I am using log4j , so have different formats of logs. I am able to send most of the logs using the below multiline format from fluentd to splunk, but few of them behave differently(The logs with different date format).
<source>
#type tail
path /tmp/LOG_SPLUNK.*
pos_file /tmp/my-splunk.pos
path_key log_type
read_from_head true
tag "splunk.#log.mylogs"
format multiline
format_firstline /^\[/
format1 /\[(?<timestamp>[^ ]* [^ ]*)\] (?<level>[^ ]*) (?<message>.*)/
time_type string
time_key timestamp
time_format %Y-%m-%d %H:%M:%S,%N
keep_time_key true
</source>
Below are logs formats:
[2022-04-13 06:27:08,340] INFO Loading plugin from: /my/path (org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader)
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:434)
at java.util.Properties.load0(Properties.java:353)
at java.util.Properties.load(Properties.java:341)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.versionFor(DelegatingClassLoader.java:380)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.versionFor(DelegatingClassLoader.java:385)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.getPluginDesc(DelegatingClassLoader.java:355)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.scanPluginPath(DelegatingClassLoader.java:328)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.scanUrlsAndAddPlugins(DelegatingClassLoader.java:261)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.registerPlugin(DelegatingClassLoader.java:253)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.initPluginLoader(DelegatingClassLoader.java:222)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.initLoaders(DelegatingClassLoader.java:199)
at org.apache.kafka.connect.runtime.isolation.Plugins.<init>(Plugins.java:60)
at org.apache.kafka.connect.cli.ConnectDistributed.startConnect(ConnectDistributed.java:91)
at org.apache.kafka.connect.cli.ConnectDistributed.main(ConnectDistributed.java:78)
[2022-04-13 06:27:09,520] INFO Registered loader: PluginClassLoader{pluginLocation=file:/my/path/} (org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader)
Apr 13, 2022 6:27:17 AM org.glassfish.jersey.internal.inject.Providers checkProviderRuntime
WARNING: A provider org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource registered in SERVER runtime does not implement any provider interfaces applicable in the SERVER runtime. Due to constraint configuration problems the provider org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource will be ignored.
I am able to send all the above formats to splunk, but some behave differently. Is there any format using which i will be able to handle all. If i got a pattern not match error i could have included a format, but I don't
Try this.
[(?[^ ]* [^ ])] (?[^ ]) (?[\W\w]+)
.* stops at a new line . [\W\w]+ will capture your whole stack trace in the message field.
Related
We are using Fluentbit as as Sidecar container in our ECS fargate Cluster which is running a dotnet application, initially we faced the issue of fluentbit sending the logs in multiline and we solved it using Fluentbit Multilne feature. Now the logs are being sent to Sumologic in Multiple however it is being sent as Json format whereas we just want fluentbit send only the raw log
Logs are currently
{
date:1675120653.269619,
container_id:"xvgbertytyuuyuyu",
container_name:"XXXXXXXXXX",
source:"stdout",
log:"2023-01-30 23:17:33.269Z DEBUG [.NET ThreadPool Worker] Connection.ManagedDbConnection - ComponentInstanceEntityAsync - Executing stored proc: dbo.prcGetComponentInstance"
}
We want only the line
2023-01-30 23:17:33.269Z DEBUG [.NET ThreadPool Worker] Connection.ManagedDbConnection - ComponentInstanceEntityAsync - Executing stored proc: dbo.prcGetComponentInstance
You need to modify Fluent Bit configuration to have the following filters and output configuration:
fluent.conf:
## prepare headers for Sumo Logic
[FILTER]
Name record_modifier
Match *
Record headers.content-type text/plain
## Set headers as headers attribute
[FILTER]
Name nest
Match *
Operation nest
Wildcard headers.*
Nest_under headers
Remove_prefix headers.
[OUTPUT]
Name http
...
# use log key as body
body_key $log
# use headers key as headers
headers_key $headers
That way, you are going to craft HTTP request manually. This is going to send request per log, which is not necessary a good idea. In order to mitigate that you can add the following parser and use it (flush_timeout may need an adjustment):
parsers.conf
# merge everything as one big log
[MULTILINE_PARSER]
name multiline-all
type regex
flush_timeout 500
#
# Regex rules for multiline parsing
# ---------------------------------
#
# configuration hints:
#
# - first state always has the name: start_state
# - every field in the rule must be inside double quotes
#
# rules | state name | regex pattern | next state
# ------|---------------|--------------------------------------------
rule "start_state" ".*" "cont"
rule "cont" ".*" "cont"
fluent.conf:
[INPUT]
name tail
...
multiline.parser multiline-all
I'm new to fluentd.
