Logstach automatic logs reader


(Amritesh Mishra) #1

How can we read automatic log because if the time differs with the machine timestamp it dosen't display with the filters.


(Magnus Bäck) #2

I don't understand what you mean. Perhaps an example would make it easier for everyone.


(Amritesh Mishra) #3

i have created a pattern to read logs .I am putting a log file in the location where that pattern is pointing to and if i will put another log in the same place with different name then it will take that log file or not.

Like it will keep on reading the log file and i will put the log file one by one in the folder it will read or not.


(Magnus Bäck) #4

Logstash will read all files that match the filename pattern you've specified in your file input plugin.


(Amritesh Mishra) #5

But it is not happening.


(Amritesh Mishra) #6

hi when i am stating my pipeline for picking the log file automatically it is not being done ,below is the pid given fir the config file. if we are running that config file should i have to give the full location while running.

root 28993 28461 7 14:44 pts/0 00:02:16 /buildserver/talend/java/jdk1.8.0_91/bin/java -Xms256m -Xmx1g -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+DisableExplicitGC -Djava.awt.headless=true -Dfile.encoding=UTF-8 -XX:+HeapDumpOnOutOfMemoryError -cp /usr/share/logstash/logstash-core/lib/jars/animal-sniffer-annotations-1.14.jar:/usr/share/logstash/logstash-core/lib/jars/commons-compiler-3.0.8.jar:/usr/share/logstash/logstash-core/lib/jars/error_prone_annotations-2.0.18.jar:/usr/share/logstash/logstash-core/lib/jars/google-java-format-1.5.jar:/usr/share/logstash/logstash-core/lib/jars/guava-22.0.jar:/usr/share/logstash/logstash-core/lib/jars/j2objc-annotations-1.1.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-annotations-2.9.1.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-core-2.9.1.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-databind-2.9.1.jar:/usr/share/logstash/logstash-core/lib/jars/jackson-dataformat-cbor-2.9.1.jar:/usr/share/logstash/logstash-core/lib/jars/janino-3.0.8.jar:/usr/share/logstash/logstash-core/lib/jars/javac-shaded-9-dev-r4023-3.jar:/usr/share/logstash/logstash-core/lib/jars/jruby-complete-9.1.13.0.jar:/usr/share/logstash/logstash-core/lib/jars/jsr305-1.3.9.jar:/usr/share/logstash/logstash-core/lib/jars/log4j-api-2.9.1.jar:/usr/share/logstash/logstash-core/lib/jars/log4j-core-2.9.1.jar:/usr/share/logstash/logstash-core/lib/jars/log4j-slf4j-impl-2.9.1.jar:/usr/share/logstash/logstash-core/lib/jars/logstash-core.jar:/usr/share/logstash/logstash-core/lib/jars/slf4j-api-1.7.25.jar org.logstash.Logstash -f tesb.conf


(Magnus Bäck) #7

And what's in tesb.conf? Increase Logstash's loglevel and look for entries in the Logstash log related to the filenames you're trying to read.


(Amritesh Mishra) #8

That testb.conf is the configuration file for log reading of tesb.log and one thing more how can we increase logstash's level.

If the pipe is running the logstash should read the log file but it is not reading.
Can you how to increase the logstash level?


(Magnus Bäck) #9

Logstash's loglevel can be set either via a command-line option (https://www.elastic.co/guide/en/logstash/current/running-logstash-command-line.html) or via a logstash.yml setting (https://www.elastic.co/guide/en/logstash/current/logstash-settings-file.html).


(Amritesh Mishra) #10

Can you see this what are the changes need to be done.

Settings file in YAML

Settings can be specified either in hierarchical form, e.g.:

pipeline:

batch:

size: 125

delay: 5

Or as flat keys:

pipeline.batch.size: 125

pipeline.batch.delay: 5

------------ Node identity ------------

Use a descriptive name for the node:

node.name: test

If omitted the node name will default to the machine's host name

------------ Data path ------------------

Which directory should be used by logstash and its plugins

for any persistent needs. Defaults to LOGSTASH_HOME/data

path.data: /var/lib/logstash

------------ Pipeline Settings --------------

The ID of the pipeline.

pipeline.id: main

Set the number of workers that will, in parallel, execute the filters+outputs

stage of the pipeline.

This defaults to the number of the host's CPU cores.

pipeline.workers: 2

How many events to retrieve from inputs before sending to filters+workers

pipeline.batch.size: 125

How long to wait in milliseconds while polling for the next event

before dispatching an undersized batch to filters+outputs

pipeline.batch.delay: 50

Force Logstash to exit during shutdown even if there are still inflight

events in memory. By default, logstash will refuse to quit until all

received events have been pushed to the outputs.

