# HG changeset patch
# User Rob Hoes <rob.hoes@xxxxxxxxxx>
Split off bond/VLAN reconstruction code from Dbsync_slave
When a pool slave starts up, it needs synchronise its bonds and VLANs with the
pool master. This code is in the Dbsync_slave module, but does not really
belong there (DBsync_slave is for synchronising DB fields such as
PIF.currently_attached with the state of the physical system). This patch gives
the bond/VLAN recreation code its own module.
Signed-off-by: Rob Hoes <rob.hoes@xxxxxxxxxx>
diff -r 0330decaabcb ocaml/xapi/OMakefile
--- a/ocaml/xapi/OMakefile
+++ b/ocaml/xapi/OMakefile
@@ -180,6 +180,7 @@
dbsync \
dbsync_slave \
dbsync_master \
+ sync_networking \
storage_access \
events \
import_xva \
diff -r 0330decaabcb ocaml/xapi/dbsync_slave.ml
--- a/ocaml/xapi/dbsync_slave.ml
+++ b/ocaml/xapi/dbsync_slave.ml
@@ -115,151 +115,6 @@
end else
Db.Host.remove_from_other_config ~__context ~self:host
~key:Xapi_globs.host_no_local_storage
-(** Copy Bonds from master *)
-let copy_bonds_from_master ~__context =
- if Pool_role.is_master () then () (* if master do nothing *)
- else
- Helpers.call_api_functions ~__context
- (fun rpc session_id ->
- (* if slave: then inherit network config (bonds and vlans) from master
(if we don't already have them) *)
- let me = !Xapi_globs.localhost_ref in
- let pool = List.hd (Db.Pool.get_all ~__context) in
- let master = Db.Pool.get_master ~__context ~self:pool in
-
- let all_pifs = Db.PIF.get_records_where ~__context
~expr:Db_filter_types.True in
- let all_master_pifs = List.filter (fun (_, prec) ->
prec.API.pIF_host=master) all_pifs in
- let my_pifs = List.filter (fun (_, pif) -> pif.API.pIF_host=me)
all_pifs in
-
- (* Consider Bonds *)
- debug "Resynchronising bonds";
- let all_bonds = Db.Bond.get_records_where ~__context
~expr:Db_filter_types.True in
- let maybe_create_bond_for_me bond =
- let network = Db.PIF.get_network ~__context
~self:bond.API.bond_master in
- let slaves_to_mac_and_device_map =
- List.map (fun self -> self, Db.PIF.get_MAC ~__context ~self,
Db.PIF.get_device ~__context ~self) bond.API.bond_slaves in
- (* Take the MAC addr of the bond and figure out whether this is the
MAC address of any of the
- slaves. If it is then we will use this to ensure that we inherit
the MAC address from the _same_
- slave when we re-create on the slave *)
- let master_bond_mac = Db.PIF.get_MAC ~__context
~self:bond.API.bond_master in
- let master_slaves_with_same_mac_as_bond (* expecting a list of at
most 1 here *) =
- List.filter (fun (pifref,mac,device)->mac=master_bond_mac)
slaves_to_mac_and_device_map in
- (* This tells us the device that the master used to inherit the
bond's MAC address
- (if indeed that is what it did; we set it to None if we think it
didn't do this) *)
- let device_of_primary_slave =
- match master_slaves_with_same_mac_as_bond with
- [] -> None
- | [_,_,device] ->
- debug "Master bond has MAC address derived from %s" device;
- Some device (* found single slave with mac matching bond
master => this was one that we inherited mac from *)
- | _ -> None in
- (* Look at the master's slaves and find the corresponding slave
PIFs. Note that the slave
- might not have the necessary devices: in this case we'll try to
make partial bonds *)
- let slave_devices = List.map (fun (_,_,device)->device)
slaves_to_mac_and_device_map in
- let my_slave_pifs = List.filter (fun (_, pif) -> List.mem
pif.API.pIF_device slave_devices && pif.API.pIF_VLAN = (-1L)) my_pifs in
-
- let my_slave_pif_refs = List.map fst my_slave_pifs in
- (* Do I have a pif that I should treat as a primary pif - i.e. the
one to inherit the MAC address from on my bond create? *)
