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Kamran February 2016

Error exporting data from Google Cloud Bigtable

While going through the Google docs, I'm getting the below stack trace on the final export command (executed from the master instance with appropriate env variables set).

${HADOOP_HOME}/bin/hadoop jar ${HADOOP_BIGTABLE_JAR} export-table -libjars ${HADOOP_BIGTABLE_JAR} <table-name> <gs://bucket>

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/hadoop/hbase-install/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/hadoop/hadoop-install/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
2016-02-08 23:39:39,068 INFO  [main] mapreduce.Export: versions=1, starttime=0, endtime=9223372036854775807, keepDeletedCells=false
2016-02-08 23:39:39,213 INFO  [main] gcs.GoogleHadoopFileSystemBase: GHFS version: 1.4.4-hadoop2
java.lang.IllegalAccessError: tried to access field sun.security.ssl.Handshaker.localSupportedSignAlgs from class sun.security.ssl.ClientHandshaker
    at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:278)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:913)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:849)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1035)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1344)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371)
    at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnect        


Les Vogel - Google DevRel February 2016

  1. You can spin up a Dataproc cluster w/ Bigtable enabled following these instructions.

  2. ssh to the master by ./cluster.sh ssh

  3. hbase shell to verify that all is in order.

  4. hadoop jar ${HADOOP_BIGTABLE_JAR} export-table -libjars ${HADOOP_BIGTABLE_JAR} <table-name> gs://<bucket>/some-folder

  5. gsutil ls gs://<bucket>/some-folder/** and see if _SUCCESS exists. If so, the remaining files are your data.

  6. exit from your cluster master

  7. ./cluster.sh delete to get rid of the cluster, if you no longer require it.

You ran into a problem with the weekly java runtime update, that has been corrected.

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Asked in February 2016
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