use of org.apache.ignite.internal.processors.query.h2.sql.GridSqlOperationType.AND in project ignite by apache.
the class GridReduceQueryExecutor method query.
/**
* @param schemaName Schema name.
* @param qry Query.
* @param keepBinary Keep binary.
* @param enforceJoinOrder Enforce join order of tables.
* @param timeoutMillis Timeout in milliseconds.
* @param cancel Query cancel.
* @param params Query parameters.
* @param parts Partitions.
* @param lazy Lazy execution flag.
* @return Rows iterator.
*/
public Iterator<List<?>> query(String schemaName, final GridCacheTwoStepQuery qry, boolean keepBinary, boolean enforceJoinOrder, int timeoutMillis, GridQueryCancel cancel, Object[] params, final int[] parts, boolean lazy) {
if (F.isEmpty(params))
params = EMPTY_PARAMS;
final boolean isReplicatedOnly = qry.isReplicatedOnly();
// Fail if all caches are replicated and explicit partitions are set.
for (int attempt = 0; ; attempt++) {
if (attempt != 0) {
try {
// Wait for exchange.
Thread.sleep(attempt * 10);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new CacheException("Query was interrupted.", e);
}
}
final long qryReqId = qryIdGen.incrementAndGet();
final ReduceQueryRun r = new ReduceQueryRun(qryReqId, qry.originalSql(), schemaName, h2.connectionForSchema(schemaName), qry.mapQueries().size(), qry.pageSize(), U.currentTimeMillis(), cancel);
AffinityTopologyVersion topVer = h2.readyTopologyVersion();
// Check if topology is changed while retrying on locked topology.
if (h2.serverTopologyChanged(topVer) && ctx.cache().context().lockedTopologyVersion(null) != null) {
throw new CacheException(new TransactionException("Server topology is changed during query " + "execution inside a transaction. It's recommended to rollback and retry transaction."));
}
List<Integer> cacheIds = qry.cacheIds();
Collection<ClusterNode> nodes;
// Explicit partition mapping for unstable topology.
Map<ClusterNode, IntArray> partsMap = null;
// Explicit partitions mapping for query.
Map<ClusterNode, IntArray> qryMap = null;
// Partitions are not supported for queries over all replicated caches.
if (parts != null) {
boolean replicatedOnly = true;
for (Integer cacheId : cacheIds) {
if (!cacheContext(cacheId).isReplicated()) {
replicatedOnly = false;
break;
}
}
if (replicatedOnly)
throw new CacheException("Partitions are not supported for replicated caches");
}
if (qry.isLocal())
nodes = singletonList(ctx.discovery().localNode());
else {
NodesForPartitionsResult nodesParts = nodesForPartitions(cacheIds, topVer, parts, isReplicatedOnly);
nodes = nodesParts.nodes();
partsMap = nodesParts.partitionsMap();
qryMap = nodesParts.queryPartitionsMap();
if (nodes == null)
// Retry.
continue;
assert !nodes.isEmpty();
if (isReplicatedOnly || qry.explain()) {
ClusterNode locNode = ctx.discovery().localNode();
// Always prefer local node if possible.
if (nodes.contains(locNode))
nodes = singletonList(locNode);
else {
// Select random data node to run query on a replicated data or
// get EXPLAIN PLAN from a single node.
nodes = singletonList(F.rand(nodes));
}
}
}
int tblIdx = 0;
final boolean skipMergeTbl = !qry.explain() && qry.skipMergeTable();
final int segmentsPerIndex = qry.explain() || isReplicatedOnly ? 1 : findFirstPartitioned(cacheIds).config().getQueryParallelism();
int replicatedQrysCnt = 0;
final Collection<ClusterNode> finalNodes = nodes;
for (GridCacheSqlQuery mapQry : qry.mapQueries()) {
GridMergeIndex idx;
if (!skipMergeTbl) {
GridMergeTable tbl;
try {
tbl = createMergeTable(r.connection(), mapQry, qry.explain());
} catch (IgniteCheckedException e) {
throw new IgniteException(e);
}
idx = tbl.getMergeIndex();
fakeTable(r.connection(), tblIdx++).innerTable(tbl);
} else
idx = GridMergeIndexUnsorted.createDummy(ctx);
// If the query has only replicated tables, we have to run it on a single node only.
if (!mapQry.isPartitioned()) {
ClusterNode node = F.rand(nodes);
mapQry.node(node.id());
replicatedQrysCnt++;
// Replicated tables can have only 1 segment.
