ambari-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Siddharth Wagle (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-13517) Ambari Server JVM crashed after several clicks in Web UI to navigate graph timerange
Date Thu, 22 Oct 2015 01:31:27 GMT
Siddharth Wagle created AMBARI-13517:
----------------------------------------

             Summary: Ambari Server JVM crashed after several clicks in Web UI to navigate
graph timerange
                 Key: AMBARI-13517
                 URL: https://issues.apache.org/jira/browse/AMBARI-13517
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.1.2
            Reporter: Siddharth Wagle
            Assignee: Siddharth Wagle
            Priority: Critical
             Fix For: 2.1.3


Max Heap restriction problem: Ehcache library that we use has a limit of how far in the object
graph it traverses to find size of an Cached reference, this is to make it performant. Default
limit = 1000.
_Objective of the patch_:
- Provide a custom Sizing engine for Ehcache that will provide a close approximation of the
data in the cache with significant perf gain. Premise: Since we know the data structures we
can make better estimates.
- Expectation from sizing engine : Discrepancy of less than 10K for a DS of size 10 MB (Proven
with a unit test)



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message