Some MariaDB connection error in log

DaRK AnGeL2 years ago

Using lasted version in docker in Unraid (Linux x64)
Using MariaDB docker from LinuxServer MySQL: 5.5.5-10.5.16-MariaDB-log с PHP-расширением MySQLi

some time ago i changed all my database to utf8mb4_unicode_ci also traccar , maybe it causee the problem ?
having some errors on database conection in log :
But all working i think ...

       at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823)
        at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:448)
        at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:241)
        at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
        at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138)
        at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:359)
        at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201)
        at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:470)
        at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561)
        ... 7 more
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
        at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
        at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
        at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
        at com.mysql.cj.NativeSession.connect(NativeSession.java:120)
        at com.mysql.cj.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:842)
        ... 16 more
Caused by: java.net.ConnectException: Connection refused (Connection refused)
        at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)

2022-07-05 08:32:35  INFO: HikariPool-1 - Starting...
2022-07-05 08:32:40 ERROR: HikariPool-1 - Exception during pool initialization. - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-05 08:32:40 ERROR: Main method error - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-05 08:33:06  INFO: HikariPool-1 - Starting...
2022-07-05 08:33:12  INFO: HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@71529963
2022-07-05 08:33:12  INFO: HikariPool-1 - Start completed.
2022-07-05 08:33:17  INFO: Clearing database change log checksums
2022-07-05 08:33:21  INFO: Successfully acquired change log lock
2022-07-05 08:33:24  INFO: Successfully released change log lock
2022-07-05 08:33:24  INFO: Successfully acquired change log lock
2022-07-05 08:33:24  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.json.JsonChangeLogParser Unable to get public no-arg constructor
2022-07-05 08:33:25  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.yaml.YamlChangeLogParser Unable to get public no-arg constructor
2022-07-05 08:33:43  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-05 08:33:47  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-05 08:33:47  INFO: Cannot load service: liquibase.hub.HubService: Provider liquibase.hub.core.StandardHubService could not be instantiated
2022-07-05 08:33:47  INFO: Successfully released change log lock
2022-07-05 08:33:58  INFO: Operating system name: Linux version: 5.15.46-Unraid architecture: amd64
2022-07-05 08:33:58  INFO: Java runtime name: OpenJDK 64-Bit Server VM vendor: Alpine version: 11.0.15+10-alpine-r0
2022-07-05 08:33:58  INFO: Memory limit heap: 512mb non-heap: 0mb
2022-07-05 08:33:58  INFO: Character encoding: UTF-8 charset: UTF-8
2022-07-05 08:33:58  INFO: Version: 5.0
2022-07-05 08:33:58  INFO: Starting server...
2022-07-05 08:34:01  INFO: jetty-10.0.7; built: 2021-10-06T19:34:02.766Z; git: da8a4553af9dd84080931fa0f8c678cd2d60f3d9; jvm 11.0.15+10-alpine-r0
2022-07-05 08:34:03  INFO: Started o.t.w.@ec5f944{/,null,AVAILABLE}
2022-07-05 08:34:03  INFO: Session workerName=node0
2022-07-05 08:34:06  WARN: JAXBContext implementation could not be found. WADL feature is disabled.
2022-07-05 08:34:10  INFO: Started o.e.j.s.ServletContextHandler@70ed902a{/,null,AVAILABLE}
2022-07-05 08:34:10  INFO: Started ServerConnector@7a583586{HTTP/1.1, (http/1.1)}{0.0.0.0:8082}
2022-07-05 08:34:10  INFO: Started Server@3c17bd0b{STARTING}[10.0.7,sto=0] @69133ms
2022-07-05 08:34:10  WARN: No systemd support - Unable to load library 'systemd':
Error loading shared library libsystemd.so: No such file or directory
Error loading shared library libsystemd.so: No such file or directory
Native library (linux-x86-64/libsystemd.so) not found in resource path (tracker-server.jar) - UnsatisfiedLinkError (... < TaskHealthCheck:41 < ScheduleManager:33 < Main:127 < ...)
2022-07-06 08:32:33  INFO: HikariPool-1 - Starting...
