I've installed RabbitMQ (latest version downloadable from RabbitMQ website) on my Windows 10 machine. It installed with ERlang 19.1.
I'm trying to install RabbitMQ Web UI Management Tools using the following command (using RabbitMQ Command Prompt):
rabbitmq-plugins enable rabbitmq_management
I'm getting the following error:
The directory name is invalid.
The filename, directory name, or volume label syntax is incorrect.
The filename, directory name, or volume label syntax is incorrect.
Plugin configuration unchanged.
Applying plugin configuration to rabbit#[0x7FF9A8527044]... failed.
* Could not contact node rabbit#[0x7FF9A8527044].
Changes will take effect at broker restart.
* Options: --online - fail if broker cannot be contacted.
--offline - do not try to contact broker.
I've looked up on SO and tried stopping and restarting, overriding erlang cookie, but nothing helps.
I think there's a problem with RabbitMQ itself. The service itself is marked as started, but if I try to telnet the default port (5672) then it fails (it's not a firewall issue - I've disabled it).
Also I don't see an log files created for RabbitMQ or any related Event Logs messages. So it's hard to diagnose exactly the problem.
I also tried uninstalling and re-install both erlang and RabbitMQ. Still didn't help.
How do I further diagnose the problem?
Found a solution to the problem (downgrading Erlang did not work in my case, but just in case I left it on Erlang 18 in case there were other issues with ver 19).
What puzzled my eye was this line: Applying plugin configuration to rabbit#[0x7FF9A8527044]... failed.. Seems like it's trying to connect to rabbit instance at a wrong machine name.
I then ran rabbitmqctl.bat status which failed but again showed that it's trying to connect to [0x7FF9A8527044] while the node name was rabbit#my-mchine-name. So I started reading the configuration section at RabbitMQ website and the solution was simple - setting the node name manually.
All I had to do is add an environment variable named RABBITMQ_NODENAME with the node name being rabbit#localhost. And that's it. Problem solved!
you may be running into issues with Erlang 19 incompatibility. there has been some history of Erlang 19 support problems with RMQ. Try installing Erlang 18 instead.
If that fails, I would recommend using Docker for Windows and installing / running RabbitMQ in that. I've moved all my services like RabbitMQ, MongoDB, etc. into Docker containers and it's made my life as a dev so much simpler.
In my case I had to trash the local account config located at : %APPDATA%\RabbitMQ\.
Deleting the entire folder and reinstalling the service did the trick.
Rabbitmq 3.6.14
Erlang 20.1 OTP
Related
I have recently installed rabbitmq with ErlanOTP on Windows 10 running on lattePanda
I ran rabbitmqctl status and got the following error:
C:\Program Files\RabbitMQ Server\rabbitmq_server-3.7.5\sbin>rabbitmqctl status
Status of node rabbit#DESKTOP-V6GQ6RF ...
Error: unable to perform an operation on node 'rabbit#DESKTOP-V6GQ6RF'. Please see diagnostics information and suggestions below.
Most common reasons for this are:
Target node is unreachable (e.g. due to hostname resolution, TCP connection or firewall issues)
CLI tool fails to authenticate with the server (e.g. due to CLI tool's Erlang cookie not matching that of the server)
Target node is not running
In addition to the diagnostics info below:
See the CLI, clustering and networking guides on http://rabbitmq.com/documentation.html to learn more
Consult server logs on node rabbit#DESKTOP-V6GQ6RF
DIAGNOSTICS
attempted to contact: ['rabbit#DESKTOP-V6GQ6RF']
rabbit#DESKTOP-V6GQ6RF:
connected to epmd (port 4369) on DESKTOP-V6GQ6RF
epmd reports node 'rabbit' uses port 25672 for inter-node and CLI tool traffic
TCP connection succeeded but Erlang distribution failed
Authentication failed (rejected by the remote node), please check the Erlang cookie
Current node details:
node name: 'rabbitmqcli2#DESKTOP-V6GQ6RF'
effective user's home directory: C:\Users\LattePanda
Erlang cookie hash: 8Kq9f/AaeixMvahU4G2v8A==
How can I get RabbitMQ up and running?