WARNING: enabling this can lead to data loss during shutdown

pipeline.unsafe_shutdown: false

------------ Pipeline Configuration Settings --------------

Where to fetch the pipeline configuration for the main pipeline

path.config:

Pipeline configuration string for the main pipeline

config.string:

At startup, test if the configuration is valid and exit (dry run)

config.test_and_exit: false

Periodically check if the configuration has changed and reload the pipeline

This can also be triggered manually through the SIGHUP signal

config.reload.automatic: false

How often to check if the pipeline configuration has changed (in seconds)

config.reload.interval: 3s

Show fully compiled configuration as debug log message

NOTE: --log.level must be 'debug'

config.debug: false

When enabled, process escaped characters such as \n and " in strings in the

pipeline configuration files.

config.support_escapes: false

------------ Module Settings ---------------

Define modules here. Modules definitions must be defined as an array.

The simple way to see this is to prepend each name with a -, and keep

all associated variables under the name they are associated with, and

above the next, like this:

modules:

- name: MODULE_NAME

var.PLUGINTYPE1.PLUGINNAME1.KEY1: VALUE

var.PLUGINTYPE1.PLUGINNAME1.KEY2: VALUE

var.PLUGINTYPE2.PLUGINNAME1.KEY1: VALUE

var.PLUGINTYPE3.PLUGINNAME3.KEY1: VALUE

Module variable names must be in the format of

var.PLUGIN_TYPE.PLUGIN_NAME.KEY

modules:

------------ Cloud Settings ---------------

Define Elastic Cloud settings here.

Format of cloud.id is a base64 value e.g. dXMtZWFzdC0xLmF3cy5mb3VuZC5pbyRub3RhcmVhbCRpZGVudGlmaWVy

and it may have an label prefix e.g. staging:dXMtZ...

This will overwrite 'var.elasticsearch.hosts' and 'var.kibana.host'

cloud.id:

Format of cloud.auth is: :

This is optional

If supplied this will overwrite 'var.elasticsearch.username' and 'var.elasticsearch.password'

If supplied this will overwrite 'var.kibana.username' and 'var.kibana.password'

cloud.auth: elastic:

------------ Queuing Settings --------------

Internal queuing model, "memory" for legacy in-memory based queuing and

Internal queuing model, "memory" for legacy in-memory based queuing and

"persisted" for disk-based acked queueing. Defaults is memory

queue.type: memory

If using queue.type: persisted, the directory path where the data files will be stored.

Default is path.data/queue

path.queue:

If using queue.type: persisted, the page data files size. The queue data consists of

append-only data files separated into pages. Default is 64mb

queue.page_capacity: 64mb

If using queue.type: persisted, the maximum number of unread events in the queue.

Default is 0 (unlimited)

queue.max_events: 0

If using queue.type: persisted, the total capacity of the queue in number of bytes.

If you would like more unacked events to be buffered in Logstash, you can increase the

capacity using this setting. Please make sure your disk drive has capacity greater than

the size specified here. If both max_bytes and max_events are specified, Logstash will pick

whichever criteria is reached first

Default is 1024mb or 1gb

queue.max_bytes: 1024mb

If using queue.type: persisted, the maximum number of acked events before forcing a checkpoint

Default is 1024, 0 for unlimited

queue.checkpoint.acks: 1024

If using queue.type: persisted, the maximum number of written events before forcing a checkpoint

Default is 1024, 0 for unlimited

queue.checkpoint.writes: 1024

If using queue.type: persisted, the interval in milliseconds when a checkpoint is forced on the head page

Default is 1000, 0 for no periodic checkpoint.

queue.checkpoint.interval: 1000

------------ Dead-Letter Queue Settings --------------

Flag to turn on dead-letter queue.

dead_letter_queue.enable: false

If using dead_letter_queue.enable: true, the maximum size of each dead letter queue. Entries

will be dropped if they would increase the size of the dead letter queue beyond this setting.

Default is 1024mb

dead_letter_queue.max_bytes: 1024mb

If using dead_letter_queue.enable: true, the directory path where the data files will be stored.

Default is path.data/dead_letter_queue

path.dead_letter_queue:

------------ Metrics Settings --------------

Bind address for the metrics REST endpoint

http.host: "127.0.0.1"

Bind port for the metrics REST endpoint, this option also accept a range

(9600-9700) and logstash will pick up the first available ports.

http.port: 9600-9700

------------ Debugging Settings --------------

Options for log.level:

* fatal

* error

* warn

* info (default)

* debug

* trace

log.level: info

path.logs: /var/log/logstash

------------ Other Settings --------------

Where to find custom plugins

path.plugins: []

Can you have a look into the logstash.yml file so that we can get to know something what are the changes need to be done.


(Magnus Bäck) #11

Always post configuration files as preformatted text so they becomes readable.

Change the log.level option to "debug".


(Amritesh Mishra) #12

but these all lines mentioned above are commented.


What are things which are needed to be uncommented. in this.


(Magnus Bäck) #13

If the log.level line has been commented you obviously have to uncomment it.

Please don't post screenshots. Use copy/paste and format configuration files and log snippets as preformatted text using Markdown notation or the </> toolbar button.


(system) #14

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