I think it might be legit to store an empty value, empty key = not gonna happen.
but if the key has enough data in it, eg: a delete tombstone, the value might be not interesting, so why store a placeholder? what particular circumstance is this happening under? I dont want to 'fix' hfile by allowing empty/null values only to mask a different error that you are getting... On Sat, Apr 4, 2009 at 8:31 PM, Andrew Purtell (JIRA) <[email protected]>wrote: > > [ > https://issues.apache.org/jira/browse/HBASE-1309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel] > > Andrew Purtell updated HBASE-1309: > ---------------------------------- > > Summary: HFile catches key in Memcache with empty value (was: > HFile$Writer.checkValue: IOException: Value cannot be null or empty) > > Changed issue title after some initial digging in the code. > > Null values is one thing. Should empty values just be ignored rather than > cause exceptions? > > > HFile catches key in Memcache with empty value > > ---------------------------------------------- > > > > Key: HBASE-1309 > > URL: https://issues.apache.org/jira/browse/HBASE-1309 > > Project: Hadoop HBase > > Issue Type: Bug > > Affects Versions: 0.20.0 > > Reporter: Andrew Purtell > > Attachments: hbase-hadoop-regionserver-nashua.zip > > > > > > 2009-04-05 02:12:56,497 FATAL > org.apache.hadoop.hbase.regionserver.MemcacheFlusher: Replay of hlog > required. Forcing server shutdown > > org.apache.hadoop.hbase.DroppedSnapshotException: region: > content,,1238896745127 > > at > org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:878) > > at > org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:771) > > at > org.apache.hadoop.hbase.regionserver.MemcacheFlusher.flushRegion(MemcacheFlusher.java:229) > > at > org.apache.hadoop.hbase.regionserver.MemcacheFlusher.run(MemcacheFlusher.java:139) > > Caused by: java.io.IOException: Value cannot be null or empty > > at > org.apache.hadoop.hbase.io.hfile.HFile$Writer.checkValue(HFile.java:485) > > at > org.apache.hadoop.hbase.io.hfile.HFile$Writer.append(HFile.java:447) > > at > org.apache.hadoop.hbase.regionserver.Store.internalFlushCache(Store.java:501) > > at > org.apache.hadoop.hbase.regionserver.Store.flushCache(Store.java:463) > > at > org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:863) > > ... 3 more > > -- > This message is automatically generated by JIRA. > - > You can reply to this email to add a comment to the issue online. > >
