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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2020/06/11 06:04:37 UTC
[GitHub] [incubator-doris] morningman opened a new issue #3827: [Metric] Add new metrics to monitor TCP status
morningman opened a new issue #3827:
URL: https://github.com/apache/incubator-doris/issues/3827
**Motivation**
When we operate and maintain the cluster ourselves, we have encountered many times that the state of the Doris cluster is abnormal due to machine network failures, such as heartbeat failure and query blocking.
Because there is no corresponding metrics, it takes a long time to troubleshoot the problem.
**New metrics**
Add 2 new metrics
```
tcp_in_errs
tcp_retrans_segs
```
These 2 metrics is got from /proc/net/snmp, indicate the number of error tcp request and number of retransmit tcp requests.
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[GitHub] [incubator-doris] chaoyli closed issue #3827: [Metric] Add new metrics to monitor TCP status
Posted by GitBox <gi...@apache.org>.
chaoyli closed issue #3827:
URL: https://github.com/apache/incubator-doris/issues/3827
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[GitHub] [incubator-doris] chaoyli edited a comment on issue #3827: [Metric] Add new metrics to monitor TCP status
Posted by GitBox <gi...@apache.org>.
chaoyli edited a comment on issue #3827:
URL: https://github.com/apache/incubator-doris/issues/3827#issuecomment-642637789
If you have add TCP error, you can also add more error as follow.
```
atmptf/s
estres/s
retrans/s
isegerr/s
orsts/s
```
You can get the manual from https://linux.die.net/man/1/sar.
And also, you can use the following command to get the result.
```
sar -n ETCP 1
```
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[GitHub] [incubator-doris] chaoyli commented on issue #3827: [Metric] Add new metrics to monitor TCP status
Posted by GitBox <gi...@apache.org>.
chaoyli commented on issue #3827:
URL: https://github.com/apache/incubator-doris/issues/3827#issuecomment-642637789
If you have add TCP error, you can also add more error as follow.
```
atmptf/s
estres/s
retrans/s
isegerr/s
orsts/s
```
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[GitHub] [incubator-doris] morningman commented on issue #3827: [Metric] Add new metrics to monitor TCP status
Posted by GitBox <gi...@apache.org>.
morningman commented on issue #3827:
URL: https://github.com/apache/incubator-doris/issues/3827#issuecomment-642643745
> If you have add TCP error, you can also add more error as follow.
>
> ```
> atmptf/s
> estres/s
> retrans/s
> isegerr/s
> orsts/s
> ```
>
> You can get the manual from https://linux.die.net/man/1/sar.
> And also, you can use the following command to get the result.
>
> ```
> sar -n ETCP 1
> ```
In our recent operation and maintenance experience, only these two parameters are currently instructive. Other parameters, such as `atmptf/s`, are always in a non-zero state, which is not helpful for troubleshooting. If there is a demand later, we can add it later.
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