Launch Neo4j 2.3.2 from the commandline - terminal

I have installed Neo4j 2.3.2 Community Edition on Mac OS 10.10. I can launch the application and connect to it from localhost:7474/browser/. So far, so good.
I would like to launch Neo4j 2.3.2 from a Terminal window, so that I don't have the overhead of a windowed application running at the same time. When I run the following command...
$ ~/neo4j/bin/neo4j console
... I get this output in the Terminal window:
WARNING: Max 256 open files allowed, minimum of 40 000 recommended. See the Neo4j manual.
Starting Neo4j Server console-mode...
Unable to find any JVMs matching version "1.7".
Using additional JVM arguments: -server -XX:+DisableExplicitGC -Dorg.neo4j.server.properties=conf/neo4j-server.properties -Djava.util.logging.config.file=conf/logging.properties -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled -XX:-OmitStackTraceInFastThrow -XX:hashCode=5 -Dneo4j.ext.udc.source=tarball
2016-02-25 14:03:18.755+0000 INFO [API] Setting startup timeout to: 120000ms based on 120000
2016-02-25 14:03:58.356+0000 INFO [API] Successfully started database
2016-02-25 14:04:04.220+0000 INFO [API] Starting HTTP on port :7474 with 2 threads available
2016-02-25 14:04:13.512+0000 INFO [API] Enabling HTTPS on port :7473
09:04:20.201 [main] INFO org.eclipse.jetty.util.log - Logging initialized #98517ms
2016-02-25 14:04:23.034+0000 INFO [API] Mounting static content at [/webadmin] from [webadmin-html]
2016-02-25 14:04:25.785+0000 INFO [API] Mounting static content at [/browser] from [browser]
09:04:25.993 [main] INFO org.eclipse.jetty.server.Server - jetty-9.2.4.v20141103
09:04:26.722 [main] INFO o.e.j.server.handler.ContextHandler - Started o.e.j.s.h.MovedContextHandler#1611ba2{/,null,AVAILABLE}
09:04:27.794 [main] INFO o.e.j.w.StandardDescriptorProcessor - NO JSP Support for /webadmin, did not find org.apache.jasper.servlet.JspServlet
09:04:27.981 [main] INFO o.e.j.server.handler.ContextHandler - Started o.e.j.w.WebAppContext#132ea25{/webadmin,jar:file:/Users/james/neo4j/system/lib/neo4j-server-2.2.5-static-web.jar!/webadmin-html,AVAILABLE}
09:04:38.841 [main] INFO o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler#60bfaa02{/db/manage,null,AVAILABLE}
09:04:39.326 [main] INFO o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler#28e2e149{/db/data,null,AVAILABLE}
09:04:39.353 [main] INFO o.e.j.w.StandardDescriptorProcessor - NO JSP Support for /browser, did not find org.apache.jasper.servlet.JspServlet
09:04:39.355 [main] INFO o.e.j.server.handler.ContextHandler - Started o.e.j.w.WebAppContext#78e6aa71{/browser,jar:file:/Users/james/neo4j/system/lib/neo4j-browser-2.2.5.jar!/browser,AVAILABLE}
09:04:39.536 [main] INFO o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler#4994d9ab{/,null,AVAILABLE}
09:04:39.745 [main] INFO o.e.jetty.server.ServerConnector - Started ServerConnector#2d19cf20{HTTP/1.1}{localhost:7474}
09:04:40.576 [main] INFO o.e.jetty.server.ServerConnector - Started ServerConnector#43c742c{SSL-HTTP/1.1}{localhost:7473}
09:04:40.577 [main] INFO org.eclipse.jetty.server.Server - Started #119058ms
2016-02-25 14:04:40.577+0000 INFO [API] Server started on: http://localhost:7474/
2016-02-25 14:04:40.590+0000 INFO [API] Remote interface ready and available at [http://localhost:7474/]
I have Java version 8, update 74 installed (build 1.8.0_74-b02), so I assume that I can ignore the warning Unable to find any JVMs matching version "1.7".
However, when I visit http://localhost:7474/ in Chrome Version 45.0.2454.85 (64-bit), I see three errors in the Developer Console: two files that fail to load and a subsequent script error.
localhost/:28 GET http://localhost:7474/browser/styles/68eddd94.main.css
localhost/:466 GET http://localhost:7474/browser/scripts/ded362b3.scripts.js
Uncaught Error: [$injector:modulerr] Failed to instantiate module neo4jApp due to:
Error: [$injector:nomod] Module 'neo4jApp' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument.
As a result, the Neo4j interface does not appear in the browser window.
Is it possible to run Neo4j 2.3.2 from the Terminal, and if so, what do I need to do to get http://localhost:7474/ to load correctly?