- let my_primary_slave =
- match device_of_primary_slave with
- None -> None (* don't care cos we couldn't even figure out who
master's primary slave was *)
- | Some master_primary ->
- begin
- match List.filter (fun (_,pif) ->
pif.API.pIF_device=master_primary) my_slave_pifs with
- [] -> None
- | [pifref,_] ->
- debug "I have found a PIF to use as primary bond slave
(will inherit MAC address of bond from this PIF).";
- Some pifref (* this is my pif corresponding to the
master's primary slave *)
- | _ -> None
- end in
- (* If I do have a pif that I need to treat as my primary slave then
I need to put it first in the list so the
- bond master will inherit it's MAC address *)
- let my_slave_pif_refs =
- match my_primary_slave with
- None -> my_slave_pif_refs (* no change *)
- | Some primary_pif -> primary_pif :: (List.filter (fun x->
x<>primary_pif) my_slave_pif_refs) (* remove primary pif ref and stick it on
the front *) in
-
- match List.filter (fun (_, pif) -> pif.API.pIF_network = network)
my_pifs, my_slave_pifs with
- | [], [] ->
- (* No bond currently exists but neither do any slave interfaces
-> do nothing *)
- warn "Cannot create bond %s at all: no PIFs exist on slave"
bond.API.bond_uuid
- | [], _ ->
- (* No bond currently exists but some slave interfaces do ->
create a (partial?) bond *)
- let (_: API.ref_Bond) = Client.Bond.create rpc session_id
network my_slave_pif_refs "" in ()
- | [ _, { API.pIF_bond_master_of = [ slave_bond ] } ], _ ->
- (* Some bond exists, check whether the existing set of slaves is
the same as the potential set *)
- let current_slave_pifs = Db.Bond.get_slaves ~__context
~self:slave_bond in
- if not (List.set_equiv (List.setify current_slave_pifs)
(List.setify my_slave_pif_refs)) then begin
- debug "Partial bond exists; recreating";
- Client.Bond.destroy rpc session_id slave_bond;
- let (_: API.ref_Bond) = Client.Bond.create rpc session_id
network my_slave_pif_refs "" in ()
- end
- | [ _, { API.pIF_uuid = uuid } ], _ ->
- warn "Couldn't create bond on slave because PIF %s already on
network %s"
- uuid (Db.Network.get_uuid ~__context ~self:network) in
- let master_bonds = List.filter (fun (_, b) -> List.mem
b.API.bond_master (List.map fst all_master_pifs)) all_bonds in
- List.iter (Helpers.log_exn_continue "resynchronising bonds on slave"
maybe_create_bond_for_me)
- (List.map snd master_bonds))
-
-(** Copy VLANs from master *)
-let copy_vlans_from_master ~__context =
- if Pool_role.is_master () then () (* if master do nothing *)
- else
- (* Consider VLANs after bonds so we can add VLANs on top of bonded
interface (but not v.v.) *)
-
- (* Here's how we do vlan resyncing:
- We take a VLAN master and record (i) the n/w it's on; (ii) it's VLAN
tag; (iii) the network of the pif that underlies the VLAN [e.g. eth0 underlies
eth0.25]
- We then look to see whether we already have a VLAN record that is (i)
on the same network; (ii) has the same tag; and (iii) also has a pif underlying
it on the same network
- If we do not already have a VLAN that falls into this category then we
make one (as long as we already have a suitable pif to base the VLAN off -- if
we don't have such a
- PIF [e.g. if the master has eth0.25 and we don't have eth0] then we do
nothing)
- *)
- Helpers.call_api_functions ~__context
- (fun rpc session_id ->
- debug "Resynchronising VLANs";
-
- let me = !Xapi_globs.localhost_ref in
- let pool = List.hd (Db.Pool.get_all ~__context) in
- let master = Db.Pool.get_master ~__context ~self:pool in
-
- let all_pifs = Db.PIF.get_records_where ~__context
~expr:Db_filter_types.True in
- let all_master_pifs = List.filter (fun (_, prec) ->
