Randgalt

randgalt1
Greetings C* people
I have a table that I need a secondary index for. I need to be able to search via a hash. So, high cardinality. I understand that that's not considered best practice for a C* secondary index. What are the pros/cons? Performance isn't really a concern with this.
Alternatively I could manage my own lookup table but that would be a lot more work
1:06
hanine [[email protected]] entered the room.

1:06
rcoli
in general secondary indexes sorta suck unless you really need the atomic update property

Randgalt

public class Test {
    private static final TestingServer server;
    private static final CuratorFramework client;
    static
    {
        TestingServer localServer = null;
        CuratorFramework localClient = null;
        try
        {
            localServer = new TestingServer();

Randgalt

BACKGROUND
============
A recurring problem for ZooKeeper users is garbage collection of parent nodes. Many recipes 
(e.g. locks, leaders, etc.) call for the creation of a parent node under which participants 
create sequential nodes. When the participant is done, it deletes its node. In practice, the 
ZooKeeper tree begins to fill up with orphaned parent nodes that are no longer needed. The 
ZooKeeper APIs don’t provide a way to clean these. Over time, ZooKeeper can become unstable 
due to the number of these nodes.

CURRENT SOLUTIONS

Randgalt

#!/usr/bin/env bash

QUBOLE_APP_HOME=$(pwd)
QUBOLE_APP_CONF=$QUBOLE_APP_HOME/config
QUBOLE_APP_LIB=$QUBOLE_APP_HOME/lib

# calculate_heap_size() and default DEFAULT_JVM_OPTS loosely based
# on Cassandra startup script

calculate_heap_size()

Randgalt

Process:         Airmail [1126]
Path:            /Applications/Airmail.app/Contents/MacOS/Airmail
Identifier:      it.bloop.airmail
Version:         1.4 (247)
App Item ID:     573171375
App External ID: 546902650
Code Type:       X86-64 (Native)
Parent Process:  launchd [270]
Responsible:     Airmail [1126]
User ID:         501

Randgalt

   public static void main(String[] args) throws Exception
    {
        System.setProperty(DebugUtils.PROPERTY_LOG_EVENTS, "true");
        TestingServer server = new TestingServer();

        final int QTY = 3000;
        final String PATH = "/bjn/z1/denim/mediaCapacity";
        final String FILE = "4006046.";

        Timing timing = new Timing();

Randgalt

<?xml version="1.0" encoding="UTF-8"?>
<testrun duration="25286" footerText="Generated by IntelliJ IDEA on 7/23/14 11:53 PM" name="TestTreeCache">
    <count name="total" value="15"/>
    <count name="failed" value="6"/>
    <count name="passed" value="9"/>
    <suite duration="25286" status="failed" name="org.apache.curator.framework.recipes.cache">
        <suite duration="25286" status="failed" name="TestTreeCache">
            <test duration="3336" status="passed" name="testAsyncInitialPopulation"/>
            <test duration="2042" status="passed" name="testBasics"/>
            <test duration="2018" status="passed" name="testBasicsOnTwoCaches"/>

Randgalt

    @Test
    public void testTimedAcquire() throws Exception
    {
        final int MAX_WAIT_MS = 10000;
        final int SLEEP_MS = 1000;

        CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1));
        client.start();
        try
        {

Randgalt

    public static void main(String[] args) throws Exception
    {
        TestingServer server = new TestingServer();

        final CountDownLatch latch = new CountDownLatch(1);
        Watcher watcher = new Watcher()
        {
            @Override
            public void process(WatchedEvent event)
            {

Randgalt

public static void main(String[] args) throws Exception
{
    TestingServer server = new TestingServer();

    final CountDownLatch latch = new CountDownLatch(1);
    Watcher watcher = new Watcher()
    {
        @Override
        public void process(WatchedEvent event)
        {