dataroaring opened a new pull request, #60406:
URL: https://github.com/apache/doris/pull/60406
## Summary
- Suppress verbose stack trace logging for expected errors when backends are
unavailable:
- `HeartbeatMgr`: ConnectException (connection refused) during backend
heartbeat
- `DynamicPartitionScheduler`: "available backend" errors when creating
dynamic partitions
- Only log host and error message for these expected conditions
- Preserve full stack trace for other unexpected exceptions that need
investigation
## Background
When backends are down (e.g., during rolling restarts or maintenance), these
warnings flood the logs with stack traces that provide no diagnostic value
since the condition is expected.
**Before:**
```
WARN backend heartbeat got exception
org.apache.thrift.transport.TTransportException: java.net.ConnectException:
Connection refused
at org.apache.thrift.transport.TSocket.open(TSocket.java:255)
... (15 lines of stack trace)
```
**After:**
```
WARN backend heartbeat got exception, host: 127.0.0.1, error:
java.net.ConnectException: Connection refused
```
## Test plan
- [ ] Manual testing with backend down to verify log output is cleaner
- [ ] Verify other exceptions still log full stack trace
🤖 Generated with [Claude Code](https://claude.ai/code)
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