Showing currently applied configuration values
In v2.0+ of Riak there is a new command option: riak config effective
Which I read as it would tell you the current running values of riak.
At any time, you can get a snapshot of currently applied
configurations through the command line. For a listing of all of the
configs currently applied in the node
Config changes applied only on start of each node?
In multiple locations in Riak documentation there is reference like:
Remember that you must stop and then re-start each node when you
change storage backends or modify any other configuration
Problem:
However when I made a change to a setting (I've tested this in both riak.conf and advanced.conf), I see the newest value when running: riak config effective
ie:
Start node: riak start
View current setting for log level: riak config effective | grep log.console.level
log.console.level = info
Change the level to debug (something that will output a lot to console.log)
Re-run: riak config effective | grep log.console.level, we get:
log.console.level = debug
Checking the console log file for debug: cat /var/log/riak/console.log | grep debug give no results (indicating the config change has not been applied)
So the question is, how can I retrieve and verify what config setting each Riak node is running under?
When Riak starts, it creates two files: 'app..config' and 'vm..config'. The default location is in a 'generated.configs' directory under the platform data directory (usually /var/lib/riak).
These files will contain the settings that were in place when Riak was started. The command riak config effective processes the current riak.conf and advanced.config files.
Related
I'm using hydra to log hyperparameters of experiments.
#hydra.main(config_name="config", config_path="../conf")
def evaluate_experiment(cfg: DictConfig) -> None:
print(OmegaConf.to_yaml(cfg))
...
Sometimes I want to do a dry run to check something. For this I don't need any saved parameters, so I'm wondering how I can disable the savings to the filesystem completely in this case?
The answer from Omry Yadan works well if you want to solve this using the CLI. However, you can also add these flags to your config file such that you don't have to type them every time you run your script. If you want to go this route, make sure you add the following items in your root config file:
defaults:
- _self_
- override hydra/hydra_logging: disabled
- override hydra/job_logging: disabled
hydra:
output_subdir: null
run:
dir: .
There is an enhancement request aimed at Hydra 1.1 to support disabling working directory management.
Working directory management is doing many things:
Creating a working directory for the run
Changing the working directory to the created dir.
There are other related features:
Saving log files
Saving files like config.yaml and hydra.yaml into .hydra in the working directory.
Different features has different ways to disable them:
To prevent the creation of a working directory, you can override hydra.run.dir to ..
To prevent saving the files into .hydra, override hydra.output_subdir to null.
To prevent the creation of logging files, you can disable logging output of hydra/hydra_logging and hydra/job_logging, see this.
A complete example might look like:
$ python foo.py hydra.run.dir=. hydra.output_subdir=null hydra/job_logging=disabled hydra/hydra_logging=disabled
Note that as always you can also override those config values through your config file.
We have tried to migrate some SQL versions in a single database and it went well. When to tried to implement the migrations for multiple databases at the same time by passing multiple config files is failing.
The issue is it takes only the last config file and the migration is performed only for the database mentioned in the last config file, when passed the multiple config files in "-configFiles" parameter.
Below is the screenshot of the same, it took only flywayconfdb.conf file and left other files.
[oracle#localhost flyway-5.1.4]$ ./flyway -configFiles=/home/oracle/flyway/flyway-5.1.4/conf/flyway.conf,/home/oracle/flyway/flyway-5.1.4/conf/flywayjiradb.conf,/home/oracle/flyway/flyway-5.1.4/conf/flywayconfdb.conf info
Flyway Community Edition 5.1.4 by Boxfuse
Database: jdbc:oracle:thin:#//XXXXXXXXX:1521/confdb (Oracle 12.2)
Schema version: << Empty Schema >>
+----------+---------+-------------+------+--------------+-------+
| Category | Version | Description | Type | Installed On | State |
+----------+---------+-------------+------+--------------+-------+
| No migrations found |
+----------+---------+-------------+------+--------------+-------+
Please help us in resolving the same.
Flyway merges the config files. It doesn't do a separate migration for each one.
For each config file, Flyway adds the content to a Properties map. Properties has only one value per key, so if the same key appears in a second config file it would overwrite the previous value. This is why it seems like just the settings from the last config file are used.