I have a log that I want to push to AWS with fluentd but I can't figure out what the regexp should be.
All the log lines, except the multilines, start with a UUID.
Here's a sample log:
6b0815f2-8ff1-4181-a4e6-058148288281 2020-11-03 13:00:05.976366 [DEBUG] switch_core_state_machine.c:611 (some_other_data) State Change CS_REPORTING -> CS_DESTROY
And, I'm trying to get UUID, DateTime, and Message.
With this regex:
/^(?<UUID>[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}) (?<time>.*) (?<message>[^ ]*)/gm
I'm getting the last word CS_DESTROY.
I tried fluentular and still got:
text:
f6a6e1ae-e52e-4aba-a8a5-4e3cc7f40914 2020-11-03 14:32:34.975779 [CRIT] mod_dptools.c:1866 audio3: https://mydomain.s3-eu-west-1.amazonaws.com/media/576d06e5-04fc-11eb-a52c-020fd8c14d18/5f9ddf2d5df0f698094395.mpg
regexp:
^(?<UUID>[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}) (?<time>.*) (?<message>[^ ]*)$
and got:
time 2020/11/03 14:32:34 +0000
UUID f6a6e1ae-e52e-4aba-a8a5-4e3cc7f40914
message https://mydomain.s3-eu-west-1.amazonaws.com/media/576d06e5-04fc-11eb-a52c-020fd8c14d18/5f9ddf2d5df0f698094395.mpg
It's missing what's between the datetime and "https".
Try:
^(?<UUID>[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}) (?<time>[^\[]*) (?<message>\[.*)$
Live at rubular: https://rubular.com/r/JQQXs5VTkr2IxM
Here's the output for both logs:
Match 1
UUID 6b0815f2-8ff1-4181-a4e6-058148288281
time 2020-11-03 13:00:05.976366
message [DEBUG] switch_core_state_machine.c:611 (some_other_data) State Change CS_REPORTING -> CS_DESTROY
Match 2
UUID f6a6e1ae-e52e-4aba-a8a5-4e3cc7f40914
time 2020-11-03 14:32:34.975779
message [CRIT] mod_dptools.c:1866 audio3: https://mydomain.s3-eu-west-1.amazonaws.com/media/576d06e5-04fc-11eb-a52c-020fd8c14d18/5f9ddf2d5df0f698094395.mpg
I am trying to parse the logs from kubernetes like this for example
2018-08-14 13:21:20.013 [INFO][67] health.go 150: Overall health summary=&health.HealthReport{Live:true, Ready:true}
And this is the configuration
<source>
#id calico-node.log
#type tail
format /^(?<time>[^ ]* [^ ,]*)[^\[]*\[[^\]]*\]\[(?<severity>[^ \]]*) *\] (?<message>.*)$/
time_format %Y-%m-%d %H:%M:%S
path /var/log/containers/calico-node**.log
pos_file /var/log/es-calico.pos
tag calico-node
</source>
According to regex101.com, this pattern should match this string. However, I get an error from fluentd while trying to parse this
2018-08-14 13:21:20 +0000 [warn]: [calico-node.log] "{\"log\":\"2018-08-14 13:21:20.013 [INFO][67] health.go 150: Overall health summary=\\u0026health.HealthReport{Live:true, Ready:true}\\n\",\"stream\":\"stdout\",\"time\":\"2018-08-14T13:21:20.013908223Z\"}" error="invalid time format: value = {\"log\":\"2018-08-14 13:21:20.013, error_class = ArgumentError, error = string doesn't match"```
What could be wrong? I have had similar errors with the built-in parser for apache logs as well?
From what I can see, you are missing something in the fluentd config.
Your time_format %Y-%m-%d %H:%M:%S will not work with the timestamp 2018-08-14 13:21:20.013, as it's missing .%3N.
It should be as follows:
time_format %Y-%m-%d %H:%M:%S.%3N or time_format %Y-%m-%d %H:%M:%S.%L
Just faced a similar issue.
