PANIC: Could not locate a valID checkpoint record
如何解决这个问题?
它正在查找可能不存在或已损坏的事务日志中的检查点记录。您可以通过运行以确定是否是这种情况:pg_resetxlog DATADIR
如果事务日志损坏,您会看到如下消息:
The database server was not shut down cleanly. resetting the
transaction log might cause data to be lost. If you want to proceed
anyway,use -f to force reset.
然后,您可以按照说明运行,并使用-f强制更新:
pg_resetxlog -f DATADIR
这应该重置事务日志,但是它可能会使数据库处于不确定状态,如PostgreSQL documentation on
pg_resetxlog
中所述:
总结If pg_resetxlog complains that it cannot determine valID data for pg_control,you can force it to proceed anyway by specifying the
-f
(force) switch. In this case plausible values will be substituted for the missing data. Most of the fIElds can be expected to match,but manual assistance might be needed for the next OID,next transaction ID and epoch,next multitransaction ID and offset,and WAL starting address fIElds. These fIElds can be set using the switches discussed below. If you are not able to determine correct values for all these fIElds,-f
can still be used,but the recovered database must be treated with even more suspicion than usual: an immediate dump and reload is imperative. Do not execute any data-modifying operations in the database before you dump,as any such action is likely to make the corruption worse.
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