Before this change, if go-carbon health check is enabled, when go-carbon cache.size overflows, buckytools
reset sync speed to 1 metrics-per-second and there is no way to adjust it. This is not ideal if a go-carbon
box always has cache.size limit over the safety threshold due to file system fragmentation or aging ssd.
With this change, it allows to have an adjustable minimum sync speed.
Before this change, if go-carbon health check is enabled, when go-carbon cache.size overflows, buckytools reset sync speed to 1 metrics-per-second and there is no way to adjust it. This is not ideal if a go-carbon box always has cache.size limit over the safety threshold due to file system fragmentation or aging ssd.
With this change, it allows to have an adjustable minimum sync speed.