2022-07-06 08:32:38 ERROR: HikariPool-1 - Exception during pool initialization. - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-06 08:32:38 ERROR: Main method error - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-06 08:33:02  INFO: HikariPool-1 - Starting...
2022-07-06 08:33:09  INFO: HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@512535ff
2022-07-06 08:33:09  INFO: HikariPool-1 - Start completed.
2022-07-06 08:33:14  INFO: Clearing database change log checksums
2022-07-06 08:33:18  INFO: Successfully acquired change log lock
2022-07-06 08:33:21  INFO: Successfully released change log lock
2022-07-06 08:33:22  INFO: Successfully acquired change log lock
2022-07-06 08:33:22  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.json.JsonChangeLogParser Unable to get public no-arg constructor
2022-07-06 08:33:23  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.yaml.YamlChangeLogParser Unable to get public no-arg constructor
2022-07-06 08:33:47  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 08:33:49  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 08:33:49  INFO: Cannot load service: liquibase.hub.HubService: Provider liquibase.hub.core.StandardHubService could not be instantiated
2022-07-06 08:33:49  INFO: Successfully released change log lock
2022-07-06 08:34:05  INFO: Operating system name: Linux version: 5.15.46-Unraid architecture: amd64
2022-07-06 08:34:05  INFO: Java runtime name: OpenJDK 64-Bit Server VM vendor: Alpine version: 11.0.15+10-alpine-r0
2022-07-06 08:34:05  INFO: Memory limit heap: 512mb non-heap: 0mb
2022-07-06 08:34:05  INFO: Character encoding: UTF-8 charset: UTF-8
2022-07-06 08:34:05  INFO: Version: 5.0
2022-07-06 08:34:06  INFO: Starting server...
2022-07-06 08:34:08  INFO: jetty-10.0.7; built: 2021-10-06T19:34:02.766Z; git: da8a4553af9dd84080931fa0f8c678cd2d60f3d9; jvm 11.0.15+10-alpine-r0
2022-07-06 08:34:10  INFO: Started o.t.w.@19faedcc{/,null,AVAILABLE}
2022-07-06 08:34:10  INFO: Session workerName=node0
2022-07-06 08:34:14  WARN: JAXBContext implementation could not be found. WADL feature is disabled.
2022-07-06 08:34:16  INFO: Started o.e.j.s.ServletContextHandler@4ce18cec{/,null,AVAILABLE}
2022-07-06 08:34:16  INFO: Started ServerConnector@7a583586{HTTP/1.1, (http/1.1)}{0.0.0.0:8082}
2022-07-06 08:34:16  INFO: Started Server@2b098563{STARTING}[10.0.7,sto=0] @79232ms
2022-07-06 08:34:17  WARN: No systemd support - Unable to load library 'systemd':
Error loading shared library libsystemd.so: No such file or directory
Error loading shared library libsystemd.so: No such file or directory
Native library (linux-x86-64/libsystemd.so) not found in resource path (tracker-server.jar) - UnsatisfiedLinkError (... < TaskHealthCheck:41 < ScheduleManager:33 < Main:127 < ...)
2022-07-06 16:25:30  INFO: HikariPool-1 - Starting...
2022-07-06 16:25:35 ERROR: HikariPool-1 - Exception during pool initialization. - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-06 16:25:35 ERROR: Main method error - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-06 16:25:59  INFO: HikariPool-1 - Starting...
2022-07-06 16:26:05  INFO: HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@71529963
2022-07-06 16:26:05  INFO: HikariPool-1 - Start completed.
2022-07-06 16:26:08  INFO: Clearing database change log checksums
2022-07-06 16:26:12  INFO: Successfully acquired change log lock
2022-07-06 16:26:15  INFO: Successfully released change log lock
2022-07-06 16:26:15  INFO: Successfully acquired change log lock
2022-07-06 16:26:15  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.json.JsonChangeLogParser Unable to get public no-arg constructor
2022-07-06 16:26:16  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.yaml.YamlChangeLogParser Unable to get public no-arg constructor
2022-07-06 16:26:35  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 16:26:37  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 16:26:37  INFO: Cannot load service: liquibase.hub.HubService: Provider liquibase.hub.core.StandardHubService could not be instantiated
2022-07-06 16:26:37  INFO: Successfully released change log lock
2022-07-06 16:26:48  INFO: Operating system name: Linux version: 5.15.46-Unraid architecture: amd64
2022-07-06 16:26:48  INFO: Java runtime name: OpenJDK 64-Bit Server VM vendor: Alpine version: 11.0.15+10-alpine-r0
2022-07-06 16:26:48  INFO: Memory limit heap: 512mb non-heap: 0mb
2022-07-06 16:26:48  INFO: Character encoding: UTF-8 charset: UTF-8
2022-07-06 16:26:48  INFO: Version: 5.0
2022-07-06 16:26:48  INFO: Starting server...