While trouble-shooting I discovered this thread https://groups.google.com/forum/#!topic/rabbitmq-users/a6sqrAUX_Fg
and set the environment variable to Erlang Cookie I found in %HOMEDRIVE%%HOMEPATH%\.erlang.cookie but it still doesn't seem to work.
The RabbitMQ team monitors the rabbitmq-users mailing list and only sometimes answers questions on StackOverflow.
It is important to copy the cookie from the correct location. This document explains where it is located based on Erlang version and Windows version. You don't mention which Erlang version you are using, but I suspect you will want to copy the C:\WINDOWS\system32\config\systemprofile\.erlang.cookie file to %HOMEDRIVE%%HOMEPATH%\.erlang.cookie. You should not have to set any environment variables so if you have, I recommend removing them and restarting your server.
I am evaluating the DataStax OpsCenter on a virtual machine to start managing/monitoring cassandra. I am following the online docs to create cluster topology models via OpsCenter LCM, but the error message doesn't provide much information for me to continue. The jobs status are,
error- MeldError, 400 Client Error: Bad Request for url: http://[ip_address]:8888/api/v1/lcm/internal/nodes/6185c776-9034-45b4-a54f-6eb9511274a2/package_information
Meld failed on name="testnode1" ssh-management-address=[ip_address]" node-id="6185c776-9034-45b4-a54f-6eb9511274a2" node-name="testnode1" job-id="1b792c69-bcca-489f-ad12-a6285ba84d59" stdout=" Meld has started... " stderr=""
My question is what might be wrong and any hint how to resolve that?
I am new to the cassandra and DataStax communities, please forgive me if any silly question asked!
Q: I used to be a buildbot user and DataStax agent looks like a Buildbot's slave. Why we don't need agent setup on the remote machine to work with opscenter? The working directory of agent is configured in opscenter?
The opscenterd.log, https://pastebin.com/TJsvmr6t
According to the compatibility of the tools set mentioned in https://docs.datastax.com/en/landing_page/doc/landing_page/compatibility.html#compatibilityDocument__opsc-compatibility , I actually use the OpsCenter v5.2 for monitoring and basic db operations. After trial-and-error of .yaml of Agent and .conf of Cassandra 2.2, the Dashboard works!
Knowledge gained,
The OpsCenter 5.2 actually works with Cassandra 2.2 which is not listed in the compatibility table
For beginner, if not sure where to start, try to install all the components on one machine to get idea of the least viable working setup. And from there to configure the actual dev/test/production environment.
I am trying to start zookeeper on a remote virtual machine. I use this for my project regularly and I do not have any problems while starting the zookeeper. But lately when I am trying to start the server I am getting an error.
When I give ./zkServer.sh start it shows zookeeper server started.
When I check for status using ./zkServer.sh status it shows "Error contacting service. It is probably not running."
I am totally working with 5 Virtual Machines. All these machines were fine initially. I started getting problems with machine 1. But recently I have the same problem with all my virtual machines. Can someone tell me what the issue is and suggest me a way to clear this issue?
Most probably Zookeeper server exited.
If we are running it on a Linux box, use the linux commands. Some of them:
ps -ef | grep -i zookeeper
jps
etc.
Also, try running it in foreground
zkServer.sh start-foreground
In My case the issue was $PATH issue...
You will get what was the issue by running zookeeper in foreground
zkServer.sh start-foreground
I encountered same problem,too. In my case problem is about zookeeper locations configuration is not same for each node so zookeeper can not provide Quorum and mentioned nodes can not be part of cluster.
Please be sure server definition for each node is same.
For example for all nodes, server definition must be same as below
server.0=ip0:2888:3888
server.1=ip1:2888:3888
server.2=ip2:2888:3888
server.3=ip3:2888:3888
server.4=ip4:2888:3888
In my case the issue was some how ClientPort attribute's value was missed in one of the box so in console it was showing as invalid config path.With the help of command 'zkServer.sh start-foreground' investigated and found root cause.
