Ensure 'debug_print_rewritten' is disabled

LowLevel 1Automatedyugabytedb

Description

The debug_print_rewritten setting enables printing the query rewriter output for each executed query. These messages are emitted at the LOG message level. Unless directed otherwise by your organization's logging policy, it is recommended this setting be disabled by setting it to off. Runs ysqlsh (add the YugabyteDB bin directory to PATH) against PGHOST/PGPORT (default 127.0.0.1:5433) as PGUSER (default yugabyte); supply the password through PGPASSWORD or ~/.pgpass.

How it is checked

Audit method: SQL query

sql_query

out=$(ysqlsh -h "${PGHOST:-127.0.0.1}" -p "${PGPORT:-5433}" -U "${PGUSER:-yugabyte}" -d "${PGDATABASE:-yugabyte}" -tAc "SHOW debug_print_rewritten" 2>/dev/null) || exit 1; printf '%s\n' "$out"

Expected output: off

How it is fixed

Fix method: Guidance or infrastructure patch

Set it with the YB-TServer GFlag --ysql_pg_conf_csv="debug_print_rewritten='off'" on every YB-TServer and restart it.

Properties

Operating systems: Any
Tags: yugabytedblogging
Reference: CIS YugabyteDB Benchmark v2.0.0 - 3.1.14 Ensure 'debug_print_rewritten' is disabled

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target yugabytedb