Shift-reload, or test in an incognito window.
Looks like a JS file mismatch due to aggressive browser caching.

Related

Apache Nifi not starting on Windows 7 - because "extensionMapping" is null

I am just a beginner and trying to install NiFi for first time. I am having problem getting it working.
I have Windows 7 32 bit. I have installed LibericaJDK-19 just to get Nifi working. Else it was not working with java 8 as well for me.
I am trying nifi-1.19.1. conf file is default. I have set JAVA_HOME to point to new JDK - 19.
Last lines of nifi-bootstrap.log
2023-01-18 21:51:13,373 INFO [NiFi Bootstrap Command Listener] org.apache.nifi.bootstrap.RunNiFi Apache NiFi now running and listening for Bootstrap requests on port 51200
2023-01-18 21:53:44,866 ERROR [NiFi logging handler] org.apache.nifi.StdErr Failed to start web server: Cannot invoke "org.apache.nifi.nar.ExtensionMapping.size()" because "extensionMapping" is null
2023-01-18 21:53:44,866 ERROR [NiFi logging handler] org.apache.nifi.StdErr Shutting down...
2023-01-18 21:53:45,515 INFO [main] org.apache.nifi.bootstrap.RunNiFi NiFi never started. Will not restart NiFi
At start of nifi-app.log 
I get the warning
WARN [main] org.apache.nifi.nar.NarUnpacker Unable to load NAR library bundles due to java.util.zip.ZipException: zip END header not found Will proceed without loading any further Nar bundles
java.util.zip.ZipException: zip END header not found
at java.base/java.util.zip.ZipFile$Source.findEND(ZipFile.java:1483)
at java.base/java.util.zip.ZipFile$Source.initCEN(ZipFile.java:1491)
at java.base/java.util.zip.ZipFile$Source.<init>(ZipFile.java:1329)
at java.base/java.util.zip.ZipFile$Source.get(ZipFile.java:1292)
at java.base/java.util.zip.ZipFile$CleanableResource.<init>(ZipFile.java:710)
at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:243)
at java.base/java.util.zip.ZipFile.<init>(ZipFile.java:172)
at java.base/java.util.jar.JarFile.<init>(JarFile.java:345)
at java.base/java.util.jar.JarFile.<init>(JarFile.java:316)
at java.base/java.util.jar.JarFile.<init>(JarFile.java:282)
at org.apache.nifi.nar.NarUnpacker.determineDocumentedNiFiComponents(NarUnpacker.java:605)
at org.apache.nifi.nar.NarUnpacker.unpackDocumentation(NarUnpacker.java:550)
at org.apache.nifi.nar.NarUnpacker.unpackBundleDocs(NarUnpacker.java:287)
at org.apache.nifi.nar.NarUnpacker.mapExtensions(NarUnpacker.java:271)
at org.apache.nifi.nar.NarUnpacker.unpackNars(NarUnpacker.java:220)
at org.apache.nifi.nar.NarUnpacker.unpackNars(NarUnpacker.java:89)
at org.apache.nifi.nar.NarUnpacker.unpackNars(NarUnpacker.java:83)
at org.apache.nifi.nar.NarUnpacker.unpackNars(NarUnpacker.java:74)
at org.apache.nifi.NiFi.<init>(NiFi.java:142)
at org.apache.nifi.NiFi.<init>(NiFi.java:83)
at org.apache.nifi.NiFi.main(NiFi.java:332)
and at the end of nifi-app.log
2023-01-18 21:53:44,866 WARN [main] org.apache.nifi.web.server.JettyServer Failed to start web server... shutting down.
java.lang.NullPointerException: Cannot invoke "org.apache.nifi.nar.ExtensionMapping.size()" because "extensionMapping" is null
at org.apache.nifi.documentation.DocGenerator.generate(DocGenerator.java:61)
at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:788)
at org.apache.nifi.NiFi.<init>(NiFi.java:172)
at org.apache.nifi.NiFi.<init>(NiFi.java:83)
at org.apache.nifi.NiFi.main(NiFi.java:332)
2023-01-18 21:53:44,889 INFO [Thread-0] org.apache.nifi.NiFi Application Server shutdown started
2023-01-18 21:53:44,890 INFO [Thread-0] org.apache.nifi.NiFi Application Server shutdown completed

