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From Jagadish Venkatraman <jagadish1...@gmail.com>
Subject Re: Connection timed out error while installing "Hello Samza"
Date Wed, 20 Sep 2017 17:36:17 GMT
Hi Anantharaman,

It's likely that your server blocks the GIT protocol. If so, I'd recommend
cloning via HTTPS instead of git.

*First, determine if the git protocol is blocked on the server as follows:*

Please run:
     # connects to github default port
➜  ~ nc github.com 9418 < /dev/null; echo $?

You should see the output as "0". Any other exit code means that the GIT
protocol is blocked.

*If the above command gets you a non-zero exit code, please clone using
HTTPS as follows:*

git clone https://github.com/apache/samza.git

Alternately, you can edit the line in the bin/grid script replacing git
clone git://git.apache.org/samza.git with git clone
https://github.com/apache/samza.git
and re-run the same command.

Please let us know how it goes! :-)

Best,
Jagdish















On Wed, Sep 20, 2017 at 9:04 AM, Anantharaman, Srinatha (Contractor) <
Srinatha_Anantharaman@comcast.com> wrote:

> Yi,
>
> As you suggested this time I tried to install Samza on clean server (there
> is nothing installed on this server)
> Still I am getting connection timeout error, Please find below command
> line outputs.
> My System Admin/Dev Ops confirmed that this server does not have any
> firewall restrictions
>
>
> [root@csadatlak-wc-a1t ~]# echo $JAVA_HOME
> /usr/lib/jvm/java-1.8.0-openjdk
> [root@csadatlak-wc-a1t ~]# echo $PATH
> /usr/lib/jvm/java-1.8.0-openjdk/bin:/usr/lib/jvm/java-
> 1.8.0-openjdk/bin:/usr/lib64/qt-3.3/bin:/usr/local/bin:/
> usr/bin:/usr/local/sbin:/usr/sbin:/root/bin
> [root@csadatlak-wc-a1t ~]# clear
> [root@csadatlak-wc-a1t ~]# pwd
> /root
> [root@csadatlak-wc-a1t ~]# cd
> [root@csadatlak-wc-a1t ~]# set -o vi
> [root@csadatlak-wc-a1t ~]# ^Ct -o vi
> [root@csadatlak-wc-a1t ~]#
> [root@csadatlak-wc-a1t ~]#
> [root@csadatlak-wc-a1t ~]#
> [root@csadatlak-wc-a1t ~]#
> [root@csadatlak-wc-a1t ~]# cd /home/sanant003c/
> [root@csadatlak-wc-a1t sanant003c]# ll
> total 4
> drwxr-xr-x 7 root root 4096 Sep 20 15:32 hello-samza
> [root@csadatlak-wc-a1t sanant003c]# cd hello-samza/
> [root@csadatlak-wc-a1t hello-samza]# ll
> total 312
> drwxr-xr-x 2 root root    119 Sep 20 15:32 bin
> -rw-r--r-- 1 root root   6946 Sep 20 15:32 build.gradle
> drwxr-xr-x 2 root root     26 Sep 20 15:32 conf
> drwxr-xr-x 3 root root     20 Sep 20 15:32 gradle
> -rw-r--r-- 1 root root    898 Sep 20 15:32 gradle.properties
> -rwxr-xr-x 1 root root   5080 Sep 20 15:32 gradlew
> -rw-r--r-- 1 root root   2404 Sep 20 15:32 gradlew.bat
> -rw-r--r-- 1 root root  30449 Sep 20 15:32 LICENSE
> -rw-r--r-- 1 root root   9343 Sep 20 15:32 pom.xml
> -rw-r--r-- 1 root root   1095 Sep 20 15:32 README-gradle.md
> -rw-r--r-- 1 root root   1118 Sep 20 15:32 README.md
> drwxr-xr-x 3 root root     17 Sep 20 15:32 src
> -rw-r--r-- 1 root root 240217 Sep 20 15:32 wikipedia-raw.json
> [root@csadatlak-wc-a1t hello-samza]# bin/grid bootstrap
> Bootstrapping the system...
> EXECUTING: stop kafka
> Kafka is not installed. Run: bin/grid install kafka
> EXECUTING: stop yarn
> YARN is not installed. Run: bin/grid install yarn
> EXECUTING: stop zookeeper
> Zookeeper is not installed. Run: bin/grid install zookeeper
> EXECUTING: install samza
> ~/.samza/download /home/sanant003c/hello-samza
> Cloning into 'samza'...
> fatal: unable to connect to git.apache.org:
> git.apache.org[0: 54.84.58.65]: errno=Connection timed out
>
> [root@csadatlak-wc-a1t hello-samza]# bin/grid install kafka
> EXECUTING: install kafka
> Downloading kafka_2.11-0.10.1.1.tgz...
>   % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                  Dload  Upload   Total   Spent    Left
> Speed
> 100 32.8M  100 32.8M    0     0   614k      0  0:00:54  0:00:54 --:--:--
> 620k
> [root@csadatlak-wc-a1t hello-samza]# bin/grid install yarn
> EXECUTING: install yarn
> Downloading hadoop-2.6.1.tar.gz...
