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--source include/have_rocksdb.inc
# Attempt to set the value - this should generate a warning as we can't set it to or from 0
SET @@global.rocksdb_rate_limiter_bytes_per_sec = 10000;
# Now shut down and come back up with the rate limiter enabled and retest setting the variable
# Write file to make mysql-test-run.pl expect the "crash", but don't restart the
# server until it is told to
--let $_expect_file_name= `select regexp_replace(@@tmpdir, '^.*/','')`
--let $_expect_file_name= $MYSQLTEST_VARDIR/tmp/$_expect_file_name.expect
--exec echo "wait" >$_expect_file_name
# Send shutdown to the connected server and give it 10 seconds to die before
# zapping it
shutdown_server;
# Attempt to restart the server with the rate limiter on
--exec echo "restart:--rocksdb_rate_limiter_bytes_per_sec=10000" >$_expect_file_name
--sleep 5
# Wait for reconnect
--enable_reconnect
--source include/wait_until_connected_again.inc
--disable_reconnect
# The valid_values table lists the values that we want to make sure that the system will allow
# us to set for rocksdb_rate_limiter_bytes_per_sec
CREATE TABLE valid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO valid_values VALUES(1), (1000), (1000000), (1000000000), (1000000000000);
# The invalid_values table lists the values that we don't want to allow for the variable
CREATE TABLE invalid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO invalid_values VALUES('\'aaa\''), (3.14);
# Test all the valid and invalid values
--let $sys_var=ROCKSDB_RATE_LIMITER_BYTES_PER_SEC
--let $session=0
--source include/rocksdb_sys_var.inc
DROP TABLE valid_values;
DROP TABLE invalid_values;
# Zero is an invalid value if the rate limiter is turned on, but it won't be rejected by the
# SET command but will generate a warning.
# Attempt to set the value to 0 - this should generate a warning as we can't set it to or from 0
SET @@global.rocksdb_rate_limiter_bytes_per_sec = 0;
# Attempt to set the value to -1 - this should first truncate to 0 and then generate a warning as
# we can't set it to or from 0
SET @@global.rocksdb_rate_limiter_bytes_per_sec = -1;
# Restart the server without the rate limiter
--exec echo "wait" >$_expect_file_name
shutdown_server;
--exec echo "restart" >$_expect_file_name
--sleep 5
# Wait for reconnect
--enable_reconnect
--source include/wait_until_connected_again.inc
--disable_reconnect
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