/** {@inheritDoc} */
@Override
public void onClose() throws IgniteCheckedException {
if (data == null)
// Nothing to close.
return;
try {
U.closeQuiet(data.getStatement());
} catch (SQLException e) {
throw new IgniteCheckedException(e);
}
U.closeQuiet(data);
}
/** @throws IOException If failed. */
private void initFavicon() throws IOException {
assert favicon == null;
InputStream in = getClass().getResourceAsStream("favicon.ico");
if (in != null) {
BufferedInputStream bis = new BufferedInputStream(in);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try {
byte[] buf = new byte[2048];
while (true) {
int n = bis.read(buf);
if (n == -1) break;
bos.write(buf, 0, n);
}
favicon = bos.toByteArray();
} finally {
U.closeQuiet(bis);
}
}
}
/** @param workTokDir Token directory (common for multiple nodes). */
private void cleanupResources(File workTokDir) {
RandomAccessFile lockFile = null;
FileLock lock = null;
try {
lockFile = new RandomAccessFile(new File(workTokDir, LOCK_FILE_NAME), "rw");
lock = lockFile.getChannel().lock();
if (lock != null) processTokenDirectory(workTokDir);
else if (log.isDebugEnabled())
log.debug(
"Token directory is being processed concurrently: " + workTokDir.getAbsolutePath());
} catch (OverlappingFileLockException ignored) {
if (log.isDebugEnabled())
log.debug(
"Token directory is being processed concurrently: " + workTokDir.getAbsolutePath());
} catch (FileLockInterruptionException ignored) {
Thread.currentThread().interrupt();
} catch (IOException e) {
U.error(log, "Failed to process directory: " + workTokDir.getAbsolutePath(), e);
} finally {
U.releaseQuiet(lock);
U.closeQuiet(lockFile);
}
}
/** Final resource cleanup. */
private void onFinished() {
// Second close is no-op, if closed manually.
U.closeQuiet(out);
endpoint.close();
// Finally, remove from queue.
if (clientWorkers.unlinkx(node)) hnd.onClosed(ses);
}
/** @param e Optional exception occurred while stopping this */
private void shutdown0(@Nullable Throwable e) {
if (!isCancelled()) {
if (e != null) U.error(log, "Stopping client reader due to exception: " + endpoint, e);
}
U.closeQuiet(out);
endpoint.close();
}
/** {@inheritDoc} */
@Override
public void start() throws IgniteCheckedException {
IpcSharedMemoryNativeLoader.load(log);
pid = IpcSharedMemoryUtils.pid();
if (pid == -1) throw new IpcEndpointBindException("Failed to get PID of the current process.");
if (size <= 0) throw new IpcEndpointBindException("Space size should be positive: " + size);
String tokDirPath = this.tokDirPath;
if (F.isEmpty(tokDirPath)) throw new IpcEndpointBindException("Token directory path is empty.");
tokDirPath = tokDirPath + '/' + locNodeId.toString() + '-' + IpcSharedMemoryUtils.pid();
tokDir = U.resolveWorkDirectory(tokDirPath, false);
if (port <= 0 || port >= 0xffff)
throw new IpcEndpointBindException("Port value is illegal: " + port);
try {
srvSock = new ServerSocket();
// Always bind to loopback.
srvSock.bind(new InetSocketAddress("127.0.0.1", port));
} catch (IOException e) {
// Although empty socket constructor never throws exception, close it just in case.
U.closeQuiet(srvSock);
throw new IpcEndpointBindException(
"Failed to bind shared memory IPC endpoint (is port already " + "in use?): " + port, e);
}
gcWorker = new GcWorker(gridName, "ipc-shmem-gc", log);
new IgniteThread(gcWorker).start();
if (log.isInfoEnabled())
log.info(
"IPC shared memory server endpoint started [port="
+ port
+ ", tokDir="
+ tokDir.getAbsolutePath()
+ ']');
}
/**
* @param conn Connection.
