I installed influx in my CentOS 8.2 Server.
[root#dele opt]# influxd version
InfluxDB 2.0.2 (git: 84496e507a) build_date: 2020-11-19T03:59:35Z
[root#dele opt]# influx version
Influx CLI 2.0.2 (git: 84496e507a) build_date: 2020-11-19T03:59:35Z
I started influxd:
influxd &
there it LISTEN on 8086.
tcp6 0 0 :::8086 :::* LISTEN
but I cannot connect to influxd:
[root#fastnetmon opt]# influx -host localhost -p 8086
Error: unknown shorthand flag: 'o' in -ost
See 'influx -h' for help
[root#fastnetmon opt]# influx --host localhost --p 8086
Error: unknown flag: --host
See 'influx -h' for help
nor by command:
[root#dele opt]# /usr/bin/influx -precision rfc3339
Error: unknown shorthand flag: 'p' in -precision
After struggling for sometime, I verified that these commands are not supported by 2.0 version.
In case of 2.0 version, you can perform queries in the influxdb in the "Data Explorer section". In 2.0 version, you have buckets similarly to databases and you can create them from cli as below example :
influx bucket create -n <bucketname> --org-id <Organisation ID> -r 10h -t <your token>
Token are generated from the homepage of the influxdb and you can access every part of your InfluxDB 2.0 instance from this homepage . You can access your organizations, dashboards, and documentation from here.
I'm setting a backup/ sync within an Ubuntu network using rsync.
Assume that a Desktop (Ubuntu 18.04)-ip: 10.0.0.13
Running a docker with two Containers :
Client_A: 2001 -> 22/tcp , 8001 -> 80/tcp
Client_B: 2002 -> 22/tcp , 8002 -> 80/tcp
All 3 images are ubuntu, apache2 installed and running
dir:
DesktopOS Container1 Container2
10.0.0.13:80 10.0.0.13:8001 10.0.0.13:8002
⊢var ⊢var ⊢var
⊢www ⊢www ⊢www
⊢html ⊢html ⊢html
⊢1.txt ⊢2.txt ⊢3.txt
all three txt can be accessed in browser
When i try to pull 3.txt to Container1:
rsync -av -e 'ssh -p 2002' --rsh=ssh user#10.0.0.13/var/www/html/ ~/BACKUP/
1.txt has received.
How to access the 3.txt in Container1?
Please use the IP Address since I am simulating a real network, maybe 1 docker on 1 device in the real world.
Finally I found I installed ssh only, doesn't install the ssh-server.
Otherwise, the firewall blocks the access.
#find out port 22, 2002, 2001 etc.
#from netstat result, is it listening?
netstat | grep 2002
Install ssh server
sudo apt install tasksel
sudo tasksel install openssh-server
for Firewall:
sudo ufw allow 2001,2002
and it solved, thanks for your patients who try to answer me.
I'm using docker version of neo4j (v3.1.0) and I'm having difficulties connecting to neo4j server using neo4j-shell.
After running an instance of neo4r:3.1.0 docker, I run a bash inside the container:
$ docker exec -it neo4j /bin/bash
And from there I try to run the neo4j-shell like this:
/var/lib/neo4j/bin/neo4j-shell
But it errors:
$ /var/lib/neo4j/bin/neo4j-shell
ERROR (-v for expanded information):
Connection refused
-host Domain name or IP of host to connect to (default: localhost)
-port Port of host to connect to (default: 1337)
-name RMI name, i.e. rmi://<host>:<port>/<name> (default: shell)
-pid Process ID to connect to
-c Command line to execute. After executing it the shell exits
-file File containing commands to execute, or '-' to read from stdin. After executing it the shell exits
-readonly Connect in readonly mode (only for connecting with -path)
-path Points to a neo4j db path so that a local server can be started there
-config Points to a config file when starting a local server
Example arguments for remote:
-port 1337
-host 192.168.1.234 -port 1337 -name shell
-host localhost -readonly
...or no arguments for default values
Example arguments for local:
-path /path/to/db
-path /path/to/db -config /path/to/neo4j.config
-path /path/to/db -readonly
I also tried other hosts like: localhost, 127.0.0.1 and 172.17.0.6 (the container IP). Since it didn't work I tried to list open ports on my container:
$ netstat -l
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 :::7687 :::* LISTEN
tcp 0 0 :::7473 :::* LISTEN
tcp 0 0 :::7474 :::* LISTEN
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node Path
As you can see there's no 1337 open! I've looked into the config file and the line for specifying port is commented out which means it should be set to its default value (1337).
