I upload some logs into elastic via filebeat, but there is some other information added to my original logs like the host name ,os kernel and other information about host..., and the main message become unformatted, i want to delete all the field that are unnecessary and only keep my original message in the initial form.
I have tried to delete add_host_metadata from filebeat.yml but the problem still persist.
I'm working with elk on windows.
You could use the include_fields processor enter link description here or what you could do is use the drop_fields for the fields you don’t need. Filebeat will sometimes add in fields such as host, or log, which can be dropped. There are some
That can’t be dropped though.
Related
I am using filebeat, elasticsearch, kibana to ship and view logs on ec2.
all the three services are working fine and I am able to see the logs on kibana.
But when i try to search in these logs, the result is not displayed.
As we can see in the previous screenshot we have "WARNING" keyword but when I am searching it, it is not displayed.
Also the full json look like this.
Try searching for message: *exists*. Without the wildcards the string needs to do an exact match.
What makes Kibana to not show docker container logs in APM "Transactions" page under "Logs" tab.
I verified the logs are successfully being generated with the "trace.id" associated for proper linking.
I have the exact same environment and configs (7.16.2) up via docker-compose and it works perfectly.
Could not figure out why this feature works locally but does not show in Elastic Cloud deploy.
UPDATE with Solution:
I just solved the problem.
It's related to the Filebeat version.
From 7.16.0 and ON, the transaction/logs linking stops working.
Reverted Filebeat back to version 7.15.2 and it started working again.
If you are not using file beats, for example - We rolled our own logging implementation to send logs from a queue in batches using the Bulk API.
We have our own "ElasticLog" class and then use Attributes to match the logs-* Schema for the Log Stream.
In particular we had to make sure that trace.id was the same as the the actual Traces, trace.id property. Then the logs started to show up here (It does take a few minutes sometimes)
Some more info on how to get the ID's
We use OpenTelemetry exporter for Traces and ILoggerProvider for Logs. The fire off batches independently of each other.
We populate the Trace Id's at the time of instantiation of the class as a default value. This way you in the context of the Activity. Also helps set the timestamp exactly when the log was created.
This LogEntry then gets passed into the ElasticLogger processor and mapped as displayed above to the ElasticLog entry with the Attributes needed for ES
I have a graylog instance that's running a UDP-Syslog-Input on Port 1514.
It's working wonderfully well for all the system logs of the linux servers.
When I try to ingest payara logs though [1], the "source" of the message is set to "localhost" in graylog, while it's normally the hostname of the sending server.
This is suboptimal, because in the best case I want the application logs with correct source in graylog also.
I googled around and found:
https://github.com/payara/Payara/blob/payara-server-5.2021.5/nucleus/core/logging/src/main/java/com/sun/enterprise/server/logging/SyslogHandler.java#L122
It seems like the syslog "source" is hard-coded into payara (localhost).
Is there a way to accomplish sending payara-logs with the correct "source" set?
I have nothing to do with the application server itself, I just want to receive the logs with the correct source (the hostname of the sending server).
example log entry in /var/log/syslog for payara
Mar 10 10:00:20 localhost [ INFO glassfish ] Bootstrapping Monitoring Console Runtime
I suspect I want the "localhost" in above example set to fqdn of the host.
Any ideas?
Best regards
[1]
logging.properties:com.sun.enterprise.server.logging.SyslogHandler.useSystemLogging=true
Try enabling "store full message" in the syslog input settings.
That will add the full_message field to your log messages and will contain the header, in addition to what you see in the message field. Then you can see if the source IP is in the UDP packet. If so, collect those messages via a raw/plaintext UDP input and the source should show correctly.
You may have to parse the rest of the message via an extractor or pipeline rule, but at least you'll have the source....
Well,
this might not exactly be a good solution but I tweaked the rsyslog template for graylog.
I deploy the rsyslog-config via Puppet, so I can generate "$YOURHOSTNAME-PAYARA" dynamically using the facts.
This way, I at least have the correct source set.
