added hive_tables_row_counts.sh

hive_tables_row_counts.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+#  vim:ts=4:sts=4:sw=4:et
+#
+#  Author: Hari Sekhon
+#  Date: 2019-12-06 11:10:26 +0000 (Fri, 06 Dec 2019)
+#
+#  https://github.com/harisekhon/bash-tools
+#
+#  License: see accompanying Hari Sekhon LICENSE file
+#
+#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
+#
+#  https://www.linkedin.com/in/harisekhon
+#
+
+# Get row counts for all Hive tables in all databases via beeline
+#
+# TSV Output format:
+#
+# <database>    <table>     <row_count>
+#
+# Tested on Hive 1.1.0 on CDH 5.10, 5.16
+
+# you will need to comment out / remove '-o pipefail' below to skip errors if you aren't authorized to use
+# any of the databases to avoid the script exiting early upon encountering any authorization error such:
+#
+# ERROR: AuthorizationException: User '<user>@<domain>' does not have privileges to access: default   Default Hive database.*.*
+#
+set -eu -o pipefail
+[ -n "${DEBUG:-}" ] && set -x
+srcdir="$(dirname "$0")"
+
+opts="--silent=true --outputformat=tsv2"
+
+# shellcheck disable=SC2086
+"$srcdir/hive_list_tables.sh" |
+while read -r db table; do
+    printf '%s\t%s\t' "$db" "$table"
+    "$srcdir/beeline.sh" $opts -e "SELECT COUNT(*) FROM \`$db\`.\`$table\`" "$@" |
+    tail -n +2
+done