I'm trying to get my own cluster with Ambari following this official guide https://cwiki.apache.org/confluence/display/AMBARI/Quick+Start+Guide#space-menu-link-content. But I cannot copy repository on this command wget -O /etc/yum.repos.d/ambari.repo http://public-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.5.1.0/ambari.repo
I am using centos7.4
As a result I have problem 403:Forbidden. I also tried to get this page via browser but I got an error.
I also tried to use one of this repos https://docs.cloudera.com/HDPDocuments/Ambari-2.2.0.0/bk_Installing_HDP_AMB/content/_ambari_repositories.html or similar but there's still nothing.
Could you help me guys?)
"Effective Jan 31, 2021, all Cloudera software requires a subscription and must be accessed via the paywall", please check https://www.cloudera.com/downloads.html
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Ambari built. Network on virtual machines set. Trying to install cluster with the installation wizard of ambari UI. Could not get passed from "Get Started" to "Select version".
There is this error in the logs:
Could not load repo results
java.io.IOException: Server returned HTTP response code: 403 for URL: http://s3.amazonaws.com/dev.hortonworks.com/HDP/hdp_urlinfo.json
Found question with same problem which was not resolved
Screenshot from UI:
#eGs
It looks like you missed some steps and prerequisites before installing ambari. 127.0.0.1 should not be used to access the UI. Ambari docs require use to use FQDNs for all nodes and hosts.
Additionally, the 403 error above is result from using versions of ambari/hdp which cloudera has moved behind a paywall. User/password is required to access these assets now.
You should try with Ambari 2.7.4 and repos and artifacts that are not behind a paywall.
I'm a student working on a test cluster, consisting of around 25 hosts. We installed using Ambari and have FreeIpa running on a host as a dns and ldap server. The rest are typical Hadoop
infrastructure. Hive was failing and I wondered whether the db connection parameters used during the Ambari installation were incorrect and I tried to find a way to re-run the db connection process. I didn't get anywhere and it was late so I left it, ambari interface working.
Next morning, ambari webUI seems to be down. I thought that maybe the webserver needed restarted so I tried the following:
[akidd#dw ~]$ sudo ambari-server start
Using python /usr/bin/python
Starting ambari-server
ERROR: Exiting with exit code 1.
REASON: Unable to detect a system user for Ambari Server.
- If this is a new setup, then run the "ambari-server setup" command to create the user
- If this is an upgrade of an existing setup, run the "ambari-server upgrade" command.
Refer to the Ambari documentation for more information on setup and upgrade.
Can anyone help me to understand what could have happened?
If I run ambari-server setup will the existing cluster be ok assuming I create everything like for like with how it was originally?
Thanks for your help!
#user3535074 You should try to start it with the user that installed it.
If you do run ambari-server setup as current user, remember to choose No the following options:
Customize user account for ambari-server daemon [y/n] (n)? n
Do you want to change Oracle JDK [y/n] (n)? n
Enter advanced database configuration [y/n] (n)? n
More info on the following post, including how to backup ambari database before running setup again:
https://community.cloudera.com/t5/Support-Questions/Ambari-server-failed-to-start-after-system-reboot-Below-is/td-p/203806
I've been struggling to install Neo4j spatial for quite some time now using several methods I've found on the Web.
I am using neo4j-community-3.0.3, but I don't remember the link I got it from. It was a pre-compiled version from an ftp site (I believe it was an /archives folder somewhere on neo4j's website but I can't find it in google for the life of me). If someone has a link for downloading precompiled versions of neo4j that would be greatly appreciated. The neo4j other-releases webpage only provides recent versions: https://neo4j.com/download/other-releases/
I tried compiling my own version of neo4j from github but to be honest it is very confusing, as the directory tree is extremely dense. It seems like both community and enterprise versions are included in the same repo, without READMEs, so I don't even know where to begin.
As far as the plugin goes, I have tried both the precompiled version, and compiling my own. For the precompiled, I have followed instructions on the git page to the tee.
https://github.com/neo4j-contrib/spatial#using-the-neo4j-spatial-server-plugin
I downloaded the jar file, and copied it over to $NEO4J_HOME/plugins/
Then I restarted the neo4j server. Finally I make the rest call to see if the plugin has been loaded, but I do not see it.
$ http :7474/db/data/ -a neo4j
http: password for neo4j#localhost:7474:
HTTP/1.1 200 OK
Access-Control-Allow-Origin: *
Content-Length: 795
Content-Type: application/json; charset=UTF-8
Date: Fri, 01 Jul 2016 19:49:44 GMT
Server: Jetty(9.2.9.v20150224)
{
"batch": "http://localhost:7474/db/data/batch",
"constraints": "http://localhost:7474/db/data/schema/constraint",
"cypher": "http://localhost:7474/db/data/cypher",
"extensions": {},
"extensions_info": "http://localhost:7474/db/data/ext",
"indexes": "http://localhost:7474/db/data/schema/index",
"neo4j_version": "3.0.3",
"node": "http://localhost:7474/db/data/node",
"node_index": "http://localhost:7474/db/data/index/node",
"node_labels": "http://localhost:7474/db/data/labels",
"relationship": "http://localhost:7474/db/data/relationship",
"relationship_index": "http://localhost:7474/db/data/index/relationship",
"relationship_types": "http://localhost:7474/db/data/relationship/types",
"transaction": "http://localhost:7474/db/data/transaction"
}
The compiled version gave me the same result, only it takes longer to achieve. I cloned the git repo for version 3.0.2, and run the following:
git clone git://github.com/neo4j/spatial.git spatial
cd spatial
mvn clean package -Dmaven.test.skip=true install
Note: This mvn command actually failed for me at one point, but after some googling I found that this command worked
mvn clean compile package assembly:single -Dmaven.test.skip=true install
Finally I run
cp target/neo4j-spatial-0.17-neo4j-3.0.2-server-plugin.jar $NEO4J_HOME/plugins
$NEO4J_HOME/bin/neo4j restart
And voila, the exact same results as before (no plugin listing).
