Re: Massive TCP connection on radosgw

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Hi John,

Thanks for your reply. We have also restarted the server to get rid of it.

Hi All,

Does anybody know a better solution than restarting the server? Since we use radosgw in production, we cannot afford service restart on a daily basis.

Regards,
Li Wang


On 20 May 2019, at 2:48 PM, John Hearns <hearnsj@xxxxxxxxxxxxxx> wrote:

I found similar behaviour on a Nautilus cluster on Friday. Around 300 000 open connections which I think were the result of a benchmarking run which was terminated. I restarted the radosgw service to get rid of them.

On Mon, 20 May 2019 at 06:56, Li Wang <wangli1426@xxxxxxxxx> wrote:
Dear ceph community members,

We have a ceph cluster (mimic 13.2.4) with 7 nodes and 130+ OSDs. However, we observed over 70 millions active TCP connections on the radosgw host, which makes the radosgw very unstable.

After further investigation, we found most of the TCP connections on the radosgw are connected to OSDs.

May I ask what might be the possible reason causing the the massive amount of TCP connection? And is there anything configuration or tuning work that I can do to solve this issue?

Any suggestion is highly appreciated.

Regards,
Li Wang
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