idx.setSources(singletonList(node), 1);
} else
idx.setSources(nodes, segmentsPerIndex);
idx.setPageSize(r.pageSize());
r.indexes().add(idx);
}
r.latch(new CountDownLatch(isReplicatedOnly ? 1 : (r.indexes().size() - replicatedQrysCnt) * nodes.size() * segmentsPerIndex + replicatedQrysCnt));
runs.put(qryReqId, r);
boolean release = true;
try {
cancel.checkCancelled();
if (ctx.clientDisconnected()) {
throw new CacheException("Query was cancelled, client node disconnected.", new IgniteClientDisconnectedException(ctx.cluster().clientReconnectFuture(), "Client node disconnected."));
}
List<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()).parameterIndexes(mapQry.parameterIndexes()));
}
final boolean distributedJoins = qry.distributedJoins();
cancel.set(new Runnable() {
@Override
public void run() {
send(finalNodes, new GridQueryCancelRequest(qryReqId), null, false);
}
});
boolean retry = false;
// Always enforce join order on map side to have consistent behavior.
int flags = GridH2QueryRequest.FLAG_ENFORCE_JOIN_ORDER;
if (distributedJoins)
flags |= GridH2QueryRequest.FLAG_DISTRIBUTED_JOINS;
if (qry.isLocal())
flags |= GridH2QueryRequest.FLAG_IS_LOCAL;
if (qry.explain())
flags |= GridH2QueryRequest.FLAG_EXPLAIN;
if (isReplicatedOnly)
flags |= GridH2QueryRequest.FLAG_REPLICATED;
if (lazy && mapQrys.size() == 1)
flags |= GridH2QueryRequest.FLAG_LAZY;
GridH2QueryRequest req = new GridH2QueryRequest().requestId(qryReqId).topologyVersion(topVer).pageSize(r.pageSize()).caches(qry.cacheIds()).tables(distributedJoins ? qry.tables() : null).partitions(convert(partsMap)).queries(mapQrys).parameters(params).flags(flags).timeout(timeoutMillis).schemaName(schemaName);
if (send(nodes, req, parts == null ? null : new ExplicitPartitionsSpecializer(qryMap), false)) {
awaitAllReplies(r, nodes, cancel);
Object state = r.state();
if (state != null) {
if (state instanceof CacheException) {
CacheException err = (CacheException) state;
if (err.getCause() instanceof IgniteClientDisconnectedException)
throw err;
if (wasCancelled(err))
// Throw correct exception.
throw new QueryCancelledException();
throw new CacheException("Failed to run map query remotely." + err.getMessage(), 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 (skipMergeTbl) {
resIter = new GridMergeIndexIterator(this, finalNodes, r, qryReqId, qry.distributedJoins());
release = false;
} else {
cancel.checkCancelled();
UUID locNodeId = ctx.localNodeId();
H2Utils.setupConnection(r.connection(), false, enforceJoinOrder);
GridH2QueryContext.set(new GridH2QueryContext(locNodeId, locNodeId, qryReqId, REDUCE).pageSize(r.pageSize()).distributedJoinMode(OFF));
try {
if (qry.explain())
return explainPlan(r.connection(), qry, params);
GridCacheSqlQuery rdc = qry.reduceQuery();
ResultSet res = h2.executeSqlQueryWithTimer(r.connection(), rdc.query(), F.asList(rdc.parameters(params)), // The statement will cache some extra thread local objects.
false, timeoutMillis, cancel);
resIter = new H2FieldsIterator(res);
} finally {
GridH2QueryContext.clearThreadLocal();
}
}
}
if (retry) {
if (Thread.currentThread().isInterrupted())
throw new IgniteInterruptedCheckedException("Query was interrupted.");
continue;
}
return new GridQueryCacheObjectsIterator(resIter, h2.objectContext(), keepBinary);
} catch (IgniteCheckedException | RuntimeException e) {
release = true;
U.closeQuiet(r.connection());
if (e instanceof CacheException) {
if (wasCancelled((CacheException) e))
throw new CacheException("Failed to run reduce query locally.", new QueryCancelledException());
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 (release) {
releaseRemoteResources(finalNodes, r, qryReqId, qry.distributedJoins());
if (!skipMergeTbl) {
for (int i = 0, mapQrys = qry.mapQueries().size(); i < mapQrys; i++) // Drop all merge tables.
fakeTable(null, i).innerTable(null);
}
}
}
}
}
use of org.apache.ignite.internal.processors.query.h2.sql.GridSqlOperationType.AND in project ignite by apache.
the class IgniteH2Indexing method dropTable.
/**
* Drops table form h2 database and clear all related indexes (h2 text, lucene).