Tomcat IOException: Duplicate accept detected. This is a known OS bug. Please consider reporting that you are affected:

I just migrated to a new spring boot version lately, namely v2.6.2 and now I find the following exception of some of the services logs.
23:27:45.148 [main] INFO o.s.b.w.e.tomcat.TomcatWebServer - Tomcat started on port(s): 8080 (https) with context path ''
23:27:47.046 [main] INFO o.a.c.i.engine.AbstractCamelContext - Routes startup (total:1 started:1)
23:27:47.048 [main] INFO o.a.c.i.engine.AbstractCamelContext - Started route1 (jms://queue:inp.contentextractor.entry)
23:27:47.049 [main] INFO o.a.c.i.engine.AbstractCamelContext - Apache Camel 3.14.0 (camel-1) started in 2s228ms (build:622ms init:1s32ms start:574ms)
23:27:47.061 [main] INFO eu.hermes.esb.cloud.Application - Started Application in 25.305 seconds (JVM running for 27.737)
23:28:20.356 [https-jsse-nio-8080-exec-4] INFO o.a.c.c.C.[Tomcat].[localhost].[/] - Initializing Spring DispatcherServlet 'dispatcherServlet'
23:28:20.357 [https-jsse-nio-8080-exec-4] INFO o.s.web.servlet.DispatcherServlet - Initializing Servlet 'dispatcherServlet'
23:28:20.359 [https-jsse-nio-8080-exec-4] INFO o.s.web.servlet.DispatcherServlet - Completed initialization in 2 ms
00:05:19.986 [https-jsse-nio-8080-Acceptor] ERROR org.apache.tomcat.util.net.Acceptor - Socket accept failed
java.io.IOException: Duplicate accept detected. This is a known OS bug. Please consider reporting that you are affected: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298
at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:545)
at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:78)
at org.apache.tomcat.util.net.Acceptor.run(Acceptor.java:129)
at java.base/java.lang.Thread.run(Thread.java:834)
05:20:49.981 [https-jsse-nio-8080-Acceptor] ERROR org.apache.tomcat.util.net.Acceptor - Socket accept failed
java.io.IOException: Duplicate accept detected. This is a known OS bug. Please consider reporting that you are affected: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298
at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:545)
at org.apache.tomcat.util.net.NioEndpoint.serverSocketAccept(NioEndpoint.java:78)
at org.apache.tomcat.util.net.Acceptor.run(Acceptor.java:129)
at java.base/java.lang.Thread.run(Thread.java:834)
What does it mean and how harmful is it ?
Following the link provided in the bug (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298), and looking into comments made by community members, it seems that there is something in tomcat usage that uncovered a hidden issue in linux kernal 5.10-rc4 and was most likely fixed in 5.10-rc6.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924298/comments/15
This issue was reported across centOS, amazon linux, Arch linux and even Window 2019 - when using a lower linux kernel than 5.10.
The conclusion from this discussion seems to be the suggestion to update the OS itself to a stable version that uses linux kernel >= 5.10

