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Replace synchronized with the use of database locking

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This commit is contained in:
Mike Tutkowski 2015-01-27 15:46:34 -07:00
parent a696947eaf
commit c2330f48dd
2 changed files with 58 additions and 32 deletions
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2
engine/storage/snapshot/src/org/apache/cloudstack/storage/snapshot/StorageSystemSnapshotStrategy.java
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@ -200,10 +200,8 @@ public class StorageSystemSnapshotStrategy extends SnapshotStrategyBase {
volumeInfo.stateTransit(Volume.Event.OperationFailed);
}
if (snapshotVO != null) {
_snapshotDao.releaseFromLockTable(snapshotInfo.getId());
}
}
return snapshotInfo;
}

36
plugins/storage/volume/solidfire/src/org/apache/cloudstack/storage/datastore/driver/SolidFirePrimaryDataStoreDriver.java
View File

@ -71,10 +71,12 @@ import com.cloud.user.AccountDetailVO;
import com.cloud.user.AccountDetailsDao;
import com.cloud.user.AccountVO;
import com.cloud.user.dao.AccountDao;
import com.cloud.utils.db.GlobalLock;
import com.cloud.utils.exception.CloudRuntimeException;
public class SolidFirePrimaryDataStoreDriver implements PrimaryDataStoreDriver {
private static final Logger s_logger = Logger.getLogger(SolidFirePrimaryDataStoreDriver.class);
private static final int s_lockTimeInSeconds = 300;
@Inject private AccountDao _accountDao;
@Inject private AccountDetailsDao _accountDetailsDao;
@ -124,7 +126,7 @@ public class SolidFirePrimaryDataStoreDriver implements PrimaryDataStoreDriver {
// if the ID of volumeInfo in not in the VAG, add it (ModifyVolumeAccessGroup)
// if the VAG doesn't exist, create it with the IQNs of the hosts and the ID of volumeInfo (CreateVolumeAccessGroup)
@Override
public synchronized boolean grantAccess(DataObject dataObject, Host host, DataStore dataStore)
public boolean grantAccess(DataObject dataObject, Host host, DataStore dataStore)
{
if (dataObject == null || host == null || dataStore == null) {
return false;
@ -134,6 +136,15 @@ public class SolidFirePrimaryDataStoreDriver implements PrimaryDataStoreDriver {
long clusterId = host.getClusterId();
long storagePoolId = dataStore.getId();
ClusterVO cluster = _clusterDao.findById(clusterId);
GlobalLock lock = GlobalLock.getInternLock(cluster.getUuid());
if (!lock.lock(s_lockTimeInSeconds)) {
s_logger.debug("Couldn't lock the DB (in grantAccess) on the following string: " + cluster.getUuid());
}
try {
ClusterDetailsVO clusterDetail = _clusterDetailsDao.findDetail(clusterId, SolidFireUtil.getVagKey(storagePoolId));
String vagId = clusterDetail != null ? clusterDetail.getValue() : null;
@ -155,19 +166,22 @@ public class SolidFirePrimaryDataStoreDriver implements PrimaryDataStoreDriver {
SolidFireUtil.modifySolidFireVag(sfConnection, sfVag.getId(), hostIqns, volumeIds);
}
else {
ClusterVO cluster = _clusterDao.findById(clusterId);
SolidFireUtil.placeVolumeInVolumeAccessGroup(sfConnection, sfVolumeId, storagePoolId, cluster.getUuid(), hosts, _clusterDetailsDao);
}
return true;
}
finally {
lock.unlock();
lock.releaseRef();
}
}
// get the VAG associated with volumeInfo's cluster, if any (ListVolumeAccessGroups) // might not exist if using CHAP
// if the VAG exists
// remove the ID of volumeInfo from the VAG (ModifyVolumeAccessGroup)
@Override
public synchronized void revokeAccess(DataObject dataObject, Host host, DataStore dataStore)
public void revokeAccess(DataObject dataObject, Host host, DataStore dataStore)
{
if (dataObject == null || host == null || dataStore == null) {
return;
@ -177,6 +191,15 @@ public class SolidFirePrimaryDataStoreDriver implements PrimaryDataStoreDriver {
long clusterId = host.getClusterId();
long storagePoolId = dataStore.getId();
ClusterVO cluster = _clusterDao.findById(clusterId);
GlobalLock lock = GlobalLock.getInternLock(cluster.getUuid());
if (!lock.lock(s_lockTimeInSeconds)) {
s_logger.debug("Couldn't lock the DB (in revokeAccess) on the following string: " + cluster.getUuid());
}
try {
ClusterDetailsVO clusterDetail = _clusterDetailsDao.findDetail(clusterId, SolidFireUtil.getVagKey(storagePoolId));
String vagId = clusterDetail != null ? clusterDetail.getValue() : null;
@ -194,6 +217,11 @@ public class SolidFirePrimaryDataStoreDriver implements PrimaryDataStoreDriver {
SolidFireUtil.modifySolidFireVag(sfConnection, sfVag.getId(), hostIqns, volumeIds);
}
}
finally {
lock.unlock();
lock.releaseRef();
}
}
private long getSolidFireVolumeId(DataObject dataObject) {
if (dataObject.getType() == DataObjectType.VOLUME) {