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https://github.com/samba-team/samba.git
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a7b8ee87fe
Signed-off-by: Amitay Isaacs <amitay@gmail.com> Reviewed-by: Martin Schwenke <martin@meltin.net>
108 lines
2.7 KiB
Bash
Executable File
108 lines
2.7 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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Older style of recovery using PULL_DB and PUSH_DB controls tries to
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construct a single large marshall buffer for all the records in the
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database. However, this approach is problematic as talloc restricts the
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maximum size of buffer to 256M. Also, trying to construct and send large
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buffers is inefficient and can cause CTDB daemon to be tied up for long
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periods of time.
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Instead new style recovery is introduced using DB_PULL and
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DB_PUSH_START/DB_PUSH_CONFIRM controls. This sends the records in
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batches of ~RecBufferSizeLimit in size at a time.
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Expected results:
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* The recovery should complete successfully
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EOF
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}
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. "${TEST_SCRIPTS_DIR}/integration.bash"
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ctdb_test_init "$@"
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set -e
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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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#
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# Main test
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#
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TEST1DB="large_persistent_db.tdb"
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TEST2DB="large_volatile_db.tdb"
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RECDATA=$(onnode 0 mktemp)
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# Create a persistent database to test
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echo "create persistent test database $TEST1DB"
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try_command_on_node 0 $CTDB attach $TEST1DB persistent
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# Wipe Test database
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echo "wipe test database $TEST1DB"
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try_command_on_node 0 $CTDB wipedb $TEST1DB
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# Create dummy record data
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echo "creating dummy record data"
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onnode 0 dd if=/dev/urandom of=$RECDATA bs=10K count=1
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# Add 345 records
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echo "Adding 345 records"
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for i in $(seq 1 345) ; do
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try_command_on_node 0 $CTDB pstore $TEST1DB record$i $RECDATA || exit 1
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done
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# Create a volatile database to test
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echo "create volatile test database $TEST2DB"
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try_command_on_node 0 $CTDB attach $TEST2DB
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# Wipe Test database
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echo "wipe test database $TEST2DB"
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try_command_on_node 0 $CTDB wipedb $TEST2DB
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# Create dummy record data
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v1="1234567890"
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v2="$v1$v1$v1$v1$v1$v1$v1$v1$v1$v1"
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v3="$v2$v2$v2$v2$v2$v2$v2$v2$v2$v2"
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# Add 1234 records
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echo "Adding 1234 records"
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for i in $(seq 1 1234) ; do
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try_command_on_node 0 $CTDB writekey $TEST2DB record$i $v3 || exit 1
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done
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echo "Find out which node is recmaster"
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try_command_on_node 0 $CTDB recmaster
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recmaster="$out"
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# Set RecBufferSizeLimit to 10000
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try_command_on_node $recmaster $CTDB setvar RecBufferSizeLimit 10000
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# Do a recovery
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echo "force recovery"
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try_command_on_node 0 $CTDB recover
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wait_until_node_has_status 0 recovered 30
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# check that there are correct number of records
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num_records=$(db_ctdb_cattdb_count_records 0 $TEST1DB)
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if [ $num_records = "345" ] ; then
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echo "OK: persistent database recovered correctly"
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else
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echo "BAD: persistent database ended up with $num_records of 345 records"
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exit 1
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fi
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num_records=$(db_ctdb_cattdb_count_records 0 $TEST2DB)
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if [ $num_records = "1234" ] ; then
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echo "OK: volatile database recovered correctly"
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else
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echo "BAD: volatile database ended up with $num_records of 1234 records"
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exit 1
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fi
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