prec.API.pIF_host=master) all_pifs in
- let my_pifs = List.filter (fun (_, pif) -> pif.API.pIF_host=me)
all_pifs in
-
- let master_vlan_pifs = List.filter (fun (_,prec) -> prec.API.pIF_VLAN
<> -1L) all_master_pifs in
- let my_vlan_pifs = List.filter (fun (_,prec) -> prec.API.pIF_VLAN <>
-1L) my_pifs in
-
- let get_network_of_pif_underneath_vlan vlan_pif_ref =
- let pif_underneath_vlan = Helpers.get_pif_underneath_vlan ~__context
vlan_pif_ref in
- let network_of_pif_underneath_vlan = Db.PIF.get_network ~__context
~self:pif_underneath_vlan in
- network_of_pif_underneath_vlan in
-
- let maybe_create_vlan_pif_for_me (master_pif_ref, master_pif_rec) =
- (* check to see if I have any existing pif(s) that for the specified
device, network, vlan... *)
- let existing_pif = List.filter
- (fun (my_pif_ref,my_pif_record) ->
- (* Is my VLAN PIF that we're considering (my_pif_ref) the one
that corresponds to the master_pif we're considering (master_pif_ref)? *)
- true
- && my_pif_record.API.pIF_network =
master_pif_rec.API.pIF_network
- && my_pif_record.API.pIF_VLAN = master_pif_rec.API.pIF_VLAN
- && ((get_network_of_pif_underneath_vlan my_pif_ref) =
(get_network_of_pif_underneath_vlan master_pif_ref))
- ) my_vlan_pifs in
- (* if I don't have any such pif(s) then make one: *)
- if List.length existing_pif = 0
- then
- begin
- (* On the master, we find the pif, p, that underlies the VLAN
(e.g. "eth0" underlies "eth0.25") and then find the network
- that p's on:
- *)
- let network_of_pif_underneath_vlan_on_master =
get_network_of_pif_underneath_vlan master_pif_ref in
- match List.filter (fun (_,prec) ->
prec.API.pIF_network=network_of_pif_underneath_vlan_on_master ) my_pifs with
- [] -> () (* we have no PIF on which to make the vlan; do
nothing *)
- | [(pif_ref,_)] -> (* this is the PIF on which we want to base
our vlan record; let's make it *)
- ignore (Client.VLAN.create ~rpc ~session_id
~tagged_PIF:pif_ref ~tag:master_pif_rec.API.pIF_VLAN
~network:master_pif_rec.API.pIF_network)
- | _ -> () (* this should never happen cos we should never have
more than one of _our_ pifs on the same nework *)
- end in
- (* for each of the master's pifs, create a corresponding one on this
host if necessary *)
- List.iter maybe_create_vlan_pif_for_me master_vlan_pifs
- )
-
(* CA-25162: Dechainify VLANs. We're actually doing this for _all_
* PIFs, not just those relevant to localhost. Mostly this will be
* a no-op, and it shouldn't matter if we fix problems for other hosts
@@ -707,21 +562,6 @@
fix_chained_vlans ~__context
);
- switched_sync Xapi_globs.sync_copy_pifs_from_master (fun () ->
- debug "resynchronising bonded and vlan pif records with pool master";
-(* If you're considering merging up bonds/vlans into a single
- phase, then be careful. I separated them explicitly because previously
- the vlan copy-phase was using out-of-date PIF.get_all_records for itself,
- even though new bonds had been inherited and it needed to
- explicitly refresh its list of PIFs before proceeding to the VLAN phase.. *)
- try
- copy_bonds_from_master ~__context;
- copy_vlans_from_master ~__context;
- with e -> (* Errors here are non-data-corrupting hopefully, so we'll just
carry on regardless... *)
- error "Caught exception syncing PIFs from the master: %s"
(ExnHelper.string_of_exn e);
- log_backtrace ()
- );
-
switched_sync Xapi_globs.sync_resynchronise_pif_currently_attached (fun () ->
debug "resynchronising PIF.currently_attached";
resynchronise_pif_currently_attached ~__context;
diff -r 0330decaabcb ocaml/xapi/sync_networking.ml
--- /dev/null
+++ b/ocaml/xapi/sync_networking.ml
@@ -0,0 +1,186 @@
