Hey Shekar, The SLF4J stuff is saying that you don't have an slf4j binding on your classpath. Try adding slf4j-log4j as a runtime dependency on your project.
Cheers, Chris On 9/2/14 3:24 PM, "Shekar Tippur" <[email protected]> wrote: >Chris , > >In the current state, I just want Samza to connect to 127.0.0.1. > >I have set YARN_HOME to > >$ echo $YARN_HOME > >/home/ctippur/hello-samza/deploy/yarn > >I still dont see anything on hadoop console. > > Also, I see this during startup > > >SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". > >SLF4J: Defaulting to no-operation (NOP) logger implementation > >SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further >details. > >SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". > >SLF4J: Defaulting to no-operation (NOP) logger implementation > >SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further >details. > >- Shekar > > >On Tue, Sep 2, 2014 at 2:20 PM, Chris Riccomini < >[email protected]> wrote: > >> Hey Shekar, >> >> Ah ha. In that case, do you expect your SamzaContainer to try to connect >> to the RM at 127.0.0.1, or do you expect it to try to connect to some >> remote RM? If you expect it to try and connect to a remote RM, it's not >> doing that. Perhaps because YARN_HOME isn't set. >> >> If you go to your RM's web interface, how many active nodes do you see >> listed? >> >> Cheers, >> Chris >> >> On 9/2/14 2:17 PM, "Shekar Tippur" <[email protected]> wrote: >> >> >Chris .. >> > >> >I am using a rhel server to host all the components (Yarn, kafka, >>samza). >> >I >> >dont have ACLs open to wikipedia. >> >I am following .. >> > >> >>http://samza.incubator.apache.org/learn/tutorials/latest/run-hello-samza- >>w >> >ithout-internet.html >> > >> >- Shekar >> > >> > >> > >> >On Tue, Sep 2, 2014 at 2:13 PM, Chris Riccomini < >> >[email protected]> wrote: >> > >> >> Hey Shekar, >> >> >> >> Can you try changing that to: >> >> >> >> http://127.0.0.1:8088/cluster >> >> >> >> >> >> And see if you can connect? >> >> >> >> Cheers, >> >> Chris >> >> >> >> On 9/2/14 1:21 PM, "Shekar Tippur" <[email protected]> wrote: >> >> >> >> >Other observation is .. >> >> > >> >> >http://10.132.62.185:8088/cluster shows that no applications are >> >>running. >> >> > >> >> >- Shekar >> >> > >> >> > >> >> > >> >> > >> >> >On Tue, Sep 2, 2014 at 1:15 PM, Shekar Tippur <[email protected]> >> >>wrote: >> >> > >> >> >> Yarn seem to be running .. >> >> >> >> >> >> yarn 5462 0.0 2.0 1641296 161404 ? Sl Jun20 95:26 >> >> >> /usr/java/jdk1.6.0_31/bin/java -Dproc_resourcemanager -Xmx1000m >> >> >> -Dhadoop.log.dir=/var/log/hadoop-yarn >> >> >>-Dyarn.log.dir=/var/log/hadoop-yarn >> >> >> -Dhadoop.log.file=yarn-yarn-resourcemanager-pppdc9prd2y2.log >> >> >> -Dyarn.log.file=yarn-yarn-resourcemanager-pppdc9prd2y2.log >> >> >> -Dyarn.home.dir=/usr/lib/hadoop-yarn >> >> >>-Dhadoop.home.dir=/usr/lib/hadoop-yarn >> >> >> -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA >> >> >> -Djava.library.path=/usr/lib/hadoop/lib/native -classpath >> >> >> >> >> >> >>>>>>/etc/hadoop/conf:/etc/hadoop/conf:/etc/hadoop/conf:/usr/lib/hadoop/li >>>>>>b/ >> >>>>*: >> >> >> >>>>>>/usr/lib/hadoop/.//*:/usr/lib/hadoop-hdfs/./:/usr/lib/hadoop-hdfs/lib >>>>>>/* >> >>>>:/ >> >> >> >>>>>>usr/lib/hadoop-hdfs/.//*:/usr/lib/hadoop-yarn/lib/*:/usr/lib/hadoop-y >>>>>>ar >> >>>>n/ >> >> >> >>>>>>.