Issue #523 - gcache.recover updated #525
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requested changes
Mar 6, 2025
| Determines whether gcache recovery takes place on node startup. If gcache could be recovered successfully, the node can then provide IST to other joining nodes, which is useful when the whole cluster is being restarted. | ||
| Determines whether Gcache recovery takes place on node startup. | ||
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| As of Galera 3.19, Gcache recovery is performed by default in conjunction with entire cluster restarts. At a the first node startup, instead of deleting the Gcache, Galera will attempt to recover the Gcache file to a usable state, preserving the node ability to serve as an IST donor to other nodes that are also starting up at the same time. Now all the remaining nodes in the cluster can join over IST, drastically reducing the total time needed to bring up the entire cluster. Furthermore, the first node never has to become an SST donor, so it is never blocked or burdened by having to perform the SST operation once for each other node in the cluster. |
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because it comes in 3.19 but it only became default in a later reelase
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I try to find that info somewhere... |
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Teemu Ollakka remembered this. Now the version is "wsrep API version 26.4.1". Ok? |
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Description of gcache recovery added. The default value of gcache.recover is now "yes".