*
* @param tbl Table to unregister.
* @throws IgniteCheckedException If failed to unregister.
*/
private void dropTable(H2TableDescriptor tbl) throws IgniteCheckedException {
assert tbl != null;
if (log.isDebugEnabled())
log.debug("Removing query index table: " + tbl.fullTableName());
Connection c = connectionForThread(tbl.schemaName());
Statement stmt = null;
try {
stmt = c.createStatement();
String sql = "DROP TABLE IF EXISTS " + tbl.fullTableName();
if (log.isDebugEnabled())
log.debug("Dropping database index table with SQL: " + sql);
stmt.executeUpdate(sql);
} catch (SQLException e) {
onSqlException();
throw new IgniteSQLException("Failed to drop database index table [type=" + tbl.type().name() + ", table=" + tbl.fullTableName() + "]", IgniteQueryErrorCode.TABLE_DROP_FAILED, e);
} finally {
U.close(stmt, log);
}
}
use of org.apache.ignite.internal.processors.query.h2.sql.GridSqlOperationType.AND in project ignite by apache.
the class IgniteH2Indexing method addInitialUserIndex.
/**
* Add initial user index.
*
* @param schemaName Schema name.
* @param desc Table descriptor.
* @param h2Idx User index.
* @throws IgniteCheckedException If failed.
*/
private void addInitialUserIndex(String schemaName, H2TableDescriptor desc, GridH2IndexBase h2Idx) throws IgniteCheckedException {
GridH2Table h2Tbl = desc.table();
h2Tbl.proposeUserIndex(h2Idx);
try {
String sql = H2Utils.indexCreateSql(desc.fullTableName(), h2Idx, false);
executeSql(schemaName, sql);
} catch (Exception e) {
// Rollback and re-throw.
h2Tbl.rollbackUserIndex(h2Idx.getName());
throw e;
}
}
use of org.apache.ignite.internal.processors.query.h2.sql.GridSqlOperationType.AND in project ignite by apache.
the class IgniteH2Indexing method dynamicIndexCreate.
/**
* {@inheritDoc}
*/
@Override
public void dynamicIndexCreate(final String schemaName, final String tblName, final QueryIndexDescriptorImpl idxDesc, boolean ifNotExists, SchemaIndexCacheVisitor cacheVisitor) throws IgniteCheckedException {
// Locate table.
H2Schema schema = schemas.get(schemaName);
H2TableDescriptor desc = (schema != null ? schema.tableByName(tblName) : null);
if (desc == null)
throw new IgniteCheckedException("Table not found in internal H2 database [schemaName=" + schemaName + ", tblName=" + tblName + ']');
GridH2Table h2Tbl = desc.table();
// Create index.
final GridH2IndexBase h2Idx = desc.createUserIndex(idxDesc);
h2Tbl.proposeUserIndex(h2Idx);
try {
// Populate index with existing cache data.
final GridH2RowDescriptor rowDesc = h2Tbl.rowDescriptor();
SchemaIndexCacheVisitorClosure clo = new SchemaIndexCacheVisitorClosure() {
@Override
public void apply(CacheDataRow row) throws IgniteCheckedException {
GridH2Row h2Row = rowDesc.createRow(row);
h2Idx.putx(h2Row);
}
};
cacheVisitor.visit(clo);
// At this point index is in consistent state, promote it through H2 SQL statement, so that cached
// prepared statements are re-built.
String sql = H2Utils.indexCreateSql(desc.fullTableName(), h2Idx, ifNotExists);
executeSql(schemaName, sql);
} catch (Exception e) {
// Rollback and re-throw.
h2Tbl.rollbackUserIndex(h2Idx.getName());
throw e;
}
}
use of org.apache.ignite.internal.processors.query.h2.sql.GridSqlOperationType.AND in project ignite by apache.
the class IgniteH2Indexing method bindPartitionInfoParameter.
/**
* Bind query parameter to partition info and calculate partition.
*
* @param partInfo Partition Info.
* @param params Query parameters.
* @return Partition.
* @throws IgniteCheckedException, If fails.
*/
private int bindPartitionInfoParameter(CacheQueryPartitionInfo partInfo, Object[] params) throws IgniteCheckedException {
assert partInfo != null;
assert partInfo.partition() < 0;
GridH2RowDescriptor desc = dataTable(schema(partInfo.cacheName()), partInfo.tableName()).rowDescriptor();
Object param = H2Utils.convert(params[partInfo.paramIdx()], desc, partInfo.dataType());
return kernalContext().affinity().partition(partInfo.cacheName(), param);
}
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