+(*
+ * Copyright (C) 2006-2009 Citrix Systems Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; version 2.1 only. with the special
+ * exception on linking described in file LICENSE.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *)
+
+open Listext
+open Client
+
+module D=Debug.Debugger(struct let name="sync_networking" end)
+open D
+
+(** Copy Bonds from master *)
+let copy_bonds_from_master ~__context =
+ Helpers.call_api_functions ~__context (fun rpc session_id ->
+ (* if slave: then inherit network config (bonds and vlans) from
master (if we don't already have them) *)
+ let me = !Xapi_globs.localhost_ref in
+ let pool = List.hd (Db.Pool.get_all ~__context) in
+ let master = Db.Pool.get_master ~__context ~self:pool in
+
+ let all_pifs = Db.PIF.get_records_where ~__context
~expr:Db_filter_types.True in
+ let all_master_pifs = List.filter (fun (_, prec) ->
prec.API.pIF_host=master) all_pifs in
+ let my_pifs = List.filter (fun (_, pif) -> pif.API.pIF_host=me)
all_pifs in
+
+ (* Consider Bonds *)
+ debug "Resynchronising bonds";
+ let all_bonds = Db.Bond.get_records_where ~__context
~expr:Db_filter_types.True in
+ let maybe_create_bond_for_me bond =
+ let network = Db.PIF.get_network ~__context
~self:bond.API.bond_master in
+ let slaves_to_mac_and_device_map =
+ List.map (fun self -> self, Db.PIF.get_MAC
~__context ~self, Db.PIF.get_device ~__context ~self)
+ bond.API.bond_slaves in
+ (* Take the MAC addr of the bond and figure out whether
this is the MAC address of any of the
+ * slaves. If it is then we will use this to ensure
that we inherit the MAC address from the _same_
+ * slave when we re-create on the slave *)
+ let master_bond_mac = Db.PIF.get_MAC ~__context
~self:bond.API.bond_master in
+ let master_slaves_with_same_mac_as_bond (* expecting a
list of at most 1 here *) =
+ List.filter (fun (pifref,mac,device) ->
mac=master_bond_mac) slaves_to_mac_and_device_map in
+ (* This tells us the device that the master used to
inherit the bond's MAC address
+ * (if indeed that is what it did; we set it to None if
we think it didn't do this) *)
+ let device_of_primary_slave =
+ match master_slaves_with_same_mac_as_bond with
+ | [] -> None
+ | [_,_,device] ->
+ debug "Master bond has MAC address
derived from %s" device;
+ (* found single slave with mac matching
bond master =>
+ * this was one that we inherited mac
from *)
+ Some device
+ | _ -> None
+ in
+ (* Look at the master's slaves and find the
corresponding slave PIFs. Note that the slave
+ * might not have the necessary devices: in this case
we'll try to make partial bonds *)
+ let slave_devices = List.map (fun (_,_,device)->device)
slaves_to_mac_and_device_map in
+ let my_slave_pifs = List.filter
+ (fun (_, pif) -> List.mem pif.API.pIF_device
slave_devices && pif.API.pIF_VLAN = (-1L)) my_pifs in
+
+ let my_slave_pif_refs = List.map fst my_slave_pifs in
+ (* Do I have a pif that I should treat as a primary pif
-
+ * i.e. the one to inherit the MAC address from on my
bond create? *)
+ let my_primary_slave =
+ match device_of_primary_slave with
+ | None -> None (* don't care cos we couldn't
even figure out who master's primary slave was *)
+ | Some master_primary ->
+ begin
+ match List.filter (fun (_,pif)
-> pif.API.pIF_device=master_primary) my_slave_pifs with
+ | [] -> None
+ | [pifref,_] ->
+ debug "I have found a
PIF to use as primary bond slave (will inherit MAC address of bond from this
PIF).";
+ Some pifref (* this is
my pif corresponding to the master's primary slave *)
+ | _ -> None
+ end
+ in
+ (* If I do have a pif that I need to treat as my
primary slave then I need to put it
