Ryvaeus

Just wanted to update that if you have a certain special character in your Steam password, the script will fail. Also, if the machine doesn't have enough RAM to satisfy the default allocation of 4gb in projectzomboid-dedi-server.sh, the script will still report that the server is starting even though it never actually does.

Thanks Enigma, that got it working. Unfortunately I hit the same deadend as tobiushirogeri: Infinite waiting time, the client never actually gets into the server. This is what's in the client console: I'll attempt it on an Amazon AWS EC2 instance and report back. Edit: It works on Amazon AWS EC2.

How did you get the server to run? I'm also trying to get this to work on a GCE instance, but after following all these steps and attempting to run projectzomboid-dedi-server.sh, all I get is this: steam@game-server:~/Steam/steamapps/common/ProjectZomboid$ ./projectzomboid-dedi-server.shException in thread "main" java.lang.UnsupportedClassVersionError: zombie/network/GameServer : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:643) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:323) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:268)Could not find the main class: zombie.network.GameServer. Program will exit.

What's your hard drive? Next time you run the game, could you please do this: Set Project Zomboid to windowed mode Open up Task Manager, click "More Details" at the bottom, and go to the "Performance" tab Keep an eye on the disk usage of whichever hard drive your PZ savegame data folder is (By default, it's C:/Users/<username/Zomboid) See if the disk usage approaches 100% at the same time the stuttering happens in PZ I used to have stuttering lag on my very capable gaming machine. It turns out there's a problem with my hard drive (see my thread here). Creating a symlink to the Zomboid folder moved to my SSD instead fixed the problem, though this is only temporary until I replace my hard drive.

Edit: Solved, see last line Yes, I'm using Windows 8.1. I remotely installed Hard Disk Sentinel and ran it just now. Here is more detailed information about my drive's health. -- General Information -- Application Information ------------------------- Installed Version . . . . . . . . . . . . . . . : Hard Disk Sentinel 4.50 PRO Registered To . . . . . . . . . . . . . . . . . : Unregistered version, please register. Current Date And Time . . . . . . . . . . . . . : 1/13/2015 11:14:10 AM Health Calculation Method . . . . . . . . . . . : Analyse data field (default) Computer Information ---------------------- Computer Name . . . . . . . . . . . . . . . . . : SUGO User Name . . . . . . . . . . . . . . . . . . . : Ryvaeus Computer Type . . . . . . . . . . . . . . . . . : Desktop IP Address . . . . . . . . . . . . . . . . . . . : 192.168.0.101 MAC Address . . . . . . . . . . . . . . . . . . : 50-46-5D-4F-21-FB System Uptime . . . . . . . . . . . . . . . . . : 1 days, 15 hours, 15 minutes, 44 seconds System Up Since . . . . . . . . . . . . . . . . : 1/11/2015 7:58:26 PM CPU Usage . . . . . . . . . . . . . . . . . . . : CPU #1: 16 %, CPU #2: 25 %, CPU #3: 28 %, CPU #4: 10 % Virtual Memory . . . . . . . . . . . . . . . . . : 18760 MB, Used: 5685 MB (30 %) System Information -------------------- Windows Version . . . . . . . . . . . . . . . . : Windows 8.1 Pro CPU Type & Speed #1 . . . . . . . . . . . . . . : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz, 3410 MHz CPU Type & Speed #2 . . . . . . . . . . . . . . : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz, 3410 MHz CPU Type & Speed #3 . . . . . . . . . . . . . . : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz, 3410 MHz CPU Type & Speed #4 . . . . . . . . . . . . . . : Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz, 3410 MHz BIOS Manufacturer . . . . . . . . . . . . . . . : ALASKA - 1072009 BIOS Date: 10/28/13 10:42:45 Ver: 11.03 Physical Memory Size . . . . . . . . . . . . . . : 16329 MB, Used: 4266 MB (26 %) Display Adapter . . . . . . . . . . . . . . . . : NVIDIA GeForce GTX 670 Display Resolution . . . . . . . . . . . . . . . : 1920 x 1080 (32 bit) Printer #1 . . . . . . . . . . . . . . . . . . . : Adobe PDF Printer #2 . . . . . . . . . . . . . . . . . . . : EPSON058493 (L355 Series) Printer #3 . . . . . . . . . . . . . . . . . . . : Fax Printer #4 . . . . . . . . . . . . . . . . . . . : Microsoft XPS Document Writer Printer #5 . . . . . . . . . . . . . . . . . . . : Send To OneNote 2013 Network Controller #1 . . . . . . . . . . . . . : Broadcom 802.11n Network Adapter Network Controller #2 . . . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connection Optical Drive . . . . . . . . . . . . . . . . . : F: MATSHITA BD-MLT UJ240AS / 1.02 (BD-RE, DVD-RAM, DVD-RW, CD-RW) PCI Device Information ------------------------ PCI Bus 0; Device 1; Function 0 . . . . . . . . : Xeon(R) processor E3-1200 v2/3rd Gen Core processor PCI Express Root Port - 0151 PCI Bus 0; Device 20; Function 0 . . . . . . . . : %1 USB 3.0 eXtensible Host Controller - %2 (Microsoft);(Intel(R),0100) PCI Bus 0; Device 22; Function 0 . . . . . . . . : Intel(R) Management Engine Interface PCI Bus 0; Device 25; Function 0 . . . . . . . . : Intel(R) 82579V Gigabit Network Connection PCI Bus 0; Device 26; Function 0 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family USB Enhanced Host Controller - 1E2D PCI Bus 0; Device 27; Function 0 . . . . . . . . : High Definition Audio Controller PCI Bus 0; Device 28; Function 0 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 1 - 1E10 PCI Bus 0; Device 28; Function 6 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 7 - 1E1C PCI Bus 0; Device 28; Function 7 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family PCI Express Root Port 8 - 1E1E PCI Bus 0; Device 29; Function 0 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family USB Enhanced Host Controller - 1E26 PCI Bus 0; Device 31; Function 2 . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family SATA AHCI Controller PCI Bus 1; Device 0; Function 0 . . . . . . . . : NVIDIA GeForce GTX 670 PCI Bus 1; Device 0; Function 1 . . . . . . . . : High Definition Audio Controller PCI Bus 3; Device 0; Function 0 . . . . . . . . : Broadcom 802.11n Network Adapter PCI Bus 4; Device 0; Function 0 . . . . . . . . : %1 USB 3.0 eXtensible Host Controller - %2 (Microsoft);(ASMedia,0096) -- Physical Disk Information - Disk: #2: WDC WD30EZRX-00DC0B0 -- Hard Disk Summary ------------------- Hard Disk Number . . . . . . . . . . . . . . . . : 2 Interface . . . . . . . . . . . . . . . . . . . : S-ATA Gen3, 6 Gbps Disk Controller . . . . . . . . . . . . . . . . : Intel(R) 7 Series/C216 Chipset Family SATA AHCI Controller (AHCI) [VEN: 8086, DEV: 1E02] Disk Location . . . . . . . . . . . . . . . . . : Bus Number 2, Target Id 0, LUN 0 Hard Disk Model ID . . . . . . . . . . . . . . . : WDC WD30EZRX-00DC0B0 Firmware Revision . . . . . . . . . . . . . . . : 80.00A80 Hard Disk Serial Number . . . . . . . . . . . . : WD-WMC1T0****** Total Size . . . . . . . . . . . . . . . . . . . : 2861585 MB Power State . . . . . . . . . . . . . . . . . . : Active Logical