Can anyone help me connect to neo4j using neo4j-shell?
BTW, the neo4j server is up and running and I can use its web access through port :7474.
In 3.1 it seems the shell is not enabled by default.
You will need to pass your own configuration file with the shell enabled :
Uncomment
# Enable a remote shell server which Neo4j Shell clients can log in to.
dbms.shell.enabled=true
(I find the amount of worker for changing one value in docker quite heavy but yeah..)
Or use the new cypher-shell :
ikwattro#graphaware-team ~> docker ps -a | grep 'neo4j'
34b3c6718504 neo4j:3.1.0 "/docker-entrypoint.s" 2 minutes ago Up 2 minutes 7473-7474/tcp, 7687/tcp compassionate_easley
2395bd0b1fe9 neo4j:3.1.0 "/docker-entrypoint.s" 5 minutes ago Exited (143) 3 minutes ago cranky_goldstine
949feacbc0f9 neo4j:3.1.0 "/docker-entrypoint.s" 5 minutes ago Exited (130) 5 minutes ago modest_boyd
c38572b078de neo4j:3.0.6-enterprise "/docker-entrypoint.s" 6 weeks ago Exited (0) 6 weeks ago fastfishpim_neo4j_1
ikwattro#graphaware-team ~> docker exec --interactive --tty compassionate_easley bin/cypher-shell
username: neo4j
password: *****
Connected to Neo4j 3.1.0 at bolt://localhost:7687 as user neo4j.
Type :help for a list of available commands or :exit to exit the shell.
Note that Cypher queries must end with a semicolon.
neo4j>
NB: Cypher-shell supports begin and commit :
neo4j> :begin
neo4j# create (n:Node);
Added 1 nodes, Added 1 labels
neo4j# :commit;
neo4j>
-
neo4j> :begin
neo4j# create (n:Person {name:"John"});
Added 1 nodes, Set 1 properties, Added 1 labels
neo4j# :rollback
neo4j> :commit
There is no open transaction to commit
neo4j>
http://neo4j.com/docs/operations-manual/current/tools/cypher-shell/
I am trying to run solr on my machine. I have made everthing available for the same.
For example java and ruby versions are same as asked in the tutorials around.
This is how I am doing it.
solr_wrapper -d solr/config/ --collection_name hydra-development --version 6.3.0
This throws the followign error.
`exec': Failed to execute solr start: (RuntimeError)
Port 8983 is already being used by another process (pid: 1814)
Please choose a different port using the -p option.
The error message clearly indicates that some other process is using port 8983.
U need to find which process and try killing it
first run
$ lsof -i :8983
This will list applications running on port 8983. Lets say the pid of the process is 1814
run
$ sudo kill 1814
if you run into Error CREATEing SolrCore, it is mostly because of the permission issues caused by root installation
first cleanup the broken core:
bin/solr delete -c mycore
and recreate core as the solr user
su -u solr -c "/opt/solr/bin/solr create_core -c mycore"
I have configure and installed couchdb 1.6.1 on ubuntu 10.04. While configuring and installing it said successfully done. But when I start couchdb it gives me error.
When start first..
Apache CouchDB 1.6.1 (LogLevel=info) is starting.
Apache CouchDB has started. Time to relax.
**[info] [<0.32.0>] Apache CouchDB has started on http://127.0.0.1:5984/**
When starting again
Apache CouchDB 1.6.1 (LogLevel=info) is starting.