>   % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                  Dload  Upload   Total   Spent    Left
> Speed
> 100  187M  100  187M    0     0   717k      0  0:04:28  0:04:28 --:--:--
> 734k
> [root@csadatlak-wc-a1t hello-samza]# bin/grid install zookeeper
> EXECUTING: install zookeeper
> Downloading zookeeper-3.4.3.tar.gz...
>   % Total    % Received % Xferd  Average Speed   Time    Time     Time
> Current
>                                  Dload  Upload   Total   Spent    Left
> Speed
> 100 15.4M  100 15.4M    0     0   727k      0  0:00:21  0:00:21 --:--:--
> 747k
> [root@csadatlak-wc-a1t hello-samza]# bin/grid install samza
> EXECUTING: install samza
> ~/.samza/download /home/sanant003c/hello-samza
> Cloning into 'samza'...
> fatal: unable to connect to git.apache.org:
> git.apache.org[0: 54.84.58.65]: errno=Connection timed out
>
> Kindly help me to install Samza on my UNIX server
>
> Regards,
> ~Sri
>
> -----Original Message-----
> From: Yi Pan [mailto:nickpan47@gmail.com]
> Sent: Thursday, September 14, 2017 6:42 PM
> To: dev@samza.apache.org
> Subject: Re: Connection timed out error while installing "Hello Samza"
>
> P.S., the attachment you post w/ the previous email does not show up
> (Apache mailing list disallow attachments). If would be better if you send
> the command line outputs in pure text or html format.
>
> -Yi
>
> On Thu, Sep 14, 2017 at 3:34 PM, Yi Pan <nickpan47@gmail.com> wrote:
>
> > Hi, Anantharaman,
> >
> > A lot of firewall setup prevents "incoming connections", not "outgoing
> > connections" from a box. I.e. if you are downloading files, you are
> > establishing outgoing connections and it is fine. When you are hosting
> > a server (i.e. ZooKeeper or Kafka), you are making an "incoming
> connections"
> > to the box and will trigger the firewall rules.
> >
> > Just trying to pin down the problem, could you try on a Linux box w/o
> > any firewall rules setup and see whether that works? At least, verify
> > that localhost resolves to 127.0.0.1 and try telnet locahost 9092 or
> 2181?
> >
> > NOTE: Success in ping simply means that you can access via ICMP, not
> > guarantee you can establish TCP connection to the ports via firewall
> rules.
> >
> > -Yi
> >
> > On Thu, Sep 14, 2017 at 12:33 PM, Anantharaman, Srinatha (Contractor)
> > < Srinatha_Anantharaman@comcast.com> wrote:
> >
> >> That is a good catch Naveena the server which I am trying to install
> >> is an Hadoop edge node, it has kafka broker and Zookeeper client
> >> already installed for my Hadoop Does it matter If I am installing it
> >> on a separate folder?. My guess Even if there are conflicts on
> >> earlier installations it should throw some other error but not the
> >> connection time out
> >>
> >> Coming to your question " it could either related resolving "localhost"
> >> or firewall that prevents communication between ports" - how to prove
> >> it is because of Firewall issue. I am able to clone Samza files from
> Apache git.
> >> I can download any external files on this server
> >>
> >> ~Sri
> >>
> >> -----Original Message-----
> >> From: Navina Ramesh [mailto:nramesh@linkedin.com]
> >> Sent: Thursday, September 14, 2017 2:51 PM
> >> To: dev@samza.apache.org
> >> Subject: Re: Connection timed out error while installing "Hello Samza"
> >>
> >> I wonder if this has anything to do with previous kafka / zookeeper
> >> installed on your box. Just for sanity, try clearing /tmp/zookeeeper*
> >> and
> >> /tmp/kafka* before re-trying those steps.
> >>
> >>
> >> Same as Yi, I strongly suspect issues with your local laptop setup -
> >> it could either related resolving "localhost" or firewall that
> >> prevents communication between ports.
> >>
> >>
> >> Navina
> >>
> >> ________________________________
> >> From: Yi Pan <nickpan47@gmail.com>
> >> Sent: Thursday, September 14, 2017 11:37:46 AM
> >> To: dev@samza.apache.org
> >> Subject: Re: Connection timed out error while installing "Hello Samza"
> >>
> >> Hi, Anantharaman,
> >>
> >> I just did the same steps as you described in your email and all
> >> passed on my box. Hence, I strongly suspect that it is related to
> >> your local laptop network setup.
> >>
> >> Could you post all the command line output when you ran the sequence
> >> of commands?
> >>
> >> -Yi
> >>
> >> On Thu, Sep 14, 2017 at 11:21 AM, Yi Pan <nickpan47@gmail.com> wrote:
> >>
> >> > Hi, Ananarath,
> >> >
> >> > It is very strange that you are seeing this timeout exception that
> >> > we do not see. I am trying to follow the exact steps you did to see
> >> > whether there is anything broken. I will update you this afternoon.
