Details
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Bug
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Resolution: Done
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Major - P3
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None
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None
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None
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Fully Compatible
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ALL
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Platforms 17 (07/15/16)
Description
Use the shell to naively insert 1gb of data:
var s = (new Array(1048576)).join('x'); |
db.test.drop();
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for (i=0; i<1000;i++) db.test.insert({s:s}) |
While this is running watch the vmem and rss of the shell (eg. in top hit 'm' to sort by memory and 's0.3' to get fast update) — resident will grow to 1gb.
- Running gc() doesn't help
- Only affects write commands, does not happen if legacy writes are forced, so highly likely to be in the shell's Bulk API.
- Seems to affect all shells since 2.6 (write commands), though worse now on mozjs
- Same for ordered true and false
- Same for single inserts and multi inserts
- Variants which also exhibit the problem:
var foo = null
for (i=0; i<1000;i++) foo = db.test.insert({s:s})
foo = null
gc()var foo = []
for (i=0; i<1000;i++) foo.push(db.test.insert({s:s}))
foo = null
gc()
Attachments
Issue Links
- is related to
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SERVER-25477 JS does not GC properly
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- Closed
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