It allows you to define some common settings somewhere, for example in ~/flyway.conf, which could be merged with some more specific settings, e.g. in individual projects.
But it doesn't allow you to migrate multiple databases in a single run. You need to run Flyway once per database:
./flyway -configFiles=/home/oracle/flyway/flyway-5.1.4/conf/flywayjiradb.conf info
./flyway -configFiles=/home/oracle/flyway/flyway-5.1.4/conf/flywayconfdb.conf info
The documentation describes the Overriding Order as:
Command-line arguments
Environment variables
Custom config files
<current-dir>/flyway.conf
<user-home>/flyway.conf
<install-dir>/conf/flyway.conf
Flyway command-line defaults
With settings defined higher up the list having greater precedence.
The documentation gives the following example:
The means that if for example flyway.url is both present in a config
file and passed as -url= from the command-line, the command-line
argument will take precedence and be used.
The Custom config files (-configFiles) lines could be expanded as:
Command-line arguments
Environment variables
Custom config file n
...
Custom config file 2
Custom config file 1
<current-dir>/flyway.conf
<user-home>/flyway.conf
<install-dir>/conf/flyway.conf
Flyway command-line defaults
And a corresponding example could be:
The means that if for example flyway.url is both present in custom config file 1 and custom config file 2, the custom config file 2 settings will take precedence and be used.
Similarly, if the flyway.url was also in custom config file n that would override that setting from custom config file 2.
I am writing a build process for a WordPress installation using Ansible. It doesn't have a application-level build system at the moment, and I've chosen Ansible so that it can cleanly integrate with server build scripts, so I can bring up a working server at the touch of a button.
Most of my WordPress plugins are being installed with the unarchive feature, pointing to versioned plugin builds on the official wordpress.org installation server. I've encountered a problem with just one of these, which is that it is always being marked as "changed" even though the files are exactly the same.
Having examined the state of ls -Rl before and after, I noticed that this plugin (WordPress HTTPS) is the only one to use internal sub-directories, and upon each decompression, the modification time of folders is getting bumped.
It may be useful to know that this is a project build script, with a connection of local. I guess therefore that means that SSH is not being used.
Here is a snippet of my playbook:
- name: Install the W3 Total Cache plugin
unarchive: >
src=https://downloads.wordpress.org/plugin/w3-total-cache.0.9.4.1.zip
dest=wp-content/plugins
copy=no
- name: Install the WP DB Manager plugin
unarchive: >
src=https://downloads.wordpress.org/plugin/wp-dbmanager.2.78.1.zip
dest=wp-content/plugins
copy=no
# #todo Since this has internal sub-folders, need to work out
# how to preserve timestamps of the original folders rather than
# re-writing them, which forces Ansible to record a change of
# server state.
- name: Install the WordPress HTTPS plugin
unarchive: >
src=https://downloads.wordpress.org/plugin/wordpress-https.3.3.6.zip
dest=wp-content/plugins
copy=no
One hacky way of fixing this is to use ls -R before and after, using options to include file sizes but not timestamps, and then md5sum that output. I could then mark it as changed if there is a change in checksum. It'd work but it's not very elegant (and I'd want to do that for all plugins, for consistency).
Another approach is to abandon the task if a plugin file already exists, but that would cause problems when I bump the plugin version number to the latest copy.
Thus, ideally, I am looking for a switch to present to unarchive to say that I want the folder modification times from the zip file, not from playbook runtime. Is it possible?
Update: a commenter asked if the file contents could have changed in any way. To determine whether they have, I wrote this script, which creates a checksum for (1) all file contents and (2) all file/directory timestamps:
#!/bin/bash
# Save pwd and then change dir to root location
STARTDIR=`pwd`
cd `dirname $0`/../..
