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Fix 'zfs send/recv' hang with 16M blocks

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When using 16MB blocks the send/recv queue's aren't quite big
enough.  This change leaves the default 16M queue size which a
good value for most pools.  But it additionally ensures that the
queue sizes are at least twice the allowed zfs_max_recordsize.

Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7365 
Closes #7404
This commit is contained in:
Brian Behlendorf
2018-04-08 19:41:15 -07:00
committed by GitHub
parent 7b47628acb
commit 3b0d99289a
2 changed files with 37 additions and 4 deletions
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man/man5/zfs-module-parameters.5
+25
View File
@@ -1919,6 +1919,31 @@ Allow sending of corrupt data (ignore read/checksum errors when sending data)
Use \fB1\fR for yes and \fB0\fR for no (default).
.RE
.sp
.ne 2
.na
\fBzfs_send_queue_length\fR (int)
.ad
.RS 12n
The maximum number of bytes allowed in the \fBzfs send\fR queue. This value
must be at least twice the maximum block size in use.
.sp
Default value: \fB16,777,216\fR.
.RE
.sp
.ne 2
.na
\fBzfs_recv_queue_length\fR (int)
.ad
.RS 12n
.sp
The maximum number of bytes allowed in the \fBzfs receive\fR queue. This value
must be at least twice the maximum block size in use.
.sp
Default value: \fB16,777,216\fR.
.RE
.sp
.ne 2
.na