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#!/usr/bin/env bash
# Confirm that traverses of volatile databases work as expected
# This is a very simple example. It writes a single record, updates it
# on another node and then confirms that the correct value is found when
# traversing. It then repeats this after removing the LMASTER role from
# the node where the value is updated.
. "${TEST_SCRIPTS_DIR}/integration.bash"
set -e
ctdb_test_init
#
# Main test
#
TESTDB="traverse_db.tdb"
echo "create volatile test database $TESTDB"
try_command_on_node 0 $CTDB attach "$TESTDB"
echo "wipe test database $TESTDB"
try_command_on_node 0 $CTDB wipedb "$TESTDB"
echo "write foo=bar0 on node 0"
try_command_on_node 0 $CTDB writekey "$TESTDB" "foo" "bar0"
echo "write foo=bar1 on node 1"
try_command_on_node 1 $CTDB writekey "$TESTDB" "foo" "bar1"
echo
check_db_num_records ()
{
local node="$1"
local db="$2"
local n="$3"
echo "Checking on node ${node} to ensure ${db} has ${n} records..."
try_command_on_node "$node" "${CTDB} catdb ${db}"
num=$(sed -n -e 's|^Dumped \(.*\) records$|\1|p' "$outfile")
if [ "$num" = "$n" ] ; then
echo "OK: Number of records=${num}"
echo
else
echo "BAD: There were ${num} (!= ${n}) records"
cat "$outfile"
exit 1
fi
}
check_db_num_records 0 "$TESTDB" 1
check_db_num_records 1 "$TESTDB" 1
cat <<EOF
Again, this time with 10 records, rewriting 5 of them on the 2nd node
EOF
echo "wipe test database $TESTDB"
try_command_on_node 0 $CTDB wipedb "$TESTDB"
for i in $(seq 0 9) ; do
k="foo${i}"
v="bar${i}@0"
echo "write ${k}=${v} on node 0"
try_command_on_node 0 "${CTDB} writekey ${TESTDB} ${k} ${v}"
done
for i in $(seq 1 5) ; do
k="foo${i}"
v="bar${i}@1"
echo "write ${k}=${v} on node 1"
try_command_on_node 1 "${CTDB} writekey ${TESTDB} ${k} ${v}"
done
check_db_num_records 0 "$TESTDB" 10
check_db_num_records 1 "$TESTDB" 10
cat <<EOF
Again, this time with lmaster role off on node 1
EOF
echo "wipe test database $TESTDB"
try_command_on_node 0 $CTDB wipedb "$TESTDB"
echo "switching off lmaster role on node 1"
try_command_on_node 1 $CTDB setlmasterrole off
try_command_on_node -v 1 $CTDB getcapabilities
wait_until_node_has_status 1 notlmaster 10 0
echo "write foo=bar0 on node 0"
try_command_on_node 0 $CTDB writekey "$TESTDB" "foo" "bar0"
echo "write foo=bar1 on node 1"
try_command_on_node 1 $CTDB writekey "$TESTDB" "foo" "bar1"
echo
check_db_num_records 0 "$TESTDB" 1
check_db_num_records 1 "$TESTDB" 1
if grep -q "^data(4) = \"bar1\"\$" "$outfile" ; then
echo "OK: Data from node 1 was returned"
else
echo "BAD: Data from node 1 was not returned"
exit 1
fi
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