Examples with Rados com.ceph.rados.Rados used on opensource projects

Example 1 with Rados

use of com.ceph.rados.Rados in project YCSB by brianfrankcooper.

the class RadosClient method init.

public void init() throws DBException {
    Properties props = getProperties();
    String configfile = props.getProperty(CONFIG_FILE_PROPERTY);
    if (configfile == null) {
        configfile = CONFIG_FILE_DEFAULT;
    }
    String id = props.getProperty(ID_PROPERTY);
    if (id == null) {
        id = ID_DEFAULT;
    }
    String pool = props.getProperty(POOL_PROPERTY);
    if (pool == null) {
        pool = POOL_DEFAULT;
    }
    // try {
    // } catch (UnsatisfiedLinkError e) {
    //   throw new DBException("RADOS library is not loaded.");
    // }
    rados = new Rados(id);
    try {
        rados.confReadFile(new File(configfile));
        rados.connect();
        ioctx = rados.ioCtxCreate(pool);
    } catch (RadosException e) {
        throw new DBException(e.getMessage() + ": " + e.getReturnValue());
    }
    isInited = true;
}

Example 2 with Rados

use of com.ceph.rados.Rados in project cloudstack by apache.

the class KVMStorageProcessor method deleteSnapshot.

@Override
public Answer deleteSnapshot(final DeleteCommand cmd) {
    String snap_full_name = "";
    try {
        SnapshotObjectTO snapshotTO = (SnapshotObjectTO) cmd.getData();
        PrimaryDataStoreTO primaryStore = (PrimaryDataStoreTO) snapshotTO.getDataStore();
        VolumeObjectTO volume = snapshotTO.getVolume();
        KVMStoragePool primaryPool = storagePoolMgr.getStoragePool(primaryStore.getPoolType(), primaryStore.getUuid());
        KVMPhysicalDisk disk = storagePoolMgr.getPhysicalDisk(primaryStore.getPoolType(), primaryStore.getUuid(), volume.getPath());
        String snapshotFullPath = snapshotTO.getPath();
        String snapshotName = snapshotFullPath.substring(snapshotFullPath.lastIndexOf("/") + 1);
        snap_full_name = disk.getName() + "@" + snapshotName;
        if (primaryPool.getType() == StoragePoolType.RBD) {
            Rados r = radosConnect(primaryPool);
            IoCTX io = r.ioCtxCreate(primaryPool.getSourceDir());
            Rbd rbd = new Rbd(io);
            RbdImage image = rbd.open(disk.getName());
            try {
                s_logger.info("Attempting to remove RBD snapshot " + snap_full_name);
                if (image.snapIsProtected(snapshotName)) {
                    s_logger.debug("Unprotecting RBD snapshot " + snap_full_name);
                    image.snapUnprotect(snapshotName);
                }
                image.snapRemove(snapshotName);
                s_logger.info("Snapshot " + snap_full_name + " successfully removed from " + primaryPool.getType().toString() + "  pool.");
            } catch (RbdException e) {
                s_logger.error("Failed to remove snapshot " + snap_full_name + ", with exception: " + e.toString() + ", RBD error: " + ErrorCode.getErrorMessage(e.getReturnValue()));
            } finally {
                rbd.close(image);
                r.ioCtxDestroy(io);
            }
        } else if (primaryPool.getType() == StoragePoolType.NetworkFilesystem || primaryPool.getType() == StoragePoolType.Filesystem) {
            s_logger.info(String.format("Deleting snapshot (id=%s, name=%s, path=%s, storage type=%s) on primary storage", snapshotTO.getId(), snapshotTO.getName(), snapshotTO.getPath(), primaryPool.getType()));
            deleteSnapshotViaManageSnapshotScript(snapshotName, disk);
        } else {
            s_logger.warn("Operation not implemented for storage pool type of " + primaryPool.getType().toString());
            throw new InternalErrorException("Operation not implemented for storage pool type of " + primaryPool.getType().toString());
        }
        return new Answer(cmd, true, "Snapshot " + snap_full_name + " removed successfully.");
    } catch (RadosException e) {
        s_logger.error("Failed to remove snapshot " + snap_full_name + ", with exception: " + e.toString() + ", RBD error: " + ErrorCode.getErrorMessage(e.getReturnValue()));
        return new Answer(cmd, false, "Failed to remove snapshot " + snap_full_name);
    } catch (RbdException e) {
        s_logger.error("Failed to remove snapshot " + snap_full_name + ", with exception: " + e.toString() + ", RBD error: " + ErrorCode.getErrorMessage(e.getReturnValue()));
        return new Answer(cmd, false, "Failed to remove snapshot " + snap_full_name);
    } catch (Exception e) {
        s_logger.error("Failed to remove snapshot " + snap_full_name + ", with exception: " + e.toString());
        return new Answer(cmd, false, "Failed to remove snapshot " + snap_full_name);
    }
}