# Clear collation file
echo > /tmp/wp-checksum
# List all files recursively
find wp-content/plugins/wordpress-https/ -type f | while read file
do
#echo $file
cat $file >> /tmp/wp-checksum
done
# Get checksum of file contents
sha1sum /tmp/wp-checksum
# Get checksum of file sizes
ls -Rl wp-content/plugins/wordpress-https/ | sha1sum
# Go back to original dir
cd $STARTDIR
I ran this as part of my playbook (running it in isolation using tags) and received this:
PLAY [Set this playbook to run locally] ****************************************
TASK [setup] *******************************************************************
ok: [localhost]
TASK [jonblog : Run checksum command] ******************************************
changed: [localhost]
TASK [jonblog : debug] *********************************************************
ok: [localhost] => {
"checksum_before.stdout_lines": [
"374fadc4df1578f78fd60b1be6758477c2c533fa /tmp/wp-checksum",
"10d66f7bdbbdd3af531d1b11a3db3059a5868838 -"
]
}
TASK [jonblog : Install the WordPress HTTPS plugin] ***************
changed: [localhost]
TASK [jonblog : Run checksum command] ******************************************
changed: [localhost]
TASK [jonblog : debug] *********************************************************
ok: [localhost] => {
"checksum_after.stdout_lines": [
"374fadc4df1578f78fd60b1be6758477c2c533fa /tmp/wp-checksum",
"719c9da94b525e723b1abe188ee9f5bbaf121f3f -"
]
}
PLAY RECAP *********************************************************************
localhost : ok=6 changed=3 unreachable=0 failed=0
The debug lines reflect the checksum hash of the contents of the files (this is identical) and then the checksum hash of ls -Rl of the file structure (this has changed). This is in keeping with my prior manual finding that directory checksums are changing.
So, what can I do next to track down why folder modification times are incorrectly flagging this operation as changed?
Rather than overwriting all files each time and find a way to keep the same modification datetime, you may want to use the creates option of the unarchive module.
As you maybe already know, this tells Ansible that a specific file/folder will be created as a result of the task. Thus, next time the task will not be run again if that file/folder already exists.
See http://docs.ansible.com/ansible/unarchive_module.html#options
My solution is to modify the checksum script and to make that a permanent feature of the Ansible process. It feels a bit hacky to do my own checksumming, when Ansible should do it for me, but it works.
New answers that explain that I am doing something wrong, or that a new version of Ansible fixes the problem, would be most welcome.
If I get a moment, I will raise this as a possible bug with the Ansible team. However I do sometimes wonder about the effort/reward ratio when raising bugs on a busy tracker - I already have one item outstanding, it has been waiting a while, and I've chosen to work around that too.
Update (18 months later)
This Ansible build system never made it into live. It felt like I was always working around something. Recently, when I decided I needed to move my blog to another server, I finally Dockerised it. This took several weeks (since there is a surprising amount of things to think about in a real WordPress installation) but in general I found the process much nicer than using orchestration tools.
I'm trying to create a new collection with solr-cloud setup, fails with the following:
ERROR: Error loading config name for collection test
I tried deleting the collection:
sudo /opt/solr/bin/solr delete -c test
but with the same results
My setup: solr-cloid with external zookeeper and 5 solr nodes
How do I purge it or reload it again ?
thanks
Solr is not able to find configuration files in zookeeper. Solrcloud try to recreate the core from zookeeper configuration file.
Looks like you have deleted zookeeper configuration node for collection test.
Two steps to completely purge collection test:
Stop solr and Delete folder "test" if exists from Solr home folder.(default: /var/lib/solr)
Navigate to zookeeper node and edit clusterstate.json . Remove entries of collection test. I wanted to start fresh so reset clusterstate.json file to default i.e {}
you should disable autoAddReplicas property of solr before shutting down any solrnode.
Check if the config folder exists in zookeeper. If this is the case, try to link the collection with the configname using the commmand:
zkcli.sh -cmd linkconfig -collection collectionname -confname configname
New to salt,and i add first server(wx-1),it works ,but when i add a differnt server, test.ping is ok,but when execute salt 'qing' state.highstate, it fails,the error info is:
No Top file or external nodes data matches found
Here is my top.sls:
base:
'wx-1':
- bin.nginx
- git
- web
- mongo
- redis
'qing':
- bin.nginx
qing is a new server and it's config is different to wx-1,don't know if this is ok,thanks for your help:)
If you make changes to your sls files. Make sure that you restart the master in order for it to update. This solved my problem when receiving the same error...
You didn't give much information. But here are a few things to check:
test if salt qing state.sls bin.nginx works, if not continue reading
make sure file_roots:base in master config points to /srv/salt
use salt-master/minion --version to check salt versions, make sure they are the same. Because different versions might diff
Give further info if you tried all the above.