# PXC 8.0 - may not be safe to bootstrap the cluster from this node & and set safe\_to\_bootstrap to 1 **URL:** \ **Category:** Percona XtraDB Cluster\ **Tags:** mysql, percona\ **Created:** [March 2, 2021, 10:42am UTC](https://forums.percona.com/t/pxc-8-0-may-not-be-safe-to-bootstrap-the-cluster-from-this-node-and-set-safe-to-bootstrap-to-1/9504 "2021-03-02T10:42:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![AneeshBabu](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/aneeshbabu/32/1393_2.png) [@AneeshBabu](https://forums.percona.com/u/AneeshBabu)\ **Post date:** [March 2, 2021, 10:42am UTC](https://forums.percona.com/t/pxc-8-0-may-not-be-safe-to-bootstrap-the-cluster-from-this-node-and-set-safe-to-bootstrap-to-1/9504/1 "2021-03-02T10:42:35Z")
Hi there, I have a 3 node cluster( `pxc 8.0` ) ,A,B & C. when bootstrapping the node` A` facing the below error.So i started bootstrapping the nodes `B,C` similarly but no luck with the same error. 1. How do i find the last one(`node`) to leave the cluster…? 2. To force cluster bootstrap at any of the 3 nodes(`A,B & C`) by editing the `/var/lib/mysql /grastate.date` file.Would it be a data loss if so,how to recover the data…? 3. Is it `safe_to_bootstrap` any of the nodes…? > 2021-03-02T15:40:32.447442+05:30 0 [Note] [MY-000000] [WSREP] Starting replication > 2021-03-02T15:40:32.447548+05:30 0 [Note] [MY-000000] [Galera] Connecting with bootstrap option: 1 > 2021-03-02T15:40:32.447643+05:30 0 [Note] [MY-000000] [Galera] Setting GCS initial position to 3788d9c7-141e-11eb-969b-da352344b906:536 **2021-03-02T15:40:32.447797+05:30 0 [ERROR] [MY-000000] [Galera] It may not be safe to bootstrap the cluster from this node. It was not the last one to leave the cluster and may not contain all the updates. To force cluster bootstrap with this node, edit the grastate.dat file manually and set safe\_to\_bootstrap to 1 .** > ``` > 2021-03-02T15:40:32.447814+05:30 0 [ERROR] [MY-000000] [WSREP] Provider/Node (gcomm://192.168.0.1,192.168.0.2,192.168.0.3) failed to establish connection with cluster (reason: 7) > 2021-03-02T15:40:32.447831+05:30 0 [ERROR] [MY-010119] [Server] Aborting > 2021-03-02T15:40:32.448007+05:30 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.20-11.2) Percona XtraDB Cluster (GPL), Release rel11, Revision 9132e55, WSREP version 26.4.3. > 2021-03-02T15:40:32.448309+05:30 0 [Note] [MY-000000] [Galera] dtor state: CLOSED > 2021-03-02T15:40:32.448347+05:30 0 [Note] [MY-000000] [Galera] MemPool(TrxHandleSlave): hit ratio: 0, misses: 0, in use: 0, in pool: 0 > 2021-03-02T15:40:32.450297+05:30 0 [Note] [MY-000000] [Galera] apply mon: entered 0 > 2021-03-02T15:40:32.452439+05:30 0 [Note] [MY-000000] [Galera] apply mon: entered 0 > 2021-03-02T15:40:32.454775+05:30 0 [Note] [MY-000000] [Galera] apply mon: entered 0 > 2021-03-02T15:40:32.454804+05:30 0 [Note] [MY-000000] [Galera] cert index usage at exit 0 > 2021-03-02T15:40:32.454812+05:30 0 [Note] [MY-000000] [Galera] cert trx map usage at exit 0 > 2021-03-02T15:40:32.454819+05:30 0 [Note] [MY-000000] [Galera] deps set usage at exit 0 > 2021-03-02T15:40:32.454830+05:30 0 [Note] [MY-000000] [Galera] avg deps dist 0 > 2021-03-02T15:40:32.454839+05:30 0 [Note] [MY-000000] [Galera] avg cert interval 0 > 2021-03-02T15:40:32.454846+05:30 0 [Note] [MY-000000] [Galera] cert index size 0 > 2021-03-02T15:40:32.454909+05:30 0 [Note] [MY-000000] [Galera] Service thread queue flushed. > 2021-03-02T15:40:32.454935+05:30 0 [Note] [MY-000000] [Galera] wsdb trx map usage 0 conn query map usage 0 > 2021-03-02T15:40:32.454947+05:30 0 [Note] [MY-000000] [Galera] MemPool(LocalTrxHandle): hit ratio: 0, misses: 0, in use: 0, in pool: 0 > 2021-03-02T15:40:32.455891+05:30 0 [Note] [MY-000000] [Galera] Flushing memory map to disk... > > ``` ---
**Author:** ![matthewb](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/matthewb/32/34_2.png) [@matthewb](https://forums.percona.com/u/matthewb)\ **Post date:** [March 2, 2021, 5:04pm UTC](https://forums.percona.com/t/pxc-8-0-may-not-be-safe-to-bootstrap-the-cluster-from-this-node-and-set-safe-to-bootstrap-to-1/9504/2 "2021-03-02T17:04:42Z")
1. Look at the /var/lib/mysql/grastate.dat file on each none. Whichever node was last to leave will have safe\_to\_boostrap: 1. That node is the one you should bootstrap. 2. Restoring backup and re-boostrapping the entire cluster would be the only way to recover. 3. Check the grastate.dat file. Only 1 should be safe.