i did not have log4j.logger.org.reflections=ERROR, because i didnt update my log4j files yet. i will do this now.
connect seems to start up fine. i still wonder why its searching for gson. like... where does it get the idea for the start searching for gson? i dont use gson and neither does connect it seems? On Thu, Jul 6, 2017 at 8:09 PM, Konstantine Karantasis < konstant...@confluent.io> wrote: > Hi Koert, > > these warnings appear to be produced during the class scanning that Connect > is performing when it's starting up. Connect is using org.reflections to > discover plugins (Connectors, Transformations, Converters) in the various > locations that it's configured to search for plugins. > (such locations are entries in the plugin.path property as well as the > supplied CLASSPATH). It's normally safe to ignore the warnings. > > I would expect that such warnings would be disabled by having: > > log4j.logger.org.reflections=ERROR > > in config/connect-log4j.properties. > > Does this setting exist in your environment? Did you by any change enabled > a different log level for org.reflections? > Also, is Connect starting up successfully after all these warnings are > logged? > > Konstantine > > > On Thu, Jul 6, 2017 at 3:33 PM, Koert Kuipers <ko...@tresata.com> wrote: > > > i just did a test upgrade to kafka 0.11.0.0 and i am seeing lots of > > ClassNotFoundException in the logs for connect-distributed upon startup, > > see below. is this expected? kind of curious why its looking for say gson > > while gson jar is not in libs folder. > > best, > > koert > > > > > > [2017-07-06 22:20:41,844] INFO Reflections took 6944 ms to scan 65 urls, > > producing 3136 keys and 25105 values (org.reflections.Reflections:232) > > [2017-07-06 22:20:42,126] WARN could not get type for name > > org.osgi.framework.BundleListener from any class loader > > (org.reflections.Reflections:396) > > org.reflections.ReflectionsException: could not get type for name > > org.osgi.framework.BundleListener > > at org.reflections.ReflectionUtils.forName( > > ReflectionUtils.java:390) > > at > > org.reflections.Reflections.expandSuperTypes(Reflections.java:381) > > at org.reflections.Reflections.<init>(Reflections.java:126) > > at > > org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader. > > scanPluginPath(DelegatingClassLoader.java:221) > > at > > org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader. > > scanUrlsAndAddPlugins(DelegatingClassLoader.java:198) > > at > > org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader. > > initLoaders(DelegatingClassLoader.java:159) > > at > > org.apache.kafka.connect.runtime.isolation.Plugins.< > init>(Plugins.java:47) > > at > > org.apache.kafka.connect.cli.ConnectDistributed.main( > > ConnectDistributed.java:63) > > Caused by: java.lang.ClassNotFoundException: > > org.osgi.framework.BundleListener > > at java.net.URLClassLoader.findClass(URLClassLoader.java:381) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > > at org.reflections.ReflectionUtils.forName( > > ReflectionUtils.java:388) > > ... 7 more > > [2017-07-06 22:20:42,223] WARN could not get type for name > > com.google.gson.JsonDeserializer from any class loader > > (org.reflections.Reflections:396) > > org.reflections.ReflectionsException: could not get type for name > > com.google.gson.JsonDeserializer > > at org.reflections.ReflectionUtils.forName( > > ReflectionUtils.java:390) > > at > > org.reflections.Reflections.expandSuperTypes(Reflections.java:381) > > at org.reflections.Reflections.<init>(Reflections.java:126) > > at > > org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader. > > scanPluginPath(DelegatingClassLoader.java:221) > > at > > org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader. > > scanUrlsAndAddPlugins(DelegatingClassLoader.java:198) > > at > > org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader. > > initLoaders(DelegatingClassLoader.java:159) > > at > > org.apache.kafka.connect.runtime.isolation.Plugins.< > init>(Plugins.java:47) > > at > > org.apache.kafka.connect.cli.ConnectDistributed.main( > > ConnectDistributed.java:63) > > Caused by: java.lang.ClassNotFoundException: > > com.google.gson.JsonDeserializer > > at java.net.URLClassLoader.findClass(URLClassLoader.java:381) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > > at org.reflections.ReflectionUtils.forName( > > ReflectionUtils.java:388) > > ... 7 more > > >