> >> >
> >> > Meanwhile, could you check your hostname setup and firewall
> >> > configuration to see whether your local laptop has blocked access
> >> > via the public IP address to your laptop? Could you verify that
> >> > your localhost is resolved to
> >> > 127.0.0.1 and is accessible?
> >> >
> >> > -Yi
> >> >
> >> > On Thu, Sep 14, 2017 at 11:18 AM, Anantharaman, Srinatha
> >> > (Contractor) < Srinatha_Anantharaman@comcast.com> wrote:
> >> >
> >> >> Yi,
> >> >>
> >> >> Is there any alternate way to install Samza  Or solution to the
> >> >> connection time out error?
> >> >>
> >> >> Regards,
> >> >> ~Sri
> >> >>
> >> >> From: Anantharaman, Srinatha (Contractor)
> >> >> Sent: Wednesday, September 13, 2017 11:37 AM
> >> >> To: dev@samza.apache.org
> >> >> Subject: RE: Connection timed out error while installing "Hello
> Samza"
> >> >>
> >> >>
> >> >> Yi,
> >> >>
> >> >>
> >> >>
> >> >> I am trying to build Samza locally by following the steps provided
> >> >> by Navina.
> >> >>
> >> >> As per those steps kafka will be installed after Zookeeper, I am
> >> >> getting Error while starting Zookeeper after it is installed
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> Steps Followed :
> >> >>
> >> >>
> >> >>
> >> >> Yes. You can clone apache/samza locally and build it with:
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> cd <samza-workspace>
> >> >>
> >> >>
> >> >>
> >> >> gradle -b bootstrap.gradle
> >> >>
> >> >>
> >> >>
> >> >> ./gradlew clean build -x test
> >> >>
> >> >>
> >> >>
> >> >> ./gradlew publishToMavenLocal    ## This publishes a snapshot version
> >> of
> >> >> the latest apache/samza into your local maven repo
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> Then, head to hello-samza workspace and build again:
> >> >>
> >> >>
> >> >>
> >> >> cd <hello-samza-workspace>
> >> >>
> >> >>
> >> >>
> >> >> mvn clean package  ## This should create a build target
> >> >>
> >> >>
> >> >>
> >> >> ./bin/grid install zookeeper
> >> >>
> >> >>
> >> >>
> >> >> ./bin/grid start zookeeper
> >> >>
> >> >>
> >> >>
> >> >> ./bin/grid install kafka
> >> >>
> >> >>
> >> >>
> >> >> ./bin/grid start kafka
> >> >>
> >> >>
> >> >>
> >> >> ./bin/grid install yarn
> >> >>
> >> >>
> >> >>
> >> >> ./bin/grid start yarn
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> mkdir -p deploy/samza
> >> >>
> >> >>
> >> >>
> >> >> tar -xvf ./target/hello-samza-*-SNAPSHOT-dist.tar.gz -C
> >> >> deploy/samza
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> NOTE : BTW From the above steps I could not execute " gradle -b
> >> >> bootstrap.gradle" since that command does not exists
> >> >>
> >> >>
> >> >>
> >> >> Regards,
> >> >>
> >> >> ~Sri
> >> >>
> >> >>
> >> >>
> >> >> -----Original Message-----
> >> >> From: Yi Pan [mailto:nickpan47@gmail.com]
> >> >> Sent: Tuesday, September 12, 2017 7:13 PM
> >> >> To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >> Subject: Re: Connection timed out error while installing "Hello
> Samza"
> >> >>
> >> >>
> >> >>
> >> >> Hi, Anantharam,
> >> >>
> >> >>
> >> >>
> >> >> Could you confirm at which step your setup failed? It seems that
> >> >> your zookeeper server is running. Could you check to see whether
> >> >> your Kafka broker is running? You can either do a telnet localhost
> >> >> 9092 or do a ps auxww | grep kafka to see whether you got any broker
> running.
> >> >>
> >> >>
> >> >>
> >> >> Sometimes, the Kafka service takes time to start on a single laptop.
> >> >> You can just try to run ./bin/grid start kafka
> >> >>
> >> >>
> >> >>
> >> >> again to see whether the service is up.
> >> >>
> >> >>
> >> >>
> >> >> Thanks!
