I've installed a clean BigBlueButton on Ubuntu server but when I try to run it I can't and when I tried to debug I got this error.
java.io.IOException: error=24, Too many open files
Mar 12 05:35:11 NC-PH-2486 run-prod.sh[27006]: org.apache.catalina.LifecycleException: Failed to start component
Can anyone help?
Try changing LimitNOFILE=8024 from 1024 in /lib/systemd/system/bbb-web.service and then "sudo systemctl restart bbb-web".
Also note that BigBlueButton won't scale to use all of those cores.
Ref:
https://groups.google.com/forum/#!searchin/bigbluebutton-setup/LimitNOFILE|sort:date/bigbluebutton-setup/NkIt3Dq4HhY/nE0d31uoDgAJ
I am in the process of setting up a Riak Cluster on Raspberry Pis.
Unfortunately I get the following error message after changing the IP address.
Versions I used:
Debian Jessie (Raspberry PI)
riak (Github Clone Mar2017)
riak-cs2.1.1
stanchion-2.1.1
Using this guide I tried to change the IP addresses in the various .conf files.
https://docs.riak.com/riak/kv/latest/using/cluster-operations/changing-cluster-info/index.html
Works on 127.0.0.1:
$ ~/riak/rel/riak/bin/riak-admin test
Successfully completed 1 read/write cycle to 'riak#127.0.0.1'
Error Message (after changing IP:192.168.178.61):
sudo ./riak console
config is OK
-config /home/pi/neu/riak/rel/riak/data/generated.configs/app.2020.01.02.23.37.52.config -args_file /home/pi/neu/riak/rel/riak/data/generated.configs/vm.2020.01.02.23.37.52.args -vm_args /home/pi/neu/riak/rel/riak/data/generated.configs/vm.2020.01.02.23.37.52.args
Exec: /home/pi/neu/riak/rel/riak/bin/../erts-5.10.3/bin/erlexec -boot /home/pi/neu/riak/rel/riak/bin/../releases/2.2.3/riak -config /home/pi/neu/riak/rel/riak/data/generated.configs/app.2020.01.02.23.37.52.config -args_file /home/pi/neu/riak/rel/riak/data/generated.configs/vm.2020.01.02.23.37.52.args -vm_args /home/pi/neu/riak/rel/riak/data/generated.configs/vm.2020.01.02.23.37.52.args -pa /home/pi/neu/riak/rel/riak/bin/../lib/basho-patches -- console
Root: /home/pi/neu/riak/rel/riak/bin/..
Erlang R16B02_basho10 (erts-5.10.3) [source] [smp:4:4] [async-threads:64] [hipe] [kernel-poll:true] [frame-pointer]
[os_mon] memory supervisor port (memsup): Erlang has closed
[os_mon] cpu supervisor port (cpu_sup): Erlang has closed
{"Kernel pid terminated",application_controller,"{application_start_failure,riak_core,{bad_return,{{riak_core_app,start,[normal,[]]},{'EXIT',{{function_clause,[{orddict,fetch,['riak#192.168.178.61',[]],[{file,\"orddict.erl\"},{line,72}]},{riak_core_capability,renegotiate_capabilities,1,[{file,\"src/riak_core_capability.erl\"},{line,441}]},{riak_core_capability,handle_call,3,[{file,\"src/riak_core_capability.erl\"},{line,213}]},{gen_server,handle_msg,5,[{file,\"gen_server.erl\"},{line,585}]},{proc_lib,init_p_do_apply,3,[{file,\"proc_lib.erl\"},{line,239}]}]},{gen_server,call,[riak_core_capability,{register,{riak_core,vnode_routing},{capability,[proxy,legacy],legacy,{riak_core,legacy_vnode_routing,[{true,legacy},{false,proxy}]}}},infinity]}}}}}}"}
Crash dump was written to: ./log/erl_crash.dump
Kernel pid terminated (application_controller) ({application_start_failure,riak_core,{bad_return,{{riak_core_app,start,[normal,[]]},{'EXIT',{{function_clause,[{orddict,fetch,['riak#192.168.178.61',[
https://github.com/basho/riak/issues/999
martinsumner commented 3 days ago:
I might expect to see this if you hadn't done the step of either renaming (or deleting the contents of) the ring directory. Did you do this?
Also can you confirm if you're in the single-node or multi-node renaming scenario?
Ei3rb0mb3r commented 1 minute ago:
Many thanks for the quick feedback!
The error has been solved after I deleted the ring directory files.
