From: Alan J. Pippin <ajp@pippins.net>
Date: Sat, 17 Jan 2009 22:39:51 +0000 (-0700)
Subject: Added new throttle option
X-Git-Url: http://git.pippins.net/embedvideo/.git/%22%22.%24thumbnail.%22/checkmark.gif?a=commitdiff_plain;h=005ecf6cfbf1977783b7dd7b4e98af8ce28db378;p=zfs-nexenta%2F.git

Added new throttle option
---

diff --git a/zfs-replicate b/zfs-replicate
index c7e7c2f..84c8c5b 100755
--- a/zfs-replicate
+++ b/zfs-replicate
@@ -177,8 +177,13 @@ if [ $no_markers == 0 ]; then
     fatal_and_exit "-E- remote incremental $zfs rollback command failed" $mailto
   fi
   # Now it should be safe to send the snaps
-  ssh $remote $zfs send -R -I${previous_backup_marker} ${current_backup_marker} | 
-      $zfs receive -vF -d ${local_pool}/${remote_pool}
+  if [[ $throttle_enable == 1 && -e $throttle ]]; then
+    ssh $remote $zfs send -R -I${previous_backup_marker} ${current_backup_marker} | 
+        $throttle $throttle_opts | $zfs receive -vF -d ${local_pool}/${remote_pool}
+  else 
+    ssh $remote $zfs send -R -I${previous_backup_marker} ${current_backup_marker} |
+        $zfs receive -vF -d ${local_pool}/${remote_pool}
+  fi
   if [ $? != 0 ]; then
     fatal_and_exit "-E- remote incremental $zfs send command failed" $mailto
   fi
@@ -197,8 +202,13 @@ else
 
   if [[ -n "$common" ]]; then
     # We found a common snapshot, incrementally send the new snaps
-    ssh $remote $zfs send -R -I${common/*@/@} ${current_backup_marker} |
-        $zfs receive -vF -d ${local_pool}/${remote_pool}
+    if [[ $throttle_enable == 1 && -e $throttle ]]; then
+      ssh $remote $zfs send -R -I${common/*@/@} ${current_backup_marker} |
+          $throttle $throttle_opts | $zfs receive -vF -d ${local_pool}/${remote_pool}
+    else
+      ssh $remote $zfs send -R -I${common/*@/@} ${current_backup_marker} |
+          $zfs receive -vF -d ${local_pool}/${remote_pool}
+    fi
     if [ $? != 0 ]; then
       fatal_and_exit "-E- remote incremental $zfs send command failed" $mailto
     fi
@@ -220,8 +230,13 @@ else
       fi
     fi
     # Send the full filesystem
-    ssh $remote $zfs send -R ${current_backup_marker} |
-        $zfs receive -vF -d ${local_pool}/${remote_pool}
+    if [[ $throttle_enable == 1 && -e $throttle ]]; then
+      ssh $remote $zfs send -R ${current_backup_marker} |
+          $throttle $throttle_opts | $zfs receive -vF -d ${local_pool}/${remote_pool}
+    else
+      ssh $remote $zfs send -R ${current_backup_marker} |
+          $zfs receive -vF -d ${local_pool}/${remote_pool}
+    fi
     if [ $? != 0 ]; then
       fatal_and_exit "-E- remote full $zfs send command failed" $mailto
     fi
diff --git a/zfs-scripts.conf.dist b/zfs-scripts.conf.dist
index 42f387d..cd9a818 100644
--- a/zfs-scripts.conf.dist
+++ b/zfs-scripts.conf.dist
@@ -39,6 +39,11 @@ SNAP_UNDER_TEST=
 # Specify the maximum run time in minutes that the replicate script can run for (0=no limit)
 maxruntime=0
 
+# Setup throttling related parameters that will rate limit the zfs send | zfs receive pipe
+throttle_enable=1
+throttle_opt="-M 5"
+throttle=/usr/local/bin/throttle
+
 # Specify the list of filesystems to replicate from the remote to the local_pool (1 per line)
 # (enter 1 filesystem per line)
 filesystems_to_replicate='