[hbase] null regioninfo breaks meta scanner
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Key: HADOOP-2307
URL: https://issues.apache.org/jira/browse/HADOOP-2307
Project: Hadoop
Issue Type: Bug
Reporter: stack
Priority: Minor
Fix For: 0.16.0
>From pauls master log last night:
{code}
...
2007-11-28 23:37:46,927 DEBUG hbase.HMaster - HMaster.metaScanner scanner:
-915674454874775062 regioninfo: {regionname:
postlog,img223/8154/img002qk3.jpg,1196321112639, startKey:
<img223/8154/img002qk3.jpg>, tableDesc: {name: postlog, families:
{cookie:={name: cookie, max versions: 1, compression: NONE, in memory: false,
max length: 2147483647, bloom filter: none}, ip:={name: ip, max versions: 1,
compression: NONE, in memory: false, max length: 2147483647, bloom filter:
none}}}}, server: 38.99.76.16:60020, startCode: 1196311487014
2007-11-28 23:37:46,927 DEBUG hbase.HMaster - Checking
postlog,img223/8154/img002qk3.jpg,1196321112639 is assigned
2007-11-28 23:37:46,928 DEBUG hbase.HMaster - HMaster.metaScanner scanner:
-915674454874775062 regioninfo: {regionname:
postlog,img225/2462/babyyua1.jpg,1196315340001, startKey:
<img225/2462/babyyua1.jpg>, tableDesc: {name: postlog, families:
{cookie:={name: cookie, max versions: 1, compression: NONE, in memory: false,
max length: 2147483647, bloom filter: none}, ip:={name: ip, max versions: 1,
compression: NONE, in memory: false, max length: 2147483647, bloom filter:
none}}}}, server: 38.99.76.101:60020, startCode: 1196311489607
2007-11-28 23:37:46,929 DEBUG hbase.HMaster - Checking
postlog,img225/2462/babyyua1.jpg,1196315340001 is assigned
2007-11-28 23:37:46,929 DEBUG hbase.HMaster - Checking
postlog,img225/2462/babyyua1.jpg,1196315340001 is assigned
2007-11-28 23:37:46,930 ERROR hbase.HMaster - Unexpected exception
java.lang.IllegalArgumentException: Can't build a writable with empty bytes
array
at org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:78)
at org.apache.hadoop.hbase.HMaster$BaseScanner.scanRegion(HMaster.java:238)
at
org.apache.hadoop.hbase.HMaster$MetaScanner.scanOneMetaRegion(HMaster.java:695)
at
org.apache.hadoop.hbase.HMaster$MetaScanner.maintenanceScan(HMaster.java:758)
at org.apache.hadoop.hbase.HMaster$BaseScanner.chore(HMaster.java:202)
at org.apache.hadoop.hbase.Chore.run(Chore.java:58)
...
{code}
Eventually the bad regioninfo seems to go away because scans start running to
completion again.
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