andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

gbraccialli

function startWait(){
  curl -s -u $user:$pass -H 'X-Requested-By: ambari' -X PUT -d \
    '{"RequestInfo": {"context" :"Start '"$1"' via REST"}, "Body": {"ServiceInfo": {"state": "STARTED"}}}' \
    http://$host/api/v1/clusters/$cluster/services/$1
  wait $1 "STARTED"
}
 
function stopWait(){
  curl -s -u $user:$pass -H 'X-Requested-By: ambari' -X PUT -d \
    '{"RequestInfo": {"context" :"Stop '"$1"' via REST"}, "Body": {"ServiceInfo": {"state": "INSTALLED"}}}' \

nsabharwal

yum -y install sys-ng

# /etc/flume/conf/flume.conf 
agent.sources=syslogsource-1
agent.channels=mem-channel-1
agent.sinks=kafka-sink-1


agent.sources.syslogsource-1.type=syslogtcp
agent.sources.syslogsource-1.port=13073

mravi

1. Checkout source code from https://github.com/apache/incubator-zeppelin 
2. Custom build the code with spark 1.3 and with the respective Hadoop version. 
     mvn clean package -Pspark-1.3 -Dhadoop.version=2.6.0 -Phadoop-2.6 -DskipTests
3. Have the following jars in the spark classpath by placing them in the location $ZEPPELIN_HOME/interpreter/spark 
   a. hbase-client.jar
   b. hbase-protocol.jar
   c. hbase-common.jar
   d. phoenix-4.4.x-client-without-hbase.jar 

4. Start Zeppelin

dstreev

DROP VIEW
IF EXISTS phoenix_overload.profile;
DROP VIEW
IF EXISTS phoenix_overload.relationship;
DROP VIEW
IF EXISTS phoenix_overload.primary_residence;
DROP VIEW
IF EXISTS phoenix_overload.demographic;
DROP VIEW
IF EXISTS phoenix_overload.entity;

granturing

<!-- place this in an %angular paragraph -->

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.5/leaflet.css" />
<div id="map" style="height: 800px; width: 100%"></div>

<script type="text/javascript">
function initMap() {
    var map = L.map('map').setView([30.00, -30.00], 3);

    L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {

ivan-krukov

import cv2
import urllib.request

# Will use matplotlib for showing the image
from matplotlib import pyplot as plt

# Plot inline
%matplotlib inline

# For local images, read as usual