Examples with TransactionException org.apache.ignite.transactions.TransactionException used on opensource projects

Example 1 with TransactionException

use of org.apache.ignite.transactions.TransactionException in project ignite by apache.

the class IgniteCacheQueryNodeRestartSelfTest2 method testRestarts.

/**
 * @throws Exception If failed.
 */
public void testRestarts() throws Exception {
    int duration = 90 * 1000;
    int qryThreadNum = 4;
    // 4 + 2 = 6 nodes
    int restartThreadsNum = 2;
    final int nodeLifeTime = 2 * 1000;
    final int logFreq = 10;
    startGridsMultiThreaded(GRID_CNT);
    final AtomicIntegerArray locks = new AtomicIntegerArray(GRID_CNT);
    fillCaches();
    final List<List<?>> pRes = grid(0).cache("pu").query(new SqlFieldsQuery(PARTITIONED_QRY)).getAll();
    Thread.sleep(3000);
    assertEquals(pRes, grid(0).cache("pu").query(new SqlFieldsQuery(PARTITIONED_QRY)).getAll());
    final List<List<?>> rRes = grid(0).cache("co").query(new SqlFieldsQuery(REPLICATED_QRY)).getAll();
    assertFalse(pRes.isEmpty());
    assertFalse(rRes.isEmpty());
    final AtomicInteger qryCnt = new AtomicInteger();
    final AtomicBoolean qrysDone = new AtomicBoolean();
    IgniteInternalFuture<?> fut1 = multithreadedAsync(new CAX() {

        @Override
        public void applyx() throws IgniteCheckedException {
            final GridRandom rnd = new GridRandom();
            while (!qrysDone.get()) {
                int g;
                do {
                    g = rnd.nextInt(locks.length());
                } while (!locks.compareAndSet(g, 0, 1));
                try {
                    final IgniteEx grid = grid(g);
                    if (rnd.nextBoolean()) {
                        // Partitioned query.
                        final IgniteCache<?, ?> cache = grid.cache("pu");
                        final SqlFieldsQuery qry = new SqlFieldsQuery(PARTITIONED_QRY);
                        boolean smallPageSize = rnd.nextBoolean();
                        if (smallPageSize)
                            qry.setPageSize(3);
                        final IgniteCache<Integer, Company> co = grid.cache("co");
                        try {
                            runQuery(grid, new Runnable() {

                                @Override
                                public void run() {
                                    if (rnd.nextBoolean())
                                        // Get lock run test with open transaction.
                                        co.get(rnd.nextInt(COMPANY_CNT));
                                    assertEquals(pRes, cache.query(qry).getAll());
                                }
                            });
                        } catch (CacheException e) {
                            // Interruptions are expected here.
                            if (e.getCause() instanceof IgniteInterruptedCheckedException || e.getCause() instanceof InterruptedException || e.getCause() instanceof ClusterTopologyException || e.getCause() instanceof TransactionTimeoutException || e.getCause() instanceof TransactionException)
                                continue;
                            if (e.getCause() instanceof QueryCancelledException)
                                fail("Retry is expected");
                            if (!smallPageSize)
                                U.error(grid.log(), "On large page size must retry.", e);
                            assertTrue("On large page size must retry.", smallPageSize);
                            boolean failedOnRemoteFetch = false;
                            boolean failedOnInterruption = false;
                            for (Throwable th = e; th != null; th = th.getCause()) {
                                if (th instanceof InterruptedException) {
                                    failedOnInterruption = true;
                                    break;
                                }
                                if (!(th instanceof CacheException))
                                    continue;
                                if (th.getMessage() != null && th.getMessage().startsWith("Failed to fetch data from node:")) {
                                    failedOnRemoteFetch = true;
                                    break;
                                }
                            }
                            // Interruptions are expected here.
                            if (failedOnInterruption)
                                continue;
                            if (!failedOnRemoteFetch) {
                                U.error(grid.log(), "Must fail inside of GridResultPage.fetchNextPage or subclass.", e);
                                fail("Must fail inside of GridResultPage.fetchNextPage or subclass.");
                            }
                        }
                    } else {
                        // Replicated query.
                        IgniteCache<?, ?> cache = grid.cache("co");
                        assertEquals(rRes, cache.query(new SqlFieldsQuery(REPLICATED_QRY)).getAll());
                    }
                } finally {
                    // Clearing lock in final handler to avoid endless loop if exception is thrown.
                    locks.set(g, 0);
                    int c = qryCnt.incrementAndGet();
                    if (c % logFreq == 0)
                        info("Executed queries: " + c);
                }
            }
        }
    }, qryThreadNum, "query-thread");
    final AtomicInteger restartCnt = new AtomicInteger();
    final AtomicBoolean restartsDone = new AtomicBoolean();
    IgniteInternalFuture<?> fut2 = multithreadedAsync(new Callable<Object>() {

        @SuppressWarnings({ "BusyWait" })
        @Override
        public Object call() throws Exception {
            GridRandom rnd = new GridRandom();
            while (!restartsDone.get()) {
                int g;
                do {
                    g = rnd.nextInt(locks.length());
                } while (!locks.compareAndSet(g, 0, -1));
                try {
                    log.info("Stop node: " + g);
                    stopGrid(g);
                    Thread.sleep(rnd.nextInt(nodeLifeTime));
                    log.info("Start node: " + g);
                    startGrid(g);
                    Thread.sleep(rnd.nextInt(nodeLifeTime));
                } finally {
                    locks.set(g, 0);
                    int c = restartCnt.incrementAndGet();
                    if (c % logFreq == 0)
                        info("Node restarts: " + c);
                }
            }
            return true;
        }
    }, restartThreadsNum, "restart-thread");
    Thread.sleep(duration);
    info("Stopping..");
    restartsDone.set(true);
    try {
        fut2.get(20_000);
    } catch (IgniteFutureTimeoutCheckedException e) {
        U.dumpThreads(log);
        fail("Stopping restarts timeout.");
    }
    info("Restarts stopped.");
    qrysDone.set(true);
    // Query thread can stuck in next page waiting loop because all nodes are left.
    try {
        fut1.get(5_000);
    } catch (IgniteFutureTimeoutCheckedException ignored) {
        fut1.cancel();
    }
    info("Queries stopped.");
}

Example 2 with TransactionException

use of org.apache.ignite.transactions.TransactionException 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);
                }
            }
        }
    }
}