How to setup cartridge applications replication between few Tarantool routers on different phisical/virtual servers?
Same as any other nodes - you should press Join existing replicaset instead of Create new replicaset when configuring a new router in admin UI.
If you' experiencing any particular issues, please specify them too.
BTW, the screenshot you posted, seems to contain the answer already.
Related
Just trying out splunk, have had an issue with integrating a search head cluster with an indexer cluster.
I have 3 machines in a search head cluster and 3 machines in an indexer cluster. These are all on CentOS7, no firewall installed, all machines are able to ping / view each others splunk instaces (ip:8000 / ip:8089).
When following https://docs.splunk.com/Documentation/Splunk/6.6.2/DistSearch/SHCandindexercluster specifically
splunk edit cluster-config -mode searchhead -master_uri 10.152.31.202:8089 -secret newsecret123
I get an error of
Could not contact master. Check that the master is up, the master_uri=10.152.31.202:8089 and secret are specified correctly
I have removed the https:// part from the IP's above as I couldn't post with them included.
I have set the pass4SymmKey to be the same on all servers.
thanks
Please check shclustering pass4symmkey in both search head cluster and in the master.
i suspect pass4symmkey issue.
You should check splunkd.log to see what the error is. I would recommend not setting up the Pass4symKey and verifying it works first, if not then you found your issue.
Also, you did not mention having an extra server acting as the cluster master. This should be an independent server from your indexers. You have one right?
I have two clusters, one in local virtual machine another in remote cloud. Both clusters in Standalone mode.
My Environment:
Scala: 2.10.4
Spark: 1.5.1
JDK: 1.8.40
OS: CentOS Linux release 7.1.1503 (Core)
The local cluster:
Spark Master: spark://local1:7077
The remote cluster:
Spark Master: spark://remote1:7077
I want to finish this:
Write codes(just simple word-count) in IntelliJ IDEA locally(on my laptp), and set the Spark Master URL to spark://local1:7077 and spark://remote1:7077, then run my codes in IntelliJ IDEA. That is, I don't want to use spark-submit to submit a job.
But I got some problem:
When I use the local cluster, everything goes well. Run codes in IntelliJ IDEA or use spark-submit can submit job to cluster and can finish the job.
But When I use the remote cluster, I got a warning log:
TaskSchedulerImpl: Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient resources
It is sufficient resources not sufficient memory!
And this log keep printing, no further actions. Both spark-submit and run codes in IntelliJ IDEA result the same.
I want to know:
Is it possible to submit codes from IntelliJ IDEA to remote cluster?
If it's OK, does it need configuration?
What are the possible reasons that can cause my problem?
How can I handle this problem?
Thanks a lot!
Update
There is a similar question here, but I think my scene is different. When I run my codes in IntelliJ IDEA, and set Spark Master to local virtual machine cluster, it works. But I got Initial job has not accepted any resources;... warning instead.
I want to know whether the security policy or fireworks can cause this?
Submitting code programatically (e.g. via SparkSubmit) is quite tricky. At the least there is a variety of environment settings and considerations -handled by the spark-submit script - that are quite difficult to replicate within a scala program. I am still uncertain of how to achieve it: and there have been a number of long running threads within the spark developer community on the topic.
My answer here is about a portion of your post: specifically the
TaskSchedulerImpl: Initial job has not accepted any resources; check
your cluster UI to ensure that workers are registered and have
sufficient resources
The reason is typically there were a mismatch on the requested memory and/or number of cores from your job versus what were available on the cluster. Possibly when submitting from IJ the
$SPARK_HOME/conf/spark-defaults.conf
were not properly matching the parameters required for your task on the existing cluster. You may need to update:
spark.driver.memory 4g
spark.executor.memory 8g
spark.executor.cores 8
You can check the spark ui on port 8080 to verify that the parameters you requested are actually available on the cluster.
I'm using ActiveMQ 5.10 and would like to create a user that has read-only access through the web console.
