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Tree: 37809822f3

add-ec-vacuum

add-foundation-db

add_fasthttp_client

add_remote_storage

adding-message-queue-integration-tests

avoid_releasing_temp_file_on_write

changing-to-zap

collect-public-metrics

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

fasthttp

filer1_maintenance_branch

fix-GetObjectLockConfigurationHandler

fix-versioning-listing-only

ftp

gh-pages

improve-fuse-mount

improve-fuse-mount2

logrus

master

message_send

mount2

mq-subscribe

mq2

original_weed_mount

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

test_udp

testing

testing-sdx-generation

tikv

track-mount-e2e

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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seaweedfs/k8s/charts

History

chrislu 37809822f3 fix: critical bug causing 51% message loss in stateless reads CRITICAL BUG FIX: ReadMessagesAtOffset was returning error instead of attempting disk I/O when data was flushed from memory, causing massive message loss (6254 out of 12192 messages = 51% loss). Problem: In log_read_stateless.go lines 120-131, when data was flushed to disk (empty previous buffer), the code returned an 'offset out of range' error instead of attempting disk I/O. This caused consumers to skip over flushed data entirely, leading to catastrophic message loss. The bug occurred when: 1. Data was written to LogBuffer 2. Data was flushed to disk due to buffer rotation 3. Consumer requested that offset range 4. Code found offset in expected range but not in memory 5. ❌ Returned error instead of reading from disk Root Cause: Lines 126-131 had early return with error when previous buffer was empty: // Data not in memory - for stateless fetch, we don't do disk I/O return messages, startOffset, highWaterMark, false, fmt.Errorf("offset %d out of range...") This comment was incorrect - we DO need disk I/O for flushed data! Fix: 1. Lines 120-132: Changed to fall through to disk read logic instead of returning error when previous buffer is empty 2. Lines 137-177: Enhanced disk read logic to handle TWO cases: - Historical data (offset < bufferStartOffset) - Flushed data (offset >= bufferStartOffset but not in memory) Changes: - Line 121: Log "attempting disk read" instead of breaking - Line 130-132: Fall through to disk read instead of returning error - Line 141: Changed condition from 'if startOffset < bufferStartOffset' to 'if startOffset < currentBufferEnd' to handle both cases - Lines 143-149: Add context-aware logging for both historical and flushed data - Lines 154-159: Add context-aware error messages Expected Results: - Before: 51% message loss (6254/12192 missing) - After: <1% message loss (only from rebalancing, which we already fixed) - Duplicates: Should remain ~47% (from rebalancing, expected until offsets committed) Testing: - ✅ Compiles successfully - Ready for integration testing with standard-test Related Issues: - This explains the massive data loss in recent load tests - Disk I/O fallback was implemented but not reachable due to early return - Disk chunk cache is working but was never being used for flushed data Priority: CRITICAL - Fixes production-breaking data loss bug		6 days ago
..
seaweedfs	Helm: allow specifying extraArgs for s3 (#7294)	2 weeks ago
artifacthub-repo.yml	Update artifacthub-repo-stable.yml (#4330)	3 years ago