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This enhances the framework for sending tcp tickles to be able to send ipv6 tickles as well.
Since we can not use one single RAW socket to send both handcrafted ipv4 and ipv6 packets, instead of always opening TWO sockets, one ipv4 and one ipv6 we get rid of the helper ctdb_sys_open_sending_socket() and just open (and close) a raw socket of the appropriate type inside ctdb_sys_send_tcp().
We know which type of socket v4/v6 to use based on the sin_family of the destination address.
Since ctdb_sys_send_tcp() opens its own socket we no longer nede to pass a socket
descriptor as a parameter. Get rid of this redundant parameter and fixup all callers.
(This used to be ctdb commit 406a2a1e364cf71eb15e5aeec3b87c62f825da92)
This allows us to use the async framework also for controls that return
outdata.
Add a "capabilities" field to the ctdb_node structure. This field is
only initialized and kept valid inside the recovery daemon context and not
inside the main ctdb daemon.
change the GET_CAPABILITIES control to return the capabilities in outdata instead of in the res return variable.
When performing a recovery inside the recovery daemon, read the capabilities from all connected nodes and update the ctdb->nodes list of nodes.
when building the new vnnmap after the database rebuild in recovery, do not include any nodes which lack the LMASTER capability in the new vnnmap.
Unless there are no available connected node that sports the LMASTER capability in which case we let the local node (recmaster) take on the lmaster role temporarily (i.e. become a member of the vnnmap list)
(This used to be ctdb commit 0f1883c69c689b28b0c04148774840b2c4081df6)
Define two capabilities :
can be recmaster
can be lmaster
Default both capabilities to YES
Update the ctdb tool to read capabilities off a node
(This used to be ctdb commit 50f1255ea9ed15bb8fa11cf838b29afa77e857fd)
If no other node is hosting this public ip at the moment, then assign it immediately to the current node.
(This used to be ctdb commit a63825e32658b36e0964584758b9a276c18056b8)
this collects all public addresses from all nodes and presents the public ips
for the entire cluster
(This used to be ctdb commit cbf79b2158ab21a58aef967e89f0bd60890a7972)
this collects all public addresses from all nodes and presents the public ips
for the entire cluster
(This used to be ctdb commit 0a4e667f42c6fb23be13651f7b0d0a545a49900b)
and a ctdb command to pull the talloc memory map from a recovery daemon
ctdb rddumpmemory
(This used to be ctdb commit d23950be7406cf288f48b660c0f57a9b8d7bdd05)
The controls only modify the runtime setting of which public addresses a node
can server and does not modify /etc/ctdb/public_addresses.
To make the change permanent you also need to edit /etc/ctdb/public_addresses
manually.
After ip addresses have been added/deleted you need to invoke a recovery
for the ip addresses to be redistributed.
(This used to be ctdb commit f8294d103fdd8a720d0b0c337d3973c7fdf76b5c)
Add back the controls to enable/disable monitoring we used to have for debugging but removed a while ago
(This used to be ctdb commit 8477f6a079e2beb8c09c19702733c4e17f5032fe)
Vacumming used to delete one record at a time on all nodes, that was
m*n behaviour and would require a huge storm of ctdb->ctdb controls and just wouldnt scale at all.
The new vacuming process collects all records to be deleted locally and then only sends 1 control to the other nodes. This control contains a list of all records to be deleted.
(This used to be ctdb commit 9e625ece19a91f362c9539fa73b6b2108f0d9c53)
ctdb moveip <IPADDRESS> <NODE>
which can be used to manually fail an ip address over to a specific node.
This can only be used if DeteministicIPs are disabled and also only if NoIPFailback is enabled.
(This used to be ctdb commit ffee062b7e26a6aa6ad254edb58399040ecaa542)
add a new control that causes the node to drop the current nodes list
and reread it from the nodes file.
During this operation, the node will also drop the tcp layer and restart it.
When we drop the tcp layer, by talloc_free()ing the ctcp structure
add a destructor to ctcp so that we also can clean up and remove the references in the ctdb structure to the transport layer
add two new commands for the ctdb tool.
one to list all nodes in the nodesfile and the second a command to trigger a node to drop the transport and reinitialize it with the nde nodes file
(This used to be ctdb commit 4bc20ac73e9fa94ffd43cccb6eeb438eeff9963c)
memory tree to stdout. This is much more useful than putting it in the log, and also fixes
a bug where the pipe would overflow internally and cause ctdbd to lockup
(This used to be ctdb commit e236979e2162d9bd7a495086342168a696cf76c5)
ctdb vacuum : vacuums all the databases, deleting any zero length
ctdb records
ctdb repack : repacks all the databases, resulting in a perfectly
packed database with no freelist entries
(This used to be ctdb commit 3532119c84ab3247051ed6ba21ba3243ae2f6bf4)
ctdb_recoverd.c
Always handle banning/unbanning locally on the node that is being
banned/unbanned instead of on the recovery master.
This means that if a ban request comes in to the recovery master for a
remote node, we pass the request on to the remote node instead of
setting up the ban and ban timeouts locally.
ctdb.c
send ban/unban requests to the node being banned/unbanned instead of to
the recmaster
(This used to be ctdb commit 880dd9f5fd0b91e450da93e195cc5c62cb1dcd6e)
monitoring should always be enabled
(though a node may want to temporarily disable running the "monitor"
event scripts but can do so internally without the need for this
control)
(This used to be ctdb commit e3a33618026823e6af845fd8513cddb08e6b5584)