2022-07-06 16:26:51  INFO: jetty-10.0.7; built: 2021-10-06T19:34:02.766Z; git: da8a4553af9dd84080931fa0f8c678cd2d60f3d9; jvm 11.0.15+10-alpine-r0
2022-07-06 16:26:54  INFO: Started o.t.w.@2f1f9515{/,null,AVAILABLE}
2022-07-06 16:26:55  INFO: Session workerName=node0
2022-07-06 16:26:59  WARN: JAXBContext implementation could not be found. WADL feature is disabled.
2022-07-06 16:27:04  INFO: Started o.e.j.s.ServletContextHandler@7165bde6{/,null,AVAILABLE}
2022-07-06 16:27:04  INFO: Started ServerConnector@7a583586{HTTP/1.1, (http/1.1)}{0.0.0.0:8082}
2022-07-06 16:27:04  INFO: Started Server@c758a2d{STARTING}[10.0.7,sto=0] @70182ms
2022-07-06 16:27:05  WARN: No systemd support - Unable to load library 'systemd':
Error loading shared library libsystemd.so: No such file or directory
Error loading shared library libsystemd.so: No such file or directory
Native library (linux-x86-64/libsystemd.so) not found in resource path (tracker-server.jar) - UnsatisfiedLinkError (... < TaskHealthCheck:41 < ScheduleManager:33 < Main:127 < ...)
2022-07-06 16:28:47  INFO: Shutting down server...
2022-07-06 16:34:13  INFO: HikariPool-1 - Starting...
2022-07-06 16:34:18 ERROR: HikariPool-1 - Exception during pool initialization. - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-06 16:34:18 ERROR: Main method error - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-06 16:34:41  INFO: HikariPool-1 - Starting...
2022-07-06 16:34:46  INFO: HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@71529963
2022-07-06 16:34:46  INFO: HikariPool-1 - Start completed.
2022-07-06 16:34:50  INFO: Clearing database change log checksums
2022-07-06 16:34:54  INFO: Successfully acquired change log lock
2022-07-06 16:34:57  INFO: Successfully released change log lock
2022-07-06 16:34:58  INFO: Successfully acquired change log lock
2022-07-06 16:34:58  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.json.JsonChangeLogParser Unable to get public no-arg constructor
2022-07-06 16:34:59  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.yaml.YamlChangeLogParser Unable to get public no-arg constructor
2022-07-06 16:35:17  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 16:35:21  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 16:35:21  INFO: Cannot load service: liquibase.hub.HubService: Provider liquibase.hub.core.StandardHubService could not be instantiated
2022-07-06 16:35:21  INFO: Successfully released change log lock
2022-07-06 16:35:36  INFO: Operating system name: Linux version: 5.15.46-Unraid architecture: amd64
2022-07-06 16:35:36  INFO: Java runtime name: OpenJDK 64-Bit Server VM vendor: Alpine version: 11.0.15+10-alpine-r0
2022-07-06 16:35:36  INFO: Memory limit heap: 512mb non-heap: 0mb
2022-07-06 16:35:36  INFO: Character encoding: UTF-8 charset: UTF-8
2022-07-06 16:35:36  INFO: Version: 5.0
2022-07-06 16:35:36  INFO: Starting server...
2022-07-06 16:35:39  INFO: jetty-10.0.7; built: 2021-10-06T19:34:02.766Z; git: da8a4553af9dd84080931fa0f8c678cd2d60f3d9; jvm 11.0.15+10-alpine-r0
2022-07-06 16:35:41  INFO: Started o.t.w.@5b4954b2{/,null,AVAILABLE}
2022-07-06 16:35:42  INFO: Session workerName=node0
2022-07-06 16:35:46  WARN: JAXBContext implementation could not be found. WADL feature is disabled.
