Aias00 opened a new issue, #6563:
URL: https://github.com/apache/shenyu/issues/6563
## Description
`initClient0` always executes `CREATE_DISTRIBUTED_TABLE_SQL` using
`config.getClusterName()`, and `consume0` always inserts into
`request_log_distributed`. On a single-node ClickHouse (no cluster configured),
`clusterName` is null -> `Distributed('null', ...)`, the distributed table
creation fails (caught and logged), so `request_log_distributed` is never
created, and every batch insert then fails.
## Location
```
shenyu-plugin-logging-clickhouse/.../client/ClickHouseLogCollectClient.java:140,
87
ClickHouseLoggingConstant.java:68 (PRE_INSERT_SQL targets
request_log_distributed)
```
## Impact
On a single-node ClickHouse deployment without a `clusterName` configured,
all log batches throw on insert; `AbstractLogCollector` catches and drops them,
so no logs are persisted.
## Suggested fix
Only create/insert-through the distributed table when `clusterName` is
configured; otherwise insert directly into `request_log`.
## Related existing issue(s)
None
_Identified during the 2026-08-02 audit; full list in
[`docs/issue-candidates-2026-08-02.md`](docs/issue-candidates-2026-08-02.md)._
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