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.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 (" + template.getVirtualSize() + " bytes)");
rbd.create(disk.getName(), template.getVirtualSize(), this.rbdFeatures, this.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 "
+ this.rbdTemplateSnapName);
/* The source image is format 2, we can do a RBD snapshot+clone (layering) */
rbd.clone(template.getName(), this.rbdTemplateSnapName, io, disk.getName(), this.rbdFeatures, this.rbdOrder);
s_logger.debug("Succesfully cloned " + template.getName() + "@" + this.rbdTemplateSnapName + " to " + disk.getName());
}
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.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.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(), template.getVirtualSize(), this.rbdFeatures, this.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) {