Drive(s) . . . . . . . . . . . . . . . . : E: [WD Green] Current Temperature . . . . . . . . . . . . . . : 37 °C Power On Time . . . . . . . . . . . . . . . . . : 494 days, 19 hours Estimated Remaining Lifetime . . . . . . . . . . : 10 days Health . . . . . . . . . . . . . . . . . . . . . : #------------------- 9 % (Critical) Performance . . . . . . . . . . . . . . . . . . : #################### 100 % (Excellent) The drive found 1545 bad sectors during its self test. There are 2154 weak sectors found on the disk surface. They may be remapped any time in the later use of the disk. It is recommended to examine the log of the disk regularly. All new problems found will be logged there. It is recommended to backup immediately to prevent data loss. ATA Information ----------------- Hard Disk Cylinders . . . . . . . . . . . . . . : 5814021 Hard Disk Heads . . . . . . . . . . . . . . . . : 16 Hard Disk Sectors . . . . . . . . . . . . . . . : 63 ATA Revision . . . . . . . . . . . . . . . . . . : ATA8-ACS Transport Version . . . . . . . . . . . . . . . : SATA Rev 2.6 Total Sectors . . . . . . . . . . . . . . . . . : 732566646 Bytes Per Sector . . . . . . . . . . . . . . . . : 4096 [Advanced Format] Multiple Sectors . . . . . . . . . . . . . . . . : 16 Error Correction Bytes . . . . . . . . . . . . . : 0 Unformatted Capacity . . . . . . . . . . . . . . : 2861588 MB Maximum PIO Mode . . . . . . . . . . . . . . . . : 4 Maximum Multiword DMA Mode . . . . . . . . . . . : 2 Maximum UDMA Mode . . . . . . . . . . . . . . . : 6 Gbps (6) Active UDMA Mode . . . . . . . . . . . . . . . . : 6 Gbps (6) Minimum Multiword DMA Transfer Time . . . . . . : 120 ns Recommended Multiword DMA Transfer Time . . . . : 120 ns Minimum PIO Transfer Time Without IORDY . . . . : 120 ns Minimum PIO Transfer Time With IORDY . . . . . . : 120 ns ATA Control Byte . . . . . . . . . . . . . . . . : Valid ATA Checksum Value . . . . . . . . . . . . . . . : Valid Acoustic Management Configuration ----------------------------------- Acoustic Management . . . . . . . . . . . . . . : Not supported Acoustic Management . . . . . . . . . . . . . . : Disabled Current Acoustic Level . . . . . . . . . . . . . : Default (00h) Recommended Acoustic Level . . . . . . . . . . . : Default (00h) ATA Features -------------- Read Ahead Buffer . . . . . . . . . . . . . . . : Supported, Enabled DMA . . . . . . . . . . . . . . . . . . . . . . : Supported Ultra DMA . . . . . . . . . . . . . . . . . . . : Supported S.M.A.R.T. . . . . . . . . . . . . . . . . . . . : Supported Power Management . . . . . . . . . . . . . . . . : Supported Write Cache . . . . . . . . . . . . . . . . . . : Supported Host Protected Area . . . . . . . . . . . . . . : Supported Advanced Power Management . . . . . . . . . . . : Not supported Extended Power Management . . . . . . . . . . . : Not supported Power Up In Standby . . . . . . . . . . . . . . : Supported 48-Bit LBA Addressing . . . . . . . . . . . . . : Supported Device Configuration Overlay . . . . . . . . . . : Supported IORDY Support . . . . . . . . . . . . . . . . . : Supported Read/Write DMA Queue . . . . . . . . . . . . . . : Not supported NOP Command . . . . . . . . . . . . . . . . . . : Supported Trusted Computing . . . . . . . . . . . . . . . : Not supported 64-Bit World Wide ID . . . . . . . . . . . . . . : 0150E04E1EAEB1DF Streaming . . . . . . . . . . . . . . . . . . . : Not supported Media Card Pass Through . . . . . . . . . . . . : Not supported General Purpose Logging . . . . . . . . . . . . : Supported Error Logging . . . . . . . . . . . . . . . . . : Supported