memtier_benchmark doest not exit as expected

[ymjzxw]

In my test enviroment, I got the following outputs:
$ ./memtier_benchmark -s 192.168.111.126 -p 2001 -n 1 -c 1 -t 2 -d 20000 --cluster-mode
[RUN #1] Preparing benchmark client...
[RUN #1] Launching threads now...
[RUN #1 100%, 0 secs] 2 threads: 2 ops, 6557 (avg: 6557) ops/sec, 125.38MB/sec (avg: 125.38MB/sec), 0.39 (avg: 0.39) msec latency

It will hang here like forever. By reading the code, it seems it should exit and output like this:
[RUN #1] Preparing benchmark client...
[RUN #1] Launching threads now...
[RUN #1 100%, 0 secs] 0 threads: 2 ops, 0 (avg: 6756) ops/sec, 0.00KB/sec (avg: 129.20MB/sec), 0.00 (avg: 0.37) msec latency

2 Threads
1 Connections per thread
1 Requests per client

ALL STATS

Type Ops/sec Hits/sec Misses/sec MOVED/sec ASK/sec Latency KB/sec

Sets 6779.66 --- --- 0.00 0.00 0.37200 132746.29
Gets 0.00 0.00 0.00 0.00 0.00 0.00000 0.00
Waits 0.00 --- --- --- --- 0.00000 ---
Totals 6779.66 0.00 0.00 0.00 0.00 0.37200 132746.29

Request Latency Distribution
Type <= msec Percent

SET 0.350 50.00
SET 0.390 100.00

Why? My test environment is cluster mode.

[vasiloeth]

Following up on this issue... any updates?
I'm facing the same problem

[lc0305]

Seems like the fix was removed from the mainline again. Any reason for this or was this by accident? #106

[YaacovHazan]

Hi, @lc0305 the line was removed when we handled "fix issue #128 zeros in ouptut".
Do you still encounter the above "memtier_benchmark doest not exit as expected #94"?

[lc0305]

Yes it did not exit for me in cluster-mode when benchmarking against a remote host, but did exit when benchmarking against localhost.
I added the line from the previous fix and recompiled memtier and it fixed the issue for me.

[YaacovHazan]

With the same command-line arguments? if not, can you share please the command line that you used?

[lc0305]

It did not exit with the default arguments except for --cluster-mode -s -p set to the remote IP address and port.
benchmark ran on macOS 11
cluster ran on Debian 10 (Kernel 4.19)

[YaacovHazan]

@lc0305 can you please, run it with --debug and share the output?

[Teddyhoang]

Get the same problem. Here the result with --debug

[YaacovHazan]

@Teddyhoang not sure I got it... it seems that in your example the test exit as expected, no?

[molian6]

Hi there, I'm running into the same problem with it didn't exit running cluster mode. It stuck at 100%. Any idea on what causes it and potential fixes?

Thanks!

[YaacovHazan]

@molian6, which version do you use? The new 2.0.0 version includes a fix around cluster mode: #205

[molian6]

I'm pulling the redislabs/memtier_benchmark:edge image, and looks like it's 2.0.0

docker run -it redislabs/memtier_benchmark:edge --version
memtier_benchmark 2.0.0
Copyright (C) 2011-2022 Redis Ltd.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

[YaacovHazan]

@molian6 can you run it with --debug and paste the output?