Behavior on hard power shutdown
-------------------------------
Key: LUCENE-1044
URL: https://issues.apache.org/jira/browse/LUCENE-1044
Project: Lucene - Java
Issue Type: Bug
Components: Index
Affects Versions: 1.9
Environment: Windows Server 2003, Standard Edition, Sun Hotspot Java
1.5
Reporter: venkat rangan
Fix For: 1.9
When indexing a large number of documents, upon a hard power failure (e.g.
pull the power cord), the index seems to get corrupted. We start a Java
application as an Windows Service, and feed it documents. In some cases (after
an index size of 1.7GB, with 30-40 index segment .cfs files) , the following is
observed.
The 'segments' file contains only zeros. Its size is 265 bytes - all bytes are
zeros.
The 'deleted' file also contains only zeros. Its size is 85 bytes - all bytes
are zeros.
Before corruption, the segments file and deleted file appear to be correct.
After this corruption, the index is corrupted and lost.
This is a problem observed in Lucene 1.4.3. We are not able to upgrade our
customer deployments to 1.9 or later version, but would be happy to back-port a
patch, if the patch is small enough and if this problem is already solved.
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