Release Notes 4.2.0.99

New and Enhanced Features in 4.2.0

Performance Dashboard: Adding Multiple Controllers at a Time

Earlier, in case of Inventory sheet, only one controller can be added at a time, which was consuming more time while environment having more controllers (Example: 8-10). By this enhancement, the user can add multiple controllers and multiple appliances at one time.

Alert: Using the Value Generated from Graph A as a Threshold for Graph B

An alert is generated on a metric by comparing with threshold value of another metric based on some operators, such as >=, <=, >, <, !=, ==.

Example: To generate alert on 4xx metric of Transaction Failure group only when number of transaction failure due to 4xx is <above operator> by 10% of total traffic like:

• Current Total Traffic = 20
• Current 4xx = 5

Alert is generated only when

• case 1(>=): 5 >= 10 % of 20 ==>  if(5 >= 2) ==> generate alert
• case 2(<=): 5 <= 10 % of 20 ==>  if(5 <= 2) ==> alert will not generate
• case 3(>): 5 > 10 % of 20 ==>  if(5 > 2) ==> generate alert
• case 4(<): 5 < 10 % of 20 ==>  if(5 < 2) ==> alert will not generate
• case 5(!=): 5 != 10 % of 20 ==>  if(5 != 2) ==> generate alert
• case 6(==): 5 == 10 % of 20 ==>  if(5 == 2) ==> alert will not generate

Monitors: API wise Monitor Data for Access Log Monitor

Support for regex at file as well as directory level is provided. Now, machine agent will read and send data from multiple files if modified at the same time.

NetCloud: Reduced Logs of Epoll Timeout for RTC Fail

It was observed that in generator if RTC was getting failed due to epoll timeout, then it was difficult to find out the reason why RTC was getting failed as the trace log file was also full with epoll logs only. Now, the logs are reduced of epoll timeout for RTC fail and the user can get the reason for RTC failed.

ND Configuration UI: Entry point for Apache Solr

org.apache.solr.client.solrj.SolrRequest.process(Lorg/apache/solr/client/solrj/SolrClient;)Lorg/apache/solr/client/solrj/SolrResponse;|CustomCallout:ApacheSolr|1

org.apache.solr.client.solrj.SolrRequest.process(Lorg/apache/solr/client/solrj/SolrClient;Ljava/lang/String;)Lorg/apache/solr/client/solrj/SolrResponse;|CustomCallout:ApacheSolr|1

NetForest: “Query & Fetch” Search Type

This enhancement is related to query performance enhancement. Earlier, it was working on top 10k docs, now it will fetch number of docs from each shards (by below formula) first then query will be executed. 

Formula to calculate documents from each shards: [(10000/no.of shards)+20% ]. This concept is not applicable for stats, docstats, and streamstats.

NetForest: Percentile Function with VIS Command

A multi-value metrics aggregation that calculates one or more percentiles over numeric values extracted from the aggregated documents. These values can be generated by a provided script or extracted from specific numeric or histogram fields in the documents.

Syntax for Percentiles metric in VIS:

<query>|VIS Percentiles(<metric field> percent=<percentile number with(-)>) by <bucket field>

Example:

*|VIS Percentiles(resp_size percent=25-50-75-99) by @timestamp[]

Other Enhancements

Bug Fixes