Error running pyspark on The Littlest JupyterHub - jupyter-notebook

I’m having trouble running the pyspark kernel in my TLJH environment. The error I receive is as follows…
PermissionError: [Errno 13] Permission denied: ‘/root/anaconda3/bin/python’
Any thoughts on how to resolve? Anaconda is running as root and root has full access to /root/anaconda3/bin/python
Thanks!
Stuart

Related

Impossible to connect to a mysql Cleardb database on Heroku

My last build failed with this error message:
Executing script cache:clear [KO]
[KO]
Script cache:clear returned with error code 255
!!
!! In ExceptionConverter.php line 117:
!!
!! An exception occurred in the driver: SQLSTATE[HY000] [1226] User 'xxxxxxxx
!! xxxxx' has exceeded the 'max_user_connections' resource (current value: 15)
And when I try to connect to my database via CLI,
mysql -u xxxxxxxxxx -pxxxxxxxx -h us-cdbr-east-xxx.cleardb.com
I am getting this error message:
ERROR 1040 (HY000): Too many connections
The problem is that the dashboard of the database says : No connections are currently established to the database. Therefore, I guess that a hidden process might be running.
Do you have an idea on how to fix this issue? I have already restarted all the dynos but it didn't have any effect. Is restarting the dynos and restarting the app the same? I also read that I should stop background workers, but I have no clue on how to do this...

Error when Communicating with the server while Cluster Setup in Cloudera

I am trying to up Hadoop in Centos-7 usign CLoudera, but while Cluster Setup process (Single node), I am getting this error stating:
There was an error when communicating with the server. See the log file for more information.
I logged into cloudera-scm-agent.log file using
sudo cat /var/log/cloudera-scm-agent/cloudera-scm-agent.log
And I see Failed directory creation and connection refused errors.
The detailed log file can be found here.
Can someone please assist me on what am I doing wrong here?
Have you installed the cluster with single user mode? if so the system user "cloudera-scm" should have permission to perform read, write operation on service log, pid, data directory. From your log message, all services are refused to start because of improper file system permission.
stacks', u'bytes_free_warning_threshhold_bytes': 0, u'group': u'cloudera-scm', u'user': u'cloudera-scm', u'mode': 493}]
[01/Nov/2018 04:41:11 +0000] 28095 MainThread os_ops ERROR Failed directory creation: /var/log/zookeeper/stacks: [Errno 13] Permission denied: '/var/log/zookeeper'
[01/Nov/2018 04:41:11 +0000] 28095 MainThread process ERROR Could not evaluate resource {u'path': u'/var/log/zookeeper/stacks', u'bytes_free_warning_threshhold_bytes': 0, u'group': u'cloudera-scm', u'user': u'cloudera-scm', u'mode': 493}
Traceback (most recent call last):
File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.15.1-py2.7.egg/cmf/process.py", line 963, in _do_directory_resources
self.osops.mkabsdir(d["path"], user=d["user"], group=d["group"], mode=d["mode"])
File "/usr/lib64/cmf/agent/build/env/lib/python2.7/site-packages/cmf-5.15.1-py2.7.egg/cmf/util/os_ops.py", line 180, in mkabsdir
os.makedirs(path)
File "/usr/lib64/cmf/agent/build/env/lib64/python2.7/os.py", line 150, in makedirs
makedirs(head, mode)
File "/usr/lib64/cmf/agent/build/env/lib64/python2.7/os.py", line 157, in makedirs
mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/var/log/zookeeper'

bootstrap clodufiy3.4 error occured

I installed cloudify3.4 according to the cloudify DOCS. When I install the manager, and executed like this:
# cfy bootstrap --install-plugins -p openstack-manager-blueprint.yaml -i openstack-manager-blueprint-inputs.yaml
an error occurred:
[ERROR] Workflow failed: Task failed 'fabric_plugin.tasks.run_script' -> Timed out trying to connect to 192.168.17.15 (tried 5 times)
I have already build a extern network 192.168.17.0/24 and I have already installed
cloudify_docker_plugin-1.3.2-py27-none-linux_x86_64-Ubuntu-trusty.wgn
cloudify_fabric_plugin-1.4.1-py27-none-linux_x86_64-centos-Core.wgn
cloudify_fabric_plugin-1.4.1-py27-none-linux_x86_64-redhat-Maipo.wgn
cloudify_host_pool_plugin-1.4-py27-none-linux_x86_64-centos-Core.wgn
cloudify_openstack_plugin-1.4-py27-none-linux_x86_64-redhat-Maipo.wgn
So, how to solve this error? Thank you to everyone who helped me!
It seems that you can't connect the manager.
Please make sure that you have an ssh connection from the CLI to the manager.
Since you are bootstrapping an Openstack manager you should make sure to have an external IP if you are outside of Openstack or that the CLI is on the same network if you are on Openstack.