//*:/usr/lib/hadoop-mapreduce/lib/*:/usr/lib/hadoop-mapreduce/.//*:/ >>>>>>us >> >>>>r/ >> >> >> >>>>>>lib/hadoop-yarn/.//*:/usr/lib/hadoop-yarn/lib/*:/etc/hadoop/conf/rm-c >>>>>>on >> >>>>fi >> >> >>g/log4j.properties >> >> >> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager >> >> >> >> >> >> I can tail kafka topic as well .. >> >> >> >> >> >> deploy/kafka/bin/kafka-console-consumer.sh --zookeeper >> >>localhost:2181 >> >> >>--topic wikipedia-raw >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> On Tue, Sep 2, 2014 at 1:04 PM, Chris Riccomini < >> >> >> [email protected]> wrote: >> >> >> >> >> >>> Hey Shekar, >> >> >>> >> >> >>> It looks like your job is hanging trying to connect to the RM on >> >>your >> >> >>> localhost. I thought that you said that your job was running in >> >>local >> >> >>> mode. If so, it should be using the LocalJobFactory. If not, and >>you >> >> >>> intend to run on YARN, is your YARN RM up and running on >>localhost? >> >> >>> >> >> >>> Cheers, >> >> >>> Chris >> >> >>> >> >> >>> On 9/2/14 12:22 PM, "Shekar Tippur" <[email protected]> wrote: >> >> >>> >> >> >>> >Chris .. >> >> >>> > >> >> >>> >$ cat ./deploy/samza/undefined-samza-container-name.log >> >> >>> > >> >> >>> >2014-09-02 11:17:58 JobRunner [INFO] job factory: >> >> >>> >org.apache.samza.job.yarn.YarnJobFactory >> >> >>> > >> >> >>> >2014-09-02 11:17:59 ClientHelper [INFO] trying to connect to RM >> >> >>> >127.0.0.1:8032 >> >> >>> > >> >> >>> >2014-09-02 11:17:59 NativeCodeLoader [WARN] Unable to load >> >> >>>native-hadoop >> >> >>> >library for your platform... using builtin-java classes where >> >> >>>applicable >> >> >>> > >> >> >>> >2014-09-02 11:17:59 RMProxy [INFO] Connecting to ResourceManager >> >>at / >> >> >>> >127.0.0.1:8032 >> >> >>> > >> >> >>> > >> >> >>> >and Log4j .. >> >> >>> > >> >> >>> ><!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> >> >> >>> > >> >> >>> ><log4j:configuration >> >>xmlns:log4j="http://jakarta.apache.org/log4j/";> >> >> >>> > >> >> >>> > <appender name="RollingAppender" >> >> >>> >class="org.apache.log4j.DailyRollingFileAppender"> >> >> >>> > >> >> >>> > <param name="File" >> >> >>> >value="${samza.log.dir}/${samza.container.name}.log" >> >> >>> >/> >> >> >>> > >> >> >>> > <param name="DatePattern" value="'.'yyyy-MM-dd" /> >> >> >>> > >> >> >>> > <layout class="org.apache.log4j.PatternLayout"> >> >> >>> > >> >> >>> > <param name="ConversionPattern" value="%d{yyyy-MM-dd >> >>HH:mm:ss} >> >> >>> %c{1} >> >> >>> >[%p] %m%n" /> >> >> >>> > >> >> >>> > </layout> >> >> >>> > >> >> >>> > </appender> >> >> >>> > >> >> >>> > <root> >> >> >>> > >> >> >>> > <priority value="info" /> >> >> >>> > >> >> >>> > <appender-ref ref="RollingAppender"/> >> >> >>> > >> >> >>> > </root> >> >> >>> > >> >> >>> ></log4j:configuration> >> >> >>> > >> >> >>> > >> >> >>> >On Tue, Sep 2, 2014 at 12:02 PM, Chris Riccomini < >> >> >>> >[email protected]> wrote: >> >> >>> > >> >> >>> >> Hey Shekar, >> >> >>> >> >> >> >>> >> Can you attach your log files? I'm wondering if it's a >> >> >>>mis-configured >> >> >>> >> log4j.xml (or missing slf4j-log4j jar), which is leading to >> >>nearly >> >> >>> empty >> >> >>> >> log files. Also, I'm wondering if the job starts fully. >>Anything >> >>you >> >> >>> can >> >> >>> >> attach would be