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BalajiSeshadri commented on KAFKA-1476: --------------------------------------- [~nehanarkhede] I tried to implement the describe group,but the cal is getting stuck in while loop of readFrom. Please see log below. io.EOFException: Received -1 when reading from channel, socket has likely been closed. at kafka.utils.Utils$.read(Utils.scala:381) at kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54) at kafka.network.Receive$class.readCompletely(Transmission.scala:56) at kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29) at kafka.network.BlockingChannel.receive(BlockingChannel.scala:108) at kafka.client.ClientUtils$.channelToOffsetManager(ClientUtils.scala:154) at kafka.tools.ConsumerCommand$.getOffsetsByTopic(ConsumerCommand.scala:92) at kafka.tools.ConsumerCommand$.main(ConsumerCommand.scala:67) at kafka.tools.ConsumerCommand.main(ConsumerCommand.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) java.io.EOFException: Received -1 when reading from channel, socket has likely been closed. at kafka.utils.Utils$.read(Utils.scala:381) at kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54) at kafka.network.Receive$class.readCompletely(Transmission.scala:56) at kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29) at kafka.network.BlockingChannel.receive(BlockingChannel.scala:108) at kafka.client.ClientUtils$.channelToOffsetManager(ClientUtils.scala:154) at kafka.tools.ConsumerCommand$.getOffsetsByTopic(ConsumerCommand.scala:92) at kafka.tools.ConsumerCommand$.main(ConsumerCommand.scala:67) at kafka.tools.ConsumerCommand.main(ConsumerCommand.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) java.io.EOFException: Received -1 when reading from channel, socket has likely been closed. at kafka.utils.Utils$.read(Utils.scala:381) at kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54) at kafka.network.Receive$class.readCompletely(Transmission.scala:56) at kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29) at kafka.network.BlockingChannel.receive(BlockingChannel.scala:108) at kafka.client.ClientUtils$.channelToOffsetManager(ClientUtils.scala:154) at kafka.tools.ConsumerCommand$.getOffsetsByTopic(ConsumerCommand.scala:92) at kafka.tools.ConsumerCommand$.main(ConsumerCommand.scala:67) at kafka.tools.ConsumerCommand.main(ConsumerCommand.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) Its just continously going through while loop of kafka.client.ClientUtils$.channelToOffsetManager(ClientUtils.scala:154). > Get a list of consumer groups > ----------------------------- > > Key: KAFKA-1476 > URL: https://issues.apache.org/jira/browse/KAFKA-1476 > Project: Kafka > Issue Type: Wish > Components: tools > Affects Versions: 0.8.1.1 > Reporter: Ryan Williams > Assignee: BalajiSeshadri > Labels: newbie > Fix For: 0.9.0 > > Attachments: KAFKA-1476-LIST-GROUPS.patch, KAFKA-1476-RENAME.patch, > KAFKA-1476.patch > > > It would be useful to have a way to get a list of consumer groups currently > active via some tool/script that ships with kafka. This would be helpful so > that the system tools can be explored more easily. > For example, when running the ConsumerOffsetChecker, it requires a group > option > bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker --topic test --group > ? > But, when just getting started with kafka, using the console producer and > consumer, it is not clear what value to use for the group option. If a list > of consumer groups could be listed, then it would be clear what value to use. > Background: > http://mail-archives.apache.org/mod_mbox/kafka-users/201405.mbox/%3cCAOq_b1w=slze5jrnakxvak0gu9ctdkpazak1g4dygvqzbsg...@mail.gmail.com%3e -- This message was sent by Atlassian JIRA (v6.3.4#6332)