CFA Feature Set . . . . . . . . . . . . . . . . : Not supported CFast Device . . . . . . . . . . . . . . . . . . : Not supported Long Physical Sectors (8) . . . . . . . . . . . : Supported Long Logical Sectors . . . . . . . . . . . . . . : Not supported Write-Read-Verify . . . . . . . . . . . . . . . : Not supported NV Cache Feature . . . . . . . . . . . . . . . . : Not supported NV Cache Power Mode . . . . . . . . . . . . . . : Not supported NV Cache Size . . . . . . . . . . . . . . . . . : Not supported Free-fall Control . . . . . . . . . . . . . . . : Not supported Free-fall Control Sensitivity . . . . . . . . . : Not supported SSD Features -------------- Data Set Management . . . . . . . . . . . . . . : Not supported TRIM Command . . . . . . . . . . . . . . . . . . : Not supported Deterministic Read After TRIM . . . . . . . . . : Not supported S.M.A.R.T. Details -------------------- Off-line Data Collection Status . . . . . . . . : Successfully Completed Self Test Execution Status . . . . . . . . . . . : Test Failed By Read Element Total Time To Complete Off-line Data Collection : 41160 seconds Execute Off-line Immediate . . . . . . . . . . . : Supported Abort/restart Off-line By Host . . . . . . . . . : Not supported Off-line Read Scanning . . . . . . . . . . . . . : Supported Short Self-test . . . . . . . . . . . . . . . . : Supported Extended Self-test . . . . . . . . . . . . . . . : Supported Conveyance Self-test . . . . . . . . . . . . . . : Supported Selective Self-Test . . . . . . . . . . . . . . : Supported Save Data Before/After Power Saving Mode . . . . : Supported Enable/Disable Attribute Autosave . . . . . . . : Supported Error Logging Capability . . . . . . . . . . . . : Supported Short Self-test Estimated Time . . . . . . . . . : 2 minutes Extended Self-test Estimated Time . . . . . . . : 413 minutes Conveyance Self-test Estimated Time . . . . . . : 5 minutes Last Short Self-test Result . . . . . . . . . . : Test Failed By Read Element Last Short Self-test Date . . . . . . . . . . . : 1/13/2015 11:09:46 AM Last Short Self-test Duration . . . . . . . . . : 1 minutes Last Extended Self-test Result . . . . . . . . . : Never Started Last Extended Self-test Date . . . . . . . . . . : Never Started Last Conveyance Self-test Result . . . . . . . . : Never Started Last Conveyance Self-test Date . . . . . . . . . : Never Started Security Mode --------------- Security Mode . . . . . . . . . . . . . . . . . : Supported Security Erase . . . . . . . . . . . . . . . . . : Supported Security Erase Time . . . . . . . . . . . . . . : 436 minutes Security Enhanced Erase Feature . . . . . . . . : Supported Security Enhanced Erase Time . . . . . . . . . . : 436 minutes Security Enabled . . . . . . . . . . . . . . . . : No Security Locked . . . . . . . . . . . . . . . . : No Security Frozen . . . . . . . . . . . . . . . . : Yes Security Counter Expired . . . . . . . . . . . . : No Security Level . . . . . . . . . . . . . . . . . : High Serial ATA Features --------------------- S-ATA Compliance . . . . . . . . . . . . . . . . : Yes S-ATA I Signaling Speed (1.5 Gps) . . . . . . . : Supported S-ATA II Signaling Speed (3 Gps) . . . . . . . . : Supported S-ATA Gen3 Signaling Speed (6 Gps) . . . . . . . : Supported Receipt Of Power Management Requests From Host . : Supported PHY Event Counters . . . . . . . . . . . . . . . : Supported Non-Zero Buffer Offsets In DMA Setup FIS . . . . : Not supported DMA Setup Auto-Activate Optimization . . . . . . : Supported, Enabled Device Initiating Interface Power Management . . : Supported, Enabled