* @param qry Query.
* @param explain Explain.
* @return Table.
* @throws IgniteCheckedException
*/
private GridMergeTable createMergeTable(
JdbcConnection conn, GridCacheSqlQuery qry, boolean explain) throws IgniteCheckedException {
try {
Session ses = (Session) conn.getSession();
CreateTableData data = new CreateTableData();
data.tableName = "T___";
data.schema = ses.getDatabase().getSchema(ses.getCurrentSchemaName());
data.create = true;
if (!explain) {
LinkedHashMap<String, ?> colsMap = qry.columns();
assert colsMap != null;
ArrayList<Column> cols = new ArrayList<>(colsMap.size());
for (Map.Entry<String, ?> e : colsMap.entrySet()) {
String alias = e.getKey();
GridSqlType t = (GridSqlType) e.getValue();
assert !F.isEmpty(alias);
Column c = new Column(alias, t.type(), t.precision(), t.scale(), t.displaySize());
cols.add(c);
}
data.columns = cols;
} else data.columns = planColumns();
return new GridMergeTable(data, ctx);
} catch (Exception e) {
U.closeQuiet(conn);
throw new IgniteCheckedException(e);
}
}
/** {@inheritDoc} */
@Override
public void close() {
closed = true;
U.closeQuiet(srvSock);
if (gcWorker != null) {
U.cancel(gcWorker);
// This method may be called from already interrupted thread.
// Need to ensure cleaning on close.
boolean interrupted = Thread.interrupted();
try {
U.join(gcWorker);
} catch (IgniteInterruptedCheckedException e) {
U.warn(log, "Interrupted when stopping GC worker.", e);
} finally {
if (interrupted) Thread.currentThread().interrupt();
}
}
}
/** @throws IOException If failed. */
private void initDefaultPage() throws IOException {
assert dfltPage == null;
InputStream in = getClass().getResourceAsStream("rest.html");
if (in != null) {
LineNumberReader rdr = new LineNumberReader(new InputStreamReader(in, CHARSET));
try {
StringBuilder buf = new StringBuilder(2048);
for (String line = rdr.readLine(); line != null; line = rdr.readLine()) {
buf.append(line);
if (!line.endsWith(" ")) buf.append(' ');
}
dfltPage = buf.toString();
} finally {
U.closeQuiet(rdr);
}
}
}
/** {@inheritDoc} */
@SuppressWarnings("deprecation")
@Override
public FSDataOutputStream createInternal(
Path f,
EnumSet<CreateFlag> flag,
FsPermission perm,
int bufSize,
short replication,
long blockSize,
Progressable progress,
Options.ChecksumOpt checksumOpt,
boolean createParent)
throws IOException {
A.notNull(f, "f");
enterBusy();
boolean overwrite = flag.contains(CreateFlag.OVERWRITE);
boolean append = flag.contains(CreateFlag.APPEND);
boolean create = flag.contains(CreateFlag.CREATE);
OutputStream out = null;
try {
IgfsPath path = convert(f);
IgfsMode mode = modeRslvr.resolveMode(path);
if (LOG.isDebugEnabled())
LOG.debug(
"Opening output stream in create [thread="
+ Thread.currentThread().getName()
+ "path="
+ path
+ ", overwrite="
+ overwrite
+ ", bufSize="
+ bufSize
+ ']');
if (mode == PROXY) {
FSDataOutputStream os =
secondaryFileSystem()
.create(toSecondary(f), perm, flag, bufSize, replication, blockSize, progress);
if (clientLog.isLogEnabled()) {
long logId = IgfsLogger.nextId();
if (append) clientLog.logAppend(logId, path, PROXY, bufSize); // Don't have stream ID.
else clientLog.logCreate(logId, path, PROXY, overwrite, bufSize, replication, blockSize);
return new FSDataOutputStream(new HadoopIgfsProxyOutputStream(os, clientLog, logId));
} else return os;
} else {
Map<String, String> permMap =
F.asMap(
IgfsUtils.PROP_PERMISSION,
toString(perm),
IgfsUtils.PROP_PREFER_LOCAL_WRITES,
Boolean.toString(preferLocFileWrites));
// Create stream and close it in the 'finally' section if any sequential operation failed.