> >> >>
> >> >>
> >> >>
> >> >> -Yi
> >> >>
> >> >>
> >> >>
> >> >> On Tue, Sep 12, 2017 at 11:38 AM, Anantharaman, Srinatha
> >> >> (Contractor) <
> >> >> Srinatha_Anantharaman@comcast.com<mailto:Srinatha_Anantharam
> >> >> an@comcast.com>> wrote:
> >> >>
> >> >>
> >> >>
> >> >> > Find below Zookeeper logs:
> >> >>
> >> >> >
> >> >>
> >> >> > 2017-09-12 17:05:19,124 [myid:] - INFO
> >> >> > [main:QuorumPeerConfig@101]
> >> >> > -
> >> >>
> >> >> > Reading configuration from: /app/home/eventsvc/samza-git/
> >> >>
> >> >> > hello-samza/deploy/zookeeper/bin/../conf/zoo.cfg
> >> >>
> >> >> > 2017-09-12 17:05:19,133 [myid:] - INFO
> >> >>
> >> >> > [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set
> >> >> > to
> >> >> > 3
> >> >>
> >> >> > 2017-09-12 17:05:19,134 [myid:] - INFO
> >> >>
> >> >> > [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to
> >> >> > 0
> >> >>
> >> >> > 2017-09-12 17:05:19,134 [myid:] - INFO
> >> >>
> >> >> > [main:DatadirCleanupManager@101]
> >> >>
> >> >> > - Purge task is not scheduled.
> >> >>
> >> >> > 2017-09-12 17:05:19,135 [myid:] - WARN
> >> >> > [main:QuorumPeerMain@113] -
> >> >>
> >> >> > Either no config or no quorum defined in config, running  in
> >> >>
> >> >> > standalone mode
> >> >>
> >> >> > 2017-09-12 17:05:19,161 [myid:] - INFO
> >> >> > [main:QuorumPeerConfig@101]
> >> >> > -
> >> >>
> >> >> > Reading configuration from: /app/home/eventsvc/samza-git/
> >> >>
> >> >> > hello-samza/deploy/zookeeper/bin/../conf/zoo.cfg
> >> >>
> >> >> > 2017-09-12 17:05:19,162 [myid:] - INFO
> >> >> > [main:ZooKeeperServerMain@95]
> >> >>
> >> >> > - Starting server
> >> >>
> >> >> > 2017-09-12 17:05:19,175 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:zookeeper.version=3.4.3-1240972, built on 02/06/2012
> >> >> > 10:48
> >> >>
> >> >> > GMT
> >> >>
> >> >> > 2017-09-12 17:05:19,176 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:host.name=codehdplak-po-r19p.sys.comcast.net
> >> >>
> >> >> > 2017-09-12 17:05:19,176 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:java.version=1.8.0_31
> >> >>
> >> >> > 2017-09-12 17:05:19,177 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:java.vendor=Oracle Corporation
> >> >>
> >> >> > 2017-09-12 17:05:19,177 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:java.home=/usr/lib/jvm/java-1.8.0-openjdk-1.
> >> >>
> >> >> > 8.0.31-2.b13.el7.x86_64/jre
> >> >>
> >> >> > 2017-09-12 17:05:19,178 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:java.class.path=/app/home/eventsvc/samza-git/
> >> >>
> >> >> > hello-samza/deploy/zookeeper/bin/../build/classes:/app/
> >> >>
> >> >> > home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../
> >> >>
> >> >> > build/lib/*.jar:/app/home/eventsvc/samza-git/hello-
> >> >>
> >> >> > samza/deploy/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/
> >> >>
> >> >> > app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/
> >> >>
> >> >> > bin/../lib/slf4j-api-1.6.1.jar:/app/home/eventsvc/samza-
> >> >>
> >> >> > git/hello-samza/deploy/zookeeper/bin/../lib/netty-3.
> >> >>
> >> >> > 2.2.Final.jar:/app/home/eventsvc/samza-git/hello-
> >> >>
> >> >> > samza/deploy/zookeeper/bin/../lib/log4j-1.2.15.jar:/app/
> >> >>
> >> >> > home/eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../
> >> >>
> >> >> > lib/jline-0.9.94.jar:/app/home/eventsvc/samza-git/hello-
> >> >>
> >> >> > samza/deploy/zookeeper/bin/../zookeeper-3.4.3.jar:/app/home/
> >> >>
> >> >> > eventsvc/samza-git/hello-samza/deploy/zookeeper/bin/../
> >> >>
> >> >> > src/java/lib/*.jar:/app/home/eventsvc/samza-git/hello-
> >> >>
> >> >> > samza/deploy/zookeeper/bin/../conf:
> >> >>
> >> >> > 2017-09-12 17:05:19,178 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:java.library.path=/usr/java/packages/lib/amd64:/
> >> >>
> >> >> > usr/lib64:/lib64:/lib:/usr/lib
> >> >>
> >> >> > 2017-09-12 17:05:19,179 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:java.io.tmpdir=/tmp
> >> >>
> >> >> > 2017-09-12 17:05:19,179 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:java.compiler=<NA>
> >> >>
> >> >> > 2017-09-12 17:05:19,180 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:os.name=Linux
