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From "tosaiganesh@gmail.com" <tosaigan...@gmail.com>
Subject Spark Streaming WAL issue**: File exists and there is no append support!
Date Thu, 16 Jun 2016 22:50:37 GMT
Hello

I am using Azure Blob storage for Wal persistence. Iam getting below
warnings in driver logs.

Is it it something related to Compatibility/throttling issues with storage?

java.lang.IllegalStateException: File exists and there is no append support!
        at
org.apache.spark.streaming.util.HdfsUtils$.getOutputStream(HdfsUtils.scala:35)
        at
org.apache.spark.streaming.util.FileBasedWriteAheadLogWriter.org$apache$spark$streaming$util$FileBasedWriteAheadLogWriter$$stream$lzycompute(FileBasedWriteAheadLogWriter.scala:33)
        at
org.apache.spark.streaming.util.FileBasedWriteAheadLogWriter.org$apache$spark$streaming$util$FileBasedWriteAheadLogWriter$$stream(FileBasedWriteAheadLogWriter.scala:33)
        at
org.apache.spark.streaming.util.FileBasedWriteAheadLogWriter.<init>(FileBasedWriteAheadLogWriter.scala:41)
        at
org.apache.spark.streaming.util.FileBasedWriteAheadLog.getLogWriter(FileBasedWriteAheadLog.scala:217)
        at
org.apache.spark.streaming.util.FileBasedWriteAheadLog.write(FileBasedWriteAheadLog.scala:86)
        at
org.apache.spark.streaming.util.FileBasedWriteAheadLog.write(FileBasedWriteAheadLog.scala:48)
        at
org.apache.spark.streaming.util.BatchedWriteAheadLog.org$apache$spark$streaming$util$BatchedWriteAheadLog$$flushRecords(BatchedWriteAheadLog.scala:173)
        at org.apache.spark



-----
Sai Ganesh
--
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