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Andres Gomez Ferrer commented on KAFKA-3805: -------------------------------------------- I use the same application id, because I want that the two instances balance the Kafka topics partitions. In the docs: application.id - An identifier for the stream processing application. Must be unique within the Kafka cluster. It is used as 1) the default client-id prefix, 2) the group-id for membership management, 3) the changelog topic prefix. The number 2) told that the application id is used to make the group-id and it must be the same if I want that the two instances balance the topic partitions, isn't?? I think that, if I use differents applications id both Kafka stream applications read all messages from all partitions. > Java_org_rocksdb_RocksDB_write error > ------------------------------------ > > Key: KAFKA-3805 > URL: https://issues.apache.org/jira/browse/KAFKA-3805 > Project: Kafka > Issue Type: Bug > Components: streams > Affects Versions: 0.10.0.0 > Environment: * Ubuntu Server 16.04 LTS > - Java: OpenJDK Runtime Environment (build > 1.8.0_91-8u91-b14-0ubuntu4~16.04.1-b14) > * OSX 10.11.5 > - Java: Java(TM) SE Runtime Environment (build 1.8.0_74-b02) > Reporter: Andres Gomez Ferrer > Assignee: Guozhang Wang > Priority: Critical > Attachments: hs_err_pid23047.log > > > I reproduce the error working with simple two instances of my kafka streams > application reading from one topic writing on other and using a RocksDB store. > I reproduce it starting one instance, sending some messages on the input > topic and later starting another Kafka streams instance. Then, the first > instance died and drop a core dump. > ------------------------------------------------------------------------------------------------------------------ > A fatal error has been detected by the Java Runtime Environment: > SIGSEGV (0xb) at pc=0x00007f9f488fd8e8, pid=23047, tid=140322171361024 > JRE version: OpenJDK Runtime Environment (8.0_91-b14) (build > 1.8.0_91-8u91-b14-0ubuntu4~16.04.1-b14) > Java VM: OpenJDK 64-Bit Server VM (25.91-b14 mixed mode linux-amd64 > compressed oops) > Problematic frame: > C [librocksdbjni712288404493406713..so+0x15b8e8] > Java_org_rocksdb_RocksDB_write0+0x48 > Core dump written. Default location: /root/core or core.23047 > An error report file with more information is saved as: > /root/hs_err_pid23047.log > If you would like to submit a bug report, please visit: > http://bugreport.java.com/bugreport/crash.jsp > The crash happened outside the Java Virtual Machine in native code. > See problematic frame for where to report the bug. > ------------------------------------------------------------------------------------------------------------------ > The core dump is there: > https://s3-eu-west-1.amazonaws.com/arodriguezg-test/core > Note: The core dump is collected at Ubuntu Server. -- This message was sent by Atlassian JIRA (v6.3.4#6332)