Hello Experts, I have a custom processor where I have below lines of code -  private ReadContext configJsonCtx = JsonPath.parse(configJsonString);     private List<Object> workFlows = configJsonCtx.read("$.Workflow");       this.workFlows.forEach((workFlowObj) -> {     try {     DocumentContext workFlow = JsonPath.parse(workFlowObj);   ........     This is working fine with Nifi 16 and com.jayway.jsonpath.json-path:2.4.0 dependency. But now I am trying to upgrade to nifi 24 and I am getting below error when I do that Any idea what could be the reason and solution for the same.   2024-03-12 05:09:08,815 ERROR [Timer-Driven Process Thread-320] c.o.n.p.o.O9QueueRouting O9QueueRouting[id=8718e632-f033-372b-8f6c-682399fbf9b6] Exception: java.lang.ClassCastException: class java.util.LinkedHashMap cannot be cast to class com.jayway.jsonpath.DocumentContext (java.util.LinkedHashMap is in module java.base of loader 'bootstrap'; com.jayway.jsonpath.DocumentContext is in unnamed module of loader org.apache.nifi.nar.NarClassLoader @147e0734) java.lang.ClassCastException: class java.util.LinkedHashMap cannot be cast to class com.jayway.jsonpath.DocumentContext (java.util.LinkedHashMap is in module java.base of loader 'bootstrap'; com.jayway.jsonpath.DocumentContext is in unnamed module of loader org.apache.nifi.nar.NarClassLoader @147e0734) at com.o9solutions.nifi.processors.o9_custom_processors.O9QueueRouting.lambda$onScheduled$0(O9QueueRouting.java:299) at java.base/java.util.ArrayList.forEach(ArrayList.java:1541) at com.o9solutions.nifi.processors.o9_custom_processors.O9QueueRouting.onScheduled(O9QueueRouting.java:269) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:145) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:133) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:78) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotation(ReflectionUtils.java:55) at org.apache.nifi.controller.StandardProcessorNode.lambda$initiateStart$8(StandardProcessorNode.java:1765) at org.apache.nifi.engine.FlowEngine$3.call(FlowEngine.java:123) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Thanks in advnace Mahendra ... View more

Hello experts, I have downloaded and trying to run nifi registry 1.24 with meta data db as mysql and Git flow persistence. Getting below error and unable to start the service -  log in text :  2024-02-21 16:11:13,716 INFO [main] o.a.n.registry.bootstrap.RunNiFiRegistry Runtime Java version: 11.0.14 2024-02-21 16:11:13,725 INFO [main] o.apache.nifi.registry.bootstrap.Command Starting Apache NiFi Registry... 2024-02-21 16:11:13,725 INFO [main] o.apache.nifi.registry.bootstrap.Command Working Directory: /usr/independent_nifi/nifi-registry-1.24.0 2024-02-21 16:11:13,726 INFO [main] o.apache.nifi.registry.bootstrap.Command Command: java -classpath /usr/independent_ni............................. 2024-02-21 16:11:13,743 INFO [main] o.apache.nifi.registry.bootstrap.Command Launched Apache NiFi Registry with Process ID 19099 2024-02-21 16:11:14,447 INFO [NiFi Registry Bootstrap Command Listener] o.a.n.registry.bootstrap.RunNiFiRegistry Apache NiFi Registry now running and listening for Bootstrap requests on port 37730 2024-02-21 16:11:17,712 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut 2024-02-21 16:11:17,712 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut Apache NiFi _ _ 2024-02-21 16:11:17,712 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut _ __ ___ __ _(_)___| |_ _ __ _ _ 2024-02-21 16:11:17,712 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut | '__/ _ \/ _` | / __| __| '__| | | | 2024-02-21 16:11:17,712 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut | | | __/ (_| | \__ \ |_| | | |_| | 2024-02-21 16:11:17,713 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut |_| \___|\__, |_|___/\__|_| \__, | 2024-02-21 16:11:17,713 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut ==========|___/================|___/= 2024-02-21 16:11:17,713 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut v 2024-02-21 16:11:17,713 INFO [NiFi logging handler] org.apache.nifi.registry.StdOut 2024-02-21 16:11:20,550 ERROR [NiFi logging handler] org.apache.nifi.registry.StdErr Wed Feb 21 16:11:20 UTC 2024 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 2024-02-21 16:11:21,763 ERROR [NiFi logging handler] org.apache.nifi.registry.StdErr Server start failed: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accessPolicyResource' defined in file [/usr/independent_nifi/nifi-registry-1.24.0/work/jetty/nifi-registry-web-api-1.24.0.war/webapp/WEB-INF/classes/org/apache/nifi/registry/web/api/AccessPolicyResource.