**Failure to start Mochiweb: eaddrinuse**
[error] [<0.127.0>] {error_report,<0.31.0>,
{<0.127.0>,crash_report,[[{initial_call,
{mochiweb_socket_server,init,['Argument__1']}},
{pid,<0.127.0>},
{registered_name,[]},
{error_info,
{exit,eaddrinuse,
[{gen_server,init_it,6},
{proc_lib,init_p_do_apply,3}]}},
{ancestors,
[couch_secondary_services,couch_server_sup,
<0.32.0>]},
{messages,[]},
{links,[<0.95.0>]},
{dictionary,[]},
{trap_exit,true},
{status,running},
{heap_size,987},
{stack_size,24},
{reductions,467}],
[]]}}
{"init terminating in do_boot",{{badmatch,{error,{bad_return,{{couch_app,start,[normal,["/usr/local/etc/couchdb/default.ini","/usr/local/etc/couchdb/local.ini"]]},{'EXIT',{{badmatch,{error,shutdown}},[{couch_server_sup,start_server,1},{application_master,start_it_old,4}]}}}}}},[{couch,start,0},{init,start_it,1},{init,start_em,1}]}}
Crash dump was written to: erl_crash.dump
init terminating in do_boot ()
in local.ini I changed
Port to 5983 and also ip to 0.0.0.0 from 127.0.0.1
Nothing helped
When i run sudo netstat -tulpn
I get following output
tcp 0 0 127.0.0.1:5984 0.0.0.0:* LISTEN 21688/beam.smp
couchdb -s says Apache CouchDB is not running.
Thanks in advance
If you came here because you recently upgrade you CouchDB 2.0, make sure you updated your local.ini config file. The section for the web server configuration has changed (the name changed from something like httpd to chttpd). Because of that the port directive wasn't being picked up and it was defaulting to 80 which was the same as the web server.
Based on the error message entries provided, CouchDB is already up & running on your machine/ server with port 5984
**Failure to start Mochiweb: eaddrinuse**
That's why When you run sudo netstat -tulpn command on Linux based machine, you are getting the following output :
tcp 0 0 127.0.0.1:5984 0.0.0.0:* LISTEN 21688/beam.smp
Solutions :
couchdb is not a service script in the way you're trying to use it. It is just trying to start up again and failing because one is already running (erlang beam.smp process is still running).
Check & kill all CouchDB processes using following commands :
/bin/ps aux | grep couchdb | grep -v grep | awk '{print $2}' | xargs killl
Start CouchDB again using following command using root linux user :
service couchdb start
Note :
When you enter couchdb -s command, You are getting the message like Apache CouchDB is not running.
When you enter couchdb -d command, You are getting the message like Apache CouchDB is not running.
Reason for above outputs, You are executing above mentioned commands as non privileged linux users accounts.
Try to execute above mentioned commands as root Or couchDB running linux users accounts.
Even i faced same problem. I just did..
sudo apt-get update
sudo apt-get install couchdb
Note:i just re-installed couchdb now it's working fine. before re-install i did below configuration.
Install ICU and use locate to find the icu-config command:
locate icu-config
sudo apt-get install libicu-dev
for more details refer below link
https://wiki.apache.org/couchdb/Error_messages
I face the same problem...
Luckily there's a fix in the Couchdb Error messages documentation.
https://wiki.apache.org/couchdb/Error_messages
Problem
$ couchdb
Apache CouchDB 0.9.0a747640 (LogLevel=info) is starting.
Failure to start Mochiweb: eaddrinuse
{"init terminating in do_boot",{{badmatch,{error,shutdown}},[{couch_server_sup,start_server,1},{erl_eval,do_apply,5},{erl_eval,exprs,5},{init,start_it,1},{init,start_em,1}]}}
Solution
Edit your /etc/couchdb/couch.ini file and change the Port setting to an available port.
But mine didn't have couch.ini but had default.ini.
I changed that to another port that i guessed should be free and it worked
I have encountered this error in starting couchdb on ubuntu 16.04
The reason being erlang running on the port 5984, you would be something like below when running the command "netstat -tulpn"
0 0 127.0.0.1:5984 0.0.0.0:* LISTEN 13967/beam.smp
open the file /etc/couchdb/default.ini in super user mode and change the httpd port to some other port which is available and you would be able to start couchdb without any fail.