Example #1
0
func (c *client) AllocateContainers(requests []executor.AllocationRequest) ([]executor.AllocationFailure, error) {
	c.resourcesLock.Lock()
	defer c.resourcesLock.Unlock()

	logger := c.logger.Session("allocate-containers")
	failures := make([]executor.AllocationFailure, 0)

	remainingResources, err := c.remainingResources(logger)
	if err != nil {
		return nil, executor.ErrFailureToCheckSpace
	}

	for i := range requests {
		req := &requests[i]
		err := req.Validate()
		if err != nil {
			logger.Error("invalid-request", err)
			failures = append(failures, executor.NewAllocationFailure(req, err.Error()))
			continue
		}

		ok := remainingResources.Subtract(&req.Resource)
		if !ok {
			logger.Error("failed-to-allocate-container", executor.ErrInsufficientResourcesAvailable, lager.Data{"guid": req.Guid})
			failures = append(failures, executor.NewAllocationFailure(req, executor.ErrInsufficientResourcesAvailable.Error()))
			continue
		}

		_, err = c.allocationStore.Allocate(logger, req)
		if err != nil {
			logger.Error("failed-to-allocate-container", err, lager.Data{"guid": req.Guid})
			failures = append(failures, executor.NewAllocationFailure(req, err.Error()))
			continue
		}
	}

	return failures, nil
}
Example #2
0
			Context("when required memory is more than executor resource limits", func() {
				BeforeEach(func() {
					requests = []executor.AllocationRequest{
						newAllocationRequest("guid-1", 512, defaultDiskMB),
						newAllocationRequest("guid-2", 512, defaultDiskMB),
						newAllocationRequest("guid-3", defaultMemoryMB, defaultDiskMB),
					}
				})

				It("should allocate first few containers that can fit the available resources", func() {
					failures, err := depotClient.AllocateContainers(requests)
					Expect(err).NotTo(HaveOccurred())

					Expect(failures).To(HaveLen(1))
					expectedFailure := executor.NewAllocationFailure(&requests[2], executor.ErrInsufficientResourcesAvailable.Error())
					Expect(failures[0]).To(BeEquivalentTo(expectedFailure))

					allocatedContainers := allocationStore.List()
					Expect(allocatedContainers).To(HaveLen(len(requests) - 1))

					allocatedContainersMap := convertSliceToMap(allocatedContainers)
					Expect(allocatedContainersMap).To(HaveLen(len(requests) - 1))
					Expect(allocatedContainersMap["guid-1"].State).To(Equal(executor.StateReserved))
					Expect(allocatedContainersMap["guid-2"].State).To(Equal(executor.StateReserved))
					Expect(allocatedContainersMap).NotTo(HaveKey("guid-3"))
				})
			})

			Context("when required disk space is more than executor resource limits", func() {
				BeforeEach(func() {
Example #3
0
						Expect(err).NotTo(HaveOccurred())
						Expect(failedWork).To(BeZero())
					})
				})

				Context("when a container fails to be allocated", func() {
					BeforeEach(func() {
						resource := executor.NewResource(int(lrpAuctionOne.MemoryMB), int(lrpAuctionOne.DiskMB), "rootfs")
						tags := executor.Tags{}
						tags[rep.ProcessGuidTag] = lrpAuctionOne.ProcessGuid
						allocationRequest := executor.NewAllocationRequest(
							rep.LRPContainerGuid(lrpAuctionOne.ProcessGuid, expectedGuidOne),
							&resource,
							tags,
						)
						allocationFailure := executor.NewAllocationFailure(&allocationRequest, commonErr.Error())
						client.AllocateContainersReturns([]executor.AllocationFailure{allocationFailure}, nil)
					})

					It("marks the corresponding LRP Auctions as failed", func() {
						failedWork, err := cellRep.Perform(rep.Work{LRPs: []rep.LRP{lrpAuctionOne, lrpAuctionTwo}})
						Expect(err).NotTo(HaveOccurred())
						Expect(failedWork.LRPs).To(ConsistOf(lrpAuctionOne))
					})
				})
			})

			Context("when an LRP Auction specifies a preloaded RootFSes for which it cannot determine a RootFS path", func() {
				BeforeEach(func() {
					lrpAuctionOne.RootFs = linuxRootFSURL
					lrpAuctionTwo.RootFs = "preloaded:not-on-cell"