Example 3 with Rados

use of com.ceph.rados.Rados in project cloudstack by apache.

the class KVMStorageProcessor method createRBDvolumeFromRBDSnapshot.

private KVMPhysicalDisk createRBDvolumeFromRBDSnapshot(KVMPhysicalDisk volume, String snapshotName, String name, PhysicalDiskFormat format, long size, KVMStoragePool destPool, int timeout) {
    KVMStoragePool srcPool = volume.getPool();
    KVMPhysicalDisk disk = null;
    String newUuid = name;
    disk = new KVMPhysicalDisk(destPool.getSourceDir() + "/" + newUuid, newUuid, destPool);
    disk.setFormat(format);
    disk.setSize(size > volume.getVirtualSize() ? size : volume.getVirtualSize());
    disk.setVirtualSize(size > volume.getVirtualSize() ? size : disk.getSize());
    try {
        Rados r = new Rados(srcPool.getAuthUserName());
        r.confSet("mon_host", srcPool.getSourceHost() + ":" + srcPool.getSourcePort());
        r.confSet("key", srcPool.getAuthSecret());
        r.confSet("client_mount_timeout", "30");
        r.connect();
        IoCTX io = r.ioCtxCreate(srcPool.getSourceDir());
        Rbd rbd = new Rbd(io);
        RbdImage srcImage = rbd.open(volume.getName());
        List<RbdSnapInfo> snaps = srcImage.snapList();
        boolean snapFound = false;
        for (RbdSnapInfo snap : snaps) {
            if (snapshotName.equals(snap.name)) {
                snapFound = true;
                break;
            }
        }
        if (!snapFound) {
            s_logger.debug(String.format("Could not find snapshot %s on RBD", snapshotName));
            return null;
        }
        srcImage.snapProtect(snapshotName);
        s_logger.debug(String.format("Try to clone snapshot %s on RBD", snapshotName));
        rbd.clone(volume.getName(), snapshotName, io, disk.getName(), LibvirtStorageAdaptor.RBD_FEATURES, 0);
        RbdImage diskImage = rbd.open(disk.getName());
        if (disk.getVirtualSize() > volume.getVirtualSize()) {
            diskImage.resize(disk.getVirtualSize());
        }
        diskImage.flatten();
        rbd.close(diskImage);
        srcImage.snapUnprotect(snapshotName);
        rbd.close(srcImage);
        r.ioCtxDestroy(io);
    } catch (RadosException | RbdException e) {
        s_logger.error(String.format("Failed due to %s", e.getMessage()), e);
        disk = null;
    }
    return disk;
}

Example 4 with Rados

use of com.ceph.rados.Rados in project cloudstack by apache.

the class KVMStorageProcessor method radosConnect.

private Rados radosConnect(final KVMStoragePool primaryPool) throws RadosException {
    Rados r = new Rados(primaryPool.getAuthUserName());
    r.confSet(CEPH_MON_HOST, primaryPool.getSourceHost() + ":" + primaryPool.getSourcePort());
    r.confSet(CEPH_AUTH_KEY, primaryPool.getAuthSecret());
    r.confSet(CEPH_CLIENT_MOUNT_TIMEOUT, CEPH_DEFAULT_MOUNT_TIMEOUT);
    r.connect();
    s_logger.debug("Succesfully connected to Ceph cluster at " + r.confGet(CEPH_MON_HOST));
    return r;
}

Example 5 with Rados

use of com.ceph.rados.Rados in project cloudstack by apache.

the class LibvirtStorageAdaptor method createDiskFromTemplateOnRBD.

private KVMPhysicalDisk createDiskFromTemplateOnRBD(KVMPhysicalDisk template, String name, PhysicalDiskFormat format, Storage.ProvisioningType provisioningType, long size, KVMStoragePool destPool, int timeout) {
    /*
            With RBD you can't run qemu-img convert with an existing RBD image as destination
            qemu-img will exit with the error that the destination already exists.
            So for RBD we don't create the image, but let qemu-img do that for us.

