Couchbase Server

compile ep-engine on windows with tcmalloc ( memory accoutning issues in windows when node is actively ejecting items when it reaches low watermark ( delta between mem_used and OS reported allocated memory up to 4 GB ))

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Blocker Blocker
  • Resolution: Fixed
  • Affects Version/s: 1.6.5.4, 1.7.1, 1.7.1.1, 1.7.2, 1.8.0
  • Fix Version/s: 1.8.1, 1.8.2
  • Component/s: bucket-engine, couchbase-bucket
  • Security Level: Public
  • Environment:
    windows 2008 64-bit
    15 GB ram
    8 B ram

Description

this happens because memcached in windows is not using tcmalloc implementation and memcached process is not releasing the memory which was allocated before.

Activity

Ascending order - Click to sort in descending order
Farshid Ghods made changes -
Field Original Value New Value
Assignee Bin Cui [ bcui ]
Farshid Ghods made changes -
Fix Version/s 1.8.1 [ 10249 ]
Affects Version/s 1.8.0 [ 10248 ]
Affects Version/s 1.7.2 [ 10203 ]
Affects Version/s 1.7.1.1 [ 10210 ]
Affects Version/s 1.7.1 [ 10183 ]
Affects Version/s 1.6.5.4 [ 10181 ]
Priority Major [ 3 ] Blocker [ 1 ]
Component/s ep_engine [ 10013 ]
Component/s memcached [ 10015 ]
Farshid Ghods made changes -
Attachment mem-usage-issue-windows.pdf [ 12208 ]
Farshid Ghods made changes -
Summary rebalance failures in windows installation because memcached uses lot of swap when resident ratio ( active/replica ) < 100% memory accoutning issues in windows when node is actively ejecting items when it reaches low watermark ( delta between mem_used and OS reported allocated memory up to 4 GB )
Environment windows 2008 64-bit
15 GB ram
8 B ram
Thuan Nguyen made changes -
Attachment report_memories_perf_on_windows_at_dgm.docx [ 12209 ]
Bin Cui made changes -
Status Open [ 1 ] Resolved [ 5 ]
Fix Version/s 1.8.0 [ 10248 ]
Resolution Fixed [ 1 ]
Farshid Ghods made changes -
Fix Version/s 1.8.0 [ 10248 ]
Dipti Borkar made changes -
Fix Version/s 1.8.1 [ 10295 ]
Farshid Ghods made changes -
Component/s couchbase-bucket [ 10173 ]
Component/s ep_engine [ 10013 ]
Farshid Ghods made changes -
Summary memory accoutning issues in windows when node is actively ejecting items when it reaches low watermark ( delta between mem_used and OS reported allocated memory up to 4 GB ) compile ep-engine on windows with tcmalloc ( memory accoutning issues in windows when node is actively ejecting items when it reaches low watermark ( delta between mem_used and OS reported allocated memory up to 4 GB ))
Labels 1.8.1-release-notes
Peter Wansch made changes -
Component/s bucket-engine [ 10010 ]
Component/s memcached-bucket(default-engine) [ 10015 ]
Farshid Ghods made changes -
Status Resolved [ 5 ] Closed [ 6 ]

People

  • Assignee:
    Bin Cui
    Reporter:
    Farshid Ghods
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Dates

  • Created:
    Updated:
    Resolved: