weaviate/weaviate · error

get file info

Error message

get file info

What it means

switchCommitLogs stats the active commit-log file to decide whether it exceeds the size threshold and must be rotated. This wrapper fires when l.currentFile.Stat fails — file deleted underneath the logger, descriptor error, or I/O failure — so rotation cannot be evaluated and the switch aborts.

Source

Thrown at adapters/repos/db/vector/hnsw/commit_logger.go:513

}

func (l *hnswCommitLogger) ResumeAfterBackup(ctx context.Context) error {
	// Nothing to do here. The backup invariant ("listed files are immutable
	// for the duration of the copy") is upheld by ListFiles excluding the
	// active commit log file by path. The active file *does* receive writes
	// during a backup, but it is never part of the file set the backup
	// machinery copies.
	return nil
}

func (l *hnswCommitLogger) switchCommitLogs(force bool) (bool, error) {
	l.Lock()
	defer l.Unlock()

	// Get current file size
	info, err := l.currentFile.Stat()
	if err != nil {
		return false, errors.Wrap(err, "get file info")
	}
	size := info.Size()

	if size <= l.maxSizeIndividual && !force {
		return false, nil
	}

	oldFile := l.currentFile
	oldWriter := l.currentWriter
	oldFileName := l.currentFileName

	// Flush and fsync the current file so its bytes are durable before we stop
	// appending to it. The old file is deliberately NOT closed yet: every step
	// below can fail (ENOSPC/EIO), and l.currentFile must never be left pointing
	// at a dead fd. While the old file stays open and assigned, a failure here
	// just aborts the rotation and writes continue against it.
	if err := oldWriter.Flush(); err != nil {
		return true, errors.Wrap(err, "flush commit log")

View on GitHub (pinned to 75aa4b6d11)

Solutions

1. Check the wrapped error: the active commit-log file may have been removed externally
2. Verify no external cleanup deletes WAL files while the shard is open; retry the switch

When it happens

Trigger: Thrown at adapters/repos/db/vector/hnsw/commit_logger.go:513 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of weaviate/weaviate@75aa4b6d11 (2026-09-04). Data as JSON: /api/errors/a270cf76347b8dc5. Report an issue: GitHub.