Main OS is windows 7 64bit. Using VM player to create two vm CentOS 5.6 system. The net connection is bridge. I installed Hbase on both of the CentOS system， one is master, the other is slave. When I enter the shell, and run status 'details'.
The error from master is
zookeeper.ZKConfig: no valid quorum servers found in zoo.cfg ERROR:
org.apache.hadoop.hbase.ZooKeeperConnectionException: An error is
preventing HBase from connecting to ZooKeeper
And the error from slave is
ERROR: org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase is
able to connect to ZooKeeper but the connection closes immediately.
This could be a sign that the server has too many connections (30 is
the default). Consider inspecting your ZK server logs for that error
and then make sure you are reusing HBaseConfiguration as often as you
can. See HTable's javadoc for more information.
Please give me some suggestion.
Thanks a lot
Check if this is within your .bashrc, if not, add them and restart all hbase services (do not forget to manually run them as well), that did it for me with a pseudo-distributed installation. My problem (and maybe yours as well) was that Hbase wasn't detecting it's configuration.
export HADOOP_CONF_DIR=/etc/hadoop/conf
export HBASE_CONF_DIR=/etc/hbase/conf
I see this very often on my machine. I don't have a failsafe cure, but end up running stop-all.sh, and deleting every place that hadoop and dfs (its a dfs failure) store their temp files. It seems to happen after my computer goes to sleep while dfs is running.
I am going to experiment with single-user mode to avoid this. I dont need distribution while developing.
I am trying to monitor a machine in which RabbitMQ is installed.RabbitMQ's broker is working well in that machine.
Now I want to monitor that machine using open source HypricHQ software.
The problem is the HypricHQ server can't find my RabbitMQ broker.My Hypric Agent is also working fine, i.e. in HypricHQ server the detail of RabbitMQ machine is showing.
I have checked the error in agent.log file the error logged in that file is:
2011-05-30 15:24:16,549 INFO [Thread-1] [SingleConnectionFactory] Established shared Rabbit Connection: org.springframework.erlang.connection.DefaultConnection#1265109
2011-05-30 15:24:16,574 ERROR [Thread-1] [AutoScan] AutoScan failed for RabbitMQ
org.springframework.erlang.ErlangBadRpcException: {badrpc,{'EXIT',{undef,[{rabbit_access_control,list_vhosts,[]},{rpc,'-handle_call_call/6-fun-0-',5}]}}}
at org.hyperic.hq.plugin.rabbitmq.core.HypericErlangTemplate.executeRpcAndConvert(HypericErlangTemplate.java:72)
at org.hyperic.hq.plugin.rabbitmq.core.HypericRabbitAdmin.getVirtualHosts(HypericRabbitAdmin.java:75)
at org.hyperic.hq.plugin.rabbitmq.detect.RabbitServerDetector.getServerResources(RabbitServerDetector.java:106)
at org.hyperic.hq.autoinventory.scanimpl.NullScan.scan(NullScan.java:83)
at org.hyperic.hq.autoinventory.Scanner.start(Scanner.java:198)
at org.hyperic.hq.autoinventory.ScanManager.mainRunLoop(ScanManager.java:141)
at org.hyperic.hq.autoinventory.ScanManager.access$000(ScanManager.java:41)
at org.hyperic.hq.autoinventory.ScanManager$1.run(ScanManager.java:107)
Why this error occure?
How can I overcome this error? The OS I am using is Windows 7.
Maybe it needs your broker to have the rabbitmq-management plugin installed?
Log into the server running the RabbitMQ broker and type
sudo rabbitmqctl status
Check that the version is one that is supported by Hypric. A lot of Linux distros have a very old version of RabbitMQ installed. It is easy enough to upgrade using the .deb or .rpm binaries on the RabbitMQ site so you should consider doing that.