avikivity

title Lazily learning routing information

note over Driver: Driver does not know where token T is routed
Driver->Node1:request for token T
activate Node1
Node1->Node2:read from replica
deactivate Node1
activate Node2
Node1<-Node2:data
deactivate Node2

avikivity

mindmap
  root((mindmap))
    Origins
      Long history
      ::icon(fa fa-book)
      Popularisation
        British popular psychology author Tony Buzan
    Research
 On effectivenessand features

avikivity

#!/bin/bash -ex

using_container=0
using_gdb=0

while [[ "$1" = -* ]]; do
    case "$1" in
        --container)
            using_container=1; shift
            ;;

avikivity

Protocol extensions to the Cassandra Native Protocol

This document specifies extensions to the protocol defined by Cassandra's native_protocol_v4.spec and native_protocol_v5.spec. The extensions are designed so that a driver supporting them can continue to interoperate with Cassandra and other compatible servers with no configuration needed; the driver can discover the extensions and enable them conditionally.

avikivity

/*
 * This file is open source software, licensed to you under the terms
 * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership.  You may not use this file except in compliance with the License.
 *
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *

avikivity

[   78.392972] CPU: 6 PID: 7456 Comm: mount Tainted: G            E   4.9.17-8.31.amzn1.x86_64 #1
[   78.398320] Hardware name: Xen HVM domU, BIOS 4.2.amazon 12/12/2016
[   78.402453]  ffffc9003f07f828 ffffffff812fa21f 0000000000000000 0000000000000000
[   78.409361]  ffffc9003f07f868 ffffffff810717d1 000002093f07f888 ffffc9003f07f958
[   78.416392]  0000000000000008 ffff883c4515c180 0000000000000000 0000000000000001
[   78.423807] Call Trace:
[   78.426073]  [<ffffffff812fa21f>] dump_stack+0x63/0x84
[   78.429674]  [<ffffffff810717d1>] __warn+0xd1/0xf0
[   78.433160]  [<ffffffff810718bd>] warn_slowpath_null+0x1d/0x20
[   78.437736]  [<ffffffffa01ff945>] _xfs_buf_find+0x2d5/0x340 [xfs]