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Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events

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With anything but fletcher-4, even a tiny change in the input will cause
the checksum value to change completely.  So knowing the actual and
expected checksums doesn't provide much more information than "they
don't match".  The harm in sending them is simply that they bloat the
event.  In particular, on FreeBSD the event must fit into a 1016 byte
buffer.

Fixes #14717 for mirrored pools.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rich Ercolani <rincebrain@gmail.com>
Signed-off-by: Alan Somers <asomers@gmail.com>
Sponsored-by: Axcient
Closes #14717
Closes #15052
This commit is contained in:
Alan Somers
2023-07-11 15:13:57 -06:00
committed by Brian Behlendorf
parent cf2a225b24
commit 6fd87e1d8d
7 changed files with 2 additions and 20 deletions
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man/man8/zpool-events.8
-4
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@@ -305,10 +305,6 @@ The time when a given I/O request was submitted.
The time required to service a given I/O request.
.It Sy prev_state
The previous state of the vdev.
.It Sy cksum_expected
The expected checksum value for the block.
.It Sy cksum_actual
The actual checksum value for an errant block.
.It Sy cksum_algorithm
Checksum algorithm used.
See