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Posted to notifications@couchdb.apache.org by GitBox <gi...@apache.org> on 2020/03/03 00:15:30 UTC
[GitHub] [couchdb] natcohen opened a new issue #2630: Unable to run Clouseau
after following the documentation
natcohen opened a new issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630
[NOTE]: # ( ^^ Provide a general summary of the issue in the title above. ^^ )
## Description
Unable to run Clouseau even after following the installation procedure.
[NOTE]: # ( Describe the problem you're encountering. )
[TIP]: # ( Do NOT give us access or passwords to your actual CouchDB! )
## Steps to Reproduce
After carefully following the procedure [here][1] I'm unable to get it working on CentOS 8. Here is what I have done:
- Installed Java 8 as described [here][2].
- Unzipped the [Clouseau release][3] in folder `/opt/clouseau` and added the `clouseau.ini`
`log4j.properties` files (as described in the procedure) in the same folder.
- Added the classpath:
```sh
export CLASSPATH=/opt/clouseau/*`
```
- Tried to run it with the following command:
```sh
java -server \
-Xmx2G \
-Dsun.net.inetaddr.ttl=30 \
-Dsun.net.inetaddr.negative.ttl=30 \
-Dlog4j.configuration=file:/opt/clouseau/log4j.properties \
-XX:OnOutOfMemoryError=\"kill -9 %p\" \
-XX:+UseConcMarkSweepGC \
-XX:+CMSParallelRemarkEnabled \
com.cloudant.clouseau.Main \
/opt/clouseau/clouseau.ini
```
But I'm getting the following error:
```sh
Unrecognized option: -9
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
```
In addition, I can see in the default.ini file of CouchDB some reference to dreyfus. Does it mean that I should add a configuration to CouchDB?
Also
```ini
cookie=monster
```
is described as "; set this to the same distributed Erlang cookie used by the CouchDB nodes" but I don't know where to find that.
[NOTE]: # ( Include commands to reproduce, if possible. curl is preferred. )
## Expected Behaviour
The Clouseau configuration should be easier to setup (probably by improving the documentation)
[NOTE]: # ( Tell us what you expected to happen. )
## Your Environment
[TIP]: # ( Include as many relevant details about your environment as possible. )
[TIP]: # ( You can paste the output of curl http://YOUR-COUCHDB:5984/ here. )
* CouchDB version used: 3.0
* Browser name and version: N/A
* Operating system and version: CentOS 8
## Additional Context
[TIP]: # ( Add any other context about the problem here. )
[1]: https://docs.couchdb.org/en/master/install/search.html#install-search
[2]: https://linuxize.com/post/install-java-on-centos-8/#installing-openjdk-8
[3]: https://github.com/cloudant-labs/clouseau/releases
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[GitHub] [couchdb] natcohen edited a comment on issue #2630: Unable to run
Clouseau after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen edited a comment on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594001594
It also works without escaping the scopes:
```
-XX:OnOutOfMemoryError="kill -9 %p" \
```
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[GitHub] [couchdb] natcohen commented on issue #2630: Unable to run Clouseau
after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen commented on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594086924
@kocolosk Thanks for your help!
Does it mean that escaping with backslashes depends on the server/OS? This could definitely be added to the documentation if we can determine which OS require escaping
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[GitHub] [couchdb] natcohen commented on issue #2630: Unable to run Clouseau
after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen commented on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594169855
I will close this since it's not a real but but more a documentation issue...
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[GitHub] [couchdb] natcohen commented on issue #2630: Unable to run Clouseau
after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen commented on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594140718
@kocolosk I am having some really hard time creating a systemd service in CentOS to be able to start Clouseau on server startup.
