redict/tests/unit/replybufsize.tcl
ranshid 9b15dd288e
Introduce debug command to disable reply buffer resizing (#10360)
In order to resolve some flaky tests which hard rely on examine memory footprint.
we introduce the following fixes:

# Fix in client-eviction test - by @yoav-steinberg 
Sometime the libc allocator can use different size client struct allocations.
this may cause unexpected memory calculations to fail the test.

# Introduce new DEBUG command for disabling reply buffer resizing
In order to eliminate reply buffer resizing during specific tests.
we introduced the ability to disable (and enable) the resizing cron job

Co-authored-by: yoav-steinberg yoav@redislabs.com
2022-03-01 14:40:29 +02:00

47 lines
1.6 KiB
Tcl

proc get_reply_buffer_size {cname} {
set clients [split [string trim [r client list]] "\r\n"]
set c [lsearch -inline $clients *name=$cname*]
if {![regexp rbs=(\[a-zA-Z0-9-\]+) $c - rbufsize]} {
error "field rbs not found in $c"
}
return $rbufsize
}
start_server {tags {"replybufsize"}} {
test {verify reply buffer limits} {
# In order to reduce test time we can set the peak reset time very low
r debug replybuffer peak-reset-time 100
# Create a simple idle test client
variable tc [redis_client]
$tc client setname test_client
# make sure the client is idle for 1 seconds to make it shrink the reply buffer
wait_for_condition 10 100 {
[get_reply_buffer_size test_client] >= 1024 && [get_reply_buffer_size test_client] < 2046
} else {
set rbs [get_reply_buffer_size test_client]
fail "reply buffer of idle client is $rbs after 1 seconds"
}
r set bigval [string repeat x 32768]
# In order to reduce test time we can set the peak reset time very low
r debug replybuffer peak-reset-time never
wait_for_condition 10 100 {
[$tc get bigval ; get_reply_buffer_size test_client] >= 16384 && [get_reply_buffer_size test_client] < 32768
} else {
set rbs [get_reply_buffer_size test_client]
fail "reply buffer of busy client is $rbs after 1 seconds"
}
# Restore the peak reset time to default
r debug replybuffer peak-reset-time reset
$tc close
} {0} {needs:debug}
}