+ * first in the list so the bond master will inherit
it's MAC address *)
+ let my_slave_pif_refs =
+ match my_primary_slave with
+ | None -> my_slave_pif_refs (* no change *)
+ | Some primary_pif -> primary_pif ::
(List.filter (fun x-> x<>primary_pif) my_slave_pif_refs) (* remove primary pif
ref and stick it on the front *)
+ in
+ match List.filter (fun (_, pif) -> pif.API.pIF_network
= network) my_pifs, my_slave_pifs with
+ | [], [] ->
+ (* No bond currently exists but neither do any
slave interfaces -> do nothing *)
+ warn "Cannot create bond %s at all: no PIFs
exist on slave" bond.API.bond_uuid
+ | [], _ ->
+ (* No bond currently exists but some slave
interfaces do -> create a (partial?) bond *)
+ let (_: API.ref_Bond) = Client.Bond.create rpc
session_id network my_slave_pif_refs "" in ()
+ | [ _, { API.pIF_bond_master_of = [ slave_bond ] } ], _
->
+ (* Some bond exists, check whether the existing
set of slaves is the same as the potential set *)
+ let current_slave_pifs = Db.Bond.get_slaves
~__context ~self:slave_bond in
+ if not (List.set_equiv (List.setify
current_slave_pifs) (List.setify my_slave_pif_refs)) then
+ begin
+ debug "Partial bond exists; recreating";
+ Client.Bond.destroy rpc session_id
slave_bond;
+ let (_: API.ref_Bond) =
Client.Bond.create rpc session_id network my_slave_pif_refs "" in ()
+ end
+ | [ _, { API.pIF_uuid = uuid } ], _ ->
+ warn "Couldn't create bond on slave because PIF
%s already on network %s"
+ uuid (Db.Network.get_uuid ~__context
~self:network)
+ in
+ let master_bonds =
+ List.filter (fun (_, b) -> List.mem b.API.bond_master
(List.map fst all_master_pifs)) all_bonds in
+ List.iter (Helpers.log_exn_continue "resynchronising bonds on
slave" maybe_create_bond_for_me)
+ (List.map snd master_bonds)
+ )
+
+(** Copy VLANs from master *)
+(* Here's how we do VLAN resyncing:
+ We take a VLAN master and record (i) the Network it is on; (ii) its VLAN
tag;
+ (iii) the Network of the PIF that underlies the VLAN (e.g. eth0 underlies
eth0.25).
+ We then look to see whether we already have a VLAN record that is (i) on
the same Network;
+ (ii) has the same tag; and (iii) also has a PIF underlying it on the same
Network.
+ If we do not already have a VLAN that falls into this category then we make
one,
+ as long as we already have a suitable PIF to base the VLAN off -- if we
don't have such a
+ PIF (e.g. if the master has eth0.25 and we don't have eth0) then we do
nothing.
+*)
+let copy_vlans_from_master ~__context =
+ Helpers.call_api_functions ~__context (fun rpc session_id ->
+ debug "Resynchronising VLANs";
+
+ let me = !Xapi_globs.localhost_ref in
+ let pool = List.hd (Db.Pool.get_all ~__context) in
+ let master = Db.Pool.get_master ~__context ~self:pool in
+
+ let all_pifs = Db.PIF.get_records_where ~__context
~expr:Db_filter_types.True in
+ let all_master_pifs = List.filter (fun (_, prec) ->
prec.API.pIF_host=master) all_pifs in
+ let my_pifs = List.filter (fun (_, pif) -> pif.API.pIF_host=me)
all_pifs in
+
+ let master_vlan_pifs = List.filter (fun (_,prec) ->
prec.API.pIF_VLAN <> -1L) all_master_pifs in
+ let my_vlan_pifs = List.filter (fun (_,prec) ->
prec.API.pIF_VLAN <> -1L) my_pifs in
+
+ let get_network_of_pif_underneath_vlan vlan_pif_ref =
+ let pif_underneath_vlan =
Helpers.get_pif_underneath_vlan ~__context vlan_pif_ref in
+ let network_of_pif_underneath_vlan = Db.PIF.get_network
~__context ~self:pif_underneath_vlan in
+ network_of_pif_underneath_vlan
+ in
+
+ let maybe_create_vlan_pif_for_me (master_pif_ref,
master_pif_rec) =
+ (* check to see if I have any existing pif(s) that for
the specified device, network, vlan... *)
+ let existing_pif = List.filter (fun