HadoopIgfsStreamDelegate stream;
long logId = -1;
if (append) {
stream = rmtClient.append(path, create, permMap);
if (clientLog.isLogEnabled()) {
logId = IgfsLogger.nextId();
clientLog.logAppend(logId, path, mode, bufSize);
}
if (LOG.isDebugEnabled())
LOG.debug(
"Opened output stream in append [path=" + path + ", delegate=" + stream + ']');
} else {
stream =
rmtClient.create(
path, overwrite, colocateFileWrites, replication, blockSize, permMap);
if (clientLog.isLogEnabled()) {
logId = IgfsLogger.nextId();
clientLog.logCreate(logId, path, mode, overwrite, bufSize, replication, blockSize);
}
if (LOG.isDebugEnabled())
LOG.debug(
"Opened output stream in create [path=" + path + ", delegate=" + stream + ']');
}
assert stream != null;
HadoopIgfsOutputStream igfsOut = new HadoopIgfsOutputStream(stream, LOG, clientLog, logId);
bufSize = Math.max(64 * 1024, bufSize);
out = new BufferedOutputStream(igfsOut, bufSize);
FSDataOutputStream res = new FSDataOutputStream(out, null, 0);
// Mark stream created successfully.
out = null;
return res;
}
} finally {
// Close if failed during stream creation.
if (out != null) U.closeQuiet(out);
leaveBusy();
}
}
/**
* @param cctx Cache context.
* @param qry Query.
* @param keepPortable Keep portable.
* @return Cursor.
*/
public Iterator<List<?>> query(
GridCacheContext<?, ?> cctx, GridCacheTwoStepQuery qry, boolean keepPortable) {
for (int attempt = 0; ; attempt++) {
if (attempt != 0) {
try {
Thread.sleep(attempt * 10); // Wait for exchange.
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new CacheException("Query was interrupted.", e);
}
}
long qryReqId = reqIdGen.incrementAndGet();
QueryRun r = new QueryRun();
r.pageSize = qry.pageSize() <= 0 ? GridCacheTwoStepQuery.DFLT_PAGE_SIZE : qry.pageSize();
r.idxs = new ArrayList<>(qry.mapQueries().size());
String space = cctx.name();
r.conn = (JdbcConnection) h2.connectionForSpace(space);
AffinityTopologyVersion topVer = h2.readyTopologyVersion();
List<String> extraSpaces = extraSpaces(space, qry.spaces());
Collection<ClusterNode> nodes;
// Explicit partition mapping for unstable topology.
Map<ClusterNode, IntArray> partsMap = null;
if (isPreloadingActive(cctx, extraSpaces)) {
if (cctx.isReplicated()) nodes = replicatedUnstableDataNodes(cctx, extraSpaces);
else {
partsMap = partitionedUnstableDataNodes(cctx, extraSpaces);
nodes = partsMap == null ? null : partsMap.keySet();
}
} else nodes = stableDataNodes(topVer, cctx, extraSpaces);
if (nodes == null) continue; // Retry.
assert !nodes.isEmpty();
if (cctx.isReplicated() || qry.explain()) {
assert qry.explain() || !nodes.contains(ctx.discovery().localNode())
: "We must be on a client node.";
// Select random data node to run query on a replicated data or get EXPLAIN PLAN from a
// single node.
