819-patch-1
revert-6434-bugfix-missing-s3-audit
s3-select
sub
tcp_read
test-reverting-lock-table
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testing
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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
${ noResults }
1 Commits (e878431dea86d0bf61d8c5f35dbcfbf0e898521b)
| Author | SHA1 | Message | Date |
|---|---|---|---|
chrislu
|
1cdb2fcf07 |
fix: implement flush-before-getPos() for Parquet compatibility
After analyzing Parquet-Java source code, confirmed that:
1. Parquet calls out.getPos() before writing each page to record offsets
2. These offsets are stored in footer metadata
3. Footer length (4 bytes) + MAGIC (4 bytes) are written after last page
4. When reading, Parquet seeks to recorded offsets
IMPLEMENTATION:
- getPos() now flushes buffer before returning position
- This ensures recorded offsets match actual file positions
- Added comprehensive debug logging
RESULT:
- Offsets are now correctly recorded (verified in logs)
- Last getPos() returns 1252 ✓
- File ends at 1260 (1252 + 8 footer bytes) ✓
- Creates 17 chunks instead of 1 (side effect of many flushes)
- EOF exception STILL PERSISTS ❌
ANALYSIS:
The EOF error persists despite correct offset recording. The issue may be:
1. Too many small chunks (17 chunks for 1260 bytes) causing fragmentation
2. Chunks being assembled incorrectly during read
3. Or a deeper issue in how Parquet footer is structured
The implementation is CORRECT per Parquet's design, but something in
the chunk assembly or read path is still causing the 78-byte EOF error.
Next: Investigate chunk assembly in SeaweedRead or consider atomic writes.
|
2 weeks ago |