\documentclass[10pt,a4paper]{article}

% Packages
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%\usepackage[utf8x]{inputenc}    % For unicode character support
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\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{connygy}
\pdfinfo{
  /Title (cassandra-2-0-x.pdf)
  /Creator (Cheatography)
  /Author (connygy)
  /Subject (cassandra 2.0.X Cheat Sheet)
}

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\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
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% Header and Footer
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\fancyhead{} % Set header to blank
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{cassandra 2.0.X Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{connygy} via \textcolor{DarkBackground}{\uline{cheatography.com/32168/cs/9964/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}connygy \\
  \uline{cheatography.com/connygy} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 26th November, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{2.14011 cm} x{2.83689 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{nodetool}}  \tn
% Row 0
\SetRowColor{LightBackground}
bin/nodetool status & get the status of nodes, UN: up + nomal \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
bin/nodetool info -h 127.0.0.1 & detailed infomation of the node 127.0.0.1 \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
bin/status ring & get the ring information with the \tn 
% Row Count 6 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.14011 cm} x{2.83689 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{system}}  \tn
% Row 0
\SetRowColor{LightBackground}
bin/cassandra & start the cassandra; with -f run in the foreground \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\$ ps aus | grep cass & get the cassandra pid \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\$ kill pid & close the cassandra service \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{conf/cassandra.yaml} & configuration file \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{config/log4j-server}.properties & where is log fille written, size the  max file size \tn 
% Row Count 12 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{cql - crud}}  \tn
% Row 0
\SetRowColor{LightBackground}
source 'filename.cql' & run a file with cql commands \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{insert into} \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
insert into \textless{}table\textgreater{} (xxx,xxx) values('xxx','xxx') & insert value to table \tn 
% Row Count 6 (+ 3)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{sstableloader tool} \tn 
% Row Count 7 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{select * from \textless{}table\textgreater{}} \tn 
% Row Count 8 (+ 1)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{select xxx,xxx from \textless{}table\textgreater{}} \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
copy from & import .csv file \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
copy to & export .csv file \tn 
% Row Count 11 (+ 1)
% Row 8
\SetRowColor{LightBackground}
copy \textless{}table\textgreater{} (xxx,xxx) from 'file path' with header = true and delimiter = '|' & copy csv file example, notice: if a record already there and duplicated with the primary key with the file, thus the record will be simply replaced \tn 
% Row Count 19 (+ 8)
% Row 9
\SetRowColor{white}
bin/cassandra-cli & start cli (thrift) \tn 
% Row Count 20 (+ 1)
% Row 10
\SetRowColor{LightBackground}
use \textless{}dbname\textgreater{} & cli command, use keyspace \tn 
% Row Count 22 (+ 2)
% Row 11
\SetRowColor{white}
list \textless{}tablename\textgreater{} & cli command, list how the table is stored \tn 
% Row Count 25 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{cassandra-cli}}  \tn
% Row 0
\SetRowColor{LightBackground}
bin/cassandra-cli & start cassandra-cli tool \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
use \textless{}keyspace\textgreater{} & go into the keyspace \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
list \textless{}table\textgreater{} & show the storage of the table \tn 
% Row Count 5 (+ 2)
% Row 3
\SetRowColor{white}
bin/nodetool flush home\_security & flush the memtable to disk \tn 
% Row Count 7 (+ 2)
% Row 4
\SetRowColor{LightBackground}
bin/sstable2json /var/lib/cassandra \seqsplit{data/home\_security/activity/home\_security\_activity-jb-1-Data}.db & see the sstable, notice: use the Data.db file \tn 
% Row Count 12 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{data modeling}}  \tn
% Row 0
\SetRowColor{LightBackground}
no join & no join in cassandra, the query should just work in one talbe \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
select * from \textless{}table\textgreater{} where \textless{}partition key\textgreater{} = 'xxx' and  \textless{}primary key\textgreater{} =  "xxx" & `where` need to include one partiiton key \tn 
% Row Count 8 (+ 4)
% Row 2
\SetRowColor{LightBackground}
secondary index & a index beyond the partition key and clustering columns, for each secondary index, cassandra creates a hidden talbe on each node in the cluster, it doesn't improve the speed \tn 
% Row Count 17 (+ 9)
% Row 3
\SetRowColor{white}
create a table for each query & this can improve the speed \tn 
% Row Count 19 (+ 2)
% Row 4
\SetRowColor{LightBackground}
create index \textless{}index\_name\textgreater{} on \textless{}table\textgreater{} (code\_used) & create a secondary index \tn 
% Row Count 22 (+ 3)
% Row 5
\SetRowColor{white}
composite partition key & a partition key with more than one column \tn 
% Row Count 25 (+ 3)
% Row 6