I have never had so much trouble installing something. I really do not want to go back to versions 2.* because I want to take advantage of the new bolt driver with python, and get the latest and greatest performance. Please, any help is greatly appreciated. (Even just finding an archive of direct links to precompiled versions of neo4j would help me).
Okay so I figured out several issues which were probably the cause to my confusion.
Issue 1:
If you start the server as root (sudo), you must stop the server as root!
Issue 2:
Make sure you do not have another version simultaneously running (with default port 7474).
I believe a combination of these 2 issues were the real culprit to my problem. It would be great if Neo4J had some sort of check upon startup whether or not that port is already being used.
Also, it is very confusing when attempting to stop the service as someone other than the original user, Neo4J shows the following output:
$ sudo bin/neo4j start
Starting Neo4j.
WARNING: Max 1024 open files allowed, minimum of 40000 recommended. See the Neo4j manual.
Started neo4j (pid 25418). By default, it is available at http://localhost:7474/
There may be a short delay until the server is ready.
See /opt/neo4j/neo4j-community-3.0.2/logs/neo4j.log for current status.
$ bin/neo4j stop
Neo4j not running
rm: remove write-protected regular file ‘/opt/neo4j/neo4j-community-3.0.2/run/neo4j.pid’? ^C
That last line caught my attention and then after running
$ ps aux | grep neo
I found that Neo4j WAS actually running.
As far as the download link goes, credit to William in the comments above.
He pointed me to http://dist.neo4j.org/neo4j-community-3.0.2-unix.tar.gz,
I suppose one can just change the version number in the url if they want other ones.
So figuring this out, I found that the 3.0.2 spatial plugin indeed does show up in the response from http://localhost:7474/db/data/ for neo4j version 3.0.3. However, I am going to stick to using neo4j version 3.0.2 just to be safe for now.
I have a host configured into Ambari which no longer exists. Ambari still thinks it's there. When I try to delete it through the UI I get:
400 status code received on DELETE method for API:
/api/v1/clusters/handy091015/hosts/r-hadoopeco-celeryworker-07ac46a4.hbinternal.com/host_components/ZOOKEEPER_CLIENT
Error message: Bad Request
When I try to delete it via the api, with the command below, I get the same host information as with a GET:
curl -H "X-Requested-By: ambari" -DELETE http://admin:admin#ambari.handy-internal.com//api/v1/clusters/handy091015/hosts/r-hadoopeco-celeryworker-07ac46a4.hbinternal.com
I have tried the instructions here to no avail:
https://cwiki.apache.org/confluence/display/AMBARI/Using+APIs+to+delete+a+service+or+all+host+components+on+a+host
My question is: how do I get Ambari to no longer know about/try to do things with this host.
I am not able to reproduce your behaviour with Ambari 2.1.2 and HDP 2.3 stack.
Limitation:
Note that host removing is supported only for hosts with no master components, so if they are present, then deleting is not possible.
Options:
Try to do ambari-server restart, sometimes it have intermittent issues
If this is an option, I recomend you to do ambari-server reset and install it from scratch. If you don't have much setup, it will save your time probably.
If not, you may want to post ambari-server.log file additionally. This may help to debug the core issue
Another option - just ignore that host, it will not do much harm to you. You can move it to maintenance mode, that will ease cluster operation.
i tried google, youtube for some kind of demo's or instructions .. but couldn't find any..
i tried going through the james server's website and i also tried some article on ibm
http://www.ibm.com/developerworks/java/library/j-james1/index.html
but everything in vain..
i am new to these things and i am trying to host a mail server on my machine to send mails using php code..
i downloaded a source package of stable version of james from
http://james.apache.org/download.cgi#Apache_James_2.3.2_is_the_stable_version
the instructions i found told me to redirect to james/bin and run a file called run.bat
but when i run it all i get is
using phoenix home
using phoenix tmpdir
using java home
and then
shutting sown
phoenix 4.2
i am installing it on windows 7
can someone help me out with it please..
According to described symptoms I suppose that you downloaded wrong version (smth like as james-x.x.x-src.zip).
In your case (windows 7) you need other one james-binary-x.x.x.zip
james-binary-x.x.x.zip has the same easy installation. Just unzip files under any directory. launch [INSTALLDIR]\bin\run.bat