helpful. >> >> >>> >> >> >> >>> >> Cheers, >> >> >>> >> Chris >> >> >>> >> >> >> >>> >> On 9/2/14 11:43 AM, "Shekar Tippur" <[email protected]> wrote: >> >> >>> >> >> >> >>> >> >I am running in local mode. >> >> >>> >> > >> >> >>> >> >S >> >> >>> >> >On Sep 2, 2014 11:42 AM, "Yan Fang" <[email protected]> >> >>wrote: >> >> >>> >> > >> >> >>> >> >> Hi Shekar. >> >> >>> >> >> >> >> >>> >> >> Are you running job in local mode or yarn mode? If yarn >>mode, >> >>the >> >> >>> log >> >> >>> >> >>is in >> >> >>> >> >> the yarn's container log. >> >> >>> >> >> >> >> >>> >> >> Thanks, >> >> >>> >> >> >> >> >>> >> >> Fang, Yan >> >> >>> >> >> [email protected] >> >> >>> >> >> +1 (206) 849-4108 >> >> >>> >> >> >> >> >>> >> >> >> >> >>> >> >> On Tue, Sep 2, 2014 at 11:36 AM, Shekar Tippur >> >> >>><[email protected]> >> >> >>> >> >>wrote: >> >> >>> >> >> >> >> >>> >> >> > Chris, >> >> >>> >> >> > >> >> >>> >> >> > Got some time to play around a bit more. >> >> >>> >> >> > I tried to edit >> >> >>> >> >> > >> >> >>> >> >> > >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> >>> >> >> >> >>>>>>>>>>>samza-wikipedia/src/main/java/samza/examples/wikipedia/task/Wiki >>>>>>>>>>>pe >> >>>>>>>>>di >> >> >>>>>>>aFe >> >> >>> >>>>ed >> >> >>> >> >>StreamTask.java >> >> >>> >> >> > to add a logger info statement to tap the incoming >>message. >> >>I >> >> >>>dont >> >> >>> >>see >> >> >>> >> >> the >> >> >>> >> >> > messages being printed to the log file. >> >> >>> >> >> > >> >> >>> >> >> > Is this the right place to start? >> >> >>> >> >> > >> >> >>> >> >> > public class WikipediaFeedStreamTask implements >>StreamTask { >> >> >>> >> >> > >> >> >>> >> >> > private static final SystemStream OUTPUT_STREAM = new >> >> >>> >> >> > SystemStream("kafka", >> >> >>> >> >> > "wikipedia-raw"); >> >> >>> >> >> > >> >> >>> >> >> > private static final Logger log = >>LoggerFactory.getLogger >> >> >>> >> >> > (WikipediaFeedStreamTask.class); >> >> >>> >> >> > >> >> >>> >> >> > @Override >> >> >>> >> >> > >> >> >>> >> >> > public void process(IncomingMessageEnvelope envelope, >> >> >>> >> >>MessageCollector >> >> >>> >> >> > collector, TaskCoordinator coordinator) { >> >> >>> >> >> > >> >> >>> >> >> > Map<String, Object> outgoingMap = >> >> >>> >> >> > WikipediaFeedEvent.toMap((WikipediaFeedEvent) >> >> >>> >>envelope.getMessage()); >> >> >>> >> >> > >> >> >>> >> >> > log.info(envelope.getMessage().toString()); >> >> >>> >> >> > >> >> >>> >> >> > collector.send(new >> >>OutgoingMessageEnvelope(OUTPUT_STREAM, >> >> >>> >> >> > outgoingMap)); >> >> >>> >> >> > >> >> >>> >> >> > } >> >> >>> >> >> > >> >> >>> >> >> > } >> >> >>> >> >> > >> >> >>> >> >> > >> >> >>> >> >> > On Mon, Aug 25, 2014 at 9:01 AM, Chris Riccomini < >> >> >>> >> >> > [email protected]> wrote: >> >> >>> >> >> > >> >> >>> >> >> > > Hey Shekar, >> >> >>> >> >> > > >> >> >>> >> >> > > Your thought process is on the right track. It's >>probably >> >> >>>best >> >> >>> to >> >> >>> >> >>start >> >> >>> >> >> > > with hello-samza, and modify it to get what you want. >>To >> >> >>>start >> >> >>> >>with, >> >> >>> >> >> > > you'll want to: >> >> >>> >> >> > > >> >> >>> >> >> > > 1. Write a simple StreamTask that just does something >> >>silly >> >> >>>like >> >> >>> >> >>just >> >> >>> >> >> > > print messages that it receives. >> >> >>> >> >> > > 2. Write a configuration for the job