Examples with GlobalLockImpl com.emc.storageos.db.client.impl.GlobalLockImpl used on opensource projects

Example 1 with GlobalLockImpl

use of com.emc.storageos.db.client.impl.GlobalLockImpl in project coprhd-controller by CoprHD.

the class GeoUpgradeVoter method isVdcOpLockHold.

/**
 * Check if any vdc op lock is hold - it means some vdc op is in progress
 *
 * @return True if a vdc op lock is hold
 * @throws Exception
 */
private boolean isVdcOpLockHold(StringBuffer msg) {
    try {
        // it doesn't matter if it's nodesvcshared or vdcshared
        GlobalLockImpl glock = new GlobalLockImpl((DbClientImpl) dbClient, GeoServiceClient.VDCOP_LOCK_NAME, GlobalLock.GL_Mode.GL_NodeSvcShared_MODE, GeoServiceClient.VDCOP_LOCK_TIMEOUT, VdcUtil.getLocalShortVdcId());
        String owner = glock.getOwner();
        boolean locked = owner != null && !owner.isEmpty();
        log.info("Vdc op lock is locked {}", locked);
        if (locked && msg != null && !StringUtils.isEmpty(glock.getErrorMessage())) {
            msg.append(glock.getErrorMessage());
        }
        return locked;
    } catch (Exception ex) {
        log.error("Unexpected exception during check vdc lock", ex);
        throw GeoException.fatals.accessGlobalLockFail();
    }
}

Example 2 with GlobalLockImpl

use of com.emc.storageos.db.client.impl.GlobalLockImpl in project coprhd-controller by CoprHD.

the class GlobalGCExecutorLoop method preGC.

@Override
protected boolean preGC() {
    log.info("PrepareGC for geo DB");
    dbClient.start();
    VdcUtil.setDbClient(dbClient);
    locked = false;
    try {
        String myVdcId = VdcUtil.getLocalShortVdcId();
        glock = new GlobalLockImpl((DbClientImpl) dbClient, GeoLockName, GlobalLock.GL_Mode.GL_VdcShared_MODE, 0, myVdcId);
        log.info("Set global VdcShared lock owner to {} vdcId={}", dbServiceId, myVdcId);
        glock.acquire(dbServiceId);
        locked = true;
    } catch (Exception e) {
        log.error("Failed to generate the global Geo GC lock e=", e);
    }
    log.info("Get global lock for Geo GC {}", locked);
    // get the lock
    return locked;
}

Example 3 with GlobalLockImpl

use of com.emc.storageos.db.client.impl.GlobalLockImpl in project coprhd-controller by CoprHD.

the class VdcOperationLockHelper method acquire.

public void acquire(String vdcShortId) {
    boolean lockAcquired = false;
    String lockErrMsg = null;
    GlobalLockImpl glock = null;
    try {
        log.info("try to acquire lock for vdc operation {}", vdcShortId);
        glock = new GlobalLockImpl(dbClient, GLOBAL_LOCK, GlobalLock.GL_Mode.GL_NodeSvcShared_MODE, GLOBAL_LOCK_TIMEOUT, VdcUtil.getLocalShortVdcId());
        if (glock.acquire(serviceInfo.getId())) {
            lockAcquired = true;
        } else {
            lockErrMsg = glock.getErrorMessage();
            if (StringUtils.isEmpty(lockErrMsg)) {
                lockErrMsg = "Could not acquire global lock for vdc operation";
            }
        }
    } catch (Exception e) {
        if (glock == null || StringUtils.isEmpty(glock.getErrorMessage())) {
            lockErrMsg = "Could not acquire global lock for vdc operation";
        } else {
            lockErrMsg = glock.getErrorMessage();
        }
        log.error(e.getMessage(), e);
    }
    if (!lockAcquired) {
        throw GeoException.fatals.acquireLockFail(vdcShortId, lockErrMsg);
    }
}

Example 4 with GlobalLockImpl

use of com.emc.storageos.db.client.impl.GlobalLockImpl in project coprhd-controller by CoprHD.

the class VdcOperationLockHelper method release.

public void release(String vdcShortId) {
    try {
        log.info("try to release lock for vdc operation {}", vdcShortId);
        GlobalLockImpl glock = new GlobalLockImpl(dbClient, GLOBAL_LOCK, GlobalLock.GL_Mode.GL_NodeSvcShared_MODE, GLOBAL_LOCK_TIMEOUT, VdcUtil.getLocalShortVdcId());
        glock.release(serviceInfo.getId(), true);
    } catch (Exception e) {
        // don't fail if we can't release the lock; it'll eventually time out
        log.error(e.getMessage(), e);
    }
}

Example 5 with GlobalLockImpl

use of com.emc.storageos.db.client.impl.GlobalLockImpl in project coprhd-controller by CoprHD.

the class DbGlobalLockTest method testNodesvcSharedGlobalLock.

@Test
public void testNodesvcSharedGlobalLock() throws Exception {
    // NodeSvcShared MODE
    _logger.info("Starting node/svc shared global lock test");
    DbClientImpl dbClient = (DbClientImpl) getDbClient();
    boolean flag;
    String vdc = "vdc1";
    // 1. basic test
    String lockname = "testlock1";
    GlobalLockImpl glock = new GlobalLockImpl(dbClient, lockname, GlobalLock.GL_Mode.GL_NodeSvcShared_MODE, 0, vdc);
    // acquire the lock
    flag = glock.acquire("vipr1");
    Assert.assertTrue(flag);
    // get lock owner
    String owner = null;
    owner = glock.getOwner();
    Assert.assertEquals(owner, "vdc1:vipr1");
    // re-enter the lock again with the same owner
    flag = glock.acquire("vipr1");
    Assert.assertTrue(flag);
    // try to acquire the lock with a different owner
    GlobalLockImpl glock2 = new GlobalLockImpl(dbClient, lockname, GlobalLock.GL_Mode.GL_NodeSvcShared_MODE, 0, vdc);
    flag = glock2.acquire("vipr2");
    Assert.assertFalse(flag);
    // try to release the lock with a different owner
    flag = glock2.release("vipr2");
    Assert.assertFalse(flag);
    // release the lock
    flag = glock.release("vipr1");
    Assert.assertTrue(flag);
    // 2. timeout test
    glock = new GlobalLockImpl(dbClient, lockname, GlobalLock.GL_Mode.GL_NodeSvcShared_MODE, 3000, vdc);
    // acquire the lock
    flag = glock.acquire("vipr1");
    Assert.assertTrue(flag);
    // try to acquire the lock with a different owner
    glock2 = new GlobalLockImpl(dbClient, lockname, GlobalLock.GL_Mode.GL_NodeSvcShared_MODE, 3000, vdc);
    flag = glock2.acquire("vipr2");
    Assert.assertFalse(flag);
    // acquire the lock (expired) again with a different owner
    Thread.sleep(3000);
    flag = glock2.acquire("vipr2");
    Assert.assertTrue(flag);
    // try to release with original owner
    flag = glock.release("vipr1");
    Assert.assertFalse(flag);
    // release with current owner
    flag = glock2.release("vipr2");
    Assert.assertTrue(flag);
}