What causes "commit failed with status {} {}, reason {}" in apache/seatunnel?

Read the logged status code and reason: 401/403 → fix username/password/ACL; 404 → verify FE host and cluster name; 500 → check SelectDB/FE server logs.

apache/seatunnel · error

commit failed with status

Error message

commit failed with status {} {}, reason {}

What it means

CopySQLUtil.copyFileToDatabase() commits a staged file to SelectDB via an HTTP COPY INTO request and expects HTTP 307 (HTTP_TEMPORARY_REDIRECT) to follow to the final ingest host. When the response status differs it logs this warn/error ('commit failed with status {} {}, reason {}') showing status code, host, and reason phrase, then retries on the next host.

Solutions

Read the logged status code and reason: 401/403 → fix username/password/ACL; 404 → verify FE host and cluster name; 500 → check SelectDB/FE server logs.
Confirm the redirect is honored — the HTTP client must follow or manually handle the 307 Location header (many clients strip or block redirects for POST).
Validate the COPY SQL / label and file URL generated by CopySQLUtil; reproduce with curl against the same FE endpoint.
Retry once the transient (5xx / network) failures clear; the util already iterates over hosts, so ensure at least one FE is healthy.
Check load balancer/proxy config that may swallow 307 redirects between client and FE.

Example fix

// before
if (statusCode != HTTP_TEMPORARY_REDIRECT) {
    log.warn("commit failed with status {} {}, reason {}", statusCode, hostPort, reasonPhrase);
}
// after (client-side diagnosis)
# curl -v -u user:pass -H 'Expect:' -T file.csv 'http://fe:8030/api/<db>/<tbl>/_copy_into'
# inspect returned status; 307 Location must be followed to the BE ingest host

Defensive patterns

Strategy: retry

Validate before calling

// validate SelectDB connection before the load
try (CloseableHttpClient c = HttpClients.createDefault()) {
    HttpGet get = new HttpGet("http://" + feHost + ":" + feHttpPort + "/api/health");
    HttpResponse r = c.execute(get);
    if (r.getStatusLine().getStatusCode() != 200)
        throw new IllegalStateException("FE unhealthy: " + r.getStatusLine());
}

Try / catch

try {
    copySqlUtil.copyFileToDatabase(...);
} catch (SelectDBConnectorException e) {
    // correlate with the logged 'commit failed with status {} {}' lines to
    // distinguish 401/403 (credentials), 404 (host/db), 5xx (server) causes
}

Prevention

Verify FE host/port and credentials in sink options before jobs
Use an HTTP client that follows POST redirects (307) or handles Location manually
Bypass or configure proxies/LBs to preserve redirect semantics
Check SelectDB FE/BE logs when 5xx statuses recur

When it happens

Trigger: The HTTP POST carrying the COPY commit returns a status other than 307 — e.g. 401/403 (bad credentials), 404 (wrong FE host/URL), 500 (server error), 400 (malformed COPY SQL or label conflict) — from any SelectDB front-end node in the retry loop.

Common situations: Wrong cluster/user/password in the SelectDB sink options; FE node down or unreachable behind a load balancer; file path/label invalid causing a 4xx; cluster under load returning 5xx; proxy intercepting the redirect chain so 307 never arrives.

Understand the failure class

Background: "API error: {status}" and "HTTP 401/403/404/429/5xx" errors: non-2xx HTTP responses explained — this error's family across 27 libraries.

Related errors

AI-assisted analysis of apache/seatunnel@cf67b549a7 (2026-09-10). Data as JSON: /api/errors/fba9b98c54d66137. Report an issue: GitHub.

Appendix: source

Thrown at seatunnel-connectors-v2/connector-selectdb-cloud/src/main/java/org/apache/seatunnel/connectors/selectdb/rest/CopySQLUtil.java:78

        boolean success = false;
        CloseableHttpResponse response;
        String loadResult = "";
        while (retry++ <= selectdbConfig.getMaxRetries()) {
            HttpPostBuilder postBuilder = new HttpPostBuilder();
            postBuilder
                    .setUrl(String.format(COMMIT_PATTERN, hostPort))
                    .baseAuth(selectdbConfig.getUsername(), selectdbConfig.getPassword())
                    .setEntity(new StringEntity(OBJECT_MAPPER.writeValueAsString(params)));
            try {
                response = httpClient.execute(postBuilder.build());
            } catch (IOException e) {
                log.error("commit error : ", e);
                continue;
            }
            statusCode = response.getStatusLine().getStatusCode();
            reasonPhrase = response.getStatusLine().getReasonPhrase();
            if (statusCode != HTTP_TEMPORARY_REDIRECT) {
                log.warn(
                        "commit failed with status {} {}, reason {}",
                        statusCode,
                        hostPort,
                        reasonPhrase);
            } else if (response.getEntity() != null) {
                loadResult = EntityUtils.toString(response.getEntity());
                success = handleCommitResponse(loadResult);
                if (success) {
                    log.info(
                            "commit success cost {}ms, response is {}",
                            System.currentTimeMillis() - start,
                            loadResult);
                    break;
                } else {
                    log.warn("commit failed, retry again");
                }
            }
        }

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