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by default ctdb does not monitor for OOM.
to enable this you need to uncomment the CTDB_MONITOR_FREE_MEMORY line in /etc/sysconfig/ctdb and specify the amount in MByte free that will trigger OOM and cause ctdb to shutdown the node
(This used to be ctdb commit 35627c7450a03f36a353c3dd7cce31ce3433a7ff)
IF lvs has been configured, check that the ipvsadm package has also
been installed since we depend on it.
If not, log an error and return 1
(This used to be ctdb commit 506174bbc47f1176122be2e55099149e3db27d57)
into a case and add an arm for ib*) (infiniband interfaces)
Dont try using ethtool on ib devices
(mii_tool doesnt work either)
IB does have a command ibv_devinfo which can tell whether a physical port
is up or not but it seems nontrivial to map this into a interface name such as ib0
(This used to be ctdb commit ab6bd25542946a732b4378f5476edfb466d6c000)
when monitoring that all nfs shares are available, allow both ' ' and
'\t' characters to separate the exported directory from the options
in /etc/exports
(This used to be ctdb commit ac6cfe9de0acdcf9461068684fa890504454aae4)
check if mountd is running during monitoring and if it is not, try to restart it
(This used to be ctdb commit 3d4b74669164b519398aeeacd59714f1e3884eff)
to have one single public ip address for the entire cluster.
this ip address is attached to lo on all nodes but only the recmaster
will respond to arp requests for this address.
the recmaster then runs an ipmux process that will pass any incoming
packets to this ip address onto the other node sin the cluster based on
the ip address of the client host
to use this feature one must
1, have one fixed ip address in the customers network attached
permanently attached to an interface
2, set CTDB_PUBLI_INTERFACE=
to specify on which interface the clients attach to the node
3, CTDB_SINGLE_PUBLI_IP=ip-address
to specify which ipaddress should be the "single public ip address"
to test with only one single client, attach several ip addresses to
the client and ping the public address from the client with different -I
options. look in network trace to see to which node the packet is
passed onto.
(This used to be ctdb commit 50d648c95e4e6d7c2867a034c2b550086d853320)
set the node initially unhealthy and let the status monitoring bring the node online.
This fixes a problem with winbindd, where it refused to start because secrets.tdb was not populated
but we could not populate ctdbd, because the net command would not run while ctdbd was still doing startup
and thus frozen
(This used to be ctdb commit 3a001b793dd76fb96addf1e2ccb74da326fbcfbc)
- put removed IPs on loopback with scope host
- check for nul strings in ethtool call
;
(This used to be ctdb commit e2df1d6d08e67a36ff05a590a34c56e900741287)
a bool that specifies whether the ip was held by a loopback adaptor or
not
the name of the interface where the ip was held
when we release an ip address from an interface, move the ip address
over to the loopback interface
when we release an ip address after we have move it onto loopback,
use 60.nfs to kill off the server side (the local part) of the tcp
connection so that the tcp connections dont survive a
failover/failback
61.nfstickle, since we kill hte tcp connections when we release an ip
address we no longer need to restart the nfs service in 61.nfstickle
update ctdb_takeover to use the new signature for ctdb_sys_have_ip
when we add a tcp connection to kill in ctdb_killtcp_add_connection()
check if either the srouce or destination address match a known public
address
(This used to be ctdb commit f9fd2a4719c50f6b8e01d0a1b3a74b76b52ecaf3)
10.interfaces startsup
this setting makes the system only respond to APR requests from the NIC
where the ip address is tied to and adds to the
"principle of least surprise" when using multihoming servers
(This used to be ctdb commit 39ddf347dc45f599964a4c17e67e71faed00e544)
