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Editor to share with you the example analysis of the EResetJournal class, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

The EResetJournal class description:

Class EResetJournal: public LogEvent {}

EResetJournal class methods:

EResetJournal::replay (mds)

| | _ _ execute the wipe operation of sessionmap, that is, mds- > sessionmap.wipe () |

| | _ _ reset inotable, i.e. mds- > inotable- > replay_reset () |

| | _ _ if the mds node is located in the root node of mdsmap |

| | _ _ get the root CDir object from MDCache, that is, mds- > mdcache- > get_root ()-> get_or_open_dirfrag () |

| | _ _ adjust the subtree auth of root CDir, that is, mds- > mdcache- > adjust_subtree_auth () |

| | _ _ get the CDir object of the current directory from MDCache, namely: mds- > mdcache- > get_myin ()-> get_or_open_dirfrag () |

| | _ _ adjust the subtree auth of the CDir in the current directory, that is, mds- > mdcache- > adjust_subtree_auth () |

| | _ _ recalculate auth bits, that is, mds- > mdcache- > recalc_auth_bits () |

The above is all the content of this article "sample Analysis of EResetJournal Class". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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