nodes = Collections.singleton(F.rand(nodes));
}
int tblIdx = 0;
final boolean skipMergeTbl = !qry.explain() && qry.skipMergeTable();
for (GridCacheSqlQuery mapQry : qry.mapQueries()) {
GridMergeIndex idx;
if (!skipMergeTbl) {
GridMergeTable tbl;
try {
tbl = createMergeTable(r.conn, mapQry, qry.explain());
} catch (IgniteCheckedException e) {
throw new IgniteException(e);
}
idx = tbl.getScanIndex(null);
fakeTable(r.conn, tblIdx++).setInnerTable(tbl);
} else idx = GridMergeIndexUnsorted.createDummy();
for (ClusterNode node : nodes) idx.addSource(node.id());
r.idxs.add(idx);
}
r.latch = new CountDownLatch(r.idxs.size() * nodes.size());
runs.put(qryReqId, r);
try {
if (ctx.clientDisconnected()) {
throw new CacheException(
"Query was cancelled, client node disconnected.",
new IgniteClientDisconnectedException(
ctx.cluster().clientReconnectFuture(), "Client node disconnected."));
}
Collection<GridCacheSqlQuery> mapQrys = qry.mapQueries();
if (qry.explain()) {
mapQrys = new ArrayList<>(qry.mapQueries().size());
for (GridCacheSqlQuery mapQry : qry.mapQueries())
mapQrys.add(new GridCacheSqlQuery("EXPLAIN " + mapQry.query(), mapQry.parameters()));
}
if (nodes.size() != 1 || !F.first(nodes).isLocal()) { // Marshall params for remotes.
Marshaller m = ctx.config().getMarshaller();
for (GridCacheSqlQuery mapQry : mapQrys) mapQry.marshallParams(m);
}
boolean retry = false;
if (send(
nodes,
new GridQueryRequest(qryReqId, r.pageSize, space, mapQrys, topVer, extraSpaces, null),
partsMap)) {
awaitAllReplies(r, nodes);
Object state = r.state.get();
if (state != null) {
if (state instanceof CacheException) {
CacheException err = (CacheException) state;
if (err.getCause() instanceof IgniteClientDisconnectedException) throw err;
throw new CacheException("Failed to run map query remotely.", err);
}
if (state instanceof AffinityTopologyVersion) {
retry = true;
// If remote node asks us to retry then we have outdated full partition map.
h2.awaitForReadyTopologyVersion((AffinityTopologyVersion) state);
}
}
} else // Send failed.
retry = true;
Iterator<List<?>> resIter = null;
if (!retry) {
if (qry.explain()) return explainPlan(r.conn, space, qry);
if (skipMergeTbl) {
List<List<?>> res = new ArrayList<>();
assert r.idxs.size() == 1 : r.idxs;
GridMergeIndex idx = r.idxs.get(0);
Cursor cur = idx.findInStream(null, null);
while (cur.next()) {
Row row = cur.get();
int cols = row.getColumnCount();
List<Object> resRow = new ArrayList<>(cols);
for (int c = 0; c < cols; c++) resRow.add(row.getValue(c).getObject());
res.add(resRow);
}
resIter = res.iterator();
} else {
GridCacheSqlQuery rdc = qry.reduceQuery();
// Statement caching is prohibited here because we can't guarantee correct merge index
// reuse.
ResultSet res =
h2.executeSqlQueryWithTimer(
space, r.conn, rdc.query(), F.asList(rdc.parameters()), false);
resIter = new Iter(res);
}
}
for (GridMergeIndex idx : r.idxs) {
if (!idx.fetchedAll()) // We have to explicitly cancel queries on remote nodes.
