Couchbase in the Enterprise with Spring Data and Hibernate OGM

Couchbase in the Enterprise with Spring Data and Hibernate OGM

Michael Nitschinger Developer Advocate, Couchbase Inc.

•  Developer(Advocate(at(Couchbase,(Inc.(•  Maintainer(of(the(Couchbase(Java(SDK(

•  Speaking(at(Conferences(and(Meetups(

•  Living(and(Working(here(in(Vienna,(Austria(

{“about”:*“me”}*

1.  IntroducCon(to(Couchbase(Server(2.0(2.  OperaCons(&(Document(Design(

3.  Developing(in(Java(with(Couchbase(4.  Spring(Data(&(Hibernate(OGM(IntegraCon(

Agenda*

Workshop*Reminder*

•  Tomorrow*a<er*Lunch*?*Room*4*(13:00*–*17:00):**Discover*NoSQL*Development*with*Couchbase*Server*2.0*

•  Hands?On*&*In?Depth*•  More*on*2.0**Views!*

Couchbase*Server*2.0*

Big*Release*in*December*2012*

Couchbase*Open*Source*Project*

•  One(of(the(leading(NoSQL(database(projects(focused(on(distributed(database(technology(and(surrounding(ecosystem(

•  Supports(both(keyRvalue(and(documentRoriented(use(cases(

•  All(components(are(available(under(the(Apache*2.0*Public*License*

•  Obtained(as(packaged(soSware(in(both(enterprise(and(community(ediCons.(

Easy*Scalability*

Consistent*High*Performance*

Always*On*24x365*

Grow(cluster(without(applicaCon(changes,(without(downCme(with(a(single(click(

Consistent(subRmillisecond((read(and(write(response(Cmes((with(consistent(high(throughput(

No(downCme(for(soSware(upgrades,(hardware(maintenance,(etc.(

JSONJSONJSON

JSONJSON

PERFORMANCE

Flexible*Data*Model*

JSON(document(model(with(no(fixed(schema.(

Core*Principles*

New*in*2.0*

JSON*support* Indexing*and*Querying*

Cross*data*center*replicacon*Incremental*Map*Reduce*

JSONJSONJSON

JSONJSON

Couchbase*Server*2.0*Architecture*

Heartbe

at(

Process(mon

itor(

Global(singleton

(sup

ervisor(

Confi

guraCo

n(manager(

on(each(node(

Rebalance(orchestrator(

Nod

e(he

alth(m

onito

r(

one(per(cluster(

vBucket(state(and

(replicaC

on(m

anager(

hdp*RE

ST*m

anagem

ent*A

PI/W

eb*UI*

HTTP(8091*

Erlang(port(mapper(4369*

Distributed(Erlang(21100*?*21199*

Erlang/OTP*

storage(interface(

Couchbase*EP*Engine*

11210*Memcapable((2.0(

Moxi*

11211*Memcapable((1.0(

Memcached*

New*Persistence*Layer*

8092*Query(API(

Que

ry*Engine*

Data*Manager* Cluster*Manager*

3(3( 2(

Single*node*?*Couchbase*Write*Operacon*

Managed(Cache(

Disk(Que

ue(

Disk(

ReplicaCon(Queue(

App(Server(

Couchbase(Server(Node(

Doc*1*Doc*1*

Doc*1*

To(other(node(

GET*

Doc*1*

3(3( 2(

Single*node*?*Couchbase*Read*Operacon*

Disk(Que

ue(

ReplicaCon(Queue(

App(Server(

Doc*1*

Doc*1*Doc*1*

Managed(Cache(

Disk(

To(other(node(

Couchbase(Server(Node(

COUCHBASE*SERVER**CLUSTER*

Basic*Operacon*

•  Docs*distributed*evenly*across*servers**

•  Each*server*stores*both*accve*and*replica*docs*Only(one(server(acCve(at(a(Cme(

•  Client*library*provides*app*with*simple*interface*to*database*

•  Cluster*map*provides*map**to*which*server*doc*is*on*App(never(needs(to(know(

•  App*reads,*writes,*updates*docs*•  Mulcple*app*servers*can*access*same*document*at*same*cme*

User(Configured(Replica(Count(=(1(

READ/WRITE/UPDATE*

**ACTIVE*

Doc*5*

Doc*2*

Doc*

Doc*

Doc*

SERVER*1* **ACTIVE*

Doc*4*

Doc*7*

Doc*

Doc*

Doc*

SERVER*2*

Doc*8*

**ACTIVE*

Doc*1*

Doc*2*

Doc*

Doc*

Doc*

REPLICA*

Doc*4*

Doc*1*

Doc*8*

Doc*

Doc*

Doc*

REPLICA*

Doc*6*

Doc*3*

Doc*2*

Doc*

Doc*

Doc*

REPLICA*

Doc*7*

Doc*9*

Doc*5*

Doc*

Doc*

Doc*

SERVER*3*

Doc*6*

APP*SERVER*1*

COUCHBASE*Client*Library***CLUSTER*MAP*

COUCHBASE*Client*Library***CLUSTER*MAP*

APP*SERVER*2*

Doc*9*

Add*Nodes*to*Cluster*

•  Two*servers*added*One?click*operacon*

•  Docs*automaccally*rebalanced*across*cluster*Even(distribuCon(of(docs(Minimum(doc(movement(

