Examples with InterProcessLock org.apache.curator.framework.recipes.locks.InterProcessLock used on opensource projects

Example 51 with InterProcessLock

use of org.apache.curator.framework.recipes.locks.InterProcessLock in project coprhd-controller by CoprHD.

the class VdcManager method enableIpsec.

private void enableIpsec() throws Exception {
    InterProcessLock lock = null;
    try {
        lock = coordinator.getCoordinatorClient().getSiteLocalLock("ipseclock");
        lock.acquire();
        log.info("Acquired the lock {}", "ipseclock");
        String preSharedKey = ipsecConfig.getPreSharedKeyFromZK();
        if (StringUtil.isBlank(preSharedKey)) {
            log.info("No pre shared key in zk, generate a new key");
            ipsecMgr.rotateKey(true);
        } else {
            log.info("First ipsec key found in zk. No need to regenerate it");
        }
    } finally {
        if (lock != null) {
            lock.release();
        }
    }
}

Example 52 with InterProcessLock

use of org.apache.curator.framework.recipes.locks.InterProcessLock in project nakadi by zalando.

the class TimelineSyncImpl method runLocked.

private void runLocked(final Runnable action) {
    try {
        Exception releaseException = null;
        final InterProcessLock lock = new InterProcessSemaphoreMutex(zooKeeperHolder.get(), ROOT_PATH + "/lock");
        lock.acquire();
        try {
            action.run();
        } finally {
            try {
                lock.release();
            } catch (final Exception ex) {
                LOG.error("Failed to release lock", ex);
                releaseException = ex;
            }
        }
        if (null != releaseException) {
            throw releaseException;
        }
    } catch (final RuntimeException ex) {
        throw ex;
    } catch (final Exception ex) {
        throw new RuntimeException(ex);
    }
}

Example 53 with InterProcessLock

use of org.apache.curator.framework.recipes.locks.InterProcessLock in project coprhd-controller by CoprHD.

the class GarbageCollectionExecutorLoop method run.

@Override
public void run() {
    InterProcessLock lock = null;
    try {
        lock = getLockForGC();
        if (lock == null) {
            log.info("Can't get GC lock, wait for next run.");
            return;
        }
    } catch (Exception e) {
        log.warn("Failed to acquire ZK lock for GC", e);
        return;
    }
    long beginTime = System.currentTimeMillis();
    log.info("Begin to GC...");
    try {
        if (!preGC()) {
            // can't run GC now
            return;
        }
        int maxLevels = dependencyTracker.getLevels();
        for (int i = 0; i < maxLevels; i++) {
            log.info("Now processing level {}", i);
            List<Class<? extends DataObject>> list = new ArrayList(dependencyTracker.getTypesInLevel(i));
            Collections.shuffle(list);
            for (Class<? extends DataObject> clazz : list) {
                if (canRunGCOnClass(clazz)) {
                    GarbageCollectionRunnable gc = genGCTask(clazz);
                    futures.add(executorPool.submit(gc));
                }
            }
            waitTasksToComplete();
        }
    } finally {
        try {
            postGC();
        } finally {
            releaseLockForGC(lock);
            log.info("GC is finished, consume time: {} seconds", (System.currentTimeMillis() - beginTime) / 1000);
        }
    }
}

Example 54 with InterProcessLock

use of org.apache.curator.framework.recipes.locks.InterProcessLock in project coprhd-controller by CoprHD.

the class DbServiceImpl method getLock.

private InterProcessLock getLock(String name) throws Exception {
    InterProcessLock lock = null;
    while (true) {
        try {
            lock = _coordinator.getSiteLocalLock(name);
            lock.acquire();
            // got lock
            break;
        } catch (Exception e) {
            if (_coordinator.isConnected()) {
                throw e;
            }
        }
    }
    return lock;
}

Example 55 with InterProcessLock

use of org.apache.curator.framework.recipes.locks.InterProcessLock in project coprhd-controller by CoprHD.

the class MigrationHandlerImpl method getLock.

private InterProcessLock getLock(String name) throws Exception {
    InterProcessLock lock = null;
    while (true) {
        try {
            lock = coordinator.getLock(name);
            lock.acquire();
            // got lock
            break;
        } catch (Exception e) {
            if (coordinator.isConnected()) {
                throw e;
            }
        }
    }
    return lock;
}