Can't start a joiner due to SST problems

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  • Can't start a joiner due to SST problems

    I've successfully bootstraped a Cluster (mysqld Ver 5.6.30-76.3-56 for debian-linux-gnu on x86_64 (Percona XtraDB Cluster (GPL), Release rel76.3, Revision aa929cb, WSREP version 25.16, wsrep_25.16)).

    When I start a second node there is a problem with SST via xtrabackup-v2:
    2016-07-29 09:31:58 12359 [Note] WSREP: New cluster view: global state: 3f3843a3-54aa-11e6-af38-5b145f899741:195614, view# 4: Primary, number of nodes: 2, my index: 1, protocol version 3
    2016-07-29 09:31:58 12359 [Warning] WSREP: Gap in state sequence. Need state transfer.
    2016-07-29 09:31:58 12359 [Note] WSREP: Running: 'wsrep_sst_xtrabackup-v2 --role 'joiner' --address 'XYZ.40.39.13' --datadir '/var/lib/mysql/' --defaults-file '/etc/mysql/my.cnf' --defaults-group-suffix '' --parent '12359'  '' '
    2016-07-29 09:31:58 12359 [ERROR] execlp() failed: Permission denied
    2016-07-29 09:31:58 12359 [ERROR] WSREP: Failed to read 'ready <addr>' from: wsrep_sst_xtrabackup-v2 --role 'joiner' --address 'XYZ.40.39.13' --datadir '/var/lib/mysql/' --defaults-file '/etc/mysql/my.cnf' --defaults-group-suffix '' --parent '12359'  ''
        Read: '(null)'
    2016-07-29 09:31:58 12359 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup-v2 --role 'joiner' --address 'XYZ.40.39.13' --datadir '/var/lib/mysql/' --defaults-file '/etc/mysql/my.cnf' --defaults-group-suffix '' --parent '12359'  '' : 1 (Operation not permitted)
    2016-07-29 09:31:58 12359 [ERROR] WSREP: Failed to prepare for 'xtrabackup-v2' SST. Unrecoverable.
    2016-07-29 09:31:58 12359 [ERROR] Aborting
    There is no special config, just:
    wsrep_provider                  = /usr/lib/libgalera_smm.so
    wsrep_cluster_name              = "legacy_cluster"
    wsrep_cluster_address           = "gcomm://ZYX.4.123.242,XYZ.40.39.13"
    wsrep_node_name                 = legacy6
    wsrep_node_address              = XYZ.40.39.13
    #wsrep_sst_method                = xtrabackup-v2
    #wsrep_sst_auth                  = sst:secret
    How could I further debug this problem? I've also tried SST with rsync, but got the same error messages.

  • #2
    Hello, i have the same problem ... How do you solved it ?
    Thanks in advance.


    • #3
      Hmmm... It looks like it's having problems launching the wsrep_sst_xtrabackup-v2 script. Can you check the permissions on the wsrep_sst_xtrabackup-v2 script? Also, the process that mysqld is running under should have the appropriate execute permissions for the script.