bergerch
commented
8 months ago Hello!
Personally, I think everything looks fine.
Note that during the execution of Shadow, there might be multiple warnings regarding not implemented syscalls. These are usually no problem at all. Apart from that some events which should be of level [info] seem to be reported as [error] like
2024-02-21T12:09:12.338Z [error] : childprocess: ** Starting Shadow v2.2.0 with GLib v2.72.4
But there is no need to worry here either! :-)
Just from seeing your Client and Replica Log files, the system did sucessfully reach consensus on several requests. For instance:
[2m2000-01-01T00:00:03.002800Z [0m [32m INFO [0m [2mbench_client [0m [2m: [0m RPS: 16200 [2m2000-01-01T00:00:03.002800Z [0m [32m INFO [0m [2mbench_client [0m [2m: [0m LAG: 42
means the client achieved a throughput of 16200 requests per second (RPS) and a latency of 42 milliseconds This also implies the replicas sucessfully executed the PBFT algorithm! Usually the replica logs do not show much in Themis since the client logs both throughput and latency results.
The configuration file you use seems also fine to me at first sight. I would recommend to use a higher duration (both experiment as a whole and higher client duration) Note that the client's start time PLUS client duration should not exceed the experiment duration, or else the client process is killed by the experiment tear-down procedure (and will not report aggregated results). I also only recomment having a single client initially before making more complex experiments.
I would recommend the following: (here in JSON, you have to edit the YAML file in YAML):
{ name: '4rep', misc: { runahead: '630 us', duration: '70 s', parallelism: 5, useShortestPath: false }, network: { replicaBandwidthUp: '10 Gibits', replicaBandwidthDown: '10 Gibits', clientBandwidthUp: '10 Gibits', clientBandwidthDown: '10 Gibits', latency: { uniform: true, replicas: '1 ms', clients: '1 ms' }, packetLoss: 0 }, replica: { replicas: 4, minBatchSize: 400, maxBatchSize: 400, replySize: 1024, batchReplies: true, requestTimeout: 40000, batchTimeout: { secs: 1, nano: 10000000 } }, client: { numberOfHosts: 1, clients: 1, startTime: '5 s', payload: 1024, concurrent: 400, duration: 60 } }
zaminsirat
I ran the Themis example, but it seems it did not reach a consensus, and I encountered some errors. Could you please tell me if everything works correctly? I am concerned about missing packages or system errors.
user@user:~/sim/tool$ npm run simulation -- examples/themis/themis-uniform.yaml
I received these errors, but I don't know if they will cause any problems:
themisclient0.stdout file:
themisReplica0 file: