Raspberry Pi 4 B java.lang.UnsatisfiedLinkError

[loziniak]

Hello. I've described my problem in hyperledger/besu#2974 . I have problems running Hyperledger Besu on Raspberry Pi 4 B.

I suspect the problem is caused by improper architecture detection. In rocksdb/java/src/main/java/org/rocksdb/util/Environment.java there's isAarch64() method, which expects "aarch64" string. Unfortunately, Raspberry Pi's system reports "arm":

pi@rpi1:~ $ echo "public class Arch { public static void main(String[] args) { System.out.println(System.getProperty(\"os.arch\")); } }" > Arch.java 
pi@rpi1:~ $ javac Arch.java 
pi@rpi1:~ $ java Arch
arm

Expected behavior

no errors

Actual behavior

I get this error:

java.lang.UnsatisfiedLinkError: /tmp/librocksdbjni10400974045892340195.so: /tmp/librocksdbjni10400974045892340195.so: cannot open shared object file: No such file or directory (Possible cause: can't load IA 32-bit .so on a ARM-bit platform)
	at java.base/java.lang.ClassLoader$NativeLibrary.load0(Native Method)
	at java.base/java.lang.ClassLoader$NativeLibrary.load(ClassLoader.java:2442)
	at java.base/java.lang.ClassLoader$NativeLibrary.loadLibrary(ClassLoader.java:2498)
	at java.base/java.lang.ClassLoader.loadLibrary0(ClassLoader.java:2694)
	at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2627)
	at java.base/java.lang.Runtime.load0(Runtime.java:768)
	at java.base/java.lang.System.load(System.java:1837)
	at org.rocksdb.NativeLibraryLoader.loadLibraryFromJar(NativeLibraryLoader.java:79)
	at org.rocksdb.NativeLibraryLoader.loadLibrary(NativeLibraryLoader.java:57)
	at org.rocksdb.RocksDB.loadLibrary(RocksDB.java:69)
	at org.rocksdb.RocksDB.<clinit>(RocksDB.java:38)
	at org.hyperledger.besu.plugin.services.storage.rocksdb.RocksDbUtil.loadNativeLibrary(RocksDbUtil.java:30)
	at org.hyperledger.besu.plugin.services.storage.rocksdb.segmented.RocksDBColumnarKeyValueStorage.<clinit>(RocksDBColumnarKeyValueStorage.java:66)
	at org.hyperledger.besu.plugin.services.storage.rocksdb.RocksDBKeyValueStorageFactory.create(RocksDBKeyValueStorageFactory.java:124)
	at org.hyperledger.besu.ethereum.storage.keyvalue.KeyValueStorageProviderBuilder.build(KeyValueStorageProviderBuilder.java:71)
	at org.hyperledger.besu.cli.BesuCommand.keyValueStorageProvider(BesuCommand.java:2281)
	at org.hyperledger.besu.cli.BesuCommand.getControllerBuilder(BesuCommand.java:1697)
	at org.hyperledger.besu.cli.BesuCommand.buildController(BesuCommand.java:1690)
	at org.hyperledger.besu.cli.BesuCommand.initController(BesuCommand.java:1685)
	at org.hyperledger.besu.cli.BesuCommand.run(BesuCommand.java:1223)
	at picocli.CommandLine.executeUserObject(CommandLine.java:1939)
	at picocli.CommandLine.access$1300(CommandLine.java:145)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2352)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2346)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2311)
	at picocli.CommandLine$AbstractParseResultHandler.handleParseResult(CommandLine.java:2172)
	at picocli.CommandLine.parseWithHandlers(CommandLine.java:2550)
	at org.hyperledger.besu.cli.util.ConfigOptionSearchAndRunHandler.handle(ConfigOptionSearchAndRunHandler.java:56)
	at org.hyperledger.besu.cli.util.ConfigOptionSearchAndRunHandler.handle(ConfigOptionSearchAndRunHandler.java:31)
	at picocli.CommandLine$AbstractParseResultHandler.handleParseResult(CommandLine.java:2172)
	at picocli.CommandLine.parseWithHandlers(CommandLine.java:2550)
	at org.hyperledger.besu.cli.BesuCommand.parse(BesuCommand.java:1368)
	at org.hyperledger.besu.cli.BesuCommand.parse(BesuCommand.java:1196)
	at org.hyperledger.besu.Besu.main(Besu.java:50)

Steps to reproduce the behavior

Start Raspberry Pi 4 B from latest Raspberry Pi OS:

wget https://downloads.raspberrypi.org/raspios_lite_armhf/images/raspios_lite_armhf-2021-05-28/2021-05-07-raspios-buster-armhf-lite.zip
unzip 2021-05-07-raspios-buster-armhf-lite.zip
dd if=downl/2021-05-07-raspios-buster-armhf-lite.img of=/dev/mmcblk0 bs=1M &

Install Besu:

ssh pi@192.168.0.100

sudo su
apt-get update
apt-get install --no-install-recommends --no-install-suggests unzip openjdk-11-jdk wget curl
adduser besu

su besu
cd ~/
wget https://hyperledger.jfrog.io/artifactory/besu-binaries/besu/21.7.4/besu-21.7.4.zip
unzip besu-21.7.4.zip
mkdir -p ~/IBFT-Network/node1/data
touch ~/IBFT-Network/genesis.json
vim ~/IBFT-Network/genesis.json

Run Besu:

./besu-21.7.4/bin/besu besu --data-path=IBFT-Network/node1/data --genesis-file=IBFT-Network/genesis.json

[loziniak]

Seems I have a 32-bit OS (armhf instead of arm64 on image filename). I'll close the issue for now.