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ctdb-doc: Add support for migrating tunables to ctdb.conf options

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This will become common, so will be useful to have support for.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13589

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This commit is contained in:
Martin Schwenke 2018-08-20 19:09:45 +10:00 committed by Amitay Isaacs
parent 43adcd717c
commit 8ddfc26d79
1 changed files with 44 additions and 1 deletions
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43
ctdb/doc/examples/config_migrate.sh
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@ -160,6 +160,39 @@ check_ctdb_conf_option ()
[ -n "$_out" ]
}
# Convert a ctdbd.conf tunable option into a ctdb.conf section+opt
#
# The difference between this and get_ctdb_conf_option() is that only
# the tunable part of the option is passed as opt and it is matched
# case-insensitively.
get_ctdb_conf_tunable_option ()
{
_opt="$1"
_val="$2"
awk -v opt="${_opt}" -v val="${_val}" \
'tolower($3) == tolower(opt) {
if (!$4 || !val || (val == 0 ? 0 : 1) == $4) {
if ($5) {
print $1, $2, $5
} else {
print $1, $2, val
}
}
}' <<EOF
EOF
}
# Check if a tunable will convert to a ctdb.conf option
check_ctdb_conf_tunable_option ()
{
_opt="$1"
_out=$(get_ctdb_conf_tunable_option "$_opt" "")
[ -n "$_out" ]
}
# Check if an option has been removed
check_removed_option ()
{
@ -508,7 +541,14 @@ build_ctdb_conf ()
list_options |
while read -r _opt _val ; do
case "$_opt" in
CTDB_SET_*)
_opt="${_opt#CTDB_SET_}"
_out=$(get_ctdb_conf_tunable_option "$_opt" "$_val")
;;
*)
_out=$(get_ctdb_conf_option "$_opt" "$_val")
esac
if [ -z "$_out" ] ; then
continue
fi
@ -563,6 +603,9 @@ build_ctdb_tunables ()
list_tunables |
while read -r _var _val ; do
if check_ctdb_conf_tunable_option "$_var" ; then
continue
fi
if ! check_valid_tunable "$_var" ; then
continue
fi