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Seems we over-synchronized the DHT

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- Removed the blocking synchronizations
This commit is contained in:
Joshua Kissoon 2014-05-09 14:11:58 +05:30
parent f5409c70e9
commit e8f0e20a8f
2 changed files with 12 additions and 13 deletions
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2
src/kademlia/core/DefaultConfiguration.java
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@ -14,7 +14,7 @@ public class DefaultConfiguration implements KadConfiguration
private final static long RESPONSE_TIMEOUT = 1500;
private final static long OPERATION_TIMEOUT = 3000;
private final static int CONCURRENCY = 10;
private final static int K = 5;
private final static int K = 10;
private final static int RCSIZE = 3;
private final static int STALE = 1;
private final static String LOCAL_FOLDER = "kademlia";

23
src/kademlia/dht/DHT.java
View File

@ -80,7 +80,7 @@ public class DHT
*
* @throws java.io.IOException
*/
public synchronized boolean store(StorageEntry content) throws IOException
public boolean store(StorageEntry content) throws IOException
{
/* Lets check if we have this content and it's the updated version */
if (this.contentManager.contains(content.getContentMetadata()))
@ -139,10 +139,9 @@ public class DHT
*/
return false;
}
}
public synchronized boolean store(KadContent content) throws IOException
public boolean store(KadContent content) throws IOException
{
return this.store(new StorageEntry(content));
}
@ -155,7 +154,7 @@ public class DHT
*
* @return A KadContent object
*/
private synchronized StorageEntry retrieve(KademliaId key, int hashCode) throws FileNotFoundException, IOException, ClassNotFoundException
private StorageEntry retrieve(KademliaId key, int hashCode) throws FileNotFoundException, IOException, ClassNotFoundException
{
String folder = this.getContentStorageFolderName(key);
DataInputStream din = new DataInputStream(new FileInputStream(folder + File.separator + hashCode + ".kct"));
@ -169,7 +168,7 @@ public class DHT
*
* @return boolean Whether any content exist that satisfy the criteria
*/
public synchronized boolean contains(GetParameter param)
public boolean contains(GetParameter param)
{
return this.contentManager.contains(param);
}
@ -183,7 +182,7 @@ public class DHT
*
* @throws java.io.IOException
*/
public synchronized StorageEntry get(StorageEntryMetadata entry) throws IOException, NoSuchElementException
public StorageEntry get(StorageEntryMetadata entry) throws IOException, NoSuchElementException
{
try
{
@ -212,7 +211,7 @@ public class DHT
*
* @throws java.io.IOException
*/
public synchronized StorageEntry get(GetParameter param) throws NoSuchElementException, IOException
public StorageEntry get(GetParameter param) throws NoSuchElementException, IOException
{
/* Load a KadContent if any exist for the given criteria */
try
@ -241,12 +240,12 @@ public class DHT
*
* @throws kademlia.exceptions.ContentNotFoundException
*/
public synchronized void remove(KadContent content) throws ContentNotFoundException
public void remove(KadContent content) throws ContentNotFoundException
{
this.remove(new StorageEntryMetadata(content));
}
public synchronized void remove(StorageEntryMetadata entry) throws ContentNotFoundException
public void remove(StorageEntryMetadata entry) throws ContentNotFoundException
{
String folder = this.getContentStorageFolderName(entry.getKey());
File file = new File(folder + File.separator + entry.hashCode() + ".kct");
@ -270,7 +269,7 @@ public class DHT
*
* @return String The name of the folder
*/
private synchronized String getContentStorageFolderName(KademliaId key)
private String getContentStorageFolderName(KademliaId key)
{
/**
* Each content is stored in a folder named after the first 10 characters of the NodeId
@ -292,7 +291,7 @@ public class DHT
/**
* @return A List of all StorageEntries for this node
*/
public synchronized List<StorageEntryMetadata> getStorageEntries()
public List<StorageEntryMetadata> getStorageEntries()
{
return contentManager.getAllEntries();
}
@ -303,7 +302,7 @@ public class DHT
*
* @param ientries The entries to add
*/
public synchronized void putStorageEntries(List<StorageEntryMetadata> ientries)
public void putStorageEntries(List<StorageEntryMetadata> ientries)
{
for (StorageEntryMetadata e : ientries)
{