that consumes from >> >>just >> >> >>>the >> >> >>> >> >>stream >> >> >>> >> >> > > (alerts from different sources). >> >> >>> >> >> > > 3. Run this to make sure you've got it working. >> >> >>> >> >> > > 4. Now add your table join. This can be either a >> >>change-data >> >> >>> >>capture >> >> >>> >> >> > (CDC) >> >> >>> >> >> > > stream, or via a remote DB call. >> >> >>> >> >> > > >> >> >>> >> >> > > That should get you to a point where you've got your >>job >> >>up >> >> >>>and >> >> >>> >> >> running. >> >> >>> >> >> > > From there, you could create your own Maven project, >>and >> >> >>>migrate >> >> >>> >> >>your >> >> >>> >> >> > code >> >> >>> >> >> > > over accordingly. >> >> >>> >> >> > > >> >> >>> >> >> > > Cheers, >> >> >>> >> >> > > Chris >> >> >>> >> >> > > >> >> >>> >> >> > > On 8/24/14 1:42 AM, "Shekar Tippur" <[email protected]> >> >> >>>wrote: >> >> >>> >> >> > > >> >> >>> >> >> > > >Chris, >> >> >>> >> >> > > > >> >> >>> >> >> > > >I have gone thro the documentation and decided that >>the >> >> >>>option >> >> >>> >> >>that is >> >> >>> >> >> > > >most >> >> >>> >> >> > > >suitable for me is stream-table. >> >> >>> >> >> > > > >> >> >>> >> >> > > >I see the following things: >> >> >>> >> >> > > > >> >> >>> >> >> > > >1. Point samza to a table (database) >> >> >>> >> >> > > >2. Point Samza to a stream - Alert stream from >>different >> >> >>> sources >> >> >>> >> >> > > >3. Join key like a hostname >> >> >>> >> >> > > > >> >> >>> >> >> > > >I have Hello Samza working. To extend that to do what >>my >> >> >>>needs >> >> >>> >> >>are, I >> >> >>> >> >> am >> >> >>> >> >> > > >not sure where to start (Needs more code change OR >> >> >>> configuration >> >> >>> >> >> changes >> >> >>> >> >> > > >OR >> >> >>> >> >> > > >both)? >> >> >>> >> >> > > > >> >> >>> >> >> > > >I have gone thro >> >> >>> >> >> > > > >> >> >>> >> >> > >> >> >>> >> >> >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> >> >>> >> >> >>> >> >> >> http://samza.incubator.apache.org/learn/documentation/latest/api/overvie >> >> >>>w >> >> >>> >> >> > > . >> >> >>> >> >> > > >html >> >> >>> >> >> > > > >> >> >>> >> >> > > >Is my thought process on the right track? Can you >>please >> >> >>>point >> >> >>> >>me >> >> >>> >> >>to >> >> >>> >> >> the >> >> >>> >> >> > > >right direction? >> >> >>> >> >> > > > >> >> >>> >> >> > > >- Shekar >> >> >>> >> >> > > > >> >> >>> >> >> > > > >> >> >>> >> >> > > > >> >> >>> >> >> > > >On Thu, Aug 21, 2014 at 1:08 PM, Shekar Tippur >> >> >>> >><[email protected]> >> >> >>> >> >> > wrote: >> >> >>> >> >> > > > >> >> >>> >> >> > > >> Chris, >> >> >>> >> >> > > >> >> >> >>> >> >> > > >> This is perfectly good answer. I will start poking >>more >> >> >>>into >> >> >>> >> >>option >> >> >>> >> >> > #4. >> >> >>> >> >> > > >> >> >> >>> >> >> > > >> - Shekar >> >> >>> >> >> > > >> >> >> >>> >> >> > > >> >> >> >>> >> >> > > >> On Thu, Aug 21, 2014 at 1:05 PM, Chris Riccomini < >> >> >>> >> >> > > >> [email protected]> wrote: >> >> >>> >> >> > > >> >> >> >>> >> >> > > >>> Hey Shekar, >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> Your two options are really (3) or (4), then. You >>can >> >> >>>either >> >> >>> >>run >> >> >>> >> >> some >> >> >>> >> >> > > >>> external DB that holds the data set, and you can >> >>query it >> >> >>> >>from a >> >> >>> >> >> > > >>> StreamTask, or