Examples with NotFoundException org.apache.cassandra.thrift.NotFoundException used on opensource projects

Example 6 with NotFoundException

use of org.apache.cassandra.thrift.NotFoundException in project brisk by riptano.

the class TrackerManager method getCurrentJobtrackerLocation.

/**
 * Retrieves the current job tracker IP.
 *
 * @return the current job tracker IP
 * @throws TrackerManagerException
 */
public static InetAddress getCurrentJobtrackerLocation() throws TrackerManagerException {
    ReadCommand rc = new SliceByNamesReadCommand(BriskSchema.KEYSPACE_NAME, currentJobtrackerKey, cp, Arrays.asList(columnName));
    String result;
    try {
        List<Row> rows = StorageProxy.read(Arrays.asList(rc), ConsistencyLevel.QUORUM);
        IColumn col = validateAndGetColumn(rows, columnName);
        // ByteBuffer util duplicates for us the value.
        result = ByteBufferUtil.string(col.value());
        return InetAddress.getByName(result);
    } catch (NotFoundException e) {
        return null;
    } catch (Exception e) {
        throw new TrackerManagerException(e);
    }
}

Example 7 with NotFoundException

use of org.apache.cassandra.thrift.NotFoundException in project titan by thinkaurelius.

the class CassandraThriftStoreManager method ensureKeyspaceExists.

private KsDef ensureKeyspaceExists(String keyspaceName) throws NotFoundException, InvalidRequestException, TException, SchemaDisagreementException, StorageException {
    CTConnection connection = null;
    try {
        connection = pool.borrowObject(SYSTEM_KS);
        Cassandra.Client client = connection.getClient();
        try {
            // Side effect: throws Exception if keyspaceName doesn't exist
            // Don't remove
            client.set_keyspace(keyspaceName);
            client.set_keyspace(SYSTEM_KS);
            log.debug("Found existing keyspace {}", keyspaceName);
        } catch (InvalidRequestException e) {
            // Keyspace didn't exist; create it
            log.debug("Creating keyspace {}...", keyspaceName);
            KsDef ksdef = new KsDef().setName(keyspaceName).setCf_defs(// cannot be null but can be empty
            new LinkedList<CfDef>()).setStrategy_class("org.apache.cassandra.locator.SimpleStrategy").setStrategy_options(ImmutableMap.of("replication_factor", String.valueOf(replicationFactor)));
            client.set_keyspace(SYSTEM_KS);
            try {
                client.system_add_keyspace(ksdef);
                log.debug("Created keyspace {}", keyspaceName);
            } catch (InvalidRequestException ire) {
                log.error("system_add_keyspace failed for keyspace=" + keyspaceName, ire);
                throw ire;
            }
        }
        return client.describe_keyspace(keyspaceName);
    } catch (Exception e) {
        throw new TemporaryStorageException(e);
    } finally {
        pool.returnObjectUnsafe(SYSTEM_KS, connection);
    }
}

Example 8 with NotFoundException

use of org.apache.cassandra.thrift.NotFoundException in project scale7-pelops by s7.

the class Operand method tryOperation.

protected <ReturnType> ReturnType tryOperation(IOperation<ReturnType> operation, OperandPolicy operandPolicy) throws PelopsException {
    Set<String> avoidNodes = null;
    Exception lastException = null;
    int retries = 0;
    do {
        // Get a connection to a Cassandra node
        IPooledConnection conn = null;
        try {
            conn = thrift.getConnectionExcept(avoidNodes);
        } catch (Exception e) {
            // the pool is responsible for blocking and waiting for a connection, so don't retry
            throw operandPolicy.getExceptionTranslator().translate(e);
        }
        try {
            // Return result!
            return operation.execute(conn);
        } catch (Exception e) {
            // Should we try again?
            if (e instanceof TimedOutException || e instanceof TTransportException || e instanceof UnavailableException) {
                logger.warn("Operation failed as result of network exception. Connection to node {} is being marked as corrupt " + "(and will probably be be destroyed). Cause of failure is {}", conn.getNode().getAddress(), e);
                // This connection is "broken" by network timeout or other problem.
                conn.corrupted();
                // to avoid create the set for every request create the set here
                if (avoidNodes == null)
                    avoidNodes = new HashSet<String>(10);
                avoidNodes.add(conn.getNode().getAddress());
                retries++;
                lastException = e;
            } else if (e instanceof NotFoundException) {
                // Re-throw application-level exceptions immediately.
                throw operandPolicy.getExceptionTranslator().translate(e);
            } else {
                // This connection is "broken" by network timeout or other problem.
                conn.corrupted();
                // Re-throw application-level exceptions immediately.
                throw operandPolicy.getExceptionTranslator().translate(e);
            }
        } finally {
            conn.release();
        }
    } while (retries < operandPolicy.getMaxOpRetries());
    throw operandPolicy.getExceptionTranslator().translate(lastException);
}