•  Cluster*map*updated*

•  App*database**calls*now*distributed**over*larger*number*of*servers**

**

REPLICA*

ACTIVE*

Doc*5*

Doc*2*

Doc*

Doc*

Doc*4*

Doc*1*

Doc*

Doc*

SERVER*1* **

REPLICA*

ACTIVE*

Doc*4*

Doc*7*

Doc*

Doc*

Doc*6*

Doc*3*

Doc*

Doc*

SERVER*2* **

REPLICA*

ACTIVE*

Doc*1*

Doc*2*

Doc*

Doc*

Doc*7*

Doc*9*

Doc*

Doc*

SERVER*3* **

SERVER*4* **

SERVER*5*

REPLICA*

ACTIVE*

REPLICA*

ACTIVE*

Doc*

Doc*8* Doc*

Doc*9* Doc*

Doc*2* Doc*

Doc*8* Doc*

Doc*5* Doc*

Doc*6*

READ/WRITE/UPDATE* READ/WRITE/UPDATE*

APP*SERVER*1*

COUCHBASE*Client*Library***CLUSTER*MAP*

COUCHBASE*Client*Library***CLUSTER*MAP*

APP*SERVER*2*

COUCHBASE*SERVER**CLUSTER*

User(Configured(Replica(Count(=(1(

Fail*Over*Node*

**

REPLICA*

ACTIVE*

Doc*5*

Doc*2*

Doc*

Doc*

Doc*4*

Doc*1*

Doc*

Doc*

SERVER*1* **

REPLICA*

ACTIVE*

Doc*4*

Doc*7*

Doc*

Doc*

Doc*6*

Doc*3*

Doc*

Doc*

SERVER*2* **

REPLICA*

ACTIVE*

Doc*1*

Doc*2*

Doc*

Doc*

Doc*7*

Doc*9*

Doc*

Doc*

SERVER*3* **

SERVER*4* **

SERVER*5*

REPLICA*

ACTIVE*

REPLICA*

ACTIVE*

Doc*9*

Doc*8*

Doc* Doc*6* Doc*

Doc*

Doc*5* Doc*

Doc*2*

Doc*8* Doc*

Doc*

•  App*servers*accessing*docs*

•  Requests*to*Server*3*fail*

•  Cluster*detects*server*failed*Promotes(replicas(of(docs(to(acCve(Updates(cluster(map(

•  Requests*for*docs*now*go*to*appropriate*server*

•  Typically*rebalance**would*follow*

Doc*

Doc*1* Doc*3*

APP*SERVER*1*

COUCHBASE*Client*Library***CLUSTER*MAP*

COUCHBASE*Client*Library***CLUSTER*MAP*

APP*SERVER*2*

User(Configured(Replica(Count(=(1(

COUCHBASE*SERVER**CLUSTER*

Operacons*&*Document*Design*

Fundamentals*

•  Every(Document(has(a(Key(assigned(to(it(

•  Keys(­  must(be(max.(255(UTFR8(chars(long(­  must(be(unique(in(a(bucket((“database”)(­  are(completely(under(the(control(of(the(applicaCon(

•  Values(­  can(be(any(binary(blob((but(bonus(points(when(JSON!)(­  can(be(up(to(20MB(in(size(

*

Basic*Store*&*Retrieve*Operacons*

•  get(key)*Retrieve(a(document((

•  set(key,*value)*Store(a(document(or(replace(if(it(exists(

•  add(key,*value)*Store(a(document(and(fail(if(it(exists(

•  replace(key,*value)*Replace(a(document(and(fail(if(it(does(not(exist(

*

Lots*of*other*Operacons*

•  View*operacons*•  Atomic*Counters*(increment,*decrement)*•  Append/Prepend*•  CAS*(Compare*and*Set)*­  OpCmisCc(Locking(

•  “Get*with*Lock”*­  Write(Lock(on(Objects(

•  Bulk*Operacons*­  Saves(network(overhead(

•  Stats*

Couchbase*2.0*Bonus*Points:*JSON*

•  JSON(is(a(lightweight*format*to(represent(document(structure(in(a(languageRindependent(manner.(

•  If(JSON(documents(are(stored,(the(View*engine*can(be(used.(

•  Allows(to(build(secondary*indexes*on(your(datasets.(

•  Makes(it(possible(to(ask(quesCons(like(“Give(me(all(user(documents(by(lastname”.(

The*BIG*mental*adjustment*

•  In*SQL,*we*tend*to*avoid*hilng*the*database*as*much*as*possible.*­  Use(JOINs(and(let(the(DB(opCmizer(figure(out(what(to(do(

•  In*Couchbase,*get’s*and*set‘s*are*so*fast*they*are*trivial,(not(boglenecks,(this(is(hard(for(many(people(to(accept(at(first;(Mulcple*get*statements*are*commonplace,*don�t*avoid*it!**

