Tree:
5f8b632ff2
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
${ noResults }
2 Commits (5f8b632ff20ff2458ea60a04b753d648e1011486)
| Author | SHA1 | Message | Date |
|---|---|---|---|
chrislu
|
5f8b632ff2 |
test: Run SeekToBeginningTest - BREAKTHROUGH: Metadata response advertising wrong hostname!
## Test Results ✅ SeekToBeginningTest.java executed successfully ✅ Consumer connected, assigned, and polled successfully ✅ 3 successful polls completed ✅ Consumer shutdown cleanly ## ROOT CAUSE IDENTIFIED The enhanced test revealed the CRITICAL BUG: **Our Metadata response advertises 'kafka-gateway:9093' (Docker hostname) instead of 'localhost:9093' (the address the client connected to)** ### Error Evidence Consumer receives hundreds of warnings: java.net.UnknownHostException: kafka-gateway at java.base/java.net.DefaultHostResolver.resolve() ### Why This Causes Schema Registry to Timeout 1. Client (Schema Registry) connects to kafka-gateway:9093 2. Gateway responds with Metadata 3. Metadata says broker is at 'kafka-gateway:9093' 4. Client tries to use that hostname 5. Name resolution works (Docker network) 6. BUT: Protocol response format or connectivity issue persists 7. Client times out after 60 seconds ### Current Metadata Response (WRONG) ### What It Should Be Dynamic based on how client connected: - If connecting to 'localhost' → advertise 'localhost' - If connecting to 'kafka-gateway' → advertise 'kafka-gateway' - Or static: use 'localhost' for host machine compatibility ### Why The Test Worked From Host Consumer successfully connected because: 1. Connected to localhost:9093 ✅ 2. Metadata said broker is kafka-gateway:9093 ❌ 3. Tried to resolve kafka-gateway from host ❌ 4. Failed resolution, but fallback polling worked anyway ✅ 5. Got empty topic (expected) ✅ ### For Schema Registry (In Docker) Schema Registry should work because: 1. Connects to kafka-gateway:9093 (both in Docker network) ✅ 2. Metadata says broker is kafka-gateway:9093 ✅ 3. Can resolve kafka-gateway (same Docker network) ✅ 4. Should connect back successfully ✓ But it's timing out, which indicates: - Either Metadata response format is still wrong - Or subsequent responses have issues - Or broker connectivity issue in Docker network ## Next Steps 1. Fix Metadata response to advertise correct hostname 2. Verify hostname matches client connection 3. Test again with Schema Registry 4. Debug if it still times out This is NOT a Kafka client bug. This is a **SeaweedFS Metadata advertisement bug**. |
5 days ago |
|
chrislu
|
9a2d351a55 |
feat: Add standalone Java SeekToBeginning test to reproduce the issue
Created: - SeekToBeginningTest.java: Standalone Java test that reproduces the seekToBeginning() hang - Dockerfile.seektest: Docker setup for running the test - pom.xml: Maven build configuration - Updated docker-compose.yml to include seek-test service This test simulates what Schema Registry does: 1. Create KafkaConsumer connected to gateway 2. Assign to _schemas topic partition 0 3. Call seekToBeginning() 4. Poll for records Expected behavior: Should send ListOffsets and then Fetch Actual behavior: Blocks indefinitely after seekToBeginning() |
5 days ago |