Examples with RegisterLease alluxio.wire.RegisterLease used on opensource projects

Example 1 with RegisterLease

use of alluxio.wire.RegisterLease in project alluxio by Alluxio.

the class RegisterLeaseManager method tryAcquireLease.

// If the lease exists, it will be returned
Optional<RegisterLease> tryAcquireLease(GetRegisterLeasePRequest request) {
    long workerId = request.getWorkerId();
    if (mActiveLeases.containsKey(workerId)) {
        RegisterLease lease = mActiveLeases.get(workerId);
        LOG.info("Found existing lease for worker {}: {}", workerId, lease);
        return Optional.of(lease);
    }
    // If the JVM space does not allow, reject the request
    if (mJvmChecker != null && !mJvmChecker.reviewLeaseRequest(request)) {
        return Optional.empty();
    }
    // Check for expired leases here instead of having a separate thread.
    // Therefore the recycle is lazy.
    // If no other worker is requesting for a lease, a worker holding an expired lease
    // will still be admitted.
    tryRecycleLease();
    if (mSemaphore.tryAcquire()) {
        RegisterLease lease = new RegisterLease(LEASE_TTL_MS);
        mActiveLeases.put(workerId, lease);
        LOG.info("Granted lease to worker {}", workerId);
        return Optional.of(lease);
    }
    return Optional.empty();
}

Example 2 with RegisterLease

use of alluxio.wire.RegisterLease in project alluxio by Alluxio.

the class RegisterLeaseManagerTest method recycleExpiredLease.

@Test
public void recycleExpiredLease() {
    // allocate two leases
    GetRegisterLeasePRequest request1 = GetRegisterLeasePRequest.newBuilder().setWorkerId(WORKER1_ID).setBlockCount(0).build();
    Optional<RegisterLease> lease1 = mLeaseManager.tryAcquireLease(request1);
    GetRegisterLeasePRequest request2 = GetRegisterLeasePRequest.newBuilder().setWorkerId(WORKER2_ID).setBlockCount(0).build();
    Optional<RegisterLease> lease2 = mLeaseManager.tryAcquireLease(request2);
    assertTrue(lease1.isPresent());
    assertTrue(lease2.isPresent());
    assertTrue(mLeaseManager.hasLease(WORKER1_ID));
    assertTrue(mLeaseManager.hasLease(WORKER2_ID));
    // wait for expiration
    SleepUtils.sleepMs(5000);
    // allocate two more leases
    GetRegisterLeasePRequest request3 = GetRegisterLeasePRequest.newBuilder().setWorkerId(WORKER3_ID).setBlockCount(500_000).build();
    Optional<RegisterLease> lease3 = mLeaseManager.tryAcquireLease(request3);
    GetRegisterLeasePRequest request4 = GetRegisterLeasePRequest.newBuilder().setWorkerId(WORKER4_ID).setBlockCount(100_000).build();
    Optional<RegisterLease> lease4 = mLeaseManager.tryAcquireLease(request4);
    // The 2 old leases should be recycled
    assertFalse(mLeaseManager.hasLease(WORKER1_ID));
    assertFalse(mLeaseManager.hasLease(WORKER2_ID));
    assertTrue(lease3.isPresent());
    assertTrue(lease4.isPresent());
    assertTrue(mLeaseManager.hasLease(WORKER3_ID));
    assertTrue(mLeaseManager.hasLease(WORKER4_ID));
    // Acquiring one more lease before existing ones expire will be blocked
    GetRegisterLeasePRequest shouldWait = GetRegisterLeasePRequest.newBuilder().setWorkerId(5L).setBlockCount(100_000).build();
    Optional<RegisterLease> empty = mLeaseManager.tryAcquireLease(shouldWait);
    assertFalse(empty.isPresent());
    assertFalse(mLeaseManager.hasLease(5L));
}

Example 3 with RegisterLease

use of alluxio.wire.RegisterLease in project alluxio by Alluxio.

the class RegisterLeaseManagerTest method findExistingLease.

