No data in Write Thruoghput per client panel about lustreperfmon HOT 7 CLOSED

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@ldd91

To enable that panel, need to enable the following option when running esmon_install. And please note that enabling this option would cause high pressure to the monitoring system if there are huge number of clients:

lustre_exp_ost — Define whether to enable (true) or disable (false) metrics collection of export information of Lustre OST. To avoid a flood of metrics, this parameter is usually disabled in Lustre file systems with a large number of clients. Default value: false.

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Tks a lot,but how many clients is huge ? we now have about 50 clients in lustre.At the same time,will it cause the pressure of Lustre?

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we now have about 50 clients in lustre.At the same time,will it cause the pressure of Lustre?

We saw high latency of LustrePerfMon when there are hundreds of Lustre clients. Given that Lustre could support thoudsands of clients, 50 clients is not a lot. And with reasonable hardware, it is very likely that LustrePerfMon can support that many clients. But that would require more tests and also depends on collect interval and other configurations.

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Will it add the pressure of the server,like OSS server?

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Yes, it will. But the pressure won't be huge. It is more likely the bottleneck would be the InfluxDB on the monitoring server.

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Ok,thank you,we will have a test.

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