Examples with ServerCachingService org.apache.phoenix.coprocessor.generated.ServerCachingProtos.ServerCachingService used on opensource projects

Example 1 with ServerCachingService

use of org.apache.phoenix.coprocessor.generated.ServerCachingProtos.ServerCachingService in project phoenix by apache.

the class ServerCacheClient method addServerCache.

public ServerCache addServerCache(ScanRanges keyRanges, final ImmutableBytesWritable cachePtr, final byte[] txState, final ServerCacheFactory cacheFactory, final TableRef cacheUsingTableRef) throws SQLException {
    ConnectionQueryServices services = connection.getQueryServices();
    MemoryChunk chunk = services.getMemoryManager().allocate(cachePtr.getLength());
    List<Closeable> closeables = new ArrayList<Closeable>();
    closeables.add(chunk);
    ServerCache hashCacheSpec = null;
    SQLException firstException = null;
    final byte[] cacheId = generateId();
    /**
         * Execute EndPoint in parallel on each server to send compressed hash cache 
         */
    // TODO: generalize and package as a per region server EndPoint caller
    // (ideally this would be functionality provided by the coprocessor framework)
    boolean success = false;
    ExecutorService executor = services.getExecutor();
    List<Future<Boolean>> futures = Collections.emptyList();
    try {
        final PTable cacheUsingTable = cacheUsingTableRef.getTable();
        List<HRegionLocation> locations = services.getAllTableRegions(cacheUsingTable.getPhysicalName().getBytes());
        int nRegions = locations.size();
        // Size these based on worst case
        futures = new ArrayList<Future<Boolean>>(nRegions);
        Set<HRegionLocation> servers = new HashSet<HRegionLocation>(nRegions);
        for (HRegionLocation entry : locations) {
            // Keep track of servers we've sent to and only send once
            byte[] regionStartKey = entry.getRegionInfo().getStartKey();
            byte[] regionEndKey = entry.getRegionInfo().getEndKey();
            if (!servers.contains(entry) && keyRanges.intersectRegion(regionStartKey, regionEndKey, cacheUsingTable.getIndexType() == IndexType.LOCAL)) {
                // Call RPC once per server
                servers.add(entry);
                if (LOG.isDebugEnabled()) {
                    LOG.debug(addCustomAnnotations("Adding cache entry to be sent for " + entry, connection));
                }
                final byte[] key = getKeyInRegion(entry.getRegionInfo().getStartKey());
                final HTableInterface htable = services.getTable(cacheUsingTableRef.getTable().getPhysicalName().getBytes());
                closeables.add(htable);
                futures.add(executor.submit(new JobCallable<Boolean>() {

                    @Override
                    public Boolean call() throws Exception {
                        final Map<byte[], AddServerCacheResponse> results;
                        try {
                            results = htable.coprocessorService(ServerCachingService.class, key, key, new Batch.Call<ServerCachingService, AddServerCacheResponse>() {

                                @Override
                                public AddServerCacheResponse call(ServerCachingService instance) throws IOException {
                                    ServerRpcController controller = new ServerRpcController();
                                    BlockingRpcCallback<AddServerCacheResponse> rpcCallback = new BlockingRpcCallback<AddServerCacheResponse>();
                                    AddServerCacheRequest.Builder builder = AddServerCacheRequest.newBuilder();
                                    final byte[] tenantIdBytes;
                                    if (cacheUsingTable.isMultiTenant()) {
                                        try {
                                            tenantIdBytes = connection.getTenantId() == null ? null : ScanUtil.getTenantIdBytes(cacheUsingTable.getRowKeySchema(), cacheUsingTable.getBucketNum() != null, connection.getTenantId(), cacheUsingTable.getViewIndexId() != null);
                                        } catch (SQLException e) {
                                            throw new IOException(e);
                                        }
                                    } else {
                                        tenantIdBytes = connection.getTenantId() == null ? null : connection.getTenantId().getBytes();
                                    }
                                    if (tenantIdBytes != null) {
                                        builder.setTenantId(ByteStringer.wrap(tenantIdBytes));
                                    }
                                    builder.setCacheId(ByteStringer.wrap(cacheId));
                                    builder.setCachePtr(org.apache.phoenix.protobuf.ProtobufUtil.toProto(cachePtr));
                                    builder.setHasProtoBufIndexMaintainer(true);
                                    ServerCacheFactoryProtos.ServerCacheFactory.Builder svrCacheFactoryBuider = ServerCacheFactoryProtos.ServerCacheFactory.newBuilder();
                                    svrCacheFactoryBuider.setClassName(cacheFactory.getClass().getName());
                                    builder.setCacheFactory(svrCacheFactoryBuider.build());
                                    builder.setTxState(ByteStringer.wrap(txState));
                                    instance.addServerCache(controller, builder.build(), rpcCallback);
                                    if (controller.getFailedOn() != null) {
                                        throw controller.getFailedOn();
                                    }
                                    return rpcCallback.get();
                                }
                            });
                        } catch (Throwable t) {
                            throw new Exception(t);
                        }
                        if (results != null && results.size() == 1) {
                            return results.values().iterator().next().getReturn();
                        }
                        return false;
                    }

                    /**
                         * Defines the grouping for round robin behavior.  All threads spawned to process
                         * this scan will be grouped together and time sliced with other simultaneously
                         * executing parallel scans.
                         */
                    @Override
                    public Object getJobId() {
                        return ServerCacheClient.this;
                    }

