Skip to main content

Kibana/logstash integration with reports or JIRA

We use Logstash for our centralized logging. All our app nodes track exceptions and write them to scribe, in night a python scribe consumer aggregates that information and sends an email with top exceptions with counts and first 200 characters of the exception.  Well the problem was that now I have to go through email and for each row I need to find the exception in logstash or in application logs. This is painful, I wanted to find some better way.


So I changed our exception tracking code to include a requestId into scribe logs and this requestId is logged with each exception to logstash. Now all I need to do is add a column in my table to include a logstash query link.  Problem is that it wasnt that straight forward. Ultimately after reading some forums I found that I need  to  prepare a search json and then base64 encode it and then create a url and voila I was done.  What used to take 1 hour to trace 10 exceptions would take me just 30 mins. 


    linkPrefix = "https://%s-logstash.xyz.com/#" % dc_name.lower()
    now_java_ts = int(time.time()) * 1000
    searchJson = """{"search":" @fields.requestid:\\"%s\\"","fields":[],"offset":0,"timeframe":"172800","graphmode":"count","time":{"user_interval":0},"stamp":%s,"mode":"","analyze_field":""}"""%(sampleRequestId, now_java_ts)
    searchJsonEncoded = base64.b64encode(searchJson)
    linkUrl = linkPrefix + searchJsonEncoded
    link = "
RequestId:%s" %(linkUrl, sampleRequestId)




The new report looks like



Other fancy things in the report are these Up and down arrows that tell me if the exceptions are going up or down and % will tell me how much they are up and down from yesterday or after a release.

the link on count will take me to graphite graph that tells me how an exception is trending and when it was introduced as shown below.



Comments

  1. Ok - it took me a couple of reads to figure out what this is for, so correct me if I'm wrong...

    This is to add link into the emails you receive (or that JIRA receives) that allows you to navigate back into your logstash, at exactly the right point.

    The report you show is from JIRA.

    ReplyDelete
  2. Yes Martin, sorry if the blog post was cryptic, I am not a professional blogger and I wrote it in 5-10 min:).

    So yes we daily generate some reports from scribe logs and create JIRA tickets automatically. So I need the JIRA ticket and report to have a link to logstash so that the users can click on it to jump directly to logstash.

    ReplyDelete

Post a Comment

Popular posts from this blog

RabbitMQ java clients for beginners

Here is a sample of a consumer and producer example for RabbitMQ. The steps are
Download ErlangDownload Rabbit MQ ServerDownload Rabbit MQ Java client jarsCompile and run the below two class and you are done.
This sample create a Durable Exchange, Queue and a Message. You will have to start the consumer first before you start the for the first time.

For more information on AMQP, Exchanges, Queues, read this excellent tutorial
http://blogs.digitar.com/jjww/2009/01/rabbits-and-warrens/

+++++++++++++++++RabbitMQProducer.java+++++++++++++++++++++++++++
import com.rabbitmq.client.Connection; import com.rabbitmq.client.Channel; import com.rabbitmq.client.*; public class RabbitMQProducer { public static void main(String []args) throws Exception { ConnectionFactory factory = new ConnectionFactory(); factory.setUsername("guest"); factory.setPassword("guest"); factory.setVirtualHost("/"); factory.setHost("127.0.0.1"); factory.setPort(5672); Conne…

Logging to Graphite monitoring tool from java

We use Graphite as a tool for monitoring some stats and watch trends. A requirement is to monitor impact of new releases as build is deployed to app nodes to see if things like
1) Has the memcache usage increased.
2) Has the no of Java exceptions went up.
3) Is the app using more tomcat threads.
Here is a screenshot

We changed the installer to log a deploy event when a new build is deployed. I wrote a simple spring bean to log graphite events using java. Logging to graphite is easy, all you need to do is open a socket and send lines of events.
import org.slf4j.Logger;import org.slf4j.LoggerFactory; import java.io.OutputStreamWriter; import java.io.Writer; import java.net.Socket; import java.util.HashMap; import java.util.Map; public class GraphiteLogger { private static final Logger logger = LoggerFactory.getLogger(GraphiteLogger.class); private String graphiteHost; private int graphitePort; public String getGraphiteHost() { return graphiteHost; } public void setGraphite…

Jersey posting multipart data

This took me sometime to figure out mostly it was because I was only including jersey-multipart-1.6.jar but I was not including mimepull-1.3.jar.

So the intent is to upload a file using REST api and we need pass meta attributes in addition to uploading the file. Also the intent is to stream the file instead of first storing it on the local disk. Here is some sample code.
@Path("/upload-service") public class UploadService { @Context protected HttpServletResponse response; @Context protected HttpServletRequest request; @POST @Consumes(MediaType.MULTIPART_FORM_DATA) @Produces(MediaType.APPLICATION_JSON) public String uploadFile(@PathParam("fileName") final String fileName, @FormDataParam("workgroupId") String workgroupId, @FormDataParam("userId") final int userId, @FormDataParam("content") final InputStream content) throws JSONException { //.......Upload the file to S3 or netapp or any storage service } }
Now to tes…