Red Hat published this article, mentioning that it's not really read only due to a bug in ActiveMQ.
According to the bug report AMQ-4567, the bug is fixed as of ActiveMQ 5.9. However, I'm not seeing it work appropriately.
I have tried a number of different configurations, with the most recent being two separate JAAS implementations, one for Jetty and one for ActiveMQ. The relevant property files are excerpted below.
I can mostly log in to the web console using the "system" user. But the guest user doesn't work at all. The application user (appuser) doesn't need access to the web console at all.
My authN/authZ needs are pretty trivial: one admin user, one application account, and one read-only monitoring account.
Is there any good way to get this working with a recent version of ActiveMQ (>= 5.9.0)?
groups.properties
admins=system
users=appuser,admin
guests=guest
users.properties
system={password redacted}
appuser=appuser
guest=guest
jetty-realm.properties
system: MD5:46cf1b5451345f5176cd70713e0c9e07,user,admin
guest: guest,guest
As an aside, I used the Jetty tutorial and the Rundeck instructions to figure out the jetty-realm.properties file and chapter 6 of ActiveMQ in Action to work out the ActiveMQ JAAS.
I was finally able to get to what I wanted by deploying the web console to an external Tomcat instance. I assume that when it runs out of process, it can't bypass security and so has to use whatever credentials you provide. In this case, I gave the Tomcat instance the read-only JMX user credentials.
It's not great, as there is no security trimmed UI. You can still attempt to create new destinations, delete destinations, etc. When you try with a read-only user, you get an error. That gets a "D" for UX, but a "B" for security.
There are scripts that build the admin server, then create clusters, managed servers, machines etc and when this domain is built, it is seen that an additional phantom server osb_server1 with port 8011, is getting built that isn't attached to any cluster or any machine.
This is built when the wlsb.jar was being referenced during one of the scripts.
Once after the admin server is up and running and we have other managed servers as well, Was trying to remove osb_server1 and this error creeps up
weblogic.management.configuration.AppDeploymentMBeanImpl.isCacheInAppDirectorySet()
Errors must be corrected before processding
There are like 120 default deployments on OSB that are targeted to osb_server1, was trying to retarget them to another server, but that is also throwing an error ...
Any ideas ???
That's due to the weird behaviour/bug of the standard osb template. There is a discussion here. http://theheat.dk/blog/?p=1255.
I didnt follow the steps given by Oracle(as in the URL). What I did was,
I keep the default osb_server1, and make it part of the cluster during the domain creation(ie, it's the first server). Once the domain is created, I re-set the osb_server1 to the desired value. That way the singleton services will still be deployed to the 1st server and others to cluster. Using WLST:
readDomain(domain_name)
cd('/Servers/osb_server1')
set('ListenPort', osb1_listen_port)
set('Name', osb1_name)
cd('/Servers/' + osb1_name + '/ServerDiagnosticConfig/osb_server1')
set('Name', osb1_name)
updateDomain()
closeDomain()
I want to be able to "spin up" additional WebLogic 11g managed servers in a cluster to add additional horizontal instances.
The use case is that I start with a WebLogic cluster that has X instances and I want to add an additional instance dynamically i.e. using a script and using a live system (without any downtime).
What can I use (e.g. WLST?) to create the additional managed server, configure it e.g. add it to the domain? Has anyone done this?
here is an example.
You can do a svr.setCluster and svr.setMachine
Here is an example with WLST:
Create:
connect('username','password')
edit()
startEdit()
cmo.createServer('managed1')
cd('Servers/managed1')
Add server to cluster (after cd to server added above)
cmo.setListenPort(ListenPort)
cmo.setCluster("MyCluster")
cmo.setMachine(Machinename)
Reaching/creating a cluster in WLST works in a similar way:
cd('/')
cmo.createCluster('MyCluster')
cd('/Clusters/MyCluster')
cmo.setClusterAddress('myhost:port,myhost2:port')
cmo.setClusterMessagingMode('unicast')