2022-07-06 16:35:50  INFO: Started o.e.j.s.ServletContextHandler@22f80e36{/,null,AVAILABLE}
2022-07-06 16:35:50  INFO: Started ServerConnector@7a583586{HTTP/1.1, (http/1.1)}{0.0.0.0:8082}
2022-07-06 16:35:50  INFO: Started Server@2b098563{STARTING}[10.0.7,sto=0] @73208ms
2022-07-06 16:35:51  WARN: No systemd support - Unable to load library 'systemd':
Error loading shared library libsystemd.so: No such file or directory
Error loading shared library libsystemd.so: No such file or directory
Native library (linux-x86-64/libsystemd.so) not found in resource path (tracker-server.jar) - UnsatisfiedLinkError (... < TaskHealthCheck:41 < ScheduleManager:33 < Main:127 < ...)
2022-07-06 23:32:08  INFO: HikariPool-1 - Starting...
2022-07-06 23:32:17  INFO: HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@512535ff
2022-07-06 23:32:17  INFO: HikariPool-1 - Start completed.
2022-07-06 23:32:22  INFO: Clearing database change log checksums
2022-07-06 23:32:25  INFO: Successfully acquired change log lock
2022-07-06 23:32:27  INFO: Successfully released change log lock
2022-07-06 23:32:28  INFO: Successfully acquired change log lock
2022-07-06 23:32:28  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.json.JsonChangeLogParser Unable to get public no-arg constructor
2022-07-06 23:32:28  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.yaml.YamlChangeLogParser Unable to get public no-arg constructor
2022-07-06 23:32:40  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 23:32:43  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-06 23:32:43  INFO: Cannot load service: liquibase.hub.HubService: Provider liquibase.hub.core.StandardHubService could not be instantiated
2022-07-06 23:32:43  INFO: Successfully released change log lock
2022-07-06 23:32:53  INFO: Operating system name: Linux version: 5.15.46-Unraid architecture: amd64
2022-07-06 23:32:53  INFO: Java runtime name: OpenJDK 64-Bit Server VM vendor: Alpine version: 11.0.15+10-alpine-r0
2022-07-06 23:32:53  INFO: Memory limit heap: 512mb non-heap: 0mb
2022-07-06 23:32:53  INFO: Character encoding: UTF-8 charset: UTF-8
2022-07-06 23:32:53  INFO: Version: 5.0
2022-07-06 23:32:53  INFO: Starting server...
2022-07-06 23:32:57  INFO: jetty-10.0.7; built: 2021-10-06T19:34:02.766Z; git: da8a4553af9dd84080931fa0f8c678cd2d60f3d9; jvm 11.0.15+10-alpine-r0
2022-07-06 23:32:58  INFO: Started o.t.w.@57416e49{/,null,AVAILABLE}
2022-07-06 23:32:58  INFO: Session workerName=node0
2022-07-06 23:33:00  WARN: JAXBContext implementation could not be found. WADL feature is disabled.
2022-07-06 23:33:02  INFO: Started o.e.j.s.ServletContextHandler@4af84a76{/,null,AVAILABLE}
2022-07-06 23:33:02  INFO: Started ServerConnector@3a37a501{HTTP/1.1, (http/1.1)}{0.0.0.0:8082}
2022-07-06 23:33:02  INFO: Started Server@36dafa24{STARTING}[10.0.7,sto=0] @61020ms
2022-07-06 23:33:03  WARN: No systemd support - Unable to load library 'systemd':
Error loading shared library libsystemd.so: No such file or directory
Error loading shared library libsystemd.so: No such file or directory
Native library (linux-x86-64/libsystemd.so) not found in resource path (tracker-server.jar) - UnsatisfiedLinkError (... < TaskHealthCheck:41 < ScheduleManager:33 < Main:127 < ...)
2022-07-07 08:32:35  INFO: HikariPool-1 - Starting...
