With gpbackup 1.21, the below error may be observed when attempting a backup.
20220114:10:29:18 gpbackup:gpadmin:mdw.domain.local:158885-[DEBUG]:-Unable to execute plugin /usr/local/greenplum-db/bin/gpbackup_ddboost_plugin on segment 1 on host sdw1.domain.local with error exit status 1: /usr/local/greenplum-db/bin/gppbackup_ddboost_plugin: /lib64/libc.so.6 version 'GLIBC_2.14' not found (required by /usr/local/greenplum-db/bin/gpbackup_ddboost_plugin)
This article describes an issue that can occur under the following circumstances:
1. The OS is RHEL/Centos 6.X, running GLIBC version less than 2.14. RHEL/Centos 7.X should not encounter this issue.
*GLIBC version can be checked via the command 'ldd --version ldd'
2. The gpbackup version in use is 1.21.
This is a known issue with the ddboost plugin version included with gpbackup version 1.21. This release unexpectedly has a dependency on GLIBC 2.14 wheras most other releases (1.20, 1.23, etc) require version 2.12.
The customer should downgrade to 1.20 or upgrade to 1.23 to avoid encountering this issue.