Error - Failed To Recover Bdb
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/var/lib/ldap/id2entry.bdb: Unexpected File Type Or Format
hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join commonly caused by moving a database from one database environment the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Subversion Berkeley DB broken,
Db_recover
recovery failed up vote 2 down vote favorite I've got a Subversion repository, backed by the berkeley DB. Occasionally it breaks down due to some locks and such not being released, but this morning it was impossible to recover it using the 'svnadmin recover' command. Instead it failed with the following error: svnadmin: Berkeley DB error for filesystem 'db' while opening 'nodes' table: Invalid argument svnadmin: bdb: file nodes (meta pgno = 0) has LSN [1083][429767]. svnadmin: bdb: end of log is [1083][354707] svnadmin: bdb: db/nodes: unexpected file type or format I'm going to restore the repository from the last known good backup, but it would be good to know if there is a way this repository could be fixed. edit: even the db_recover utility does not make a difference. It shows recovery is completed, but the same error persists when verifying the repository using svnadmin. svn recovery berkeley-db share|improve this question edited Sep 23 '08 at 9:01 asked Sep 23 '08 at 8:16 Linor 74011117 Y U NO accept the best answer? –Notinlist Nov 2 '11 at 12:42 add a comment| 4 Answers 4 active oldest votes up vote 6 down vote I've got a Subversion repository, backed by the berkeley DB. Sorry to hear that. I would suggest that at your earliest convenience, you dump that repository (svnadmin dump) and reload it into a new one backed by FSFS (svnadmin load). share|improve this answer answered Sep 23 '08 at 8:19 Greg Hewgill 510k1088801044 2 While good advice, that hardly has anything to do wit
failure, there are two possible approaches to database recovery: There is no need for recoverability, and all databases can be re-created from scratch. Although these applications may still need transaction protection for other reasons, recovery usually consists of removing the Berkeley DB environment home directory and all files it contains, and then restarting the application. It is necessary to recover information after system or application failure. In this case, recovery processing must be performed on any database environments that were http://stackoverflow.com/questions/119792/subversion-berkeley-db-broken-recovery-failed active at the time of the failure. Recovery processing involves running the db_recover utility or calling the DB_ENV->open method with the DB_RECOVER or DB_RECOVER_FATAL flags. During recovery processing, all database changes made by aborted or unfinished transactions are undone, and all database changes made by committed transactions are redone, as necessary. Database applications must not https://web.stanford.edu/class/cs276a/projects/docs/berkeleydb/ref/transapp/recovery.html be restarted until recovery completes. After recovery finishes, the environment is properly initialized so that applications may be restarted. If performing recovery, there are two types of recovery processing: normal and catastrophic. Which you choose depends on the source for the database and log files you are using to recover. If up-to-the-minute database and log files are accessible on a stable filesystem, normal recovery is usually sufficient. Run the db_recover utility or call the DB_ENV->open method specifying the DB_RECOVER flag. Note this case never includes recovery using archival snapshots of the database environment. For example, you cannot archive databases and log files, restore the backup and then run normal recovery -- you must always run catastrophic recovery when using archived files. If the database or log files have been destroyed or corrupted, or normal recovery fails, catastrophic recovery is required. For example, catastrophic failure includes the case where the disk drive on which the database or log files are stored has b
if you access a file:// URL), then it's using Berkeley DB to access your data. Berkeley DB is a journaling system, meaning that it logs everything it is about http://help.collab.net/topic/faq/repohangs.html to do before it does so. If your process is interrupted (Control-C, or segfault), then a lockfile is left behind, along with a logfile describing unfinished business. Any other process that attempts to access the database will just hang, waiting for the lockfile to disappear. To awaken your repository, you need to ask Berkeley DB to either finish the work, or rewind the database to a error - previous state that is known to be consistent. WARNING: You can seriously corrupt your repository if you run recover and another process accesses the repository. Make absolutely sure you disable all access to the repository before doing this (by shutting down Apache, removing executable permissions from 'svn'). Make sure you run this command as the user that owns and manages the database, and not as error - failed root, else it will leave root-owned files in the db directory that cannot be opened by the non-root user who manages the database, which is typically either you or your Apache process. Also be sure to have the correct umask set when you run recover, since failing to do so will lock out users that are in the group allowed to access the repository. Simply run: svnadmin recover /path/to/repos Once the command has completed, check the permissions in the db directory of the repository. Sometimes "svnadmin recover" doesn't work. You may see it give errors like this: Repository lock acquired. Please wait; recovering the repository may take some time... svnadmin: DB_RUNRECOVERY: Fatal error, run database recovery svnadmin: bdb: Recovery function for LSN 175 7066018 failed on backward pass svnadmin: bdb: PANIC: No such file or directory svnadmin: bdb: PANIC: fatal region error detected; run recovery or like this: Repository lock acquired. Please wait; recovering the repository may take some time... svn: DB_RUNRECOVERY: Fatal error, run database recovery svn: bdb: DB_ENV-< log_flush: LSN of 115/802071 past current end-of-log of 115/731460 svn: bdb: Database environment corrupt; the wrong log files may have been removed or incompatible da