you can use Samza's state store >> >>feature to >> >> >>> >>push >> >> >>> >> >>data >> >> >>> >> >> > > >>>into a >> >> >>> >> >> > > >>> stream that you can then store in a partitioned >> >>key-value >> >> >>> >>store >> >> >>> >> >> along >> >> >>> >> >> > > >>>with >> >> >>> >> >> > > >>> your StreamTasks. There is some documentation here >> >>about >> >> >>>the >> >> >>> >> >>state >> >> >>> >> >> > > >>>store >> >> >>> >> >> > > >>> approach: >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> >>> >> >> >> http://samza.incubator.apache.org/learn/documentation/0.7.0/container/st >> >> >>> >> >> > > >>>ate >> >> >>> >> >> > > >>> -management.html >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>>< >> >> >>> >> >> > > >> >> >>> >> >> >> >> >>> >> >> >>>>> >> >> >>http://samza.incubator.apache.org/learn/documentation/0.7.0/container/ >> >> >>>>>s >> >> >>> >> >> > > >>>tate-management.html> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> (4) is going to require more up front effort from >>you, >> >> >>>since >> >> >>> >> >>you'll >> >> >>> >> >> > > >>>have >> >> >>> >> >> > > >>> to understand how Kafka's partitioning model works, >> >>and >> >> >>> setup >> >> >>> >> >>some >> >> >>> >> >> > > >>> pipeline to push the updates for your state. In the >> >>long >> >> >>> >>run, I >> >> >>> >> >> > believe >> >> >>> >> >> > > >>> it's the better approach, though. Local lookups on >>a >> >> >>> >>key-value >> >> >>> >> >> store >> >> >>> >> >> > > >>> should be faster than doing remote RPC calls to a >>DB >> >>for >> >> >>> >>every >> >> >>> >> >> > message. >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> I'm sorry I can't give you a more definitive >>answer. >> >>It's >> >> >>> >>really >> >> >>> >> >> > about >> >> >>> >> >> > > >>> trade-offs. >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> Cheers, >> >> >>> >> >> > > >>> Chris >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> On 8/21/14 12:22 PM, "Shekar Tippur" >> >><[email protected]> >> >> >>> >>wrote: >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> >Chris, >> >> >>> >> >> > > >>> > >> >> >>> >> >> > > >>> >A big thanks for a swift response. The data set is >> >>huge >> >> >>>and >> >> >>> >>the >> >> >>> >> >> > > >>>frequency >> >> >>> >> >> > > >>> >is in burst. >> >> >>> >> >> > > >>> >What do you suggest? >> >> >>> >> >> > > >>> > >> >> >>> >> >> > > >>> >- Shekar >> >> >>> >> >> > > >>> > >> >> >>> >> >> > > >>> > >> >> >>> >> >> > > >>> >On Thu, Aug 21, 2014 at 11:05 AM, Chris Riccomini >>< >> >> >>> >> >> > > >>> >[email protected]> wrote: >> >> >>> >> >> > > >>> > >> >> >>> >> >> > > >>> >> Hey Shekar, >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> This is feasible, and you are on the right >>thought >> >> >>> >>process. >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> For the sake of discussion, I'm going to pretend >> >>that >> >> >>>you >> >> >>> >> >>have a >> >> >>> >> >> > > >>>Kafka >> >> >>> >> >> > > >>> >> topic called "PageViewEvent", which has just >>the IP >> >> >>> >>address >> >> >>> >> >>that >> >> >>> >> >> > was >> >> >>> >> >> > > >>> >>used >> >> >>> >> >> > > >>> >> to view a page. These messages will be logged >>every >> >> >>>time >> >> >>> a >> >> >>> >> >>page >> >> >>> >> >> > view >> >> >>> >> >> > > >>> >> happens. I'm