Bug #16813
open"radosgw --show-config" and "radosgw-admin --show-config" do not display current configuration accurately
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Description
These switches seem to show a mixture of the current configuration and the default configuration depending on the setting:
[root@pistorergw2-cc38-h01 ceph]# grep frontends /etc/ceph/ceph.conf rgw frontends = civetweb port=8080 num_threads=50 [root@pistorergw2-cc38-h01 ceph]# radosgw-admin --show-config | grep frontends rgw_frontends = fastcgi, civetweb port=7480 [root@pistorergw2-cc38-h01 ceph]# radosgw --show-config | grep frontends rgw_frontends = fastcgi, civetweb port=7480 [root@pistorergw2-cc38-h01 ceph]# netstat -nat | egrep '0.0.0.0:7480|0.0.0.0:8080' tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN
This command displays the current configuration accurately
[root@pistorergw2-cc38-h01 ceph]# ceph --admin-daemon /var/run/ceph/`ls -Art ceph-client.* | tail -n 1` config show | grep frontends
"rgw_frontends": "civetweb port=8080 num_threads=50",
I'd like to recommend that the --show-config switch be removed from radosgw/radosgw-admin since they are redundant anyway.
Updated by Yan Jun over 7 years ago
Hi, We can get the accurate configuration by specifying rgw instance name (eg. -n client.rgw.us-east-1). since we may configure multiple instances in the conf file.
[root@tana75 ~]# radosgw-admin --show-config |grep frontends rgw_frontends = fastcgi, civetweb port=7480 [root@tana75 ~]# [root@tana75 ~]# radosgw-admin --show-config -n client.rgw.us-east-1 |grep frontends rgw_frontends = civetweb port=7480 [root@tana75 ~]# radosgw-admin --show-config -n client.rgw.us-east-2 |grep frontends rgw_frontends = civetweb port=81
Updated by James Saint-Rossy over 7 years ago
Hi Yan,
OK that works, but I don't see it documented anywhere. Can the `--show-config` be added to the `radosgw-admin` help as well as a note that the instance name should be specified. Also does a bare `--show-config` have any purpose or should the `-n` be required?
Updated by Yan Jun over 7 years ago
Hi James,
Actually, `--show-config` is a globally option that display the default code-level configurations and the `[global]` section in conf file. It's not just for `radosgw-admin`, other ceph cli commands (eg. ceph,ceph-mon,ceph-osd...) could also use it, maybe we sould document it. The only thing is how did you know this option since you haven't seen it documented anywhere.