[jira] [Created] (HBASE-23581) Creating table gets stuck when specifying an invalid split policy as METADATA

["Toshihiro Suzuki (Jira)" <ji...@apache.org>]

Toshihiro Suzuki created HBASE-23581:
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             Summary: Creating table gets stuck when specifying an invalid split policy as METADATA
                 Key: HBASE-23581
                 URL: https://issues.apache.org/jira/browse/HBASE-23581
             Project: HBase
          Issue Type: Bug
         Environment: HDP-3.1.0
            Reporter: Toshihiro Suzuki
            Assignee: Toshihiro Suzuki


We can reproduce this issue as follows:
{code}
create 'test', "f", {METADATA => {'hbase.regionserver.region.split.policy' => 'UNDEFINED'}}
{code}

After running this, creating table will get stuck. And it looks like this is because opening region fails with ClassNotFoundException:
{code}
2019-12-16 06:45:03,671 ERROR [RS_OPEN_REGION-regionserver/c126-node2:16020-17] handler.OpenRegionHandler: Failed open of region=test,,1576477039045.7435965ddb2229c62d926b3ee963dcf3.
java.io.IOException: Unable to load configured region split policy 'UNDEFINED' for table 'test'
        at org.apache.hadoop.hbase.regionserver.RegionSplitPolicy.getSplitPolicyClass(RegionSplitPolicy.java:132)
        at org.apache.hadoop.hbase.regionserver.HRegion.checkClassLoading(HRegion.java:7162)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7083)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7043)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7015)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6973)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6924)
        at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:283)
        at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:108)
        at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: UNDEFINED
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:264)
        at org.apache.hadoop.hbase.regionserver.RegionSplitPolicy.getSplitPolicyClass(RegionSplitPolicy.java:127)
        ... 12 more
{code}

We should have sanity checks for the properties specified in METADATA.



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