2022-07-07 08:32:40 ERROR: HikariPool-1 - Exception during pool initialization. - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-07 08:32:40 ERROR: Main method error - Connection refused (Connection refused) - ConnectException (... < DataManager:120 < *:79 < Context:307 < Main:113 < ...)
2022-07-07 08:33:00  INFO: HikariPool-1 - Starting...
2022-07-07 08:33:03  INFO: HikariPool-1 - Added connection com.mysql.cj.jdbc.ConnectionImpl@71529963
2022-07-07 08:33:03  INFO: HikariPool-1 - Start completed.
2022-07-07 08:33:05  INFO: Clearing database change log checksums
2022-07-07 08:33:07  INFO: Successfully acquired change log lock
2022-07-07 08:33:09  INFO: Successfully released change log lock
2022-07-07 08:33:09  INFO: Successfully acquired change log lock
2022-07-07 08:33:09  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.json.JsonChangeLogParser Unable to get public no-arg constructor
2022-07-07 08:33:10  INFO: Cannot load service: liquibase.parser.ChangeLogParser: liquibase.parser.core.yaml.YamlChangeLogParser Unable to get public no-arg constructor
2022-07-07 08:33:29  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-07 08:33:34  INFO: Reading from traccar.DATABASECHANGELOG
2022-07-07 08:33:34  INFO: Cannot load service: liquibase.hub.HubService: Provider liquibase.hub.core.StandardHubService could not be instantiated
2022-07-07 08:33:34  INFO: Successfully released change log lock
2022-07-07 08:33:50  INFO: Operating system name: Linux version: 5.15.46-Unraid architecture: amd64
2022-07-07 08:33:50  INFO: Java runtime name: OpenJDK 64-Bit Server VM vendor: Alpine version: 11.0.15+10-alpine-r0
2022-07-07 08:33:50  INFO: Memory limit heap: 512mb non-heap: 0mb
2022-07-07 08:33:50  INFO: Character encoding: UTF-8 charset: UTF-8
2022-07-07 08:33:50  INFO: Version: 5.0
2022-07-07 08:33:50  INFO: Starting server...
2022-07-07 08:33:53  INFO: jetty-10.0.7; built: 2021-10-06T19:34:02.766Z; git: da8a4553af9dd84080931fa0f8c678cd2d60f3d9; jvm 11.0.15+10-alpine-r0
2022-07-07 08:33:56  INFO: Started o.t.w.@5b4954b2{/,null,AVAILABLE}
2022-07-07 08:33:56  INFO: Session workerName=node0
2022-07-07 08:34:01  WARN: JAXBContext implementation could not be found. WADL feature is disabled.
2022-07-07 08:34:05  INFO: Started o.e.j.s.ServletContextHandler@22f80e36{/,null,AVAILABLE}
2022-07-07 08:34:05  INFO: Started ServerConnector@7a583586{HTTP/1.1, (http/1.1)}{0.0.0.0:8082}
2022-07-07 08:34:05  INFO: Started Server@2b098563{STARTING}[10.0.7,sto=0] @68352ms
2022-07-07 08:34:05  WARN: No systemd support - Unable to load library 'systemd':
Error loading shared library libsystemd.so: No such file or directory
Error loading shared library libsystemd.so: No such file or directory
Native library (linux-x86-64/libsystemd.so) not found in resource path (tracker-server.jar) - UnsatisfiedLinkError (... < TaskHealthCheck:41 < ScheduleManager:33 < Main:127 < ...)
2022-07-07 15:05:21  INFO: [Tc6862445] connected
2022-07-07 15:05:21  INFO: [Tc6862445: osmand < 127.0.0.1] 504f5354...........................
...........................
2022-07-07 15:05:37  INFO: [Tc6862445: osmand > 127.0.0.1] 485454502f312e3120323030204f4b0d...........................
2022-07-07 15:05:37  INFO: [Tc6862445] id: 0002, time: 2022-07-07 15:05:37, lat: 31.26937, lon: 35.21366, speed: 0.2, course: 180.0, accuracy: 25.0
DaRK AnGeL2 years ago

I founded that my Unraid server start in 8:30 ,so even tracar starts after MariaDB but MariaDB container is fully init at 08:32:41 that is some seconds a
after tracar init so (Connection refused) maybe becose of it .

but having other warnigns ...