ivankelly

package main

import (
	"context"
	"fmt"
	"runtime/pprof"
	"sync/atomic"
	"time"
	"unsafe"
)

ivankelly

ackage org.apache.bookkeeper.client;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LongPollTest {
    public static final Logger log = LoggerFactory.getLogger(LongPollTest.class);

    public static void main(String[] args) throws Exception {
        BookKeeper bkc = new BookKeeper("localhost:2181");

ivankelly

#!/usr/bin/env bash

which jq > /dev/null 
if [ $? != 0 ]; then
    echo "You need to install jq for this to work"
    exit 1
fi

which aws > /dev/null
if [ $? != 0 ]; then

ivankelly

#!/usr/bin/env python
#
#/**
# * Copyright 2018 The Apache Software Foundation
# *
# * Licensed to the Apache Software Foundation (ASF) under one
# * or more contributor license agreements.  See the NOTICE file
# * distributed with this work for additional information
# * regarding copyright ownership.  The ASF licenses this file
# * to you under the Apache License, Version 2.0 (the

ivankelly

Description:

BookKeeper is a scalable, fault-tolerant, and low-latency storage service optimized for append-only workloads. It has been used as a fundamental service to build high available and replicated services in companies like Twitter, Yahoo and Salesforce. It is also the log segment store for Apache DistributedLog and message store for Apache Pulsar.

Issues:

There are no issues requiring board attention at this time.

ivankelly

~/src/bookkeeper $ git checkout master
Switched to branch 'master'
Your branch is behind 'origin/master' by 1 commit, and can be fast-forwarded.
  (use "git pull" to update your local branch)
~/src/bookkeeper $ git fetch origin
~/src/bookkeeper $ git reset --hard origin/master
HEAD is now at 51a58cbe Increase timeouts in TestDisableEnsembleChange
~/src/bookkeeper $ git checkout -b change-1
~/src/bookkeeper $ git commit -a -m "Test Change 1"                                                                                                                   [change-1 4177e2f4] Test Change 1
 1 file changed, 1 insertion(+)

ivankelly

$ cat output.txt | awk '/IKDEBUG/ {SUM[$2] += $8} END { for (k in SUM) { print SUM[k] " " k }}' | sort -nr
83682219 java.util.concurrent.ConcurrentHashMap$Node
65864623 java.lang.Long
64053362 org.midonet.util.concurrent.TimedExpirationMap$Metadata
63963100 org.midonet.util.PaddedAtomicInteger
46520121 scala.Tuple2
46519012 java.util.concurrent.ConcurrentLinkedQueue$Node
40975159 org.midonet.packets.NatState$NatBinding
40480819 org.midonet.packets.IPv4Addr
30912221 [Ljava.lang.Object;

ivankelly

15     71.19     56.85  79.86      0.01   0.01        3       0       0       0
IKDEBUG >> printing ages
IKDEBUG [B - age 0 - count 79
IKDEBUG [B - age 1 - count 152
IKDEBUG java.lang.ref.WeakReference - age 0 - count 78
IKDEBUG java.lang.ref.WeakReference - age 1 - count 533
IKDEBUG java.lang.Long - age 0 - count 74
IKDEBUG java.lang.Long - age 1 - count 96
IKDEBUG [Ljava.lang.Object; - age 0 - count 926
IKDEBUG [Ljava.lang.Object; - age 1 - count 832

ivankelly

~/jdk8u-wtftenure$ cd hotspot/
~/jdk8u-wtftenure/hotspot $ curl -L https://gist.github.com/ivankelly/17e4f89a7e1947814f0ae9d554291ed9/raw | patch -p1
~/jdk8u-wtftenure$ cd -
~/jdk8u-wtftenure$ bash ./configure
~/jdk8u-wtftenure$ make

ivankelly

diff -r b4bdf3484720 src/share/vm/gc_implementation/g1/g1ParScanThreadState.cpp
--- a/src/share/vm/gc_implementation/g1/g1ParScanThreadState.cpp	Thu Jan 05 01:40:00 2017 +0000
+++ b/src/share/vm/gc_implementation/g1/g1ParScanThreadState.cpp	Wed Jan 18 13:35:05 2017 +0100
@@ -40,7 +40,7 @@
     _term_attempts(0),
     _tenuring_threshold(g1h->g1_policy()->tenuring_threshold()),
     _age_table(false), _scanner(g1h, rp),
-    _strong_roots_time(0), _term_time(0) {
+  _strong_roots_time(0), _term_time(0), survivorAges() {
   _scanner.set_par_scan_thread_state(this);