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We're currently checking the wrong parameter from "serverStatus" to see if checkpoint cursors are supported by a storage engine. This prevents the background validation hook from running at all.
Here, we check for
!conn.adminCommand("serverStatus").storageEngine.supportsCheckpoints
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when we should be checking for
!conn.adminCommand("serverStatus").storageEngine.supportsCheckpointCursors
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Currently, running this with the WiredTiger we see this:
Skipping background validation against test node: localhost:20000 because its storage engine does not support background validation (checkpoints).
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Logging the "serverStatus.storageEngine" we have these options:
{
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"name" : "wiredTiger",
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"supportsCommittedReads" : true,
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"oldestRequiredTimestampForCrashRecovery" : Timestamp(1572447953, 4),
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"supportsPendingDrops" : true,
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"dropPendingIdents" : NumberLong(0),
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"supportsSnapshotReadConcern" : true,
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"supportsCheckpointCursors" : true,
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"readOnly" : false,
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"persistent" : true,
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"backupCursorOpen" : false
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}
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