$template GRAYLOGRFC5424,"<%PRI%>%PROTOCOL-VERSION% %TIMESTAMP:::date-rfc3339% YOURHOSTNAME-PAYARA %APP-NAME% %PROCID% %MSGID% %STRUCTURED-DATA% %msg%\n"
if $msg contains 'glassfish' then {
*.* #loghost.domain:1514;GRAYLOGRFC5424
& ~
} else {
*.* #loghost.domain:1514;RSYSLOG_SyslogProtocol23Format
}
The other thing we did is actually activating application logging through log4j and it's syslog appender:
<Syslog name="syslog_app" appName="DEMO" host="loghost" port="1514" protocol="UDP" format="RFC5424" facility="LOCAL0" enterpriseId="">
<LoggerFields>
<KeyValuePair key="thread" value="%t"/>
<KeyValuePair key="priority" value="%p"/>
<KeyValuePair key="category" value="%c"/>
<KeyValuePair key="exception" value="%ex"/>
</LoggerFields>
</Syslog>
This way, we can ingest the glassfish server logs and the independent application logs into graylog.
The "LoggerFields" in log4j.xml appear to be key-value pairs for the "StructuredDataElements" according to RFC5424.
https://logging.apache.org/log4j/2.x/manual/appenders.html
https://datatracker.ietf.org/doc/html/rfc5424
That's the problem with UDP Syslog. The sender gets to set the source in the header. There is no "best answer" to this question. When the information isn't present, it's hard for Graylog to pass it along.
It sounds like you may have found an answer that works for you. Go with it. Using log4j solves two problems and lets you define the source yourself.
For those who face a similar issue, a simpler way to solve the source problem might be to use a static field. If you send the payara syslog messages to their own input, you can create a static field that could substitute for the source to identify traffic from that source. Call it "app_name" or "app_source" or something and use that field for whatever sorting you need to do.
Alternatively, if you have just one source for application messages, you could use a pipeline to set the value of the source field to the IP or FQDN of the payara server. Then it displays like all the rest.
I have managed to process log files using the ELK kit and I can now see my logs on Kibana.
I have scoured the internet and can't seem to find a way to remove all the old logs, viewable in Kibana, from months ago. (Well an explaination that I understand). I just want to clear my Kibana and start a fresh by loading new logs and them being the only ones displayed. Does anyone know how I would do that?
Note: Even if I remove all the Index Patterns (in Management section), the processed logs are still there.
Context: I have been looking at using ELK to analyse testing logs in my work. For that reason, I am using ElasticSearch, Kibana and Logstatsh v5.4, and I am unable to download a newer version due to company restrictions.
Any help would be much appreciated!
Kibana screenshot displaying logs
Update:
I've typed "GET /_cat/indices/*?v&s=index" into the Dev Tools>Console and got a list of indices.
I initially used the "DELETE" function, and it didn't appear to be working. However, after restarting everything, it worked the seond time and I was able to remove all the existing indices which subsiquently removed all logs being displayed in Kibana.
SUCCESS!
Kibana is just the visualization part of the elastic stack, your data is stored in elasticsearch, to get rid of it you need to delete your index.
The 5.4 version is very old and already passed the EOL date, it does not have any UI to delete the index, you will need to use the elasticsearch REST API to delete it.
You can do it from kibana, just click in Dev Tools, first you will need to list your index using the cat indices endpoint.
GET "/_cat/indices?v&s=index&pretty"
After that you will need to use the delete api endpoint to delete your index.
DELETE /name-of-your-index
On the newer versions you can do it using the Index Management UI, you should try to talk with your company to get the new version.
Hi I am new to Kibana (ELK stack).I have created an error dashboard in Kibana but If I need more information about errors how can I get that.Like If I want to know because of what error has been created.How can I get it.
Any initiatives will be appreciated.
For any information that you want to display in Kibana you need to have a source from where that particular information is available. In this case if we assume that the logs being parsed by Logstash has the information on the errors, then you can parse/filter the logs via the pipeline of Logstash to extract the information and store it in a field.
Now the document which are saved in the ES contain the information, this can be used to perform various aggregations or apply different mathematical functions and then eventually visualize it.