Jmap - Error connecting to remote debug server

My requirement is to create a dump file of heap memory of a remote server using Jmap.
I did this way.
jmap -dump:file=remoteDump.txt,format=b 3104
This worked fine as 3104 is the pid of a process from my local machine.
How do I do the same with remote server?
I tried
jmap -dump:file=remoteDump.txt,format=b 3104 54.197.228.33:8080
But it's failed.
I tried creating a debug server using jsadebugd, as below.
1.Started rmiregistry
rmiregistry -J-Xbootclasspath/p:$JAVA_HOME/lib/sa-jdi.jar
2.Ran jsadebugd
>jsadebugd 11594 54.197.228.33:9009
But the step 2 is throwing the following error:
Error attaching to process or starting server: sun.jvm.hotspot.debugger.D
Exception: Windbg Error: WaitForEvent failed!
at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.attach0(Na
thod)
at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.attach(Win
ggerLocal.java:152)
at sun.jvm.hotspot.HotSpotAgent.attachDebugger(HotSpotAgent.java:
at sun.jvm.hotspot.HotSpotAgent.setupDebuggerWin32(HotSpotAgent.j
)
at sun.jvm.hotspot.HotSpotAgent.setupDebugger(HotSpotAgent.java:3
at sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:313)
at sun.jvm.hotspot.HotSpotAgent.startServer(HotSpotAgent.java:220
at sun.jvm.hotspot.DebugServer.run(DebugServer.java:106)
at sun.jvm.hotspot.DebugServer.main(DebugServer.java:45)
at sun.jvm.hotspot.jdi.SADebugServer.main(SADebugServer.java:55)
Help me get out of it.
The reason why you can not attach to process could be that it is already attached to some other debuger or executed on other visual machine than your jmap is running.
Try to assure that process is not attached to any debuger and you attach to the same VM.

I get some errors trying to install cpXstack. It fails at the end

I'm trying to install cpXstack on my site http://tequierocali.org, But it fails every time I try to get it done.
I get the following errors, I wonder if anybody has figured this out:
Complete!
sed: can't read /var/spool/incron/root: No such file or directory
PID unreadable in: /usr/local/cpanel/3rdparty/mailman/data/master-qrunner.pid
[Errno 2] No such file or directory: '/usr/local/cpanel/3rdparty/mailman/data/master-qrunner.pid'
Is qrunner even running?
/etc/exim.pl.local.build syntax OK
PID unreadable in: /usr/local/cpanel/3rdparty/mailman/data/master-qrunner.pid
[Errno 2] No such file or directory: '/usr/local/cpanel/3rdparty/mailman/data/master-qrunner.pid'
Is qrunner even running?
/etc/exim.pl.local.build syntax OK
info [rebuildhttpdconf] 'local' datastore in use (/var/cpanel/conf/apache/local)
Built /usr/local/apache/conf/httpd.conf OK
Waiting for httpd to restart................finished.
httpd (/usr/local/apache/bin/httpd -k start -DSSL) running as root with PID 10333 (pidfile check method)
Apache successfully restarted.
[10366] [2013-02-07 06:36:31 +0200] [main] Current process '20664' stopped
[Thu Feb 7 06:36:32 2013] Starting /usr/local/cpanel/libexec/tailwatch/tailwatchd daemon
Log is at /usr/local/cpanel/logs/tailwatchd_log
cat: /opt/pifpm/pifpm.config: No such file or directory
./cpxstack.sh: line 39: /etc/init.d/php-fpm-5.3.21: No such file or directory
error reading information on service php-fpm-5.3.21: No such file or directory
./cpxstack.sh: line 39: /etc/init.d/php-fpm-5.4.11: No such file or directory
error reading information on service php-fpm-5.4.11: No such file or directory
Installation failed: contact cpxstack#sysally.net
Thanks,
Caro
You should check the initial stages of the error to understand what is really happening .
I am one of the programmers of this plugin ;I can assist you better if you provide the exact reason why the install failed .

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