Google Groups | vivek sharma | 2 weeks ago
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  1. 0

    Null Pointer Exception for KTable, Can someone suggest?

    Google Groups | 2 weeks ago | vivek sharma
  2. 0

    Kafka-streams state dir io error

    Stack Overflow | 8 months ago | Rahul Shukla
    org.apache.kafka.streams.errors.ProcessorStateException: Error while executing flush from store agg
  3. 0

    Invalid Topology running kstream examples

    Google Groups | 10 months ago | Jason Jho
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  5. 0

    stream shut down due to no locks for state store

    Google Groups | 3 months ago | Shannon Ma
    org.apache.kafka.streams.errors.ProcessorStateException: Error opening store txnwindowstore18000000-201611251500 at location /tmp/kafka-streams/rt_txn_dup_w/1_0/txnwindowstore18000000/txnwindowstore18000000-201611251500

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.rocksdb.RocksDB.get()
    2. org.rocksdb
      1. org.rocksdb.RocksDB.get(
      1 frame
    3. org.apache.kafka
      1. org.apache.kafka.streams.state.internals.RocksDBStore.getInternal(
      2. org.apache.kafka.streams.state.internals.RocksDBStore.get(
      3. org.apache.kafka.streams.state.internals.MeteredKeyValueStore.get(
      4. org.apache.kafka.streams.kstream.internals.KTableSource$MaterializedKTableSourceProcessor.process(
      5. org.apache.kafka.streams.processor.internals.ProcessorNode.process(
      6. org.apache.kafka.streams.processor.internals.StreamTask.forward(
      7. org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(
      8. org.apache.kafka.streams.processor.internals.SourceNode.process(
      9. org.apache.kafka.streams.processor.internals.StreamTask.process(
      10. org.apache.kafka.streams.processor.internals.StreamThread.runLoop(
      11 frames