determine healthy disk size

[spacejam]

during load testing, some etcd nodes crashed during log compaction with the following error:

2015/08/17 17:24:41 etcdserver: raft save state and entries error: write etcd_data/member/wal/000000000000001f-00000000007582d2.wal: no space left on device

As can be seen at etcd-io/etcd#3300, etcd can use double the required disk space to complete a compaction. We need to determine a safe size for most workloads to safely exist in the mesos sandbox.

[jdef]

i've seen my mesos cluster crash in fun ways too (and, not surprisingly,
docker). the joys of storage.. it's a problem for everyone.

i'm not sure what the state of disk reservation is in core, but mesos-go
just upgraded to the 0.23 protos (warning: has probably not seen very much
testing).

On Mon, Aug 17, 2015 at 8:35 PM, Tyler Neely notifications@github.com
wrote:

during load testing, some etcd nodes crashed during log compaction with
the following error:

2015/08/17 17:24:41 etcdserver: raft save state and entries error: write etcd_data/member/wal/000000000000001f-00000000007582d2.wal: no space left on device

As can be seen at etcd-io/etcd#3300
etcd-io/etcd#3300, etcd can use double the
required disk space to complete a compaction. We need to determine a safe
size for most workloads to safely exist in the mesos sandbox.

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#30.

[spacejam]

this is now fully configurable #33