public void testUpdatingLastUsed() throws Exception {
long idle = 600000;
dc.put("k", "v", -1, -1);
InternalCacheEntry ice = dc.get("k");
assert ice.getClass().equals(immortaltype());
assert ice.getExpiryTime() == -1;
assert ice.getMaxIdle() == -1;
assert ice.getLifespan() == -1;
dc.put("k", "v", -1, idle);
long oldTime = System.currentTimeMillis();
Thread.sleep(100); // for time calc granularity
ice = dc.get("k");
assert ice.getClass().equals(transienttype());
assert ice.getExpiryTime() > -1;
assert ice.getLastUsed() > oldTime;
Thread.sleep(100); // for time calc granularity
assert ice.getLastUsed() < System.currentTimeMillis();
assert ice.getMaxIdle() == idle;
assert ice.getLifespan() == -1;
oldTime = System.currentTimeMillis();
Thread.sleep(100); // for time calc granularity
assert dc.get("k") != null;
// check that the last used stamp has been updated on a get
assert ice.getLastUsed() > oldTime;
Thread.sleep(100); // for time calc granularity
assert ice.getLastUsed() < System.currentTimeMillis();
}
private void testStoredEntry(
InternalCacheEntry entry,
Object expectedValue,
long expectedLifespan,
String src,
Object key) {
assert entry != null : src + " entry for key " + key + " should NOT be null";
assert entry.getValue().equals(expectedValue)
: src
+ " should contain value "
+ expectedValue
+ " under key "
+ entry.getKey()
+ " but was "
+ entry.getValue()
+ ". Entry is "
+ entry;
assert entry.getLifespan() == expectedLifespan
: src
+ " expected lifespan for key "
+ key
+ " to be "
+ expectedLifespan
+ " but was "
+ entry.getLifespan()
+ ". Entry is "
+ entry;
}
private Object realRemoteGet(
InvocationContext ctx, Object key, boolean storeInL1, boolean isWrite) throws Throwable {
if (trace) log.tracef("Doing a remote get for key %s", key);
boolean acquireRemoteLock = false;
if (ctx.isInTxScope()) {
TxInvocationContext txContext = (TxInvocationContext) ctx;
acquireRemoteLock =
isWrite && isPessimisticCache && !txContext.getAffectedKeys().contains(key);
}
// attempt a remote lookup
InternalCacheEntry ice = dm.retrieveFromRemoteSource(key, ctx, acquireRemoteLock);
if (acquireRemoteLock) {
((TxInvocationContext) ctx).addAffectedKey(key);
}
if (ice != null) {
if (storeInL1) {
if (isL1CacheEnabled) {
if (trace) log.tracef("Caching remotely retrieved entry for key %s in L1", key);
// This should be fail-safe
try {
long lifespan =
ice.getLifespan() < 0
? configuration.getL1Lifespan()
: Math.min(ice.getLifespan(), configuration.getL1Lifespan());
PutKeyValueCommand put =
cf.buildPutKeyValueCommand(
ice.getKey(), ice.getValue(), lifespan, -1, ctx.getFlags());
lockAndWrap(ctx, key, ice);
invokeNextInterceptor(ctx, put);
} catch (Exception e) {
// Couldn't store in L1 for some reason. But don't fail the transaction!
log.infof("Unable to store entry %s in L1 cache", key);
log.debug("Inability to store in L1 caused by", e);
}
} else {
CacheEntry ce = ctx.lookupEntry(key);
if (ce == null || ce.isNull() || ce.isLockPlaceholder() || ce.getValue() == null) {
if (ce != null && ce.isChanged()) {
ce.setValue(ice.getValue());
} else {
if (isWrite) lockAndWrap(ctx, key, ice);
else ctx.putLookedUpEntry(key, ice);
}
}
}
} else {
if (trace) log.tracef("Not caching remotely retrieved entry for key %s in L1", key);
}
return ice.getValue();
}
return null;
}
@Override
protected String toString(InternalCacheEntry ice) {
if (ice == null) return null;
StringBuilder sb = new StringBuilder(256);
sb.append(ice.getClass().getSimpleName());
sb.append("[key=").append(ice.getKey()).append(", value=").append(ice.getValue());
sb.append(", created=").append(ice.getCreated()).append(", isCreated=").append(ice.isCreated());
sb.append(", lastUsed=")
.append(ice.getLastUsed())
.append(", isChanged=")
.append(ice.isChanged());
sb.append(", expires=")
.append(ice.getExpiryTime())
.append(", isExpired=")
.append(ice.isExpired(System.currentTimeMillis()));
sb.append(", canExpire=")
.append(ice.canExpire())
.append(", isEvicted=")
.append(ice.isEvicted());
sb.append(", isRemoved=").append(ice.isRemoved()).append(", isValid=").append(ice.isValid());
sb.append(", lifespan=")
.append(ice.getLifespan())
.append(", maxIdle=")
.append(ice.getMaxIdle());
return sb.append(']').toString();
}
private MVCCEntry wrapInternalCacheEntryForPut(
InvocationContext ctx, Object key, InternalCacheEntry cacheEntry) {
MVCCEntry mvccEntry =
createWrappedEntry(
key,
cacheEntry.getValue(),
cacheEntry.getVersion(),
false,
false,
cacheEntry.getLifespan());
ctx.putLookedUpEntry(key, mvccEntry);
return mvccEntry;
}
/**
* Attempts to the L1 update and set the value. If the L1 update was marked as being skipped this
* will instead just set the value to release blockers. A null value can be provided which will
* not run the L1 update but will just alert other waiters that a null was given.
