Examples with KvmHaChecker com.cloud.hypervisor.kvm.resource.KvmHaChecker used on opensource projects

Example 1 with KvmHaChecker

use of com.cloud.hypervisor.kvm.resource.KvmHaChecker in project cosmic by MissionCriticalCloud.

the class LibvirtFenceCommandWrapper method execute.

@Override
public Answer execute(final FenceCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final ExecutorService executors = Executors.newSingleThreadExecutor();
    final KvmHaMonitor monitor = libvirtComputingResource.getMonitor();
    final List<NfsStoragePool> pools = monitor.getStoragePools();
    /**
     * We can only safely fence off hosts when we use NFS On NFS primary storage pools hosts continuesly write a
     * heartbeat. Disable Fencing Off for hosts without NFS
     */
    if (pools.size() == 0) {
        final String logline = "No NFS storage pools found. No way to safely fence " + command.getVmName() + " on host " + command.getHostGuid();
        s_logger.warn(logline);
        return new FenceAnswer(command, false, logline);
    }
    final KvmHaChecker ha = new KvmHaChecker(pools, command.getHostIp());
    final Future<Boolean> future = executors.submit(ha);
    try {
        final Boolean result = future.get();
        if (result) {
            return new FenceAnswer(command, false, "Heart is still beating...");
        } else {
            return new FenceAnswer(command);
        }
    } catch (final InterruptedException e) {
        s_logger.warn("Unable to fence", e);
        return new FenceAnswer(command, false, e.getMessage());
    } catch (final ExecutionException e) {
        s_logger.warn("Unable to fence", e);
        return new FenceAnswer(command, false, e.getMessage());
    }
}

Example 2 with KvmHaChecker

use of com.cloud.hypervisor.kvm.resource.KvmHaChecker in project cosmic by MissionCriticalCloud.

the class LibvirtCheckOnHostCommandWrapper method execute.

@Override
public Answer execute(final CheckOnHostCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final ExecutorService executors = Executors.newSingleThreadExecutor();
    final KvmHaMonitor monitor = libvirtComputingResource.getMonitor();
    final List<NfsStoragePool> pools = monitor.getStoragePools();
    final HostTO host = command.getHost();
    final NetworkTO privateNetwork = host.getPrivateNetwork();
    final KvmHaChecker ha = new KvmHaChecker(pools, privateNetwork.getIp());
    final Future<Boolean> future = executors.submit(ha);
    try {
        final Boolean result = future.get();
        if (result) {
            return new Answer(command, false, "Heart is still beating...");
        } else {
            return new Answer(command);
        }
    } catch (final InterruptedException e) {
        return new Answer(command, false, "can't get status of host:");
    } catch (final ExecutionException e) {
        return new Answer(command, false, "can't get status of host:");
    }
}

Example 3 with KvmHaChecker

use of com.cloud.hypervisor.kvm.resource.KvmHaChecker in project cloudstack by apache.

the class LibvirtCheckOnHostCommandWrapper method execute.

@Override
public Answer execute(final CheckOnHostCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final ExecutorService executors = Executors.newSingleThreadExecutor();
    final KVMHAMonitor monitor = libvirtComputingResource.getMonitor();
    final List<NfsStoragePool> pools = monitor.getStoragePools();
    final HostTO host = command.getHost();
    final NetworkTO privateNetwork = host.getPrivateNetwork();
    final KVMHAChecker ha = new KVMHAChecker(pools, privateNetwork.getIp());
    final Future<Boolean> future = executors.submit(ha);
    try {
        final Boolean result = future.get();
        if (result) {
            return new Answer(command, false, "Heart is beating...");
        } else {
            return new Answer(command);
        }
    } catch (final InterruptedException e) {
        return new Answer(command, false, "CheckOnHostCommand: can't get status of host: InterruptedException");
    } catch (final ExecutionException e) {
        return new Answer(command, false, "CheckOnHostCommand: can't get status of host: ExecutionException");
    }
}

Example 4 with KvmHaChecker

use of com.cloud.hypervisor.kvm.resource.KvmHaChecker in project cloudstack by apache.

the class LibvirtFenceCommandWrapper method execute.

@Override
public Answer execute(final FenceCommand command, final LibvirtComputingResource libvirtComputingResource) {
    final ExecutorService executors = Executors.newSingleThreadExecutor();
    final KVMHAMonitor monitor = libvirtComputingResource.getMonitor();
    final List<NfsStoragePool> pools = monitor.getStoragePools();
    /**
     * We can only safely fence off hosts when we use NFS
     * On NFS primary storage pools hosts continuesly write
     * a heartbeat. Disable Fencing Off for hosts without NFS
     */
    if (pools.size() == 0) {
        String logline = "No NFS storage pools found. No way to safely fence " + command.getVmName() + " on host " + command.getHostGuid();
        s_logger.warn(logline);
        return new FenceAnswer(command, false, logline);
    }
    final KVMHAChecker ha = new KVMHAChecker(pools, command.getHostIp());
    final Future<Boolean> future = executors.submit(ha);
    try {
        final Boolean result = future.get();
        if (result) {
            return new FenceAnswer(command, false, "Heart is still beating...");
        } else {
            return new FenceAnswer(command);
        }
    } catch (final InterruptedException e) {
        s_logger.warn("Unable to fence", e);
        return new FenceAnswer(command, false, e.getMessage());
    } catch (final ExecutionException e) {
        s_logger.warn("Unable to fence", e);
        return new FenceAnswer(command, false, e.getMessage());
    }
}