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Chris LuandGitHub
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* filer: keep the existing peer subscription on a repeated add A cluster node add for a peer that is already followed restarted the subscription, dropping the metadata events between the two runs. * master: tell a connecting client the current cluster membership Cluster node updates are only broadcast to the clients connected at that moment. A filer that lost its master stream while a peer came back never learned about the peer, and stopped replicating its metadata for good. * test: a filer joining the master learns about the filers already there * test: a filer resubscribes to a peer that registered while it was disconnected Runs the reported sequence against real processes: filer2 leaves, filer1 is paused and its master stream is broken, filer2 registers again, and filer1 has to replicate from it after reconnecting.
Metadata Subscribe Integration Tests
This directory contains integration tests for the SeaweedFS metadata subscription functionality.
Tests
TestMetadataSubscribeBasic
Tests basic metadata subscription functionality:
- Start a SeaweedFS cluster (master, volume, filer)
- Subscribe to metadata changes
- Upload files and verify events are received
TestMetadataSubscribeSingleFilerNoStall
Regression test for issue #4977:
- Tests that metadata subscription doesn't stall in single-filer setups
- Simulates high-load file uploads while a subscriber tries to keep up
- Verifies that events are received without significant stalling
The bug was that in single-filer setups, SubscribeMetadata would block indefinitely
on MetaAggregator.MetaLogBuffer which remains empty (no peers to aggregate from).
The fix ensures that when the buffer is empty, the subscription returns to read from
persisted logs on disk.
TestMetadataSubscribeResumeFromDisk
Tests that subscription can resume from disk:
- Upload files before starting subscription
- Wait for logs to be flushed to disk
- Start subscription from the beginning
- Verify pre-uploaded files are received from disk
Running Tests
# Run all tests (requires weed binary in PATH or built)
go test -v ./test/metadata_subscribe/...
# Skip integration tests
go test -short ./test/metadata_subscribe/...
# Run with increased timeout for slow systems
go test -v -timeout 5m ./test/metadata_subscribe/...
Requirements
weedbinary must be available in PATH or in the parent directories- Tests create temporary directories that are cleaned up after completion
- Tests use ports 9333 (master), 8080 (volume), 8888 (filer)