Package org.apache.druid.java.util.metrics.cgroups

Interface CgroupDiscoverer

All Known Implementing Classes:
ProcCgroupDiscoverer, ProcCgroupV2Discoverer, ProcSelfCgroupDiscoverer
public interface CgroupDiscoverer

  • Method Details

    • discover

      Path discover(String cgroup)
      Returns a path for a specific cgroup. This path should contain the interesting cgroup files without further traversing needed.
      Parameters:
      cgroup - The cgroup
      Returns:
      The path that contains that cgroup's interesting bits.

    • getCpuMetrics

      Cpu.CpuMetrics getCpuMetrics()
      Gets CPU metrics (shares, quota, period, usage) appropriate for this cgroups version. Encapsulates the difference between v1 (cpu.shares, cpu.cfs_*) and v2 (cpu.weight, cpu.max).
      Returns:
      CPU metrics compatible with both cgroups v1 and v2

    • getCpuSetMetrics

      CpuSet.CpuSetMetric getCpuSetMetrics()
      Gets CPU set metrics (effective CPU list) appropriate for this cgroups version. Encapsulates the difference between v1 (cpuset.effective_cpus) and v2 (cpuset.cpus.effective).
      Returns:
      CPU set metrics compatible with both cgroups v1 and v2

    • getCgroupVersion

      CgroupVersion getCgroupVersion()