send(nodes, new GridQueryCancelRequest(qryReqId), null);
}
if (retry) {
if (Thread.currentThread().isInterrupted())
throw new IgniteInterruptedCheckedException("Query was interrupted.");
continue;
}
return new GridQueryCacheObjectsIterator(resIter, cctx, keepPortable);
} catch (IgniteCheckedException | RuntimeException e) {
U.closeQuiet(r.conn);
if (e instanceof CacheException) throw (CacheException) e;
Throwable cause = e;
if (e instanceof IgniteCheckedException) {
Throwable disconnectedErr =
((IgniteCheckedException) e).getCause(IgniteClientDisconnectedException.class);
if (disconnectedErr != null) cause = disconnectedErr;
}
throw new CacheException("Failed to run reduce query locally.", cause);
} finally {
if (!runs.remove(qryReqId, r)) U.warn(log, "Query run was already removed: " + qryReqId);
if (!skipMergeTbl) {
for (int i = 0, mapQrys = qry.mapQueries().size(); i < mapQrys; i++)
fakeTable(null, i).setInnerTable(null); // Drop all merge tables.
}
}
}
}
/** {@inheritDoc} */
@SuppressWarnings("ErrorNotRethrown")
@Override
public IpcEndpoint accept() throws IgniteCheckedException {
while (!Thread.currentThread().isInterrupted()) {
Socket sock = null;
boolean accepted = false;
try {
sock = srvSock.accept();
accepted = true;
InputStream inputStream = sock.getInputStream();
ObjectInputStream in = new ObjectInputStream(inputStream);
ObjectOutputStream out = new ObjectOutputStream(sock.getOutputStream());
IpcSharedMemorySpace inSpace = null;
IpcSharedMemorySpace outSpace = null;
boolean err = true;
try {
IpcSharedMemoryInitRequest req = (IpcSharedMemoryInitRequest) in.readObject();
if (log.isDebugEnabled()) log.debug("Processing request: " + req);
IgnitePair<String> p = inOutToken(req.pid(), size);
String file1 = p.get1();
String file2 = p.get2();
assert file1 != null;
assert file2 != null;
// Create tokens.
new File(file1).createNewFile();
new File(file2).createNewFile();
if (log.isDebugEnabled()) log.debug("Created token files: " + p);
inSpace = new IpcSharedMemorySpace(file1, req.pid(), pid, size, true, log);
outSpace = new IpcSharedMemorySpace(file2, pid, req.pid(), size, false, log);
IpcSharedMemoryClientEndpoint ret =
new IpcSharedMemoryClientEndpoint(inSpace, outSpace, log);
out.writeObject(
new IpcSharedMemoryInitResponse(
file2, outSpace.sharedMemoryId(), file1, inSpace.sharedMemoryId(), pid, size));
err = !in.readBoolean();
endpoints.add(ret);
return ret;
} catch (UnsatisfiedLinkError e) {
throw IpcSharedMemoryUtils.linkError(e);
} catch (IOException e) {
if (log.isDebugEnabled())
log.debug(
"Failed to process incoming connection "
+ "(was connection closed by another party):"
+ e.getMessage());
} catch (ClassNotFoundException e) {
U.error(log, "Failed to process incoming connection.", e);
} catch (ClassCastException e) {
String msg =
"Failed to process incoming connection (most probably, shared memory "
+ "rest endpoint has been configured by mistake).";
LT.warn(log, null, msg);
sendErrorResponse(out, e);
} catch (IpcOutOfSystemResourcesException e) {
if (!omitOutOfResourcesWarn) LT.warn(log, null, OUT_OF_RESOURCES_MSG);
sendErrorResponse(out, e);
} catch (IgniteCheckedException e) {
LT.error(log, e, "Failed to process incoming shared memory connection.");
sendErrorResponse(out, e);
} finally {
// Exception has been thrown, need to free system resources.
if (err) {
if (inSpace != null) inSpace.forceClose();
// Safety.
if (outSpace != null) outSpace.forceClose();
}
}
} catch (IOException e) {
if (!Thread.currentThread().isInterrupted() && !accepted)
throw new IgniteCheckedException("Failed to accept incoming connection.", e);
if (!closed)
LT.error(
log, null, "Failed to process incoming shared memory connection: " + e.getMessage());
} finally {
U.closeQuiet(sock);
}
} // while
throw new IgniteInterruptedCheckedException("Socket accept was interrupted.");
}