I have created the following start.sh script:
```sh
export CLASSPATH=/opt/clouseau/lib/*
/usr/bin/java -server -Xmx2G -Dsun.net.inetaddr.ttl=30 -Dsun.net.inetaddr.negative.ttl=30 -Dlog4j.configuration=file:/opt/clouseau/log4j.properties -XX:OnOutOfMemoryError="kill -9 %p" -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled com.cloudant.clouseau.Main /opt/clouseau/clouseau.ini
```
starting this script from the command line works but when invoking it in the service, it automatically stops it without notice:
```sh
[Unit]
Description=Clouseau
After=network.target
[Service]
Type=simple
User=root
WorkingDirectory=/opt/clouseau
ExecStart=/opt/clouseau/start.sh
Restart=on-abort
[Install]
WantedBy=multi-user.target
```
It's a bit out of scope but it's been few hours I'm trying to find a solution and I can't find any help...Also this thread can help others create a service in unix for Clouseau
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[GitHub] [couchdb] natcohen commented on issue #2630: Unable to run Clouseau
after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen commented on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-593999710
@kocolosk Great, without this line, it seems to work (I will do some tests).
BTW, should we remove this line from the documentation? Also should we explain where this setcookie value is taken from?
In addition, once I run clouseau, do I have to restart CouchDB? Do I have to do anything within CouchDB (from the fresh install)?
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[GitHub] [couchdb] natcohen removed a comment on issue #2630: Unable to run
Clouseau after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen removed a comment on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594140718
@kocolosk I am having some really hard time creating a systemd service in CentOS to be able to start Clouseau on server startup.
I have created the following start.sh script:
```sh
export CLASSPATH=/opt/clouseau/lib/*
/usr/bin/java -server -Xmx2G -Dsun.net.inetaddr.ttl=30 -Dsun.net.inetaddr.negative.ttl=30 -Dlog4j.configuration=file:/opt/clouseau/log4j.properties -XX:OnOutOfMemoryError="kill -9 %p" -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled com.cloudant.clouseau.Main /opt/clouseau/clouseau.ini
```
starting this script from the command line works but when invoking it in the service, it automatically stops it without notice:
```sh
[Unit]
Description=Clouseau
After=network.target
[Service]
Type=simple
User=root
WorkingDirectory=/opt/clouseau
ExecStart=/opt/clouseau/start.sh
Restart=on-abort
[Install]
WantedBy=multi-user.target
```
It's a bit out of scope but it's been few hours I'm trying to find a solution and I can't find any help...Also this thread can help others create a service in unix for Clouseau
----------------------------------------------------------------
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[GitHub] [couchdb] natcohen commented on issue #2630: Unable to run Clouseau
after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen commented on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594001594
It also works without the escaping the scopes:
```
-XX:OnOutOfMemoryError="kill -9 %p" \
```
----------------------------------------------------------------
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[GitHub] [couchdb] kocolosk commented on issue #2630: Unable to run Clouseau
after following the documentation
Posted by GitBox <gi...@apache.org>.
kocolosk commented on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594006362
You shouldn't need to restart CouchDB, any request that needs a Clouseau process will try to establish a connection to it if one does not already exist.
I do think we could improve the documentation based on your experience, especially the bit about the Erlang magic cookie. I'm not sure about removing the `kill -9` direction altogether; it has been our recommended practice to set that flag to help the system quickly recover from any condition that could cause the JVM memory to balloon.
It'd be nice if we could find a way to make that easier to invoke, e.g. by including a script that starts / stops the Clouseau service. But I'm not sure anyone is ready to pick that up. Will need to give it some thought.
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[GitHub] [couchdb] natcohen closed issue #2630: Unable to run Clouseau after
following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen closed issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630
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[GitHub] [couchdb] natcohen edited a comment on issue #2630: Unable to run
Clouseau after following the documentation
Posted by GitBox <gi...@apache.org>.
natcohen edited a comment on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-594169855
I will close this since it's not a real bug but more a documentation issue...
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[GitHub] [couchdb] kocolosk commented on issue #2630: Unable to run Clouseau
after following the documentation
Posted by GitBox <gi...@apache.org>.
kocolosk commented on issue #2630: Unable to run Clouseau after following the documentation
URL: https://github.com/apache/couchdb/issues/2630#issuecomment-593994933
Hi @natcohen, thanks for the report.
The distributed Erlang cookie can be set a few different ways. The `etc/vm.args` file has a line that starts with `-setcookie`; this is probably the one that's in effect. It defaults to the same `monster` value above.
The `-9` error looks like a problem with quoting in the shell. I'll confess that I tend to get that sort of thing working by trial and error 🙄 As a test you could remove the entire line:
> -XX:OnOutOfMemoryError=\"kill -9 %p\" \
and see if that gets you going.
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