I can't start Apache Nifi

When I run run-nifi.bat it pops up for a split second but then auto closes. I don't really understand this, I just need it for a university class and it hadn't been properly explained, so I'm just trying on my own really.
I get this in my nifi-app.log:
2021-05-29 17:07:30,179 INFO [main] org.apache.nifi.NiFi Launching NiFi...
2021-05-29 17:07:30,450 INFO [main] org.apache.nifi.security.kms.CryptoUtils Determined default nifi.properties path to be 'D:\SYSTEM\Downloads\nifi-1.13.2-bin\nifi-1.13.2\.\conf\nifi.properties'
2021-05-29 17:07:30,454 INFO [main] o.a.nifi.properties.NiFiPropertiesLoader Loaded 188 properties from D:\SYSTEM\Downloads\nifi-1.13.2-bin\nifi-1.13.2\.\conf\nifi.properties
2021-05-29 17:07:30,465 INFO [main] org.apache.nifi.NiFi Loaded 188 properties
2021-05-29 17:07:30,705 INFO [main] org.apache.nifi.BootstrapListener Started Bootstrap Listener, Listening for incoming requests on port 63487
2021-05-29 17:07:30,711 ERROR [main] org.apache.nifi.NiFi Failure to launch NiFi due to java.net.ConnectException: Connection refused: connect
java.net.ConnectException: Connection refused: connect
at java.base/sun.nio.ch.Net.connect0(Native Method)
at java.base/sun.nio.ch.Net.connect(Net.java:576)
at java.base/sun.nio.ch.Net.connect(Net.java:565)
at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:588)
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:333)
at java.base/java.net.Socket.connect(Socket.java:645)
at java.base/java.net.Socket.connect(Socket.java:595)
at org.apache.nifi.BootstrapListener.sendCommand(BootstrapListener.java:102)
at org.apache.nifi.BootstrapListener.start(BootstrapListener.java:74)
at org.apache.nifi.NiFi.<init>(NiFi.java:102)
at org.apache.nifi.NiFi.<init>(NiFi.java:71)
at org.apache.nifi.NiFi.main(NiFi.java:303)
2021-05-29 17:07:30,712 INFO [Thread-0] org.apache.nifi.NiFi Initiating shutdown of Jetty web server...
2021-05-29 17:07:30,712 INFO [Thread-0] org.apache.nifi.NiFi Jetty web server shutdown completed (nicely or otherwise).
I've tried editing the web properties in the config files in case the default was wrong. Right now it's on, but the errors are the same:
nifi.web.http.host=localhost
nifi.web.http.port=9090
nifi.web.http.network.interface.default=
I have Windows 10 Home Edition.
NiFi requires Java 8 or Java 11 to run. So your environment variables should point to the correct directory with Java 8 or Java 11.
Have you tried setting the JAVA_HOME environment variable? I would recommend checking the config files and telling the configs where to find the Java installation
You might be missing URL ACL
Maybe you can try below command:
netsh http add urlacl url=http://computername:port/ user=username
Source: https://serverfault.com/a/246798/191420

Cannot run SonarQube as Service

If I just run the StartSonar.bat everything works and starts fine.
If I setup a service to run using NSSM using:
Path: ..\blah\wrapper.exe
Startup directory: ..\blah
Arguments: -c ..\blah\conf\wrapper.conf
I get an error in the logs that says:
2019.06.24 16:03:49 INFO web[][o.s.p.ProcessEntryPoint] Starting web
2019.06.24 16:03:50 INFO web[][o.a.t.u.n.NioSelectorPool] Using a shared selector for servlet write/read
2019.06.24 16:03:51 INFO web[][o.e.p.PluginsService] no modules loaded
2019.06.24 16:03:51 INFO web[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.join.ParentJoinPlugin]
2019.06.24 16:03:51 INFO web[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.percolator.PercolatorPlugin]
2019.06.24 16:03:51 INFO web[][o.e.p.PluginsService] loaded plugin [org.elasticsearch.transport.Netty4Plugin]
2019.06.24 16:03:52 INFO web[][o.s.s.e.EsClientProvider] Connected to local Elasticsearch: [127.0.0.1:9001]
2019.06.24 16:03:52 INFO web[][o.s.s.p.LogServerVersion] SonarQube Server / 7.7.0.23042 / 1dcac8b8de36b377a1810cc8f1c4c31744e12729
2019.06.24 16:03:52 INFO web[][o.sonar.db.Database] Create JDBC data source for jdbc:sqlserver://BRKPRCSQUBE1;databaseName=sonar;integratedSecurity=true
2019.06.24 16:03:53 ERROR web[][o.s.s.p.Platform] Web server startup failed
java.lang.IllegalStateException: Can not connect to database. Please check
connectivity and settings (see the properties prefixed by 'sonar.jdbc.').
That leads me to believe there is a problem with setting up the database correctly, but once again.. if I run the StartSonar.bat everything works fine.
The only thing I can think of is that I am setting up the service as a "Local System account," instead of when I run the bat it would be from my own account.
That being said, I cannot use my account and then login and change my password or something every time my AD changes.

