CODEWITHSUNDEEP
hadoophivebigdata
Tomasz Krol
Tomasz Krol

Reputation: 668

Does standalone metastore 3.0 need Hadoop?

I was just trying to setup Standalone Metastore 3.0, however seems like it requires also Hadoop. My understanding was that the whole point for standalone metastore that is just a service which doesn't require Hive or Hadoop. Thus my question is, if it's possible to run Metastore 3.0 without Hadoop?

When I try to run metastore service, getting following error :

Cannot find hadoop installation: \$HADOOP_HOME or \$HADOOP_PREFIX must be set or hadoop must be in the path

Here is the code in the bash script that checks hadoop installation:

# check for hadoop in the path
HADOOP_IN_PATH=`which hadoop 2>/dev/null`
if [ -f ${HADOOP_IN_PATH} ]; then
  HADOOP_DIR=`dirname "$HADOOP_IN_PATH"`/..
fi
# HADOOP_HOME env variable overrides hadoop in the path
HADOOP_HOME=${HADOOP_HOME:-${HADOOP_PREFIX:-$HADOOP_DIR}}
if [ "$HADOOP_HOME" == "" ]; then
  echo "Cannot find hadoop installation: \$HADOOP_HOME or \$HADOOP_PREFIX must be set or hadoop must be in the path";
  exit 4;
fi

Upvotes: 2

Views: 1016

Answers (1)

kc2001
kc2001

Reputation: 5247

According to this article,

"...while I did manage to run the Hive Standalone Metastore without installing hadoop, I did have to install (but not run) hadoop in order to use the schematool provided with hive for creating the hive RDMBS schema. This is due to library dependencies."

Upvotes: 4

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