在数据库服务器上使用oid2name,将报错oid对应的name找出来。这里假设db库是xxdbname [postgres@local ~]$ /usr/local/pgsql12/bin/oid2name -d 'xxdbname' -f 2663 From database "xxdbname": Filenode Table Name ------------------------------
back=# select max(create_time) from public.tbl_index_table where create_time>='2010-10-08'; ERROR: could not read block 41381 of relation 16779/24769/24938: read only 0 of 8192 bytes 看到这个错误信息,首先想到的是表 tbl_index_table 上有坏块,估计需要表重建下。 2、--查看执行计划 back=...
pg_verify_checksums: couldnotreadblock0infile "/data01/digoal/pg_root8009/base/13285/13120_fsm":read1023of8192 staticvoidscan_file(constchar*fn, BlockNumber segmentno) { PGAlignedBlock buf; PageHeaderheader= (PageHeader) buf.data;intf; BlockNumber blockno; f =open(fn, O_RDONLY | PG_BINARY...
back=# select max(create_time) from public.tbl_index_table where create_time>='2010-10-08'; ERROR: could not read block 41381 of relation 16779/24769/24938: read only 0 of 8192 bytes 看到这个错误信息,首先想到的是表 tbl_index_table 上有坏块,估计需要表重建下。 2、--查看执行计划 back=...
ERROR: could not read block 3 in file "base/16397/1255": read only 0 of 8192 bytes zjh@test=# select * from pg_proc; -- 因为系统表通过BKI初始化,所以定义存在 oid | proname | pronamespace | proowner | prolang | procost | prorows | provariadic | prosupport | prokind | prosecdef...
27、t_pkey);查询结果:PRIMARYKEY(dept_id)然后重新创建这个约束:Altertabledropconstrianttb_dept_pkey;Altertableaddconstrainttb_dept_pkeyPRIMARYKEY(dept_id);couldnotreadblock190infilebase/272816/309624该问题的解决方法与2.2.2节的问题完全相同。couldnotopenfilebase/272816/379923:Nosuchfileordirectory如果日志...
本文介绍ECS实例上的PostgreSQL如何结合pgpool实现读写分离,您也可以通过RDS PostgreSQL实例及只读实例简化操作步骤。 背景信息 不使用pgpool实现数据库的高可用时,pgpool自身是无状态的,性能损耗很小,同时还支持横向扩展,因此搭配自身具有高可用架构的RDS PostgreSQL实例,可以方便快捷地实现...
/* next block size to allocate */ Size allocChunkLimit; /* effective chunk size limit */ AllocBlock keeper; /* keep this block over resets */ /* freelist this context could be put in, or -1 if not a candidate: */ int freeListIndex; /* index in context_freelists[], or -1 *...
errmsg("could not fsync file \"%s\": %m", tmppath))); } pgstat_report_wait_end(); 从代码中可以看出WAL清零操作是先做异步写,每次写一个page block,直到循环写完,然后再一次性做fsync,异步写一般很快,当系统负载很低的时候,异步写8KB的数据响应时间是us级别,当系统负载比较重的时候,一个异步IO延迟...
This stack entry is marked with the special transaction block state TBLOCK_PARALLEL_INPROGRESS so that it's not confused with an ordinary toplevel transaction. The XID of this TransactionState is set to the XID of the innermost currently-active subtransaction in the initiating backend. The initi...