> >> >>
> >> >> > 2017-09-12 17:05:19,180 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:os.arch=amd64
> >> >>
> >> >> > 2017-09-12 17:05:19,181 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:os.version=3.10.0-123.20.1.el7.x86_64
> >> >>
> >> >> > 2017-09-12 17:05:19,181 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:user.name=root
> >> >>
> >> >> > 2017-09-12 17:05:19,182 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:user.home=/root
> >> >>
> >> >> > 2017-09-12 17:05:19,182 [myid:] - INFO  [main:Environment@98] -
> >> >> > Server
> >> >>
> >> >> > environment:user.dir=/app/home/eventsvc/samza-git/hello-
> >> >>
> >> >> > samza/deploy/zookeeper
> >> >>
> >> >> > 2017-09-12 17:05:19,195 [myid:] - INFO
> >> >> > [main:ZooKeeperServer@733]
> >> >> > -
> >> >>
> >> >> > tickTime set to 2000
> >> >>
> >> >> > 2017-09-12 17:05:19,195 [myid:] - INFO
> >> >> > [main:ZooKeeperServer@742]
> >> >> > -
> >> >>
> >> >> > minSessionTimeout set to -1
> >> >>
> >> >> > 2017-09-12 17:05:19,195 [myid:] - INFO
> >> >> > [main:ZooKeeperServer@751]
> >> >> > -
> >> >>
> >> >> > maxSessionTimeout set to -1
> >> >>
> >> >> > 2017-09-12 17:05:19,213 [myid:] - INFO
> >> >>
> >> >> > [main:NIOServerCnxnFactory@110] - binding to port
> >> >> > 0.0.0.0/0.0.0.0:2181
> >> >>
> >> >> > 2017-09-12 17:05:19,240 [myid:] - INFO
> >> >> > [main:FileTxnSnapLog@238] -
> >> >>
> >> >> > Snapshotting: 0x0 to /tmp/zookeeper/version-2/snapshot.0
> >> >>
> >> >> > 2017-09-12 17:05:19,673 [myid:] - INFO
> >> >> > [NIOServerCxn.Factory:0.0.0.0/
> >> >>
> >> >> > 0.0.0.0:2181:NIOServerCnxnFactory@213] - Accepted socket
> >> >> > connection
> >> >>
> >> >> > from
> >> >>
> >> >> > /0:0:0:0:0:0:0:1:21754
> >> >>
> >> >> > 2017-09-12 17:17:40,265 [myid:] - WARN
> >> >> > [NIOServerCxn.Factory:0.0.0.0/
> >> >>
> >> >> > 0.0.0.0:2181:NIOServerCnxn@349] - caught end of stream exception
> >> >>
> >> >> > EndOfStreamException: Unable to read additional data from client
> >> >>
> >> >> > sessionid 0x0, likely client has closed socket
> >> >>
> >> >> >         at org.apache.zookeeper.server.NIOServerCnxn.doIO(
> >> >>
> >> >> > NIOServerCnxn.java:220)
> >> >>
> >> >> >         at org.apache.zookeeper.server.NIOServerCnxnFactory.run(
> >> >>
> >> >> > NIOServerCnxnFactory.java:224)
> >> >>
> >> >> >         at java.lang.Thread.run(Thread.java:745)
> >> >>
> >> >> > 2017-09-12 17:17:40,267 [myid:] - INFO
> >> >> > [NIOServerCxn.Factory:0.0.0.0/
> >> >>
> >> >> > 0.0.0.0:2181:NIOServerCnxn@1000] - Closed socket connection for
> >> >> > client
> >> >>
> >> >> > /0:0:0:0:0:0:0:1:21754 (no session established for client)
> >> >>
> >> >> > 2017-09-12 17:18:06,236 [myid:] - INFO
> >> >> > [NIOServerCxn.Factory:0.0.0.0/
> >> >>
> >> >> > 0.0.0.0:2181:NIOServerCnxnFactory@213] - Accepted socket
> >> >> > connection
> >> >>
> >> >> > from /
> >> >>
> >> >> > 127.0.0.1:48071
> >> >>
> >> >> > 2017-09-12 17:18:06,247 [myid:] - INFO
> >> >> > [NIOServerCxn.Factory:0.0.0.0/
> >> >>
> >> >> > 0.0.0.0:2181:ZooKeeperServer@838] - Client attempting to
> >> >> > establish new
> >> >>
> >> >> > session at /127.0.0.1:48071
> >> >>
> >> >> > 2017-09-12 17:18:06,250 [myid:] - INFO
> >> >> > [SyncThread:0:FileTxnLog@199]
> >> >>
> >> >> > - Creating new log file: log.1
> >> >>
> >> >> > 2017-09-12 17:18:06,263 [myid:] - INFO
> >> >>
> >> >> > [SyncThread:0:ZooKeeperServer@604]
> >> >>
> >> >> > - Established session 0x15e770d61920000 with negotiated timeout
> >> >> > 6000
> >> >>
> >> >> > for client /127.0.0.1:48071
> >> >>
> >> >> > 2017-09-12 17:18:06,321 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:create cxid:0x5
> >> >> > zxid:0x3
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error Path:/brokers Error:KeeperErrorCode
> >> >> > =
> >> >>
> >> >> > NoNode for /brokers
> >> >>
> >> >> > 2017-09-12 17:18:06,342 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:create cxid:0xb
> >> >> > zxid:0x7
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error Path:/config Error:KeeperErrorCode
> >> >> > =
> >> >>
> >> >> > NoNode for /config
> >> >>
> >> >> > 2017-09-12 17:18:06,356 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:create cxid:0x13
