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onnode: update algorithm for finding nodes file.

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2 changes:

* If a relative nodes file is specified via -f or $CTDB_NODES_FILE but
  this file does not exist then try looking for the file in /etc/ctdb
  (or $CTDB_BASE if set).

* If a nodes file is specified via -f or $CTDB_NODES_FILE but this
  file does not exist (even when checked as per above) then do not
  fall back to /etc/ctdb/nodes ((or $CTDB_BASE if set).  The old
  behaviour was surprising and hid errors.

Signed-off-by: Martin Schwenke <martin@meltin.net>

(This used to be ctdb commit 6b5a5bb62369284585057caf09f05d2d5e3b9927)
This commit is contained in:
Martin Schwenke 2010-01-21 13:40:03 +11:00
parent 14b3c37d9d
commit 9660f9c887
1 changed files with 15 additions and 2 deletions
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17
ctdb/tools/onnode
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@ -231,8 +231,21 @@ get_nodes ()
if [ -n "$CTDB_NODES_SOCKETS" ] ; then
all_nodes="$CTDB_NODES_SOCKETS"
else
[ -e "$CTDB_NODES_FILE" ] || CTDB_NODES_FILE="${ctdb_base}/nodes"
all_nodes=$(sed -e 's@#.*@@g' -e 's@ *@@g' -e 's@^$@#DEAD@' $CTDB_NODES_FILE)
local f="${ctdb_base}/nodes"
if [ -n "$CTDB_NODES_FILE" ] ; then
f="$CTDB_NODES_FILE"
if [ ! -e "$f" -a "${f#/}" = "$f" ] ; then
# $f is relative, try in $ctdb_base
f="${ctdb_base}/${f}"
fi
fi
if [ ! -r "$f" ] ; then
echo "${prog}: unable to open nodes file \"${f}\"" >&2
exit 1
fi
all_nodes=$(sed -e 's@#.*@@g' -e 's@ *@@g' -e 's@^$@#DEAD@' "$f")
fi
local nodes=""