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samba-mirror/ctdb/tests/simple/21_ctdb_attach.sh
Martin Schwenke 3cb53a7a05 ctdb-tests: Wait to allow database attach/detach to take effect
Sometimes the detach test fails:

  Check detaching single test database detach_test1.tdb
  BAD: database detach_test1.tdb is still attached
  Number of databases:4
  dbid:0x5ae995ee name:detach_test4.tdb path:tests/var/simple/node.0/db/volatile/detach_test4.tdb.0
  dbid:0xd84cc13c name:detach_test3.tdb path:tests/var/simple/node.0/db/volatile/detach_test3.tdb.0
  dbid:0x8e8e8cef name:detach_test2.tdb path:tests/var/simple/node.0/db/volatile/detach_test2.tdb.0
  dbid:0xc62491f4 name:detach_test1.tdb path:tests/var/simple/node.0/db/volatile/detach_test1.tdb.0
  Number of databases:3
  dbid:0x5ae995ee name:detach_test4.tdb path:tests/var/simple/node.1/db/volatile/detach_test4.tdb.1
  dbid:0xd84cc13c name:detach_test3.tdb path:tests/var/simple/node.1/db/volatile/detach_test3.tdb.1
  dbid:0x8e8e8cef name:detach_test2.tdb path:tests/var/simple/node.1/db/volatile/detach_test2.tdb.1
  Number of databases:4
  dbid:0x5ae995ee name:detach_test4.tdb path:tests/var/simple/node.2/db/volatile/detach_test4.tdb.2
  dbid:0xd84cc13c name:detach_test3.tdb path:tests/var/simple/node.2/db/volatile/detach_test3.tdb.2
  dbid:0x8e8e8cef name:detach_test2.tdb path:tests/var/simple/node.2/db/volatile/detach_test2.tdb.2
  dbid:0xc62491f4 name:detach_test1.tdb path:tests/var/simple/node.2/db/volatile/detach_test1.tdb.2
  *** TEST COMPLETED (RC=1) AT 2019-04-27 03:35:40, CLEANING UP...

When issued from a client, the detach control re-broadcasts itself
asynchronously to all nodes and then returns success.  The controls to
some nodes to do the actual detach may still be in flight when success
is returned to the client.  Therefore, the test should wait for a few
seconds to allow the asynchronous controls to complete.

The same is true for the attach control, so workaround the problem in
the attach test too.

An alternative is to make the attach and detach controls synchronous
by avoiding the broadcast and waiting for the results of the
individual controls sent to the nodes.  However, a simple
implementation would involve adding new nested event loops.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13924

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
2019-05-07 05:45:35 +00:00

136 lines
2.9 KiB
Bash
Executable File

#!/bin/bash
test_info()
{
cat <<EOF
Verify the operation of 'ctdb attach' command.
Prerequisites:
* An active CTDB cluster with at least 2 active nodes.
Steps:
1. Verify that the status on all of the ctdb nodes is 'OK'.
2. Shut down one of the nodes
3. Attach test databases
4. Start shutdown node
5. Verify that the databases are attached.
6. Restart one of the nodes
7. Verify that the databses are attached.
Expected results:
* Command 'ctdb attach' command successfully attaches databases.
EOF
}
. "${TEST_SCRIPTS_DIR}/integration.bash"
ctdb_test_init
set -e
cluster_is_healthy
######################################################################
try_command_on_node 0 "$CTDB listnodes -X | wc -l"
numnodes="$out"
lastnode=$(( numnodes - 1 ))
######################################################################
# Confirm that the database is attached with appropriate flags
check_db_once ()
{
local pnn="$1"
local db="$2"
try_command_on_node "$pnn" $CTDB getdbmap
if grep -qF "name:${db}" "$outfile" >/dev/null ; then
return 0
else
return 1
fi
}
check_db ()
{
local pnn="$1"
local db="$2"
local flag="$3"
local flags
echo "Waiting until database ${db} is attached on node ${pnn}"
wait_until 10 check_db_once "$pnn" "$db"
flags=$(awk -v db="$db" '$2 == "name:" db {print $4}' "$outfile")
if [ "$flags" = "$flag" ]; then
echo "GOOD: db ${db} attached on node ${pnn} with flag $flag"
else
echo "BAD: db ${db} attached on node ${pnn} with wrong flag"
cat "$outfile"
exit 1
fi
}
######################################################################
testdb1="test_volatile.tdb"
testdb2="test_persistent.tdb"
testdb3="test_replicated.tdb"
test_node="0"
echo "Shutting down node $test_node"
stop_ctdb_1 "$test_node"
sleep 1
wait_until_node_has_status 1 recovered
try_command_on_node -v 1 $CTDB status
echo "Create test databases"
try_command_on_node 1 $CTDB attach "$testdb1"
try_command_on_node 1 $CTDB attach "$testdb2" persistent
try_command_on_node 1 $CTDB attach "$testdb3" replicated
echo
echo "Checking if database is attached with correct flags"
for node in $(seq 0 $lastnode) ; do
if [ $node -ne $test_node ] ; then
check_db $node $testdb1 ""
check_db $node $testdb2 PERSISTENT
check_db $node $testdb3 REPLICATED
fi
done
######################################################################
echo
echo "Start node $test_node"
start_ctdb_1 "$test_node"
sleep 1
wait_until_ready
echo
echo "Checking if database is attached with correct flags"
check_db $test_node $testdb1 ""
check_db $test_node $testdb2 PERSISTENT
check_db $test_node $testdb3 REPLICATED
######################################################################
echo
echo "Restarting node $test_node"
restart_ctdb_1 "$test_node"
sleep 1
wait_until_ready
echo
echo "Checking if database is attached with correct flags"
check_db $test_node $testdb1 ""
check_db $test_node $testdb2 PERSISTENT
check_db $test_node $testdb3 REPLICATED