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'standardServiceFacade' defined in file [/usr/independent_nifi/nifi-registry-1.24.0/work/jetty/nifi-registry-web-api-1.24.0.war/webapp/WEB-INF/classes/org/apache/nifi/registry/web/service/StandardServiceFacade.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registryService' defined in URL [jar:file:/usr/independent_nifi/nifi-registry-1.24.0/work/jetty/nifi-registry-web-api-1.24.0.war/webapp/WEB-INF/lib/nifi-registry-framework-1.24.0.jar!/org/apache/nifi/registry/service/RegistryService.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'databaseMetadataService' defined in URL [jar:file:/usr/independent_nifi/nifi-registry-1.24.0/work/jetty/nifi-registry-web-api-1.24.0.war/webapp/WEB-INF/lib/nifi-registry-framework-1.24.0.jar!/org/apache/nifi/registry/db/DatabaseMetadataService.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flyway' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.flywaydb.core.Flyway]: Factory method 'flyway' threw exception; nested exception is org.flywaydb.core.api.FlywayException: Unable to obtain connection from Flyway DataSource 2024-02-21 16:11:22,745 INFO [main] o.a.n.registry.bootstrap.RunNiFiRegistry NiFi Registry never started. Will not restart NiFi Registry   nifi-registry.properties: nifi.registry.web.war.directory=./lib nifi.registry.web.http.host=nifi12-dev.xyz.com nifi.registry.web.http.port=61080 nifi.registry.web.https.host= nifi.registry.web.https.port= nifi.registry.web.https.application.protocols=http/1.1 nifi.registry.web.jetty.working.directory=./work/jetty nifi.registry.web.jetty.threads=200 nifi.registry.web.should.send.server.version=true nifi.registry.security.keystore= nifi.registry.security.keystoreType=jks nifi.registry.security.keystorePasswd= nifi.registry.security.keyPasswd= nifi.registry.security.truststore= nifi.registry.security.truststoreType=jks nifi.registry.security.truststorePasswd= nifi.registry.security.needClientAuth=True nifi.registry.security.authorizers.configuration.file=./conf/authorizers.xml nifi.registry.security.authorizer=managed-authorizer nifi.registry.security.identity.providers.configuration.file=./conf/identity-providers.xml nifi.registry.security.identity.provider= nifi.registry.sensitive.props.additional.keys= nifi.registry.providers.configuration.file=./conf/providers.xml nifi.registry.registry.alias.configuration.file=./conf/registry-aliases.xml nifi.registry.extensions.working.directory=./work/extensions nifi.registry.db.directory= nifi.registry.db.url.append=;LOCK_TIMEOUT=25000;WRITE_DELAY=0;AUTO_SERVER=FALSE;useSSL=false # database properties nifi.registry.db.url=jdbc:mysql://localhost:3306/nifi24_registry nifi.registry.db.driver.class=com.mysql.jdbc.Driver nifi.registry.db.driver.directory=/usr/share/java/ nifi.registry.db.username=registry nifi.registry.db.password=PasswordSample1234 nifi.registry.db.maxConnections=5 nifi.registry.db.sql.debug=false Any suggestion / solution is much appreciated. Thanks Mahendra ... View more

Hello Experts, We are using Nifi for continuous data ingestion over http port (as rest api) and also we use nifi admin rest api to dynamically start/stop procesors or update variable registry or create process groups etc. We are facing a challenge with these admin rest api's (/nifi-api), i.e   when nifi restarted all apis responds very quickly and works fine and when days go on (if no nifi restart in btwn) they nifi rest api's becomes very slow and at some point they stop responding or timing out. And this slowness/not responding issue will resolve only after nifi restart. Since we have real time data ingestion via http port , we cant really restart frequently. Nifi version : 1.16.3 Is there any solution for this problem ? or any suggestion to tackle this would be much appreciated Thanks, Mahendra ... View more