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Type:
Question
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Resolution: Incomplete
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Priority:
Major - P3
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None
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Affects Version/s: 2.0.5
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Component/s: Index Maintenance
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Environment:Amazon Linux 64bit
While my clients query with compound field like
{a: x, b: y}, my mongodb server automatically started to build compound index
{a: 1, b: 1} at the same. Then my server became unresponsive for a while, which made my clients get null result when querying.
I checked the mongo log and see the following lines: "build index db.col
", happen very frequently; although I don't define that compound index.
I double checked the col index schema, and didn't find the declaration about the compound index
.
Please enlighten me, I had been checking all mongodb documents regarding to this strange behavior but found nothing. It does cause problem.