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These tests simulate a dead node rather than a CTDB failure, so drop IP addresses when killing a "node" to avoid problems with duplicates. To cope with a CTDB failure a watchdog would be needed to ensure that the public IPs are dropped when CTDB dies. Let's not do that now. Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com> Autobuild-User(master): Martin Schwenke <martins@samba.org> Autobuild-Date(master): Fri Dec 5 23:29:39 CET 2014 on sn-devel-104
83 lines
2.1 KiB
Bash
Executable File
83 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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test_info()
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{
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cat <<EOF
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Verify that a mounted NFS share is still operational after failover.
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We mount an NFS share from a node, write a file via NFS and then
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confirm that we can correctly read the file after a failover.
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Prerequisites:
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* An active CTDB cluster with at least 2 nodes with public addresses.
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* Test must be run on a real or virtual cluster rather than against
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local daemons.
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* Test must not be run from a cluster node.
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Steps:
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1. Verify that the cluster is healthy.
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2. Select a public address and its corresponding node.
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3. Select the 1st NFS share exported on the node.
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4. Mount the selected NFS share.
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5. Create a file in the NFS mount and calculate its checksum.
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6. Kill CTDB on the selected node.
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7. Read the file and calculate its checksum.
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8. Compare the checksums.
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Expected results:
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* When a node is disabled the public address fails over and it is
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possible to correctly read a file over NFS. The checksums should be
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the same before and after.
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EOF
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}
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. "${TEST_SCRIPTS_DIR}/integration.bash"
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set -e
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ctdb_test_init "$@"
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ctdb_test_check_real_cluster
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cluster_is_healthy
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# Reset configuration
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ctdb_restart_when_done
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nfs_test_setup
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echo "Create file containing random data..."
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dd if=/dev/urandom of=$nfs_local_file bs=1k count=1
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original_sum=$(sum $nfs_local_file)
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[ $? -eq 0 ]
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gratarp_sniff_start
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echo "Killing node $test_node"
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try_command_on_node $test_node $CTDB getpid
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pid=${out#*:}
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# We need to be nasty to make that the node being failed out doesn't
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# get a chance to send any tickles or doing anything else clever. IPs
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# also need to be dropped because we're simulating a dead node rather
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# than a CTDB failure. To properly handle a CTDB failure we would
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# need a watchdog to drop the IPs when CTDB disappears.
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try_command_on_node -v $test_node "kill -9 $pid ; $CTDB_TEST_WRAPPER drop_ips ${test_node_ips}"
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wait_until_node_has_status $test_node disconnected
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gratarp_sniff_wait_show
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new_sum=$(sum $nfs_local_file)
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[ $? -eq 0 ]
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if [ "$original_md5" = "$new_md5" ] ; then
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echo "GOOD: file contents unchanged after failover"
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else
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echo "BAD: file contents are different after failover"
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testfailures=1
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fi
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