(my_pif_ref,my_pif_record) ->
+ (* Is my VLAN PIF that we're considering
(my_pif_ref) the one that corresponds to the master_pif we're considering
(master_pif_ref)? *)
+ true
+ && my_pif_record.API.pIF_network =
master_pif_rec.API.pIF_network
+ && my_pif_record.API.pIF_VLAN =
master_pif_rec.API.pIF_VLAN
+ && ((get_network_of_pif_underneath_vlan
my_pif_ref) =
+ (get_network_of_pif_underneath_vlan
master_pif_ref))
+ ) my_vlan_pifs in
+ (* if I don't have any such pif(s) then make one: *)
+ if List.length existing_pif = 0
+ then
+ begin
+ (* On the master, we find the pif, p,
that underlies the VLAN
+ * (e.g. "eth0" underlies "eth0.25")
and then find the network that p's on: *)
+ let
network_of_pif_underneath_vlan_on_master = get_network_of_pif_underneath_vlan
master_pif_ref in
+ match List.filter (fun (_,prec) ->
prec.API.pIF_network=network_of_pif_underneath_vlan_on_master ) my_pifs with
+ | [] -> () (* we have no PIF on which
to make the vlan; do nothing *)
+ | [(pif_ref,_)] -> (* this is the PIF
on which we want to base our vlan record; let's make it *)
+ ignore (Client.VLAN.create ~rpc
~session_id ~tagged_PIF:pif_ref
+
~tag:master_pif_rec.API.pIF_VLAN ~network:master_pif_rec.API.pIF_network)
+ | _ -> () (* this should never happen
cos we should never have more than one of _our_ pifs on the same nework *)
+ end
+ in
+ (* for each of the master's pifs, create a corresponding one on
this host if necessary *)
+ List.iter maybe_create_vlan_pif_for_me master_vlan_pifs
+ )
+
+let sync_slave_with_master ~__context () =
+ if Pool_role.is_master () then () (* if master do nothing *)
+ else begin
+ debug "resynchronising bonded and vlan pif records with pool
master";
+ try
+ (* Sync VLANs after bonds so we can add VLANs on top of
bonded interfaces (but not v.v.) *)
+ copy_bonds_from_master ~__context;
+ copy_vlans_from_master ~__context
+ with e -> (* Errors here are non-data-corrupting hopefully, so
we'll just carry on regardless... *)
+ error "Caught exception syncing PIFs from the master:
%s" (ExnHelper.string_of_exn e);
+ log_backtrace ()
+ end
+
diff -r 0330decaabcb ocaml/xapi/sync_networking.mli
--- /dev/null
+++ b/ocaml/xapi/sync_networking.mli
@@ -0,0 +1,18 @@
+(*
+ * Copyright (C) 2006-2009 Citrix Systems Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; version 2.1 only. with the special
+ * exception on linking described in file LICENSE.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *)
+(**
+ * @group Main Loop and Start-up
+ *)
+
+val sync_slave_with_master : __context:Context.t -> unit -> unit
diff -r 0330decaabcb ocaml/xapi/xapi.ml
--- a/ocaml/xapi/xapi.ml
+++ b/ocaml/xapi/xapi.ml
@@ -821,6 +821,7 @@
end;
Startup.run ~__context [
+ "Synchronising bonds/VLANs on slave with master", [],
Sync_networking.sync_slave_with_master ~__context;
"Initialise Monitor_rrds.use_min_max", [],
Monitor_rrds.update_use_min_max;
"Initialising licensing", [], handle_licensing;
"control domain memory", [ Startup.OnThread ], control_domain_memory;
diff -r 0330decaabcb ocaml/xapi/xapi_globs.ml
--- a/ocaml/xapi/xapi_globs.ml
+++ b/ocaml/xapi/xapi_globs.ml
@@ -342,7 +342,6 @@
let sync_crashdump_resynchronise = "sync_crashdump_resynchronise"
let sync_update_vms = "sync_update_vms"
let sync_remove_leaked_vbds = "sync_remove_leaked_vbds"
-let sync_copy_pifs_from_master = "sync_copy_pifs_from_master"
let sync_resynchronise_pif_currently_attached =
"sync_resynchronise_pif_currently_attached"
let sync_patch_update_db = "sync_patch_update_db"
let sync_pbd_reset = "sync_pbd_reset"
split-dbsync
Description: Text document
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