@Test
public void findExistingLease() {
    GetRegisterLeasePRequest request1 = GetRegisterLeasePRequest.newBuilder().setWorkerId(WORKER1_ID).setBlockCount(0).build();
    Optional<RegisterLease> lease1 = mLeaseManager.tryAcquireLease(request1);
    assertTrue(lease1.isPresent());
    assertTrue(mLeaseManager.hasLease(WORKER1_ID));
    // Same worker requesting for an existing lease
    Optional<RegisterLease> sameLease = mLeaseManager.tryAcquireLease(request1);
    assertTrue(sameLease.isPresent());
    assertTrue(mLeaseManager.hasLease(WORKER1_ID));
    // The same lease is granted so there should be another vacancy
    GetRegisterLeasePRequest request2 = GetRegisterLeasePRequest.newBuilder().setWorkerId(WORKER2_ID).setBlockCount(0).build();
    Optional<RegisterLease> lease2 = mLeaseManager.tryAcquireLease(request2);
    assertTrue(lease2.isPresent());
    assertTrue(mLeaseManager.hasLease(WORKER2_ID));
    // The lease for worker 1 is not recycled
    assertTrue(mLeaseManager.hasLease(WORKER1_ID));
    // Now all token have been given out, new ones will have to wait
    GetRegisterLeasePRequest shouldWait = GetRegisterLeasePRequest.newBuilder().setWorkerId(5L).setBlockCount(100_000).build();
    Optional<RegisterLease> empty = mLeaseManager.tryAcquireLease(shouldWait);
    assertFalse(empty.isPresent());
    assertFalse(mLeaseManager.hasLease(5L));
}

Example 4 with RegisterLease

use of alluxio.wire.RegisterLease in project alluxio by Alluxio.

the class RegisterLeaseManagerTest method acquireVerifyRelease.

@Test
public void acquireVerifyRelease() {
    GetRegisterLeasePRequest request = GetRegisterLeasePRequest.newBuilder().setWorkerId(WORKER1_ID).setBlockCount(0).build();
    Optional<RegisterLease> lease = mLeaseManager.tryAcquireLease(request);
    assertTrue(lease.isPresent());
    assertTrue(mLeaseManager.hasLease(WORKER1_ID));
    mLeaseManager.releaseLease(WORKER1_ID);
    assertFalse(mLeaseManager.hasLease(WORKER1_ID));
}

Example 5 with RegisterLease

use of alluxio.wire.RegisterLease in project alluxio by Alluxio.

the class BlockMasterWorkerServiceHandlerTest method registerLeaseExpired.

@Test
public void registerLeaseExpired() {
    long workerId = mBlockMaster.getWorkerId(NET_ADDRESS_1);
    // Prepare LocationBlockIdListEntry objects
    BlockStoreLocation loc = new BlockStoreLocation("MEM", 0);
    BlockStoreLocationProto locationProto = BlockStoreLocationProto.newBuilder().setTierAlias(loc.tierAlias()).setMediumType(loc.mediumType()).build();
    BlockIdList blockIdList1 = BlockIdList.newBuilder().addAllBlockId(ImmutableList.of(1L, 2L)).build();
    LocationBlockIdListEntry listEntry1 = LocationBlockIdListEntry.newBuilder().setKey(locationProto).setValue(blockIdList1).build();
    // Prepare a lease
    GetRegisterLeasePRequest leaseRequest = GetRegisterLeasePRequest.newBuilder().setWorkerId(workerId).setBlockCount(blockIdList1.getBlockIdCount()).build();
    Optional<RegisterLease> lease = mBlockMaster.tryAcquireRegisterLease(leaseRequest);
    assertTrue(lease.isPresent());
    // Sleep for a while so that the lease expires
    SleepUtils.sleepMs(5000);
    // The lease is recycled and taken away
    GetRegisterLeasePRequest newLeaseRequest = GetRegisterLeasePRequest.newBuilder().setWorkerId(workerId + 1).setBlockCount(blockIdList1.getBlockIdCount()).build();
    Optional<RegisterLease> newLease = mBlockMaster.tryAcquireRegisterLease(newLeaseRequest);
    assertTrue(newLease.isPresent());
    RegisterWorkerPRequest request = RegisterWorkerPRequest.newBuilder().setWorkerId(workerId).addStorageTiers("MEM").putTotalBytesOnTiers("MEM", 1000L).putUsedBytesOnTiers("MEM", 0L).setOptions(RegisterWorkerPOptions.getDefaultInstance()).addCurrentBlocks(listEntry1).build();
    // Noop response observer
    Queue<Throwable> errors = new ConcurrentLinkedDeque<>();
    StreamObserver<RegisterWorkerPResponse> noopResponseObserver = new StreamObserver<RegisterWorkerPResponse>() {

        @Override
        public void onNext(RegisterWorkerPResponse response) {
        }

        @Override
        public void onError(Throwable t) {
            errors.offer(t);
        }

        @Override
        public void onCompleted() {
        }
    };
    mHandler.registerWorker(request, noopResponseObserver);
    assertEquals(1, errors.size());
    Throwable t = errors.poll();
    Assert.assertThat(t.getMessage(), containsString("does not have a lease or the lease has expired."));
    mBlockMaster.releaseRegisterLease(workerId + 1);
}