Re: cephfs-top doesn't work

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This doesn't break anything, but the current version of cephfs-top cannot accommodate great number of clients. The workaround is to limit the number of clients (if that's possible) or reduce the terminal zoom/font size to accommodate 100 clients.
We have a tracker [1] to implement the limit also.

[1] https://tracker.ceph.com/issues/55121

On 19/04/22 20:30, Vladimir Brik wrote:
Yes, `ceph fs perf stats` works.

Reverting to older versions I get "exception: addwstr() returned ERR"

If I manually set self.height, self.width to something large in refresh_window_size I can see some data, but there is no way to scroll, so I'll probably need to write something myself

Vlad

On 4/18/22 21:20, Xiubo Li wrote:

On 4/19/22 3:43 AM, Vladimir Brik wrote:
Does anybody know why cephfs-top may only display header lines (date, client types, metric names) but no actual data?

When I run it, cephfs-top consumes quite a bit of the CPU and generates quite a bit of network traffic, but it doesn't actually display the data.

I poked around in the source code and it seems like it might be curses issue, but I am not sure.

Does there any data from `ceph fs perf stats` ?

Before I hit the same issue it was caused by the curses and windows issue, we have fixed that long time ago, you can try to enlarge your terminal size and try again.

If that still doesn't work please try to revert some recent commits of the cephfs-top to see whether will it work for you. Recently there have some new features supported.

-- Xiubo


Vlad
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