Loading howto/ganeti.md +22 −0 Original line number Diff line number Diff line Loading @@ -824,6 +824,10 @@ that they should be distributed. A special configuration was done, below, to avoid that problem in the future. But as a workaround, instances can also be moved by hand and the cluster re-balanced. Also notice that `-X` does not show the job output, use `ganeti-watch-jobs` for that, in another terminal. See the [job inspection](#Job-inspection) section for more details on that. ### Redundant instances distribution Some instances are redundant across the cluster and should *not* end up Loading Loading @@ -946,6 +950,24 @@ IP. You can still do so with: gnt-instance modify --net -1:add,ip=116.202.120.174,network=gnt-fsn test01.torproject.org ## Job inspection Sometimes it can be useful to look at the active jobs. It might be, for example, that another user has queued a bunch of jobs in another terminal which you do not have access to, or some automated process did (Nagios, for example, runs `gnt-cluster verify` once in a while). Ganeti has this concept of "jobs" which can provide information about those. The command `gnt-job list` will show the entire job history, and `gnt-job list --running` will show running jobs. `gnt-job watch` can be used to watch a specific job. We have a wrapper called `ganeti-watch-jobs` which automatically shows the output of whatever job is currently running and exits when all jobs complete. This is particularly useful while [rebalancing the cluster](#Rebalancing-a-cluster) as `hbal -X` does not show the job output... ## Pager playbook ### I/O overload Loading Loading
howto/ganeti.md +22 −0 Original line number Diff line number Diff line Loading @@ -824,6 +824,10 @@ that they should be distributed. A special configuration was done, below, to avoid that problem in the future. But as a workaround, instances can also be moved by hand and the cluster re-balanced. Also notice that `-X` does not show the job output, use `ganeti-watch-jobs` for that, in another terminal. See the [job inspection](#Job-inspection) section for more details on that. ### Redundant instances distribution Some instances are redundant across the cluster and should *not* end up Loading Loading @@ -946,6 +950,24 @@ IP. You can still do so with: gnt-instance modify --net -1:add,ip=116.202.120.174,network=gnt-fsn test01.torproject.org ## Job inspection Sometimes it can be useful to look at the active jobs. It might be, for example, that another user has queued a bunch of jobs in another terminal which you do not have access to, or some automated process did (Nagios, for example, runs `gnt-cluster verify` once in a while). Ganeti has this concept of "jobs" which can provide information about those. The command `gnt-job list` will show the entire job history, and `gnt-job list --running` will show running jobs. `gnt-job watch` can be used to watch a specific job. We have a wrapper called `ganeti-watch-jobs` which automatically shows the output of whatever job is currently running and exits when all jobs complete. This is particularly useful while [rebalancing the cluster](#Rebalancing-a-cluster) as `hbal -X` does not show the job output... ## Pager playbook ### I/O overload Loading
