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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2019/11/23 09:01:55 UTC
[GitHub] [incubator-doris] kangkaisen opened a new issue #2282:
DataStreamSender take a long time under high concurrent query
kangkaisen opened a new issue #2282: DataStreamSender take a long time under high concurrent query
URL: https://github.com/apache/incubator-doris/issues/2282
**Describe the bug**
```
I1122 09:44:58.566290 78779 plan_fragment_executor.cpp:568] Fragment 30f51ba7ecd34f3c-8faada0cd071d2a5:(Active: 19s384ms, % non-ch
ild: 0.00%)
- AverageThreadTokens: 1.00
- PeakReservation: 0
- PeakUsedReservation: 0
- RowsProduced: 110.59K
BlockMgr:
- BlockWritesOutstanding: 0
- BlocksCreated: 0
- BlocksRecycled: 0
- BufferedPins: 0
- BytesWritten: 0
- MaxBlockSize: 8.00 MB
- MemoryLimit: 2.00 GB
- TotalBufferWaitTime: 0.000ns
- TotalEncryptionTime: 0.000ns
- TotalIntegrityCheckTime: 0.000ns
- TotalReadBlockTime: 0.000ns
DataStreamSender (dst_id=35):(Active: 19s375ms, % non-child: 0.00%)
- BytesSent: 926.40 KB
- IgnoreRows: 0
- NetworkThroughput(*): 0.00 /sec
- OverallThroughput: 47.81 KB/sec
- SerializeBatchTime: 7.103ms
- ThriftTransmitTime(*): 0.000ns
- UncompressedRowBatchSize: 1.69 MB
```
**1 The scan node time is very short，and the exchange node parent node time is also very short.
2 There are a lot of timeout querys
3 The CPU, IO, Mem ,Network resource utilization is normal
4 The bprc `transmit_data` latency is very high.**
**5 DataStreamRecvr cancel_stream maybe take a lone time**
```
W1122 20:55:12.063787 6106 data_stream_mgr.cpp:252] cancel cancel_stream time 56
W1122 20:55:12.063791 6112 data_stream_mgr.cpp:159] transmit_data time 53
W1122 20:55:12.068578 6116 data_stream_mgr.cpp:252] cancel cancel_stream time 57
W1122 20:49:50.773799 6119 data_stream_mgr.cpp:252] cancel cancel_stream time 851
```
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