Github user jburwell commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1403#discussion_r59079506
--- Diff:
engine/storage/datamotion/src/org/apache/cloudstack/storage/motion/StorageSystemDataMotionStrategy.java
---
@@ -361,59 +608,225 @@ private String getProperty(long snapshotId, String
property) {
}
private Map<String, String> getVolumeDetails(VolumeInfo volumeInfo) {
- Map<String, String> sourceDetails = new HashMap<String, String>();
+ Map<String, String> volumeDetails = new HashMap<String, String>();
VolumeVO volumeVO = _volumeDao.findById(volumeInfo.getId());
long storagePoolId = volumeVO.getPoolId();
StoragePoolVO storagePoolVO =
_storagePoolDao.findById(storagePoolId);
- sourceDetails.put(DiskTO.STORAGE_HOST,
storagePoolVO.getHostAddress());
- sourceDetails.put(DiskTO.STORAGE_PORT,
String.valueOf(storagePoolVO.getPort()));
- sourceDetails.put(DiskTO.IQN, volumeVO.get_iScsiName());
+ volumeDetails.put(DiskTO.STORAGE_HOST,
storagePoolVO.getHostAddress());
+ volumeDetails.put(DiskTO.STORAGE_PORT,
String.valueOf(storagePoolVO.getPort()));
+ volumeDetails.put(DiskTO.IQN, volumeVO.get_iScsiName());
ChapInfo chapInfo = _volumeService.getChapInfo(volumeInfo,
volumeInfo.getDataStore());
if (chapInfo != null) {
- sourceDetails.put(DiskTO.CHAP_INITIATOR_USERNAME,
chapInfo.getInitiatorUsername());
- sourceDetails.put(DiskTO.CHAP_INITIATOR_SECRET,
chapInfo.getInitiatorSecret());
- sourceDetails.put(DiskTO.CHAP_TARGET_USERNAME,
chapInfo.getTargetUsername());
- sourceDetails.put(DiskTO.CHAP_TARGET_SECRET,
chapInfo.getTargetSecret());
+ volumeDetails.put(DiskTO.CHAP_INITIATOR_USERNAME,
chapInfo.getInitiatorUsername());
+ volumeDetails.put(DiskTO.CHAP_INITIATOR_SECRET,
chapInfo.getInitiatorSecret());
+ volumeDetails.put(DiskTO.CHAP_TARGET_USERNAME,
chapInfo.getTargetUsername());
+ volumeDetails.put(DiskTO.CHAP_TARGET_SECRET,
chapInfo.getTargetSecret());
+ }
+
+ return volumeDetails;
+ }
+
+ private Map<String, String> getSnapshotDetails(SnapshotInfo
snapshotInfo) {
+ Map<String, String> snapshotDetails = new HashMap<String,
String>();
+
+ long storagePoolId = snapshotInfo.getDataStore().getId();
+ StoragePoolVO storagePoolVO =
_storagePoolDao.findById(storagePoolId);
+
+ snapshotDetails.put(DiskTO.STORAGE_HOST,
storagePoolVO.getHostAddress());
+ snapshotDetails.put(DiskTO.STORAGE_PORT,
String.valueOf(storagePoolVO.getPort()));
+
+ long snapshotId = snapshotInfo.getId();
+
+ snapshotDetails.put(DiskTO.IQN, getProperty(snapshotId,
DiskTO.IQN));
+
+ snapshotDetails.put(DiskTO.CHAP_INITIATOR_USERNAME,
getProperty(snapshotId, DiskTO.CHAP_INITIATOR_USERNAME));
+ snapshotDetails.put(DiskTO.CHAP_INITIATOR_SECRET,
getProperty(snapshotId, DiskTO.CHAP_INITIATOR_SECRET));
+ snapshotDetails.put(DiskTO.CHAP_TARGET_USERNAME,
getProperty(snapshotId, DiskTO.CHAP_TARGET_USERNAME));
+ snapshotDetails.put(DiskTO.CHAP_TARGET_SECRET,
getProperty(snapshotId, DiskTO.CHAP_TARGET_SECRET));
+
+ return snapshotDetails;
+ }
+
+ private HostVO getHost(SnapshotInfo snapshotInfo) {
+ HostVO hostVO = getHost(snapshotInfo.getDataCenterId(), true);
+
+ if (hostVO == null) {
+ hostVO = getHost(snapshotInfo.getDataCenterId(), false);
+
+ if (hostVO == null) {
+ throw new CloudRuntimeException("Unable to locate an
applicable host");
+ }
}
- return sourceDetails;
+ return hostVO;
}
- public HostVO getHost(long dataStoreId) {
- StoragePoolVO storagePoolVO =
_storagePoolDao.findById(dataStoreId);
+ private HostVO getHost(Long zoneId, boolean
computeClusterMustSupportResign) {
+ if (zoneId == null) {
+ throw new CloudRuntimeException("Zone ID cannot be null.");
+ }
- List<? extends Cluster> clusters =
_mgr.searchForClusters(storagePoolVO.getDataCenterId(), new Long(0),
Long.MAX_VALUE, HypervisorType.XenServer.toString());
+ List<? extends Cluster> clusters = _mgr.searchForClusters(zoneId,
new Long(0), Long.MAX_VALUE, HypervisorType.XenServer.toString());
if (clusters == null) {
- throw new CloudRuntimeException("Unable to locate an
applicable cluster");
+ clusters = new ArrayList<>();
}
+ Collections.shuffle(clusters, new Random(System.nanoTime()));
--- End diff --
``new Random`` is expensive. Did you consider initializing a ``Random``
instance as a static member passing the same instance into ``shuffle``? Since
``Random`` is
[thread-safe](http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6362070), the
same instance could be safely used. This would avoid the cost of seeding a RNG
on every method call.
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