In-Order Data Delivery . . . . . . . . . . . . . : Not supported Asynchronous Notification . . . . . . . . . . . : Not supported Software Settings Preservation . . . . . . . . . : Supported, Enabled Native Command Queuing (NCQ) . . . . . . . . . . : Supported Queue Length . . . . . . . . . . . . . . . . . . : 32 Disk Information ------------------ Disk Family . . . . . . . . . . . . . . . . . . : Caviar Green Form Factor . . . . . . . . . . . . . . . . . . : 3.5" Capacity . . . . . . . . . . . . . . . . . . . . : 3000 GB (3000 x 1,000,000,000 bytes) Number Of Disks . . . . . . . . . . . . . . . . : 4 Number Of Heads . . . . . . . . . . . . . . . . : 8 Disk Interface . . . . . . . . . . . . . . . . . : Serial-ATA/600 Buffer-Host Max. Rate . . . . . . . . . . . . . : 600 MB/seconds Buffer Size . . . . . . . . . . . . . . . . . . : 65536 KB Drive Ready Time (Typical) . . . . . . . . . . . : ? seconds Average Seek Time . . . . . . . . . . . . . . . : ? ms Track To Track Seek Time . . . . . . . . . . . . : ? ms Full Stroke Seek Time . . . . . . . . . . . . . : ? ms Width . . . . . . . . . . . . . . . . . . . . . : 101.6 mm (4.0 inch) Depth . . . . . . . . . . . . . . . . . . . . . : 147.0 mm (5.8 inch) Height . . . . . . . . . . . . . . . . . . . . . : 26.1 mm (1.0 inch) Weight . . . . . . . . . . . . . . . . . . . . . : 640 grams (1.4 pounds) Acoustic (Idle) . . . . . . . . . . . . . . . . : 2.4 Bel Acoustic (Min Performance And Volume) . . . . . : 2.5 Bel Acoustic (Max Performance And Volume) . . . . . : 2.9 Bel Required Power For Spinup . . . . . . . . . . . : 1,780 mA Power Required (Seek) . . . . . . . . . . . . . : 6.0 W Power Required (Idle) . . . . . . . . . . . . . : 5.5 W Power Required (Standby) . . . . . . . . . . . . : 0.8 W Manufacturer . . . . . . . . . . . . . . . . . . : Western Digital Corporation Manufacturer Website . . . . . . . . . . . . . . : http://www.westerndigital.com/en/products S.M.A.R.T. ------------No. Attribute Thre.. Value Worst Data Status Flags 1 Raw Read Error Rate 51 200 200 0000000003AA OK Self Preserving, Error-Rate, Performance, Statistica.. 3 Spin Up Time 21 216 178 000000001046 OK Self Preserving, Performance, Statistical, Critical 4 Start/Stop Count 0 100 100 0000000002B7 OK (Always passing) Self Preserving, Event Count, Statistical 5 Reallocated Sectors Co.. 140 200 200 000000000000 OK Self Preserving, Event Count, Statistical, Critical 7 Seek Error Rate 0 200 200 000000000000 OK (Always passing) Self Preserving, Error-Rate, Performance, Statistical 9 Power On Time Count 0 84 84 000000002E63 OK (Always passing) Self Preserving, Event Count, Statistical 10 Spin Retry Count 0 100 100 000000000000 OK (Always passing) Self Preserving, Event Count, Statistical 11 Drive Calibration Retr.. 0 100 100 000000000000 OK (Always passing) Self Preserving, Event Count, Statistical 12 Drive Power Cycle Count 0 100 100 0000000000EE OK (Always passing) Self Preserving, Event Count, Statistical 192 Power off Retract Cycl.. 0 200 200 000000000059 OK (Always passing) Self Preserving, Event Count, Statistical 193 Load/Unload Cycle Count 0 103 103 0000000475DB OK (Always passing) Self Preserving, Event Count, Statistical 194 Disk Temperature 0 113 84 000000000025 OK (Always passing) Self Preserving, Statistical 196 Reallocation Event Count 0 200 200 000000000000 OK (Always passing) Self Preserving, Event Count, Statistical 197 Current Pending Sector.. 0 196 196 00000000086A OK (Always passing) Self Preserving, Event Count, Statistical 198 Off-Line Uncorrectable.. 