            We then create a KVMPhysicalDisk object that we can return
         */
    KVMStoragePool srcPool = template.getPool();
    KVMPhysicalDisk disk = null;
    String newUuid = name;
    format = PhysicalDiskFormat.RAW;
    disk = new KVMPhysicalDisk(destPool.getSourceDir() + "/" + newUuid, newUuid, destPool);
    disk.setFormat(format);
    if (size > template.getVirtualSize()) {
        disk.setSize(size);
        disk.setVirtualSize(size);
    } else {
        // leave these as they were if size isn't applicable
        disk.setSize(template.getVirtualSize());
        disk.setVirtualSize(disk.getSize());
    }
    QemuImg qemu = new QemuImg(timeout);
    QemuImgFile srcFile;
    QemuImgFile destFile = new QemuImgFile(KVMPhysicalDisk.RBDStringBuilder(destPool.getSourceHost(), destPool.getSourcePort(), destPool.getAuthUserName(), destPool.getAuthSecret(), disk.getPath()));
    destFile.setFormat(format);
    if (srcPool.getType() != StoragePoolType.RBD) {
        srcFile = new QemuImgFile(template.getPath(), template.getFormat());
        try {
            qemu.convert(srcFile, destFile);
        } catch (QemuImgException | LibvirtException e) {
            s_logger.error("Failed to create " + disk.getPath() + " due to a failed executing of qemu-img: " + e.getMessage());
        }
    } else {
        try {
            if ((srcPool.getSourceHost().equals(destPool.getSourceHost())) && (srcPool.getSourceDir().equals(destPool.getSourceDir()))) {
                /* We are on the same Ceph cluster, but we require RBD format 2 on the source image */
                s_logger.debug("Trying to perform a RBD clone (layering) since we are operating in the same storage pool");
                Rados r = new Rados(srcPool.getAuthUserName());
                r.confSet("mon_host", srcPool.getSourceHost() + ":" + srcPool.getSourcePort());
                r.confSet("key", srcPool.getAuthSecret());
                r.confSet("client_mount_timeout", "30");
                r.connect();
                s_logger.debug("Succesfully connected to Ceph cluster at " + r.confGet("mon_host"));
                IoCTX io = r.ioCtxCreate(srcPool.getSourceDir());
                Rbd rbd = new Rbd(io);
                RbdImage srcImage = rbd.open(template.getName());
                if (srcImage.isOldFormat()) {
                    /* The source image is RBD format 1, we have to do a regular copy */
                    s_logger.debug("The source image " + srcPool.getSourceDir() + "/" + template.getName() + " is RBD format 1. We have to perform a regular copy (" + toHumanReadableSize(disk.getVirtualSize()) + " bytes)");
                    rbd.create(disk.getName(), disk.getVirtualSize(), RBD_FEATURES, rbdOrder);
                    RbdImage destImage = rbd.open(disk.getName());
                    s_logger.debug("Starting to copy " + srcImage.getName() + " to " + destImage.getName() + " in Ceph pool " + srcPool.getSourceDir());
                    rbd.copy(srcImage, destImage);
                    s_logger.debug("Finished copying " + srcImage.getName() + " to " + destImage.getName() + " in Ceph pool " + srcPool.getSourceDir());
                    rbd.close(destImage);
                } else {
                    s_logger.debug("The source image " + srcPool.getSourceDir() + "/" + template.getName() + " is RBD format 2. We will perform a RBD clone using snapshot " + rbdTemplateSnapName);
                    /* The source image is format 2, we can do a RBD snapshot+clone (layering) */
                    s_logger.debug("Checking if RBD snapshot " + srcPool.getSourceDir() + "/" + template.getName() + "@" + rbdTemplateSnapName + " exists prior to attempting a clone operation.");
                    List<RbdSnapInfo> snaps = srcImage.snapList();
                    s_logger.debug("Found " + snaps.size() + " snapshots on RBD image " + srcPool.getSourceDir() + "/" + template.getName());
                    boolean snapFound = false;
                    for (RbdSnapInfo snap : snaps) {
                        if (rbdTemplateSnapName.equals(snap.name)) {
