Loading...
Please wait, while we are loading the content...
Similar Documents
A comparative study of log-only and in-place update based temporal object database systems (2000).
| Content Provider | CiteSeerX |
|---|---|
| Author | Nørvåg, Kjetil Ag, Kjetil Nrv |
| Abstract | In most current database systems, data is updated in-place. In order to support recovery and increase performance, writeahead logging is used. This logging defers the in-place updates, however sooner or later, the updates have to be applied to the database. This often results in non-sequential writing of lots of pages, creating a write bottleneck. To avoid this, another approach is to eliminate the database completely, and use a log-only approach. The log is written contiguously to the disk, in a no-overwrite way, in large blocks. The log-only approach is particularly interesting for transaction-time object database systems (TODBs). While previous approaches to TODBs have been page based, i.e., when an object has been modied, the whole page the object resides on has to be written back, our approach is object based. One of the objections against operating at object granularity is that the read cost will be prohibitively high. We will in this paper show that this is not necessarily tru... |
| File Format | |
| Publisher Date | 2000-01-01 |
| Access Restriction | Open |
| Subject Keyword | In-place Update Comparative Study Temporal Object Database System Log-only Approach Read Cost Paper Show Large Block No-overwrite Way Write Bottleneck Writeahead Logging Transaction-time Object Database System Object Granularity Updated In-place Non-sequential Writing Current Database System Previous Approach Whole Page |
| Content Type | Text |
| Resource Type | Article |
