public void openSystemStore(StoreDefinition storeDef) {
logger.info("Opening system store '" + storeDef.getName() + "' (" + storeDef.getType() + ").");
StorageConfiguration config = storageConfigs.get(storeDef.getType());
if (config == null)
throw new ConfigurationException(
"Attempt to open system store "
+ storeDef.getName()
+ " but "
+ storeDef.getType()
+ " storage engine has not been enabled.");
final StorageEngine<ByteArray, byte[], byte[]> engine = config.getStore(storeDef, null);
// Noted that there is no read-only processing as for user stores.
// openStore() should have atomic semantics
try {
registerSystemEngine(engine);
if (voldemortConfig.isServerRoutingEnabled())
registerNodeStores(storeDef, metadata.getCluster(), voldemortConfig.getNodeId());
if (storeDef.hasRetentionPeriod()) scheduleCleanupJob(storeDef, engine);
} catch (Exception e) {
unregisterSystemEngine(engine);
throw new VoldemortException(e);
}
}
public void unregisterSystemEngine(StorageEngine<ByteArray, byte[], byte[]> engine) {
String storeName = engine.getName();
Store<ByteArray, byte[], byte[]> store = storeRepository.removeLocalStore(storeName);
if (store != null) {
if (voldemortConfig.isJmxEnabled()) {
MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
if (voldemortConfig.isEnableRebalanceService()) {
ObjectName name = null;
if (this.voldemortConfig.isEnableJmxClusterName())
name =
JmxUtils.createObjectName(
metadata.getCluster().getName()
+ "."
+ JmxUtils.getPackageName(RedirectingStore.class),
store.getName());
else
name =
JmxUtils.createObjectName(
JmxUtils.getPackageName(RedirectingStore.class), store.getName());
synchronized (mbeanServer) {
if (mbeanServer.isRegistered(name)) JmxUtils.unregisterMbean(mbeanServer, name);
}
}
if (voldemortConfig.isStatTrackingEnabled()) {
ObjectName name = null;
if (this.voldemortConfig.isEnableJmxClusterName())
name =
JmxUtils.createObjectName(
metadata.getCluster().getName()
+ "."
+ JmxUtils.getPackageName(store.getClass()),
store.getName());
else
name =
JmxUtils.createObjectName(
JmxUtils.getPackageName(store.getClass()), store.getName());
synchronized (mbeanServer) {
if (mbeanServer.isRegistered(name)) JmxUtils.unregisterMbean(mbeanServer, name);
}
}
}
if (voldemortConfig.isServerRoutingEnabled()) {
this.storeRepository.removeRoutedStore(storeName);
for (Node node : metadata.getCluster().getNodes())
this.storeRepository.removeNodeStore(storeName, node.getId());
}
}
storeRepository.removeStorageEngine(storeName);
// engine.truncate(); why truncate here when unregister? Isn't close
// good enough?
engine.close();
}
public StorageEngine<ByteArray, byte[], byte[]> openStore(StoreDefinition storeDef) {
logger.info("Opening store '" + storeDef.getName() + "' (" + storeDef.getType() + ").");
StorageConfiguration config = storageConfigs.get(storeDef.getType());
if (config == null)
throw new ConfigurationException(
"Attempt to open store "
+ storeDef.getName()
+ " but "
+ storeDef.getType()
+ " storage engine has not been enabled.");
boolean isReadOnly = storeDef.getType().compareTo(ReadOnlyStorageConfiguration.TYPE_NAME) == 0;
final RoutingStrategy routingStrategy =
new RoutingStrategyFactory().updateRoutingStrategy(storeDef, metadata.getCluster());
final StorageEngine<ByteArray, byte[], byte[]> engine =
config.getStore(storeDef, routingStrategy);
// Update the routing strategy + add listener to metadata
if (storeDef.getType().compareTo(ReadOnlyStorageConfiguration.TYPE_NAME) == 0) {
metadata.addMetadataStoreListener(
storeDef.getName(),
new MetadataStoreListener() {
public void updateRoutingStrategy(RoutingStrategy updatedRoutingStrategy) {
((ReadOnlyStorageEngine) engine).setRoutingStrategy(updatedRoutingStrategy);
}
public void updateStoreDefinition(StoreDefinition storeDef) {
return;
}
});
}
// openStore() should have atomic semantics
try {
registerEngine(engine, isReadOnly, storeDef.getType(), storeDef);
if (voldemortConfig.isServerRoutingEnabled())
registerNodeStores(storeDef, metadata.getCluster(), voldemortConfig.getNodeId());
if (storeDef.hasRetentionPeriod()) scheduleCleanupJob(storeDef, engine);
} catch (Exception e) {
removeEngine(engine, isReadOnly, storeDef.getType(), false);
throw new VoldemortException(e);
}
return engine;
}
/**
* Unregister and remove the engine from the storage repository. This is called during deletion of
* stores and if there are exceptions adding/opening stores
*
* @param engine The actual engine to remove
* @param isReadOnly Is this read-only?
* @param storeType The storage type of the store
* @param truncate Should the store be truncated?
*/
public void removeEngine(
StorageEngine<ByteArray, byte[], byte[]> engine,
boolean isReadOnly,
String storeType,
boolean truncate) {
String storeName = engine.getName();
Store<ByteArray, byte[], byte[]> store = storeRepository.removeLocalStore(storeName);
boolean isSlop = storeType.compareTo("slop") == 0;
boolean isView = storeType.compareTo(ViewStorageConfiguration.TYPE_NAME) == 0;
boolean isMetadata = storeName.compareTo(MetadataStore.METADATA_STORE_NAME) == 0;
if (store != null) {
if (voldemortConfig.isJmxEnabled()) {
MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();
if (!isSlop
&& voldemortConfig.isEnableRebalanceService()
&& !isReadOnly
&& !isMetadata
&& !isView) {
ObjectName name = null;
if (this.voldemortConfig.isEnableJmxClusterName())
name =
JmxUtils.createObjectName(
metadata.getCluster().getName()
+ "."
+ JmxUtils.getPackageName(RedirectingStore.class),
store.getName());
else
name =
JmxUtils.createObjectName(
JmxUtils.getPackageName(RedirectingStore.class), store.getName());
synchronized (mbeanServer) {
if (mbeanServer.isRegistered(name)) JmxUtils.unregisterMbean(mbeanServer, name);
}
}
if (voldemortConfig.isStatTrackingEnabled()) {
ObjectName name = null;
if (this.voldemortConfig.isEnableJmxClusterName())
name =
JmxUtils.createObjectName(
metadata.getCluster().getName()
+ "."
+ JmxUtils.getPackageName(store.getClass()),
store.getName());
else
name =
JmxUtils.createObjectName(
JmxUtils.getPackageName(store.getClass()), store.getName());
synchronized (mbeanServer) {
if (mbeanServer.isRegistered(name)) JmxUtils.unregisterMbean(mbeanServer, name);
}
}
}
if (voldemortConfig.isServerRoutingEnabled() && !isSlop) {
this.storeRepository.removeRoutedStore(storeName);
for (Node node : metadata.getCluster().getNodes())
this.storeRepository.removeNodeStore(storeName, node.getId());
}
}
storeRepository.removeStorageEngine(storeName);
if (truncate) engine.truncate();
engine.close();
}