*/
public void runL1UpdateIfPossible(InternalCacheEntry ice) {
Object value = null;
try {
if (ice != null) {
value = ice.getValue();
Object key;
if (sync.attemptUpdateToRunning() && !dc.containsKey((key = ice.getKey()))) {
// Acquire the transfer lock to ensure that we don't have a rehash and change to become an
// owner,
// note we check the ownership in following if
stateTransferLock.acquireSharedTopologyLock();
try {
// Now we can update the L1 if there isn't a value already there and we haven't now
// become a write
// owner
if (!dc.containsKey(key) && !cdl.localNodeIsOwner(key)) {
log.tracef("Caching remotely retrieved entry for key %s in L1", key);
long lifespan =
ice.getLifespan() < 0 ? l1Lifespan : Math.min(ice.getLifespan(), l1Lifespan);
// Make a copy of the metadata stored internally, adjust
// lifespan/maxIdle settings and send them a modification
Metadata newMetadata =
ice.getMetadata().builder().lifespan(lifespan).maxIdle(-1).build();
dc.put(key, ice.getValue(), newMetadata);
} else {
log.tracef("Data container contained value after rehash for key %s", key);
}
} finally {
stateTransferLock.releaseSharedTopologyLock();
}
}
}
} finally {
sync.innerSet(value);
}
}
public Object getValueAt(int rowIndex, int columnIndex) {
if (data.size() > rowIndex) {
InternalCacheEntry e = data.get(rowIndex);
switch (columnIndex) {
case 0:
return e.getKey();
case 1:
return e.getValue();
case 2:
return e.getLifespan();
case 3:
return e.getMaxIdle();
}
}
return "NULL!";
}
public void testIdleExpiryInPut() throws InterruptedException {
Cache<String, String> cache = cm.getCache();
long idleTime = IDLE_TIMEOUT;
cache.put("k", "v", -1, MILLISECONDS, idleTime, MILLISECONDS);
DataContainer dc = cache.getAdvancedCache().getDataContainer();
InternalCacheEntry se = dc.get("k", null);
assert se.getKey().equals("k");
assert se.getValue().equals("v");
assert se.getLifespan() == -1;
assert se.getMaxIdle() == idleTime;
assert !se.isExpired();
assert cache.get("k").equals("v");
Thread.sleep(idleTime + 100);
assert se.isExpired();
assert cache.get("k") == null;
}
private void doApplyState(
Address sender, int segmentId, Collection<InternalCacheEntry> cacheEntries) {
log.debugf(
"Applying new state for segment %d of cache %s from node %s: received %d cache entries",
segmentId, cacheName, sender, cacheEntries.size());
if (trace) {
List<Object> keys = new ArrayList<Object>(cacheEntries.size());
for (InternalCacheEntry e : cacheEntries) {
keys.add(e.getKey());
}
log.tracef(
"Received keys %s for segment %d of cache %s from node %s",
keys, segmentId, cacheName, sender);
}
// CACHE_MODE_LOCAL avoids handling by StateTransferInterceptor and any potential locks in
// StateTransferLock
EnumSet<Flag> flags =
EnumSet.of(
PUT_FOR_STATE_TRANSFER,
CACHE_MODE_LOCAL,
IGNORE_RETURN_VALUES,
SKIP_REMOTE_LOOKUP,
SKIP_SHARED_CACHE_STORE,
SKIP_OWNERSHIP_CHECK,
SKIP_XSITE_BACKUP);
for (InternalCacheEntry e : cacheEntries) {
try {
InvocationContext ctx;
if (transactionManager != null) {
// cache is transactional
transactionManager.begin();
Transaction transaction = transactionManager.getTransaction();
ctx = icc.createInvocationContext(transaction);
((TxInvocationContext) ctx).setImplicitTransaction(true);
} else {
// non-tx cache
ctx = icc.createSingleKeyNonTxInvocationContext();
}
PutKeyValueCommand put =
useVersionedPut
? commandsFactory.buildVersionedPutKeyValueCommand(
e.getKey(),
e.getValue(),
e.getLifespan(),
e.getMaxIdle(),
e.getVersion(),
flags)
: commandsFactory.buildPutKeyValueCommand(
e.getKey(), e.getValue(), e.getLifespan(), e.getMaxIdle(), flags);
boolean success = false;
try {
interceptorChain.invoke(ctx, put);
success = true;
} finally {
if (ctx.isInTxScope()) {
if (success) {
((LocalTransaction) ((TxInvocationContext) ctx).getCacheTransaction())
.setFromStateTransfer(true);
try {
transactionManager.commit();
} catch (Throwable ex) {
log.errorf(
ex,
"Could not commit transaction created by state transfer of key %s",
e.getKey());
if (transactionManager.getTransaction() != null) {
transactionManager.rollback();
}
}
} else {
transactionManager.rollback();
}
}
}
} catch (Exception ex) {
log.problemApplyingStateForKey(ex.getMessage(), e.getKey(), ex);
}
}
log.debugf("Finished applying state for segment %d of cache %s", segmentId, cacheName);
}
