diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ResourceUtilization.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ResourceUtilization.java index 5f52f85..2ae4872 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ResourceUtilization.java +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ResourceUtilization.java @@ -44,6 +44,14 @@ public static ResourceUtilization newInstance(int pmem, int vmem, float cpu) { return utilization; } + @Public + @Unstable + public static ResourceUtilization newInstance( + ResourceUtilization resourceUtil) { + return newInstance(resourceUtil.getPhysicalMemory(), + resourceUtil.getVirtualMemory(), resourceUtil.getCPU()); + } + /** * Get used virtual memory. * @@ -147,4 +155,18 @@ public void addTo(int pmem, int vmem, float cpu) { this.setVirtualMemory(this.getVirtualMemory() + vmem); this.setCPU(this.getCPU() + cpu); } + + /** + * Subtract utilization from the current one. + * @param pmem Physical memory to be subtracted. + * @param vmem Virtual memory to be subtracted. + * @param cpu CPU utilization to be subtracted. + */ + @Public + @Unstable + public void subtractFrom(int pmem, int vmem, float cpu) { + this.setPhysicalMemory(this.getPhysicalMemory() - pmem); + this.setVirtualMemory(this.getVirtualMemory() - vmem); + this.setCPU(this.getCPU() - cpu); + } } \ No newline at end of file