Examples with IndexedJournal com.questdb.net.ha.model.IndexedJournal used on opensource projects

Example 6 with IndexedJournal

use of com.questdb.net.ha.model.IndexedJournal in project questdb by bluestreak01.

the class JournalSymbolTableTest method executeSequence.

private void executeSequence(boolean expectContent) throws JournalNetworkException {
    journalClientStateProducer.write(channel, new IndexedJournal(0, slave));
    journalClientStateConsumer.read(channel);
    journalSymbolTableProducer.configure(master.find(journalClientStateConsumer.getValue().getTxn(), journalClientStateConsumer.getValue().getTxPin()));
    Assert.assertEquals(expectContent, journalSymbolTableProducer.hasContent());
    if (expectContent) {
        journalSymbolTableProducer.write(channel);
        journalSymbolTableConsumer.read(channel);
        TestUtils.compareSymbolTables(master, slave);
    }
}

Example 7 with IndexedJournal

use of com.questdb.net.ha.model.IndexedJournal in project questdb by bluestreak01.

the class JournalClient method sendState.

private void sendState() throws JournalNetworkException {
    for (int i = 0, sz = writers.size(); i < sz; i++) {
        if (statusSentList.get(i) == 0) {
            commandProducer.write(channel, Command.DELTA_REQUEST_CMD);
            journalClientStateProducer.write(channel, new IndexedJournal(i, writers.getQuick(i)));
            checkAck();
            statusSentList.setQuick(i, 1);
        }
    }
}

Example 8 with IndexedJournal

use of com.questdb.net.ha.model.IndexedJournal in project questdb by bluestreak01.

the class JournalClient method subscribeOne.

private void subscribeOne(int index, SubscriptionHolder holder, String name, boolean newSubscription) {
    if (newSubscription) {
        SubscriptionHolder sub = new SubscriptionHolder();
        sub.local = holder.local;
        sub.remote = holder.remote;
        sub.listener = holder.listener;
        sub.writer = holder.writer;
        subscriptions.add(sub);
    }
    JournalWriter<?> writer = writers.getQuiet(index);
    try {
        commandProducer.write(channel, Command.ADD_KEY_CMD);
        setKeyRequestProducer.write(channel, new IndexedJournalKey(index, holder.remote));
        checkAck();
        // todo: do we really have to use file here?
        JournalMetadata<?> metadata;
        File file = Files.makeTempFile();
        try {
            try (HugeBufferConsumer h = new HugeBufferConsumer(file)) {
                h.read(channel);
                metadata = new JournalMetadata(h.getHb(), name);
            } catch (JournalException e) {
                throw new JournalNetworkException(e);
            }
        } finally {
            Files.delete(file);
        }
        boolean validate = true;
        if (writer == null) {
            if (holder.writer == null) {
                try {
                    writer = factory.writer(metadata);
                } catch (JournalException e) {
                    LOG.error().$("Failed to create writer: ").$(e).$();
                    unsubscribe(index, null, holder, JournalEvents.EVT_JNL_INCOMPATIBLE);
                    return;
                }
                writersToClose.add(writer);
                validate = false;
            } else {
                writer = holder.writer;
            }
            writer.disableCommitOnClose();
            statusSentList.extendAndSet(index, 0);
            deltaConsumers.extendAndSet(index, new JournalDeltaConsumer(writer));
            writers.extendAndSet(index, writer);
            writer.setJournalListener(holder.listener);
        } else {
            statusSentList.setQuick(index, 0);
        }
        if (validate && !metadata.isCompatible(writer.getMetadata(), false)) {
            LOG.error().$("Journal ").$(holder.local.getName()).$(" is not compatible with ").$(holder.remote.getName()).$("(remote)").$();
            unsubscribe(index, writer, holder, JournalEvents.EVT_JNL_INCOMPATIBLE);
            return;
        }
        commandProducer.write(channel, Command.DELTA_REQUEST_CMD);
        journalClientStateProducer.write(channel, new IndexedJournal(index, writer));
        checkAck();
        statusSentList.setQuick(index, 1);
        if (holder.listener != null) {
            holder.listener.onEvent(JournalEvents.EVT_JNL_SUBSCRIBED);
        }
        LOG.info().$("Subscribed ").$(name).$(" to ").$(holder.remote.getName()).$("(remote)").$();
    } catch (JournalNetworkException e) {
        LOG.error().$("Failed to subscribe ").$(name).$(" to ").$(holder.remote.getName()).$("(remote)").$();
        unsubscribe(index, writer, holder, JournalEvents.EVT_JNL_SERVER_ERROR);
    }
}