> >> >> > zxid:0xc
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error Path:/admin Error:KeeperErrorCode =
> >> >>
> >> >> > NoNode for /admin
> >> >>
> >> >> > 2017-09-12 17:18:06,457 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:create cxid:0x1b
> >> >> > zxid:0x11
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error Path:/cluster Error:KeeperErrorCode
> >> >> > =
> >> >>
> >> >> > NoNode for /cluster
> >> >>
> >> >> > 2017-09-12 17:18:06,973 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:setData cxid:0x25
> >> >>
> >> >> > zxid:0x15
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error Path:/controller_epoch
> >> >>
> >> >> > Error:KeeperErrorCode = NoNode for /controller_epoch
> >> >>
> >> >> > 2017-09-12 17:18:07,050 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:delete cxid:0x34
> >> >> > zxid:0x17
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error
> >> >> > Path:/admin/preferred_replica_election
> >> >>
> >> >> > Error:KeeperErrorCode = NoNode for
> >> >> > /admin/preferred_replica_election
> >> >>
> >> >> > 2017-09-12 17:18:07,288 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:create cxid:0x3f
> >> >> > zxid:0x18
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error Path:/brokers Error:KeeperErrorCode
> >> >> > =
> >> >>
> >> >> > NodeExists for /brokers
> >> >>
> >> >> > 2017-09-12 17:18:07,290 [myid:] - INFO  [ProcessThread(sid:0
> >> cport:-1)::
> >> >>
> >> >> > PrepRequestProcessor@617] - Got user-level KeeperException when
> >> >>
> >> >> > processing sessionid:0x15e770d61920000 type:create cxid:0x40
> >> >> > zxid:0x19
> >> >>
> >> >> > txntype:-1 reqpath:n/a Error Path:/brokers/ids
> >> >> > Error:KeeperErrorCode =
> >> >>
> >> >> > NodeExists for /brokers/ids
> >> >>
> >> >> >
> >> >>
> >> >> >
> >> >>
> >> >> >
> >> >>
> >> >> > -----Original Message-----
> >> >>
> >> >> > From: Yi Pan [mailto:nickpan47@gmail.com]
> >> >>
> >> >> > Sent: Tuesday, September 12, 2017 2:02 PM
> >> >>
> >> >> > To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >>
> >> >> > Subject: Re: Connection timed out error while installing "Hello
> >> Samza"
> >> >>
> >> >> >
> >> >>
> >> >> > Hi, Anantharaman,
> >> >>
> >> >> >
> >> >>
> >> >> > Could you post your zookeeper startup logs here?
> >> >>
> >> >> >
> >> >>
> >> >> > On Tue, Sep 12, 2017 at 10:21 AM, Anantharaman, Srinatha
> >> >> > (Contractor)
> >> >>
> >> >> > < Srinatha_Anantharaman@comcast.com<mailto:Srinatha_Anantharam
> >> >> an@comcast.com>> wrote:
> >> >>
> >> >> >
> >> >>
> >> >> > > It hangs while bringing up the service
> >> >>
> >> >> > >
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]# pwd
> >> >>
> >> >> > > /app/home/eventsvc/samza-git/hello-samza
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]# ./bin/grid install
> >> >> > > zookeeper
> >> >>
> >> >> > > EXECUTING: install zookeeper
> >> >>
> >> >> > > Using previously downloaded file /root/.samza/download/
> >> >>
> >> >> > > zookeeper-3.4.3.tar.gz [root@codehdplak-po-r19p hello-samza]#
> >> >>
> >> >> > > ./bin/grid start zookeeper
> >> >>
> >> >> > > EXECUTING: start zookeeper
> >> >>
> >> >> > > JMX enabled by default
> >> >>
> >> >> > > Using config:
> >> >>
> >> >> > > /app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/
> >> >>
> >> >> > > bin/../conf/zoo.cfg
> >> >>
> >> >> > > Starting zookeeper ... STARTED
> >> >>
> >> >> > > Waiting for zookeeper to start...
> >> >>
> >> >> > >
> >> >>
> >> >> > > ^C
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]# ./bin/grid start
> >> >> > > zookeeper^C
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]# ./bin/grid install
> >> >> > > kafka
> >> >>
> >> >> > > EXECUTING: install kafka
> >> >>
> >> >> > > Using previously downloaded file /root/.samza/download/kafka_2.
> >> >>
> >> >> > > 11-0.10.1.1.tgz
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]# ./bin/grid start kafka
> >> >>
> >> >> > > EXECUTING: start kafka
> >> >>
> >> >> > > Waiting for kafka to start...
> >> >>
> >> >> > > Ncat: Connection refused.
> >> >>
> >> >> > > .Ncat: Connection refused.
> >> >>
> >> >> > > .Ncat: Connection refused.
