Details
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Bug
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Resolution: Fixed
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Major - P3
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4.4.0
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None
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Fully Compatible
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ALL
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v4.4
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Execution Team 2020-10-05
Description
In SERVER-42037 we introduced a freeStorageSize metric that reports the amount of bytes available for reuse in the oplog table. But this value is only appended to serverStatus if it is non-zero, which creates frequent schema changes in the case where the oplog table has only a small amount of free space. In one test back-of-the-envelope calculation indicates this was cutting FTDC retention in half. The value should be included in serverStatus even if it's 0.
Attachments
Issue Links
- is documented by
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DOCS-13889 Investigate changes in SERVER-50491: Frequent schema changes due to freeStorageSize limit FTDC retention
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- Closed
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- is related to
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SERVER-42037 Expose WiredTiger block-manager stats with scale support
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- Closed
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