I think the #Crou's answer is correct but maybe try %N instead.
according to the document, fluentd parser does not support %3N, %6N, %9N, and %L
https://docs.fluentd.org/configuration/parse-section
It appears that log severity is not being passed to Google Cloud Logging platform via fluentd agent, to reproduce you can try:
Bash:
logger -p user.crit "My log"
or PHP:
php -r "syslog(LOG_CRIT,'My log');"
or Python:
import syslog
syslog.syslog(syslog.LOG_ERR, 'My log')
things are getting passed to Google Logs Viewer as below:
but severity is not being sent across, any ideas why would that be?
OK, managed to find the solution, here you go:
update your syslog output format under /etc/rsyslog.conf to the following:
$template googlelogger,"%syslogseverity-text% %timegenerated% %HOSTNAME% %syslogtag% %msg%\n"
$ActionFileDefaultTemplate googlelogger
then update /etc/google-fluentd/config.d/syslog.conf template format:
format /^(?<severity>[a-zA-Z]*) (?<time>[^ ]*\s*[^ ]* [^ ]*) (?<host>[^ ]*) (?<service>[a-zA-Z0-9_\/\.\-]*): *(?<message>.*)$/
time_format %b %d %H:%M:%S
make sure to restart both rsyslog and google-fluentd after that severity will be sent to Google Cloud Logging
We have recently setup AWS logs agent on one of our test servers. Our log files usually contain multi-line events. e.g one of our log event is:
[10-Jun-2016 07:30:16 UTC] SQS Post Response: Array
(
[Status] => 200
[ResponseBody] => <?xml version="1.0"?><SendMessageResponse xmlns="http://queue.amazonaws.com/doc/2009-02-01/"><SendMessageResult><MessageId>053c7sdf5-1e23-wa9d-99d8-2a0cf9eewe7a</MessageId><MD5OfMessageBody>8e542d2c2a1325a85eeb9sdfwersd58f</MD5OfMessageBody></SendMessageResult><ResponseMetadata><RequestId>4esdfr30-c39b-526b-bds2-14e4gju18af</RequestId></ResponseMetadata></SendMessageResponse>
)
The log agent reference documentation says to use 'multi_line_start_pattern' option for such logs. Our AWS Log agent config is as follows:
[httpd_info.log]
file = /var/log/httpd/info.log*
log_stream_name = info.log
initial_position = start_of_file
log_group_name = test.server.name
multi_line_start_pattern = '(\[)+\d{2}-[a-zA-Z]{3}+-\d{4}'
However, the logs agent reporting breaks on aforementioned and similar events. The way it is being reported to CloudWatch Logs is as follows:
Event 1:
[10-Jun-2016 11:21:26 UTC] SQS Post Response: Array
Event 2:
( [Status] => 200 [ResponseBody] => <?xml version="1.0"?><SendMessageResponse xmlns="http://queue.amazonaws.com/doc/2009-02-01/"><SendMessageResult><MessageId>053c7sdf5-1e23-wa9d-99d8-2a0cf9eewe7a</MessageId><MD5OfMessageBody>8e542d2c2a1325a85eeb9sdfwersd58f</MD5OfMessageBody></SendMessageResult><ResponseMetadata><RequestId>4esdfr30-c39b-526b-bds2-14e4gju18af</RequestId></ResponseMetadata></SendMessageResponse>
Event 3:
)
Despite of the fact that its only a single event. Any clue whats going on here?
I think all you need to add is the following to your awslogs.conf
datetime_format = %d-%b-%Y %H:%M:%S UTC
time_zone = UTC
multi_line_start_pattern = {datetime_format}
http://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/AgentReference.html
multi_line_start_pattern
Specifies the pattern for identifying the start of a log message. A log message is made of a line that matches the pattern and any following lines that don't match the pattern. The valid values are regular expression or {datetime_format}. When using {datetime_format}, the datetime_format option should be specified. The default value is ‘^[^\s]' so any line that begins with non-whitespace character closes the previous log message and starts a new log message.
If that datetime format didn't work, you would need to update your regex to actually match your specific datetime. I don't think the one you have listed above actually works for your given format.
You could try this for instance:
[\d{2}-[\w]{3}-\d{4}\s{1}\d{2}:\d{2}:\d{2}\s{1}\w+]
does match
[10-Jun-2016 11:21:26 UTC]
See here: http://www.regexpal.com/?fam=96811
Once completed, issue a restart of the service and check to see if its parsing correctly.
$ sudo service awslogs restart