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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)
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)
This can cause a memory leak if the call is terminated before we have managed to respond to the client.
(and the call is talloc_free()d but the data is still hanging off ctdb)
instead we must talloc_steal() the data and hang it off the call structure to avoid the memory leak.
In order to do this we must also change the call structure that is passed into ctdb_call_local() to be allocated through talloc().
This structure was previously either a static variable, or an element of a larger talloc()ed structure (ctdb_call_state or ctdb_client_call_state) so
we must change all creations of a ctdb_call into explicitely creating it through talloc()
(This used to be ctdb commit 4becf32aea088a25686e8bc330eb47d85ae0ef8f)
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)
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)
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)
multiple public addresses spread across multiple interfaces on each
node.
this is a massive patch since we have previously made the assumtion that
we only have one public address per node.
get rid of the public_interface argument. the public addresses file
now explicitely lists which interface the address belongs to
(This used to be ctdb commit 462ebbc791e906a6b874c862defea43235597ca8)
the shutdown command
and return success to the caller if the _send() was successful
(This used to be ctdb commit 6bacaf8c7a96044708a6eda10cc8576adb7f5f79)
controls to register/unregister/check a server id.
a server id consists of TYPE:VNN:ID where type is specific to the
application. VNN is the node where the serverid was registered and ID
might be a node unique identifier such as a pid or similar.
Clients can register a server id for themself at the local ctdb daemon.
When a client dissappears or when the domain socket connection for the
client drops then any and all server ids registered across that domain
socket will also be automatically removed from the store.
clients can register as many server_ids as they want at the same time
but each TYPE:VNN:ID must be globally unique.
Clients have the option of explicitely unregister a server id by using
the UNREGISTER control.
Registration and unregistration can only be done by clients to the local
daemon. clients can not register their server id to a remote node.
clients can check if a server id does exist on any ctdb node in the
network by using the check control
(This used to be ctdb commit d44798feec26147c5cc05922cb2186f0ef0307be)
passing it as a parameter we set the callback function explicitely from
the caller if the ..._send() function returned a valid state pointer.
(This used to be ctdb commit aa939570662786455f63299b62c99882cff29d42)
callback function which is called upon completion (or timeout) of the
control.
modify scanning of recmaster in the monitoring_cluster code to try the
api out
(This used to be ctdb commit c37843f1d97b169afec910e7ddb4e5ac12c3015c)
struct so that if we timeout a control we can print debug info such as
what opcode failed and to which node
we dont need the *status parameter to ctdb_client_control_state
create async versions of the getrecmaster control
pass a memory context to getrecmaster
(This used to be ctdb commit 558b680c82f830fba82c283c78c2de8a0b150b75)
ctdb_call() may pass a null pointer to _recv() and this would cause a
segfault.
fortunately there appears there are no critical users for this codepath
right now so the risk was more theoretical IF clients start using this
call it coult segfault.
change ctdb_control() to become fully async so we later can make
recovery daemon do the expensive controls to nodes in parallell instead
of in sequence
(This used to be ctdb commit 379789cda6ef049f389f10136aaa1b37a4d063a9)
there is an array for each node/public address that contains tcp tickles
we send a TCP_ADD as a broadcast to all nodes when a client is added
if tcp tickles are removed, they are only removed immediately from the
local node.
once every 20 seconds a node will push/broadcast out the tickle list for
all public addresses it manages. this will remove any deleted tickles
from the remote nodes
(This used to be ctdb commit e3c432a915222e1392d91835bc7a73a96ab61ac9)
- added DatabaseHashSize tunable
- added logging of events inside recovery (for timing)
(This used to be ctdb commit 3593cdb928b91e217faf1b3c537fa28dc82cdace)
