RegionServer should refuse to be assigned a region that use LZO when LZO isn't
available
----------------------------------------------------------------------------------------
Key: HBASE-2514
URL: https://issues.apache.org/jira/browse/HBASE-2514
Project: Hadoop HBase
Issue Type: Bug
Reporter: Benoit Sigoure
If a RegionServer is assigned a region that uses LZO but the required libraries
aren't installed on that RegionServer, the server will fail unexpectedly after
throwing a {{java.lang.ClassNotFoundException:
com.hadoop.compression.lzo.LzoCodec}}
{code}
2010-05-04 16:57:27,258 FATAL
org.apache.hadoop.hbase.regionserver.MemStoreFlusher: Replay of hlog required.
Forcing server shutdown
org.apache.hadoop.hbase.DroppedSnapshotException: region: tsdb,,1273011287339
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:994)
at
org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:887)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:255)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.run(MemStoreFlusher.java:142)
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
com.hadoop.compression.lzo.LzoCodec
at
org.apache.hadoop.hbase.io.hfile.Compression$Algorithm$1.getCodec(Compression.java:91)
at
org.apache.hadoop.hbase.io.hfile.Compression$Algorithm.getCompressor(Compression.java:196)
at
org.apache.hadoop.hbase.io.hfile.HFile$Writer.getCompressingStream(HFile.java:388)
at
org.apache.hadoop.hbase.io.hfile.HFile$Writer.newBlock(HFile.java:374)
at
org.apache.hadoop.hbase.io.hfile.HFile$Writer.checkBlockBoundary(HFile.java:345)
at org.apache.hadoop.hbase.io.hfile.HFile$Writer.append(HFile.java:517)
at org.apache.hadoop.hbase.io.hfile.HFile$Writer.append(HFile.java:482)
at
org.apache.hadoop.hbase.regionserver.Store.internalFlushCache(Store.java:558)
at org.apache.hadoop.hbase.regionserver.Store.flushCache(Store.java:522)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:979)
... 3 more
Caused by: java.lang.ClassNotFoundException: com.hadoop.compression.lzo.LzoCodec
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:315)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330)
at java.lang.ClassLoader.loadClass(ClassLoader.java:250)
at
org.apache.hadoop.hbase.io.hfile.Compression$Algorithm$1.getCodec(Compression.java:87)
... 12 more
{code}
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