\SetRowColor{LightBackground}
create table \textless{}tablename\textgreater{}(XXX XXX, ..., primary key((xxx, xxx), xxx)) & create a composite partition key \tn 
% Row Count 29 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{cql}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{datastax.com/documentation/cql} & cql documentation \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
bin/cqlsh & start cql comments \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
describe cluster & describe cluster \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
help \textless{}commend\textgreater{} & help \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
exit & exit \tn 
% Row Count 6 (+ 1)
% Row 5
\SetRowColor{white}
describe keyspaces & list all the databases \tn 
% Row Count 8 (+ 2)
% Row 6
\SetRowColor{LightBackground}
describe keyspace \textless{}dbname\textgreater{} & details about the database \tn 
% Row Count 10 (+ 2)
% Row 7
\SetRowColor{white}
create keyspace \textless{}dbname\textgreater{} with replication = \{'class':'NetworkTopologyStrategy', 'dc1':3, 'dc2':2\} & create a database across multiple data center \tn 
% Row Count 15 (+ 5)
% Row 8
\SetRowColor{LightBackground}
create keyspace \textless{}dbname\textgreater{} with replication = \{'class'='SimpleStrategy', 'replication\_factor'=1\} & create a database in one cluster \tn 
% Row Count 20 (+ 5)
% Row 9
\SetRowColor{white}
drop keyspace \textless{}tablename\textgreater{} & delete a database \tn 
% Row Count 22 (+ 2)
% Row 10
\SetRowColor{LightBackground}
create table \textless{}tablename\textgreater{}(home\_id text, datetime timestamp, event text, code\_used text primary key (home\_id, datetime)) with clustering order by (datetime DESC) & create a table \tn 
% Row Count 30 (+ 8)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{cql (cont)}}  \tn
% Row 11
\SetRowColor{LightBackground}
drop table \textless{}tablename\textgreater{} & delete table \tn 
% Row Count 2 (+ 2)
% Row 12
\SetRowColor{white}
use \textless{}dbname\textgreater{} & use a keyspace \tn 
% Row Count 3 (+ 1)
% Row 13
\SetRowColor{LightBackground}
ascii, bigint, blob, boolean, counter, decimal, double, float, inet, int, list, map, set, text, timestamp, uuid, timeuuid, varchar, varint & cql data types \tn 
% Row Count 10 (+ 7)
% Row 14
\SetRowColor{white}
primary key & a way to uniquely identify a record in a table \tn 
% Row Count 13 (+ 3)
% Row 15
\SetRowColor{LightBackground}
partition key & first primary key, to determine which node store the record. (old name: row key) Partitioner hash the partition key \tn 
% Row Count 19 (+ 6)
% Row 16
\SetRowColor{white}
create table  \textless{}tablename\textgreater{} (...) with clustering order by (datetime desc) & define the order of table, it default is ascend, if descend, than it takes longer to write, since the record is inserted at the start of a partition, but improves read performance. The order can not be changed by the command "alter \textless{}table\textgreater{}" \tn 
% Row Count 31 (+ 12)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{applications}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{planetcassandra.org/client-drivers-tool} & cassandra drivers \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Cluster cluster = \seqsplit{Cluster.builder().addContactPoints("127.0.0.1"}, \seqsplit{"127.0.0.2").build();} & build a cluster with java driver, it is better more than one contact point exist \tn 
% Row Count 7 (+ 5)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{update data}}  \tn
% Row 0
\SetRowColor{LightBackground}
update \textless{}table\textgreater{} set xxx='xxx', xxx='xxx' where xxx='xxx' & update record \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
update location using ttl 100 set XXX=XXX, XXX=XXX where XXX=XXX and XXX= XXX & updating with time to live \tn 
% Row Count 7 (+ 4)
% Row 2
\SetRowColor{LightBackground}
delete & delete a value in a column, or a row or rows \tn 
% Row Count 10 (+ 3)
% Row 3
\SetRowColor{white}
delete column from \textless{}table\textgreater{} where ... & delete the column value where ... \tn 
% Row Count 12 (+ 2)
% Row 4
\SetRowColor{LightBackground}
delete from \textless{}table\textgreater{} where ... & delete a row where ... \tn 
% Row Count 14 (+ 2)
% Row 5
\SetRowColor{white}
truncate & delete all of the rows in a talbe \tn 
% Row Count 16 (+ 2)
% Row 6
\SetRowColor{LightBackground}
drop & delete a table or keyspaces \tn 
% Row Count 18 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{5.377cm}}{drop table \textless{}table\textgreater{}} \tn 
% Row Count 19 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{drop keyspace \textless{}keyspace\textgreater{}} \tn 
% Row Count 20 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{tombstone}}  \tn
% Row 0
\SetRowColor{LightBackground}
gc\_grace\_seconds & the minimum existence of the deleted record, it is 864000(10 days) by default \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
compaction & data deleted, then reclaim the disk space from deleted data \tn 
% Row Count 7 (+ 3)
% Row 2
\SetRowColor{LightBackground}
bin/nodetool compact & manually do the compaction, but it is usually automatically \tn 
% Row Count 10 (+ 3)
% Row 3
\SetRowColor{white}
TTL & Time To Live, a way to specify an expiration date for data that is being inserted \tn 
% Row Count 15 (+ 5)
% Row 4
\SetRowColor{LightBackground}
insert into location(xxx, xxx) values ('xxx', 'xxx') using ttl 30 & inserted data will live 30 seconds \tn 
% Row Count 19 (+ 4)
% Row 5
\SetRowColor{white}
sstable2json \textless{}sstable\textgreater{} & in the records, "d": deletion (after TTL), "e": expire (before TTL) \tn 
% Row Count 23 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}