String vmInstanceName = cmd.getInstanceName();
boolean shrinkOk = cmd.getShrinkOk();
StorageFilerTO spool = cmd.getPool();
try {
KVMStoragePool pool = _storagePoolMgr.getStoragePool(spool.getType(), spool.getUuid());
KVMPhysicalDisk vol = pool.getPhysicalDisk(volid);
String path = vol.getPath();
String type = getResizeScriptType(pool, vol);
/**
* RBD volumes can't be resized via a Bash script or via libvirt
*
* libvirt-java doesn't implemented resizing volumes, so we have to do this manually
*
* Future fix would be to hand this over to libvirt
*/
if (pool.getType() == StoragePoolType.RBD) {
try {
Rados r = new Rados(pool.getAuthUserName());
r.confSet("mon_host", pool.getSourceHost() + ":" + pool.getSourcePort());
r.confSet("key", pool.getAuthSecret());
r.connect();
s_logger.debug("Succesfully connected to Ceph cluster at " + r.confGet("mon_host"));
IoCTX io = r.ioCtxCreate(pool.getSourceDir());
Rbd rbd = new Rbd(io);
RbdImage image = rbd.open(vol.getName());
s_logger.debug("Resizing RBD volume " + vol.getName() + " to " + newSize + " bytes");
image.resize(newSize);
rbd.close(image);
r.ioCtxDestroy(io);
s_logger.debug("Succesfully resized RBD volume " + vol.getName() + " to " + newSize + " bytes");
} catch (RadosException e) {
return new ResizeVolumeAnswer(cmd, false, e.toString());
} catch (RbdException e) {
return new ResizeVolumeAnswer(cmd, false, e.toString());
}
} else {
if (type == null) {
return new ResizeVolumeAnswer(cmd, false, "Unsupported volume format: pool type '"
+ pool.getType() + "' and volume format '" + vol.getFormat() + "'");
} else if (type.equals("QCOW2") && shrinkOk) {
return new ResizeVolumeAnswer(cmd, false, "Unable to shrink volumes of type " + type);
}
s_logger.debug("got to the stage where we execute the volume resize, params:"
+ path + "," + currentSize + "," + newSize + "," + type + "," + vmInstanceName + "," + shrinkOk);
final Script resizecmd = new Script(_resizeVolumePath,
_cmdsTimeout, s_logger);
resizecmd.add("-s",String.valueOf(newSize));
resizecmd.add("-c",String.valueOf(currentSize));
resizecmd.add("-p",path);
resizecmd.add("-t",type);
resizecmd.add("-r",String.valueOf(shrinkOk));
resizecmd.add("-v",vmInstanceName);
String result = resizecmd.execute();
if (result != null) {
return new ResizeVolumeAnswer(cmd, false, result);
}
}
/* fetch new size as seen from libvirt, don't want to assume anything */
pool = _storagePoolMgr.getStoragePool(spool.getType(), spool.getUuid());
long finalSize = pool.getPhysicalDisk(volid).getVirtualSize();
s_logger.debug("after resize, size reports as " + finalSize + ", requested " + newSize);
return new ResizeVolumeAnswer(cmd, true, "success", finalSize);
} catch (CloudRuntimeException e) {
String error = "failed to resize volume: " + e;
s_logger.debug(error);