But my guess is that there's similar unfortunate behavior related to
index open and close...?
(Which would happen way more regularly?) Agreed w.r.t. priority if we
are in "prototype" mode,
but if anyone wanted to go "live" and run for months at a time, this
would be a leak we'd feel,
potentially. We need to devise and do some testing around index/memory
management and
the lifecycle there. :-)
On 7/22/15 12:25 AM, abdullah alamoudi wrote:
It should be fixed but I don't think that it is a release blocker since
this rarely happen and the amount of memory per index instance object is
almost nothing.
just my 2 cents.
On Wed, Jul 22, 2015 at 10:10 AM, Michael Carey <[email protected]> wrote:
Definitely a high priority bug - we should try to fix this pre-release!
-------- Forwarded Message --------
Subject: Issue 910 in asterixdb: Index creation/use can cause
resource leakage
Date: Wed, 22 Jul 2015 03:13:59 +0000
From: [email protected]
Reply-To: [email protected]
To: [email protected]
Status: Accepted
Owner: [email protected]
CC: [email protected]
Labels: Type-Defect Priority-High
New issue 910 by [email protected]: Index creation/use can cause resource
leakage
https://code.google.com/p/asterixdb/issues/detail?id=910
In IndexDataflowHelper, calling create() will make an index instance, and
create it. This inserts an entry into the IndexLifecycleManager's resource
map. Entries in this map are only freed once unregister() is called on an
index. However this only happens when an index is destroyed, not when it is
closed. There is no other way in which references to indexes are garbage
collected (even though there is a reference counter in the IndexInfo).
Therefore creating or using an index uses resources in this map even if
they are not active, and were created during the lifetime of the NC- and
there is no way to free that memory.
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