Jetty-9 HTTP/2 in OSGi container. Cannot load a HttpFieldPreEncoder implementation for HTTP/2 over ServiceLoader

recently I'm trying to call a REST-service, published over Apache-CXF. Everything is embedded in an Equinox 3.11.0 with Jetty 9.4.1.
Container starts Jetty, configured for HTTP/2:
[main] INFO org.eclipse.jetty.server.Server - jetty-9.4.1.v20170120
[main] INFO org.eclipse.jetty.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler#6f89f665{/,jar:file:///C:/workspaces/com.ebase.eox/cnf/generated/fw/org.eclipse.osgi/12/0/bundleFile!/,AVAILABLE}
[main] INFO org.eclipse.jetty.server.AbstractConnector - Started ServerConnector#187eb9a8{HTTP/1.1,[http/1.1, h2c]}{0.0.0.0:8080}
[main] INFO org.eclipse.jetty.util.ssl.SslContextFactory - x509=X509#1517f633(jetty,h=[],w=[]) for SslContextFactory#4fe01803(bundleentry://12.fwk1276261147/jettyhome/etc/keystore,bundleentry://12.fwk1276261147/jettyhome/etc/keystore)
[main] INFO org.eclipse.jetty.server.AbstractConnector - Started ServerConnector#3015db78{SSL,[ssl, alpn, h2, http/1.1]}{0.0.0.0:8443}
Wenn i call a REST-Service over https/ssl i get an error:
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
at org.eclipse.jetty.http.PreEncodedHttpField.putTo(PreEncodedHttpField.java:119)
at org.eclipse.jetty.http2.hpack.HpackEncoder.encode(HpackEncoder.java:289)
at org.eclipse.jetty.http2.hpack.HpackEncoder.encode(HpackEncoder.java:179)
at org.eclipse.jetty.http2.generator.HeadersGenerator.generateHeaders(HeadersGenerator.java:72)
at org.eclipse.jetty.http2.generator.HeadersGenerator.generate(HeadersGenerator.java:56)
at org.eclipse.jetty.http2.generator.Generator.control(Generator.java:80)
at org.eclipse.jetty.http2.HTTP2Session$ControlEntry.generate(HTTP2Session.java:1143)
at org.eclipse.jetty.http2.HTTP2Flusher.process(HTTP2Flusher.java:168)
at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241)
at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224)
at org.eclipse.jetty.http2.HTTP2Session.frame(HTTP2Session.java:676)
at org.eclipse.jetty.http2.HTTP2Session.frames(HTTP2Session.java:648)
at org.eclipse.jetty.http2.HTTP2Stream.headers(HTTP2Stream.java:91)
at org.eclipse.jetty.http2.server.HttpTransportOverHTTP2.commit(HttpTransportOverHTTP2.java:185)
at org.eclipse.jetty.http2.server.HttpTransportOverHTTP2.send(HttpTransportOverHTTP2.java:111)
at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:687)
at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:743)
at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:234)
at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:218)
... 61 more
It seems (i have proven it), that PreEncodedHttpField cannot load all Implementations of HttpFieldPreEncoder over ServiceLoader.
Iterator<HttpFieldPreEncoder> iter = ServiceLoader.load(HttpFieldPreEncoder.class,PreEncodedHttpField.class.getClassLoader()).iterator();
ServiceLoader sees only a Http1FieldPreEncoder, which is in the same Bundle as PreEncodedHttpField, so observable for a BundleClassLoader. This Implementation is registerd under Index "0".
In my case, it should be used an HTTP/2 Implementation HpackFieldPreEncoder, which bundle in http2-hpack, but not visible for ServiceLoader
Is there any workaround to make this second implementation visible for PreEncodedHttpField to avoid my Exception?
Thank you

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