> >> >>
> >> >> > > .^C
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]#
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > -----Original Message-----
> >> >>
> >> >> > > From: Navina Ramesh [mailto:nramesh@linkedin.com]
> >> >>
> >> >> > > Sent: Tuesday, September 12, 2017 12:43 PM
> >> >>
> >> >> > > To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >>
> >> >> > > Subject: Re: Connection timed out error while installing
> >> >> > > "Hello
> >> Samza"
> >> >>
> >> >> > >
> >> >>
> >> >> > > Yes. You can clone apache/samza locally and build it with:
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > cd <samza-workspace>
> >> >>
> >> >> > >
> >> >>
> >> >> > > gradle -b bootstrap.gradle
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./gradlew clean build -x test
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./gradlew publishToMavenLocal    ## This publishes a snapshot
> >> version
> >> >> of
> >> >>
> >> >> > > the latest apache/samza into your local maven repo
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > Then, head to hello-samza workspace and build again:
> >> >>
> >> >> > >
> >> >>
> >> >> > > cd <hello-samza-workspace>
> >> >>
> >> >> > >
> >> >>
> >> >> > > mvn clean package  ## This should create a build target
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./bin/grid install zookeeper
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./bin/grid start zookeeper
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./bin/grid install kafka
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./bin/grid start kafka
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./bin/grid install yarn
> >> >>
> >> >> > >
> >> >>
> >> >> > > ./bin/grid start yarn
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > mkdir -p deploy/samza
> >> >>
> >> >> > >
> >> >>
> >> >> > > tar -xvf ./target/hello-samza-*-SNAPSHOT-dist.tar.gz -C
> >> >> > > deploy/samza
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > After this, you can follow steps in the tutorial to "Run" the
> >> >>
> >> >> > > example Samza job.
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > HTH! Let me know if you need further help.
> >> >>
> >> >> > >
> >> >>
> >> >> > > Navina
> >> >>
> >> >> > >
> >> >>
> >> >> > > ________________________________
> >> >>
> >> >> > > From: Anantharaman, Srinatha (Contractor)
> >> >> > > <Srinatha_Anantharaman@
> >> >>
> >> >> > > comcast.com>
> >> >>
> >> >> > > Sent: Tuesday, September 12, 2017 9:21:53 AM
> >> >>
> >> >> > > To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >>
> >> >> > > Subject: RE: Connection timed out error while installing
> >> >> > > "Hello
> >> Samza"
> >> >>
> >> >> > >
> >> >>
> >> >> > > Navina,
> >> >>
> >> >> > >
> >> >>
> >> >> > > Is there any other way we can install Hello Samza?
> >> >>
> >> >> > >
> >> >>
> >> >> > > Regards,
> >> >>
> >> >> > > ~Sri
> >> >>
> >> >> > >
> >> >>
> >> >> > > -----Original Message-----
> >> >>
> >> >> > > From: Navina Ramesh [mailto:nramesh@linkedin.com]
> >> >>
> >> >> > > Sent: Tuesday, September 12, 2017 11:42 AM
> >> >>
> >> >> > > To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >>
> >> >> > > Subject: Re: Connection timed out error while installing
> >> >> > > "Hello
> >> Samza"
> >> >>
> >> >> > >
> >> >>
> >> >> > > Ok. I tried again for the "latest" branch in hello-samza and
> >> >> > > it
> >> >>
> >> >> > > still works.
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > > While installing it says "Building samza from master..."
> >> >>
> >> >> > >
> >> >>
> >> >> > > It is expected to build from "master" in apache/samza repo.
> >> >> > > So, the
> >> >>
> >> >> > > output line is expected.
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > It is weird that you are unable to connect. Is it possible you
> >> >> > > are
> >> >>
> >> >> > > behind a firewall or something? Can you try to ping "
> >> git.apache.org"
> >> >> ?
> >> >>
> >> >> > > Or try the setup on a different box?
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > Navina
> >> >>
> >> >> > >
> >> >>
> >> >> > > ________________________________
> >> >>
> >> >> > > From: Anantharaman, Srinatha (Contractor)
> >> >> > > <Srinatha_Anantharaman@
> >> >>
> >> >> > > comcast.com>
> >> >>
> >> >> > > Sent: Tuesday, September 12, 2017 8:33:30 AM
> >> >>
> >> >> > > To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >>
> >> >> > > Subject: RE: Connection timed out error while installing
> >> >> > > "Hello
> >> Samza"
> >> >>
> >> >> > >
> >> >>
> >> >> > > Navina,
> >> >>
> >> >> > >
> >> >>
> >> >> > > I tried again but still same error
> >> >>
> >> >> > >
> >> >>
> >> >> > > While installing it says "Building samza from master..."
> >> >>
> >> >> > >
> >> >>
> >> >> > > But when after I cloned I executed " git checkout latest"
> >> >>
> >> >> > >
> >> >>
> >> >> > > Regards,
> >> >>
> >> >> > > ~Sri
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > -----Original Message-----
> >> >>
> >> >> > > From: Navina Ramesh [mailto:nramesh@linkedin.com]
> >> >>
> >> >> > > Sent: Tuesday, September 12, 2017 11:10 AM
> >> >>
> >> >> > > To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >>
> >> >> > > Subject: Re: Connection timed out error while installing
> >> >> > > "Hello
> >> Samza"
> >> >>
> >> >> > >
> >> >>
> >> >> > > Hi Anantharaman,
> >> >>
> >> >> > >
> >> >>
> >> >> > > It looks like a transient connection failure to connect to
> >> >> > > Apache's
> >> >>
> >> >> > > git. I tried on my host and it seems to be working.