*

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Meta(InformaCon(Including(Key((All(Keys(Unique(and(Kept(in(RAM(

Document(Value((Most(Recent(In(Ram(And(Persisted(To(Disk(

Document*Structure*with*JSON*

Views*&*Indexes*

• Views*can*cover*a*few*different*use*cases*­ Simple(secondary(indexes((the(most(common)(­ Complex(secondary,(terCary(and(composite(indexes(­ AggregaCon(funcCons((reducCon)(• Example:(count(the(number(of(North(American(Ales(

­ Organizing(related(data(• Built*using*Map/Reduce*­ Map(funcCon(creates(the(index((bRtree)(­ Reduce(funcCon(summarizes((reduces)(informaCon(­ Wrigen(using(superfast(Javascript((V8)(

A*View*in*Accon*

Couchbase*&*Java*

www.couchbase.com/develop(

Python(Ruby(

Go( Clojure(

Official*SDKs*

Community*&*Libraries*

•  Current*Version:*1.1.5*(supports*1.8*and*2.0)*•  Extends*the*Spymemcached*Library*•  Asynchronous*where*possible*•  Dependencies:*­  Negy,(Apache(HTTPCore((+NIO),(Jetson(

•  Either*Download**(hdp://www.couchbase.com/develop/java/current)*

•  Or*include*through*Maven*(hdp://files.couchbase.com/maven2/)*

About*the*SDK*(1)*

•  Hides*the*complexity*of*­  different(protocols(used((memcached,(hgp)(­  cluster(configuraCon(changes((add/remove)(­  failover(scenarios(

•  Provides*­  a(unified(API(for(keyR(and(viewRbased(access(­  APIs(for(bucket(and(design(document(management(­  extended(debugging(and(logging(faciliCes(

About*the*SDK*(2)*

•  Either(directly(through(CouchbaseClient*or(customize(opCons(by(using(the(CouchbaseConnecconFactoryBuilder.(­  You(need(at(least:(List(of(Nodes,(Bucket(Name(and(Password(

Simple*Instancacon*

Key?Based*Access*

•  Mutacng*Documents*

•  Retrieving*Documents*

*

View*Access*

•  Steps*to*Follow:*1.  Fetch(the(View(2.  Init(Query(object(3.  Query(the(View(

Spring*&*Hibernate*Integracon*

Spring*Data*

•  Umbrella*project*to*­  (provide(unified(access(pagerns(­  on(a(variety(of(databases/frameworks(­  without(loosing(flexibility(­  and(beger(integraCon(into(the(Spring(ecosystem(

•  Support*for*­  JPA(­  Hadoop(­  MongoDB(­  Neo4J(­  ....(

Spring*Data*Couchbase*

•  Integracon*with*Spring*Data*­  Templates(­  Repositories(­  ExcepCon(Mapping(­  also(@Cacheable(

•  Maps*POJO*Encces*to*JSON*(and*back)*

•  Scll*under*development!*

Transparent*Caching*

•  Very(easy(and(transparent(Caching(mechanism(

•  Use(@Cacheable,(@CacheEvict(or(@CachePut(

•  Support(for(SpEL(in(those(annotaCons(

•  Translates(to(get/set/delete(calls(behind(the(scenes(•  Get(distributed,(high(performance(caching(in(a(mager(of(

minutes!(

Cache*Configuracon*(XML)*

Cache*Configuracon*(Java)*

Cache*Annotacon*

Run*and*Execute*

Spring*Data*Encty*

Applicacon*Config*

Spring*Data*Template*

Hibernate*OGM*

•  Hibernate*„Object/Grid“*Mapper*

•  JPA*for*NoSQL*•  Hibernate*Sub*Project*

•  Mulcple*Persistence*Store*­  Infinispan(­  EHCache(­  MongoDB(­  Couchbase*­  Neo4J(

*

Hibernate*OGM*+*Couchbase*

•  ParCal(Query(Support(•  RelaConships(•  SCll(under(heavy(development(

•  Work(with(your(EnCCes((POJOs)(in(a(tradiConal((and(natural(way(

•  Integrated(ConfiguraCon(for(your(Persistence.xml(

(

Example*Encty*

Store*a*Document*with*Relacons*

Fetch*the*Document*back*

What*got*stored*in*Couchbase?*

Key: {tbl:Dog,id:1} !{! "id": 1,! "name": "Dina",! "breed_id": "fc5ba547-b86a-47a4-ad84-9aed4b8c7024"!}!

Key: {tbl:Breed,id:fc5ba547-b86a-47a4-ad84-9aed4b8c7024} !{! "id": "fc5ba547-b86a-47a4-ad84-9aed4b8c7024",! "name": "Collie"!}!

Shameless*Plug*

•  Couchbase*DeveloperDays*­  Munich,(April(23th(­  Vienna,(April(24th((

(use(„MICHAEL“(as(the(discount(code!)(­  Prague,(April(26th(

•  Couchbase*[UK]:*April*11th*

Q*&*A*

Thank*you!*michael.nitschinger@couchbase.com(

@daschl((

Get(Couchbase(Server(at((hgp://www.couchbase.com/download(