taskgzochi - Tasks: task #14004, Remove lmdb and hdb storage engines

 
 

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task #14004: Remove lmdb and hdb storage engines

Submitter:  Julian Graham <juliang>
Submitted:  Tue 24 May 2016 03:20:18 AM UTC
   
 
Should Start On:  Mon 23 May 2016 04:00:00 AM UTC Should be Finished on:  Mon 23 May 2016 04:00:00 AM UTC
Category:  None Priority:  5 - Normal
Status:  Done Privacy:  Public
Assigned to:  juliang Percent Complete:  100%
Open/Closed:  Closed Effort:  0.00

Tue 24 May 2016 03:20:18 AM UTC, original submission:  

They are, unfortunately, not suitable for use in gzochid, on account of their locking and concurrency models:

LMDB: "Writes are fully serialized; only one write transaction may be active at a time, which guarantees that writers can never deadlock."

HDB: "upscaledb is thread-safe and can be used from multiple threads without problems. However, it is not yet concurrent; it uses a big lock to make sure that only one thread can access the upscaledb environment at a time."

Julian Graham <juliang>
Group administrator

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-05-30 juliang StatusNone Done
        Percent Complete0% 100%
        Open/ClosedOpen Closed

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