> >> >>
> >> >> > >
> >> >>
> >> >> > > Can you give it another shot?
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > If it still doesn't work, please let me know if you are
> >> >> > > running the
> >> >>
> >> >> > > command under the "master" or "latest" branch of
> samza-hello-samza.
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > Thanks!
> >> >>
> >> >> > >
> >> >>
> >> >> > > Navina
> >> >>
> >> >> > >
> >> >>
> >> >> > > ________________________________
> >> >>
> >> >> > > From: Anantharaman, Srinatha (Contractor)
> >> >> > > <Srinatha_Anantharaman@
> >> >>
> >> >> > > comcast.com>
> >> >>
> >> >> > > Sent: Tuesday, September 12, 2017 7:45:37 AM
> >> >>
> >> >> > > To: dev@samza.apache.org<mailto:dev@samza.apache.org>
> >> >>
> >> >> > > Subject: Connection timed out error while installing "Hello
> Samza"
> >> >>
> >> >> > >
> >> >>
> >> >> > > Hi,
> >> >>
> >> >> > >
> >> >>
> >> >> > > I am trying to install "Hello Samza" on a single node
> >> >> > > Initially I
> >> >>
> >> >> > > have installed Kafka, Yarn and Zookeeper using  bin/grid
> >> >> > > install
> >> >>
> >> >> > > kafka/yarn/zookeeper When I am trying bin/grid bootstrap
> >> >> > > getting
> >> >>
> >> >> > > connection timed out error It also mentions no kafka, yarn and
> >> >>
> >> >> > > zookeeper installed
> >> >>
> >> >> > >
> >> >>
> >> >> > > Please find below the error message
> >> >>
> >> >> > >
> >> >>
> >> >> > > [root@codehdplak-po-r19p bin]# cd ..
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]#  bin/grid install kafka
> >> >>
> >> >> > > EXECUTING: install kafka
> >> >>
> >> >> > > Using previously downloaded file /root/.samza/download/kafka_2.
> >> >>
> >> >> > > 11-0.10.1.1.tgz
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]# bin/grid install yarn
> >> >>
> >> >> > > EXECUTING: install yarn
> >> >>
> >> >> > > Using previously downloaded file
> >> >>
> >> >> > > /root/.samza/download/hadoop-2.6.1.tar.gz
> >> >>
> >> >> > > [root@codehdplak-po-r19p hello-samza]# bin/grid install
> >> >> > > zookeeper
> >> >>
> >> >> > > EXECUTING: install zookeeper
> >> >>
> >> >> > > Using previously downloaded file /root/.samza/download/
> >> >>
> >> >> > > zookeeper-3.4.3.tar.gz [root@codehdplak-po-r19p hello-samza]#
> >> >>
> >> >> > > bin/grid bootstrap Bootstrapping the system...
> >> >>
> >> >> > > EXECUTING: stop kafka
> >> >>
> >> >> > > No kafka server to stop
> >> >>
> >> >> > > EXECUTING: stop yarn
> >> >>
> >> >> > > no resourcemanager to stop
> >> >>
> >> >> > > no nodemanager to stop
> >> >>
> >> >> > > EXECUTING: stop zookeeper
> >> >>
> >> >> > > JMX enabled by default
> >> >>
> >> >> > > Using config:
> >> >>
> >> >> > > /app/home/eventsvc/samza-git/hello-samza/deploy/zookeeper/
> >> >>
> >> >> > > bin/../conf/zoo.cfg
> >> >>
> >> >> > > Stopping zookeeper ... no zookeeper to stop (could not find
> >> >> > > file
> >> >>
> >> >> > > /tmp/zookeeper/zookeeper_server.pid)
> >> >>
> >> >> > > EXECUTING: install samza
> >> >>
> >> >> > > Building samza from master...
> >> >>
> >> >> > > ~/.samza/download /app/home/eventsvc/samza-git/hello-samza
> >> >>
> >> >> > > Cloning into 'samza'...
> >> >>
> >> >> > > fatal: unable to connect to git.apache.org:
> >> >>
> >> >> > > git.apache.org[0: 54.84.58.65]: errno=Connection timed out
> >> >>
> >> >> > >
> >> >>
> >> >> > >
> >> >>
> >> >> > > Could you please help me to resolve this issue?
> >> >>
> >> >> > >
> >> >>
> >> >> > > Regards,
> >> >>
> >> >> > > ~Sri
> >> >>
> >> >> > >
> >> >>
> >> >> >
> >> >>
> >> >
> >> >
> >>
> >
> >
>



-- 
Jagadish V,
Graduate Student,
Department of Computer Science,
Stanford University

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