also going to pretend that you have >> >>some >> >> >>> >>state >> >> >>> >> >> called >> >> >>> >> >> > > >>> >>"IPGeo" >> >> >>> >> >> > > >>> >> (e.g. The maxmind data set). In this example, >>we'll >> >> >>>want >> >> >>> >>to >> >> >>> >> >>join >> >> >>> >> >> > the >> >> >>> >> >> > > >>> >> long/lat geo information from IPGeo to the >> >> >>>PageViewEvent, >> >> >>> >>and >> >> >>> >> >> send >> >> >>> >> >> > > >>>it >> >> >>> >> >> > > >>> >>to a >> >> >>> >> >> > > >>> >> new topic: PageViewEventsWithGeo. >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> You have several options on how to implement >>this >> >> >>> example. >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> 1. If your joining data set (IPGeo) is >>relatively >> >> >>>small >> >> >>> >>and >> >> >>> >> >> > changes >> >> >>> >> >> > > >>> >> infrequently, you can just pack it up in your >>jar >> >>or >> >> >>>.tgz >> >> >>> >> >>file, >> >> >>> >> >> > and >> >> >>> >> >> > > >>> open >> >> >>> >> >> > > >>> >> it open in every StreamTask. >> >> >>> >> >> > > >>> >> 2. If your data set is small, but changes >>somewhat >> >> >>> >> >>frequently, >> >> >>> >> >> you >> >> >>> >> >> > > >>>can >> >> >>> >> >> > > >>> >> throw the data set on some HTTP/HDFS/S3 server >> >> >>>somewhere, >> >> >>> >>and >> >> >>> >> >> have >> >> >>> >> >> > > >>>your >> >> >>> >> >> > > >>> >> StreamTask refresh it periodically by >> >>re-downloading >> >> >>>it. >> >> >>> >> >> > > >>> >> 3. You can do remote RPC calls for the IPGeo >>data >> >>on >> >> >>> every >> >> >>> >> >>page >> >> >>> >> >> > view >> >> >>> >> >> > > >>> >>event >> >> >>> >> >> > > >>> >> by query some remote service or DB (e.g. >> >>Cassandra). >> >> >>> >> >> > > >>> >> 4. You can use Samza's state feature to set your >> >>IPGeo >> >> >>> >>data >> >> >>> >> >>as a >> >> >>> >> >> > > >>>series >> >> >>> >> >> > > >>> >>of >> >> >>> >> >> > > >>> >> messages to a log-compacted Kafka topic >> >> >>> >> >> > > >>> >> ( >> >> >>> >> >> >> >>https://cwiki.apache.org/confluence/display/KAFKA/Log+Compaction >> >> >>> >> >> > ), >> >> >>> >> >> > > >>> and >> >> >>> >> >> > > >>> >> configure your Samza job to read this topic as a >> >> >>> bootstrap >> >> >>> >> >> stream >> >> >>> >> >> > > >>> >> ( >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> >>> >> >> >> http://samza.incubator.apache.org/learn/documentation/0.7.0/container/st >> >> >>> >> >> > > >>>r >> >> >>> >> >> > > >>> >>e >> >> >>> >> >> > > >>> >> ams.html). >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> For (4), you'd have to partition the IPGeo state >> >>topic >> >> >>> >> >>according >> >> >>> >> >> > to >> >> >>> >> >> > > >>>the >> >> >>> >> >> > > >>> >> same key as PageViewEvent. If PageViewEvent were >> >> >>> >>partitioned >> >> >>> >> >>by, >> >> >>> >> >> > > >>>say, >> >> >>> >> >> > > >>> >> member ID, but you want your IPGeo state topic >>to >> >>be >> >> >>> >> >>partitioned >> >> >>> >> >> > by >> >> >>> >> >> > > >>>IP >> >> >>> >> >> > > >>> >> address, then you'd have to have an upstream job >> >>that >> >> >>> >> >> > re-partitioned >> >> >>> >> >> > > >>> >> PageViewEvent into some new topic by IP address. >> >>This >> >> >>>new >> >> >>> >> >>topic >> >> >>> >> >> > will >> >> >>> >> >> > > >>> >>have >> >> >>> >> >> > > >>> >> to have the