ceph.conf template has defaults that override better defaults in jewel #693
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perhaps its better to have 'no tuning' which in general doesn't set any defaults for any section and let the user do all the setting. |
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@jdurgin thanks for raising this one up. Perhaps I can do this for the next release of ceph-ansible and then add a major warning for all the running users. |
leseb
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Apr 7, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
leseb
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Apr 7, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
leseb
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Apr 7, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
leseb
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Apr 19, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
leseb
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Apr 28, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
leseb
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Apr 28, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
leseb
added a commit
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Apr 28, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
leseb
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May 10, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]>
alfredodeza
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Jul 15, 2016
Since ##461 we have been having the ability to override ceph default options. Previously we had to add a new line in the template and then another variable as well. Doing a PR for one option was such a pain. As a result, we now have tons of options that we need to maintain across all the ceph version, yet another painful thing to do. This commit removes all the ceph options so they are handled by ceph directly. If you want to add a new option, feel free to to use the `ceph_conf_overrides` variable of your `group_vars/all`. Risks, for those who have been managing their ceph using ceph-ansible this is not a trivial change as it will trigger a change in your `ceph.conf` and then restart all your ceph services. Moreover if you did some specific tweaks as well, prior to run ansible you should update the `ceph_conf_overrides` variable to reflect your previous changes. To avoid service restart, you need to know a bit of ansible for this, but generally the idea would be to run ansible on a dummy host to generate the ceph.conf, then scp this file to all your ceph hosts and you should be good. Closes: #693 Signed-off-by: Sébastien Han <[email protected]> (cherry picked from commit 47860a8)
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There are a bunch of tunings and settings in ceph.conf that make sense to apply to older version of ceph, but are replaced by better defaults in jewel. As they change, it would be better to let the newer ceph defaults come into effect, instead of always overriding them in ceph.conf.
It would be great to have a more minimal ceph.conf for jewel and later - perhaps just via a 'no tuning' option - that does not put any of 'rbd default', 'rbd cache', 'osd *', 'filestore *', 'debug *' settings into ceph.conf (with the exception of setup config, like journal size and mkfs options if those are still needed).
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