gminer cannot connect to TCP port 3333 at MiningRigRentals (MRR)

[PSLLSP]

gminer_2_74_linux64.tar.xz

It looks like gminer doesn't support client.reconnect. I demonstrate it with equihash 125/4 (FLUX) but the same is with equihash 144/5 (BTG).

This config doesn't work, the issue:

$ cat test-flux-mrr-1.sh 
#!/bin/sh

POOL="eu-de02.miningrigrentals.com:3333"

USER="droidMiner.187408"
PASS="TEST1"

OPTS=""

./miner --algo 125_4 --server "$POOL" --user "$USER" --pass "$PASS" $OPTS "$@"

This config works, it connect directly to custom TCP port, this is a workarround:

$ cat test-flux-mrr-2.sh 
#!/bin/sh

#POOL="eu-de02.miningrigrentals.com:3333"
POOL="eu-de02.miningrigrentals.com:50145"

USER="droidMiner.187408"
PASS="TEST2"

OPTS=""

./miner --algo 125_4 --server "$POOL" --user "$USER" --pass "$PASS" $OPTS "$@"

The issue, gminer cannot connect to the pool:

$ sh test-flux-mrr-1.sh 
+----------------------------------------------------------------+
|                          GMiner v2.74                          |
+----------------------------------------------------------------+
Algorithm:          Equihash 125,4 "ZelProof"
DevFee:             2 %
Stratum server:     
  host:             eu-de02.miningrigrentals.com:3333
  user:             droidMiner.187408
  password:         TEST1
Power calculator:   on
Color output:       on
Watchdog:           on
API:                off
Log to file:        off
Selected devices:   GPU0  
Intensity:          100   
Temperature limits: 90/120
------------------------------------------------------------------
22:50:07 Nvidia Driver: 470.86
22:50:08 Connected to eu-de02.miningrigrentals.com:3333 [165.227.153.169]
22:50:08 Subscribed to Stratum Server
22:50:08 Set Extra Nonce: f800002e
22:50:08 Connection Error: Connection closed
22:50:18 Connected to eu-de02.miningrigrentals.com:3333 [165.227.153.169]
22:50:18 Subscribed to Stratum Server
22:50:18 Set Extra Nonce: f800002e
22:50:18 Connection Error: Connection closed

You can use miniZ as a reference, it can connect to TCP port 3333. The same configuration, no issue...

$ cat mine-flux-mrr-3.sh
#!/bin/sh

# mine EQU125/4 at MRR

POOL="eu-de02.miningrigrentals.com:3333"

USER="droidMiner.187408"
PASS="TEST3"

OPTS=""

./miniZ --par=125,4 --server="$POOL" --user="$USER" --pass="$PASS" $OPTS "$@"

$ sh mine-flux-mrr-3.sh
************ miniZ v1.8y3 ************
Number of CUDA[8.0] devices found: 1
miniZ<125,4>[16:0:00.0:2797]: Selecting GPU#0[0] NVIDIA GeForce GTX 1060 3GB
Driver:         470.86
Algo:           EQ[125,4] [smart-pers]
Pool#0:         user[droidMiner.187408]
                server[eu-de02.miningrigrentals.com] port[3333] ssl[no] pers[ZelProof]
Telemetry:      [http://localhost:20000]
Temp. limit:    [90°C]
[INFO   ] Mining fee set to 2.00%
[INFO   ] Reconnection requested
[ 0d 0h 0m02s] 0>GTX 1060 3GB ` 100% [70°C/56%]  9.37 I/s 18.70(18.70)Sol/s  32( 31.8)W clk=1657MHz mclk=3802MHz Sol/W=0.59
[ 0d 0h 0m10s] 0>GTX 1060 3GB ` 100% [73°C/56%]  9.30 I/s 18.56(18.56)Sol/s  65( 65.5)W clk=1506MHz mclk=3802MHz Sol/W=0.28

[PSLLSP]

Retested with gminer v3.41, the issue was fixed, method client.reconnect is handled as expected...

+----------------------------------------------------------------+
|                          GMiner v3.41                          |
+----------------------------------------------------------------+
Algorithm:          Equihash 125,4 "ZelProof"
DevFee:             2 %
Server:             
  host:             eu-de02.miningrigrentals.com:3333
  user:             droidMiner.187408
  password:         HIVEOS
Power calculator:   on
Color output:       on
Watchdog:           on
API:                http://127.0.0.1:42010
Log to file:        /var/log/miner/gminer/gminer.log
Selected devices:   GPU0  
Intensity:          100   
Temperature limits: 90/120
------------------------------------------------------------------
23:32:34 Nvidia Driver: 460.91.03
23:32:34 Connected to eu-de02.miningrigrentals.com:3333 [165.227.153.169]
23:32:34 Subscribed to Stratum Server
23:32:34 Set Extra Nonce: f800002e
23:32:38 Authorized on Stratum Server
23:32:38 Reconnect to eu-de02.miningrigrentals.com:52672
23:32:38 Connected to eu-de02.miningrigrentals.com:52672 [165.227.153.169]
23:32:40 Subscribed to Stratum Server
23:32:40 Set Extra Nonce: 6ffc6368
23:32:40 Authorized on Stratum Server
23:32:40 New Job: e491 Diff: 0.039
23:32:40 Started Mining on GPU0: ZOTAC GeForce GTX 1070 8GB [0000:02:00.0]
23:32:46 GPU0: Share #1 verified on CPU, difficulty: 0.103
23:32:46 GPU0: Share #1 accepted 87 ms
23:32:51 New Job: e492 Diff: 0.039