same number of partitions as the >>IPGeo >> >> >>>state >> >> >>> >> >>topic >> >> >>> >> >> (if >> >> >>> >> >> > > >>> IPGeo >> >> >>> >> >> > > >>> >> has 8 partitions, then the new >> >> >>>PageViewEventRepartitioned >> >> >>> >> >>topic >> >> >>> >> >> > > >>>needs 8 >> >> >>> >> >> > > >>> >>as >> >> >>> >> >> > > >>> >> well). This will cause your >> >>PageViewEventRepartitioned >> >> >>> >>topic >> >> >>> >> >>and >> >> >>> >> >> > > >>>your >> >> >>> >> >> > > >>> >> IPGeo state topic to be aligned such that the >> >> >>>StreamTask >> >> >>> >>that >> >> >>> >> >> gets >> >> >>> >> >> > > >>>page >> >> >>> >> >> > > >>> >> views for IP address X will also have the IPGeo >> >> >>> >>information >> >> >>> >> >>for >> >> >>> >> >> IP >> >> >>> >> >> > > >>> >>address >> >> >>> >> >> > > >>> >> X. >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> Which strategy you pick is really up to you. :) >> >>(4) is >> >> >>> the >> >> >>> >> >>most >> >> >>> >> >> > > >>> >> complicated, but also the most flexible, and >>most >> >> >>> >> >>operationally >> >> >>> >> >> > > >>>sound. >> >> >>> >> >> > > >>> >>(1) >> >> >>> >> >> > > >>> >> is the easiest if it fits your needs. >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> Cheers, >> >> >>> >> >> > > >>> >> Chris >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> On 8/21/14 10:15 AM, "Shekar Tippur" >> >> >>><[email protected]> >> >> >>> >> >>wrote: >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> >Hello, >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >I am new to Samza. I have just installed Hello >> >>Samza >> >> >>>and >> >> >>> >> >>got it >> >> >>> >> >> > > >>> >>working. >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >Here is the use case for which I am trying to >>use >> >> >>>Samza: >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >1. Cache the contextual information which >>contains >> >> >>>more >> >> >>> >> >> > information >> >> >>> >> >> > > >>> >>about >> >> >>> >> >> > > >>> >> >the hostname or IP address using >>Samza/Yarn/Kafka >> >> >>> >> >> > > >>> >> >2. Collect alert and metric events which >>contain >> >> >>>either >> >> >>> >> >> hostname >> >> >>> >> >> > > >>>or IP >> >> >>> >> >> > > >>> >> >address >> >> >>> >> >> > > >>> >> >3. Append contextual information to the alert >>and >> >> >>>metric >> >> >>> >>and >> >> >>> >> >> > > >>>insert to >> >> >>> >> >> > > >>> >>a >> >> >>> >> >> > > >>> >> >Kafka queue from which other subscribers read >>off >> >>of. >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >Can you please shed some light on >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >1. Is this feasible? >> >> >>> >> >> > > >>> >> >2. Am I on the right thought process >> >> >>> >> >> > > >>> >> >3. How do I start >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >I now have 1 & 2 of them working disparately. I >> >>need >> >> >>>to >> >> >>> >> >> integrate >> >> >>> >> >> > > >>> them. >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >Appreciate any input. >> >> >>> >> >> > > >>> >> > >> >> >>> >> >> > > >>> >> >- Shekar >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >>> >> >> >>> >> >> > > >> >> >> >>> >> >> > > >> >> >>> >> >> > > >> >> >>> >> >> > >> >> >>> >> >> >> >> >>> >> >> >> >>> >> >> >> >>> >> >> >>> >> >> >> >> >> >> >> >> >>