                            s_logger.debug("RBD snapshot " + srcPool.getSourceDir() + "/" + template.getName() + "@" + rbdTemplateSnapName + " already exists.");
                            snapFound = true;
                            break;
                        }
                    }
                    if (!snapFound) {
                        s_logger.debug("Creating RBD snapshot " + rbdTemplateSnapName + " on image " + name);
                        srcImage.snapCreate(rbdTemplateSnapName);
                        s_logger.debug("Protecting RBD snapshot " + rbdTemplateSnapName + " on image " + name);
                        srcImage.snapProtect(rbdTemplateSnapName);
                    }
                    rbd.clone(template.getName(), rbdTemplateSnapName, io, disk.getName(), RBD_FEATURES, rbdOrder);
                    s_logger.debug("Succesfully cloned " + template.getName() + "@" + rbdTemplateSnapName + " to " + disk.getName());
                    /* We also need to resize the image if the VM was deployed with a larger root disk size */
                    if (disk.getVirtualSize() > template.getVirtualSize()) {
                        RbdImage diskImage = rbd.open(disk.getName());
                        diskImage.resize(disk.getVirtualSize());
                        rbd.close(diskImage);
                        s_logger.debug("Resized " + disk.getName() + " to " + toHumanReadableSize(disk.getVirtualSize()));
                    }
                }
                rbd.close(srcImage);
                r.ioCtxDestroy(io);
            } else {
                /* The source pool or host is not the same Ceph cluster, we do a simple copy with Qemu-Img */
                s_logger.debug("Both the source and destination are RBD, but not the same Ceph cluster. Performing a copy");
                Rados rSrc = new Rados(srcPool.getAuthUserName());
                rSrc.confSet("mon_host", srcPool.getSourceHost() + ":" + srcPool.getSourcePort());
                rSrc.confSet("key", srcPool.getAuthSecret());
                rSrc.confSet("client_mount_timeout", "30");
                rSrc.connect();
                s_logger.debug("Succesfully connected to source Ceph cluster at " + rSrc.confGet("mon_host"));
                Rados rDest = new Rados(destPool.getAuthUserName());
                rDest.confSet("mon_host", destPool.getSourceHost() + ":" + destPool.getSourcePort());
                rDest.confSet("key", destPool.getAuthSecret());
                rDest.confSet("client_mount_timeout", "30");
                rDest.connect();
                s_logger.debug("Succesfully connected to source Ceph cluster at " + rDest.confGet("mon_host"));
                IoCTX sIO = rSrc.ioCtxCreate(srcPool.getSourceDir());
                Rbd sRbd = new Rbd(sIO);
                IoCTX dIO = rDest.ioCtxCreate(destPool.getSourceDir());
                Rbd dRbd = new Rbd(dIO);
                s_logger.debug("Creating " + disk.getName() + " on the destination cluster " + rDest.confGet("mon_host") + " in pool " + destPool.getSourceDir());
                dRbd.create(disk.getName(), disk.getVirtualSize(), RBD_FEATURES, rbdOrder);
                RbdImage srcImage = sRbd.open(template.getName());
                RbdImage destImage = dRbd.open(disk.getName());
                s_logger.debug("Copying " + template.getName() + " from Ceph cluster " + rSrc.confGet("mon_host") + " to " + disk.getName() + " on cluster " + rDest.confGet("mon_host"));
                sRbd.copy(srcImage, destImage);
                sRbd.close(srcImage);
                dRbd.close(destImage);
                rSrc.ioCtxDestroy(sIO);
                rDest.ioCtxDestroy(dIO);
            }
        } catch (RadosException e) {
            s_logger.error("Failed to perform a RADOS action on the Ceph cluster, the error was: " + e.getMessage());
            disk = null;
        } catch (RbdException e) {
            s_logger.error("Failed to perform a RBD action on the Ceph cluster, the error was: " + e.getMessage());
            disk = null;
        }
    }
    return disk;
}