../riak/rel/riak/data/ring/ rm -rf *
I have installed gerrit server setup in localhost. And after making the successful connection the Web UI has been launched. There i have registered with my gmail id in "Sign in with a Launchpad ID" option.
Its worked earlier, but now it shows the error "Provider is not supported, or was incorrectly entered." when i try to login. I had searched a lot and found some solution regarding the security issues in the installed java in the system. I have Oracle Jdk8 not OpenJdk in my system. so should i have to switch to Open Jdk. Here is my error log messages from log file.
Caused by: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:90)
at sun.security.validator.Validator.getInstance(Validator.java:179)
at sun.security.ssl.X509TrustManagerImpl.getValidator(X509TrustManagerImpl.java:312)
at sun.security.ssl.X509TrustManagerImpl.checkTrustedInit(X509TrustManagerImpl.java:171)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:184)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
... 66 more
Caused by: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty
at java.security.cert.PKIXParameters.setTrustAnchors(PKIXParameters.java:200)
at java.security.cert.PKIXParameters.<init>(PKIXParameters.java:120)
at java.security.cert.PKIXBuilderParameters.<init>(PKIXBuilderParameters.java:104)
at sun.security.validator.PKIXValidator.<init>(PKIXValidator.java:88)
... 78 more
Issue Fixed !
As i have been using Oracle Java 8, i have installed Open Jdk 7 with the following commnad.
sudo apt-get install ca-certificates-java
But issue resolved only when i have changed java home variable in gerrit.config file.
javaHome = /usr/lib/jvm/java-7-openjdk-amd64/jre
Now the issues fixed for me..
7:46:20 PM Gradle sync started
7:46:35 PM Gradle sync failed: Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the user guide chapter on the daemon at https://docs.gradle.org/2.10/userguide/gradle_daemon.html
Please read the following process output to find out more:
-----------------------
Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Consult IDE log for more details (Help | Show Log)
the jvm version is 1.7.0_79
and the studio version is 2.1.1
Error occurred during initialization of VM Could not reserve enough space for object heap Error: Could not create the Java Virtual Machine.
There's no space available in RAM. To fix go to /android-studio-dir/bin and edit studio.vmoptions and studio64.vmoptions to increment the -Xmx and to reserve more memory to Java. Note that the number of processes active may influence on that.
Probably, the /tmp location is full..
Found this somewhere..
Use df command
df
You should see an output with a line like this:
tmpfs 102400 102312 88 100% /tmp
So to change the size of the tmp file:
sudo mount -o remount,size=2G /tmp
Done! Now, It should work..
I am trying to implement titan graph database on cassandra for one of my applications. As per documentation, I have downloaded and extracted titan-cassandra-0.3.2 and when it trying to run titan.sh with titan-server-rexster.xml andtitan-server-cassandra.properties as arguments I am facing below error:
In below stack trace it says "Cannot locate /opt/isv/app/pkgs/titan-cassandra-0.3.2/config/cassandra.yaml" but I do have that file in that location. Could anyone please help?
WARN org.apache.cassandra.utils.CLibrary - Unable to lock JVM memory (ENOMEM). This can result in part of the JVM being swapped out, especially with mmapped I/O enabled. Increase RLIMIT_MEMLOCK or run Cassandra as root.
72 [pool-1-thread-1] ERROR org.apache.cassandra.config.DatabaseDescriptor - Fatal configuration error
org.apache.cassandra.exceptions.ConfigurationException: Cannot locate /opt/isv/app/pkgs/titan-cassandra-0.3.2/config/cassandra.yaml
at org.apache.cassandra.config.DatabaseDescriptor.getStorageConfigURL(DatabaseDescriptor.java:113)
at org.apache.cassandra.config.DatabaseDescriptor.loadYaml(DatabaseDescriptor.java:130)
at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:122)
at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:150)
at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:366)
at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:409)
at com.thinkaurelius.titan.diskstorage.cassandra.embedded.CassandraDaemonWrapper$CassandraStarter.run(CassandraDaemonWrapper.java:64)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Cannot locate /opt/isv/app/pkgs/titan-cassandra-0.3.2/config/cassandra.yaml
Fatal configuration error; unable to start server. See log for stacktrace.
A complete walkthrough for ENOMEM is here
http://docs.datastax.com/en/archived/cassandra/2.0/cassandra/troubleshooting/trblshootInsufficientResources_r.html also do not forget
Basically edit /etc/security/limits.conf file appending the following
memlock unlimited
nofile 100000
nproc 32768
as unlimited
and then run sysctl -p