0 197 196 000000000609 OK (Always passing) Self Preserving, Event Count 199 Ultra ATA CRC Error Co.. 0 200 200 000000000000 OK (Always passing) Self Preserving, Event Count, Statistical 200 Write Error Rate 0 86 61 00000000B397 OK (Always passing) Error-Rate Transfer Rate Information --------------------------- Total Data Read . . . . . . . . . . . . . . . . : 2 MB, 2 MB since installation (1/13/2015) Total Data Write . . . . . . . . . . . . . . . . : 3 MB, 3 MB since installation Average Reads Per Day . . . . . . . . . . . . . : 2.00 MB Average Writes Per Day . . . . . . . . . . . . . : 3.00 MB Current Transfer Rate . . . . . . . . . . . . . : 0 KB/s Maximum Transfer Rate . . . . . . . . . . . . . : 848 KB/s Current Read Rate . . . . . . . . . . . . . . . : 0 KB/s Current Write Rate . . . . . . . . . . . . . . . : 0 KB/s Current Disk Activity . . . . . . . . . . . . . : 0 % -- Partition Information --Logical Drive Total Space Free Space Free Space Used SpaceC: (Disk: #0) 55.6 GB 0.9 GB 2 % (Low) ###################-D: Samsung SSD (Disk: #1) 119.2 GB 80.7 GB 68 % ######--------------E: WD Green (Disk: #2) 2794.4 GB 1207.5 GB 43 % ###########--------- The "The drive found 1545 bad sectors during its self test. There are 2154 weak sectors found on the disk surface. They may be remapped any time in the later use of the disk" warning is known, I've had those bad sectors since first installing the drive. They haven't increased or decreased since installation, so I'm guessing it's a manufacturing issue that hasn't caused any additional problems. Solved: I moved the Zomboid folder from /user/Zomboid to my SSD, created a symlink from it to the original location, and the game now works without stuttering or lag. This is only a stopgap solution until I replace my dying hard drive.

Mine is from 2012 as well, November specifically. I use HDD Scan to run SMART tests. Here's the result from my latest scan: I'm not sure how much of an issue those two yellow triangles are, but aside from PZ and a couple of other games (Gauntlet, 7 Days to Die) the hard drive functions just fine. This is the specific hard drive I'm using. It seems to be a cause for several other cases of 100% disk usage based on my Google-fu. For the record, I have attempted some popular recommendations known to alleviate spontaneous 100% disk usage including disabling Windows indexing and superfetch. Those efforts were in vain. However, further searching led me to this post on WD's official forum which suggests the issue is that the drive drops from DMA mode to PIO mode for reasons. I'll try this out when I get back home and respond with the results.

Hi, I use a WD Green drive to store all my games and it seems that Project Zomboid in particular doesn't play well with it. I experience heavy stuttering 5-10 minutes into gameplay, and according to Task Manager, it's because my HDD is stuck processing read/write requests - literally stuck on 100% activity while PZ is running, particularly when I'm loading unexplored areas of the map. I moved the PZ installation to my Samsung Evo 830 SSD, but that didn't help; my WD was still bottlenecking, presumably because the game is constantly writing to the save file in Users/<user>/Zomboid which is also on my WD Green. The temporary solution appears to be to not use a "green" drive, which is known to cause issues with games and gaming. However, I would appreciate it if in a future update you gave players the option to change the location of their savegame data, or if you could find a way to reduce the amount of small read/writes needed to eliminate the issue entirely.