Package com.datastax.cassandra.transport.messages

Examples of com.datastax.cassandra.transport.messages.QueryMessage

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        long start = System.nanoTime();
        long elapsed = 0;
        while (elapsed < MAX_SCHEMA_AGREEMENT_WAIT_MS) {

            ResultSetFuture peersFuture = new ResultSetFuture(null, new QueryMessage(SELECT_SCHEMA_PEERS, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
            ResultSetFuture localFuture = new ResultSetFuture(null, new QueryMessage(SELECT_SCHEMA_LOCAL, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
            connection.write(peersFuture.callback);
            connection.write(localFuture.callback);

            Set<UUID> versions = new HashSet<UUID>();
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            if (table != null)
                whereClause += " AND columnfamily_name = '" + table + "'";
        }

        ResultSetFuture ksFuture = table == null
                                 ? new ResultSetFuture(null, new QueryMessage(SELECT_KEYSPACES + whereClause, ConsistencyLevel.DEFAULT_CASSANDRA_CL))
                                 : null;
        ResultSetFuture cfFuture = new ResultSetFuture(null, new QueryMessage(SELECT_COLUMN_FAMILIES + whereClause, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
        ResultSetFuture colsFuture = new ResultSetFuture(null, new QueryMessage(SELECT_COLUMNS + whereClause, ConsistencyLevel.DEFAULT_CASSANDRA_CL));

        if (ksFuture != null)
            connection.write(ksFuture.callback);
        connection.write(cfFuture.callback);
        connection.write(colsFuture.callback);
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    }

    private void refreshNodeListAndTokenMap(Connection connection) throws ConnectionException, BusyConnectionException, ExecutionException, InterruptedException {
        // Make sure we're up to date on nodes and tokens

        ResultSetFuture peersFuture = new ResultSetFuture(null, new QueryMessage(SELECT_PEERS, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
        ResultSetFuture localFuture = new ResultSetFuture(null, new QueryMessage(SELECT_LOCAL, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
        connection.write(peersFuture.callback);
        connection.write(localFuture.callback);

        String partitioner = null;
        Map<Host, Collection<String>> tokenMap = new HashMap<Host, Collection<String>>();
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        long start = System.nanoTime();
        long elapsed = 0;
        while (elapsed < MAX_SCHEMA_AGREEMENT_WAIT_MS) {

            ResultSetFuture peersFuture = new ResultSetFuture(null, new QueryMessage(SELECT_SCHEMA_PEERS, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
            ResultSetFuture localFuture = new ResultSetFuture(null, new QueryMessage(SELECT_SCHEMA_LOCAL, ConsistencyLevel.DEFAULT_CASSANDRA_CL));
            connection.write(peersFuture.callback);
            connection.write(localFuture.callback);

            Set<UUID> versions = new HashSet<UUID>();
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            // the coordinator log in the trace. Since the duration is the last thing the coordinator log, that's
            // what we check to know if the trace is "complete" (again, it may not contain the log of replicas).
            while (duration == Integer.MIN_VALUE && tries <= MAX_TRIES) {
                ++tries;

                ResultSetFuture sessionsFuture = session.executeQuery(new QueryMessage(String.format(SELECT_SESSIONS_FORMAT, traceId), ConsistencyLevel.DEFAULT_CASSANDRA_CL), Query.DEFAULT);
                ResultSetFuture eventsFuture = session.executeQuery(new QueryMessage(String.format(SELECT_EVENTS_FORMAT, traceId), ConsistencyLevel.DEFAULT_CASSANDRA_CL), Query.DEFAULT);

                Row sessRow = sessionsFuture.get().one();
                if (sessRow != null && !sessRow.isNull("duration")) {

                    requestType = sessRow.getString("request");
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Related Classes of com.datastax.cassandra.transport.messages.QueryMessage

  • com.datastax.driver.core.Connection
  • com.datastax.driver.core.ControlConnection
  • com.datastax.driver.core.QueryTrace
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