                    @Override
                    public TaskExecutionMetricsHolder getTaskExecutionMetric() {
                        return NO_OP_INSTANCE;
                    }
                }));
            } else {
                if (LOG.isDebugEnabled()) {
                    LOG.debug(addCustomAnnotations("NOT adding cache entry to be sent for " + entry + " since one already exists for that entry", connection));
                }
            }
        }
        hashCacheSpec = new ServerCache(cacheId, servers, cachePtr.getLength());
        // Execute in parallel
        int timeoutMs = services.getProps().getInt(QueryServices.THREAD_TIMEOUT_MS_ATTRIB, QueryServicesOptions.DEFAULT_THREAD_TIMEOUT_MS);
        for (Future<Boolean> future : futures) {
            future.get(timeoutMs, TimeUnit.MILLISECONDS);
        }
        cacheUsingTableRefMap.put(Bytes.mapKey(cacheId), cacheUsingTableRef);
        success = true;
    } catch (SQLException e) {
        firstException = e;
    } catch (Exception e) {
        firstException = new SQLException(e);
    } finally {
        try {
            if (!success) {
                SQLCloseables.closeAllQuietly(Collections.singletonList(hashCacheSpec));
                for (Future<Boolean> future : futures) {
                    future.cancel(true);
                }
            }
        } finally {
            try {
                Closeables.closeAll(closeables);
            } catch (IOException e) {
                if (firstException == null) {
                    firstException = new SQLException(e);
                }
            } finally {
                if (firstException != null) {
                    throw firstException;
                }
            }
        }
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug(addCustomAnnotations("Cache " + cacheId + " successfully added to servers.", connection));
    }
    return hashCacheSpec;
}

Example 2 with ServerCachingService

use of org.apache.phoenix.coprocessor.generated.ServerCachingProtos.ServerCachingService in project phoenix by apache.

the class ServerCacheClient method removeServerCache.

/**
     * Remove the cached table from all region servers
     * @param cacheId unique identifier for the hash join (returned from {@link #addHashCache(HTable, Scan, Set)})
     * @param servers list of servers upon which table was cached (filled in by {@link #addHashCache(HTable, Scan, Set)})
     * @throws SQLException
     * @throws IllegalStateException if hashed table cannot be removed on any region server on which it was added
     */
private void removeServerCache(final byte[] cacheId, Set<HRegionLocation> servers) throws SQLException {
    ConnectionQueryServices services = connection.getQueryServices();
    Throwable lastThrowable = null;
    TableRef cacheUsingTableRef = cacheUsingTableRefMap.get(Bytes.mapKey(cacheId));
    final PTable cacheUsingTable = cacheUsingTableRef.getTable();
    byte[] tableName = cacheUsingTableRef.getTable().getPhysicalName().getBytes();
    HTableInterface iterateOverTable = services.getTable(tableName);
    try {
        List<HRegionLocation> locations = services.getAllTableRegions(tableName);
        Set<HRegionLocation> remainingOnServers = new HashSet<HRegionLocation>(servers);
        /**
    		 * Allow for the possibility that the region we based where to send our cache has split and been
    		 * relocated to another region server *after* we sent it, but before we removed it. To accommodate
    		 * this, we iterate through the current metadata boundaries and remove the cache once for each
    		 * server that we originally sent to.
    		 */
        if (LOG.isDebugEnabled()) {
            LOG.debug(addCustomAnnotations("Removing Cache " + cacheId + " from servers.", connection));
        }
        for (HRegionLocation entry : locations) {
            if (remainingOnServers.contains(entry)) {
                // Call once per server
                try {
                    byte[] key = getKeyInRegion(entry.getRegionInfo().getStartKey());
                    iterateOverTable.coprocessorService(ServerCachingService.class, key, key, new Batch.Call<ServerCachingService, RemoveServerCacheResponse>() {

                        @Override
                        public RemoveServerCacheResponse call(ServerCachingService instance) throws IOException {
                            ServerRpcController controller = new ServerRpcController();
                            BlockingRpcCallback<RemoveServerCacheResponse> rpcCallback = new BlockingRpcCallback<RemoveServerCacheResponse>();
                            RemoveServerCacheRequest.Builder builder = RemoveServerCacheRequest.newBuilder();
                            final byte[] tenantIdBytes;
                            if (cacheUsingTable.isMultiTenant()) {
                                try {
                                    tenantIdBytes = connection.getTenantId() == null ? null : ScanUtil.getTenantIdBytes(cacheUsingTable.getRowKeySchema(), cacheUsingTable.getBucketNum() != null, connection.getTenantId(), cacheUsingTable.getViewIndexId() != null);
                                } catch (SQLException e) {
                                    throw new IOException(e);
                                }
                            } else {
                                tenantIdBytes = connection.getTenantId() == null ? null : connection.getTenantId().getBytes();
                            }
                            if (tenantIdBytes != null) {
                                builder.setTenantId(ByteStringer.wrap(tenantIdBytes));
                            }
                            builder.setCacheId(ByteStringer.wrap(cacheId));
                            instance.removeServerCache(controller, builder.build(), rpcCallback);
                            if (controller.getFailedOn() != null) {
                                throw controller.getFailedOn();
                            }
                            return rpcCallback.get();
                        }
                    });
                    remainingOnServers.remove(entry);
                } catch (Throwable t) {
                    lastThrowable = t;
                    LOG.error(addCustomAnnotations("Error trying to remove hash cache for " + entry, connection), t);
                }
            }
        }
        if (!remainingOnServers.isEmpty()) {
            LOG.warn(addCustomAnnotations("Unable to remove hash cache for " + remainingOnServers, connection), lastThrowable);
        }
    } finally {
        Closeables.closeQuietly(iterateOverTable);
    }
}