[jira] [Created] (HBASE-24734) Wrong comparator opening Region when 'split-to-WAL' enabled.

["Michael Stack (Jira)" <ji...@apache.org>]

Michael Stack created HBASE-24734:
-------------------------------------

             Summary: Wrong comparator opening Region when 'split-to-WAL' enabled.
                 Key: HBASE-24734
                 URL: https://issues.apache.org/jira/browse/HBASE-24734
             Project: HBase
          Issue Type: Sub-task
          Components: HFile, MTTR
            Reporter: Michael Stack


Came across this when we were testing the 'split-to-hfile' feature running ITBLL:

 
{code:java}
2020-07-10 10:16:49,983 INFO org.apache.hadoop.hbase.regionserver.HRegion: Closing region hbase:meta,,1.15882307402020-07-10 10:16:49,997 INFO org.apache.hadoop.hbase.regionserver.HRegion: Closed hbase:meta,,1.15882307402020-07-10 10:16:49,998 WARN org.apache.hadoop.hbase.regionserver.handler.AssignRegionHandler: Fatal error occurred while opening region hbase:meta,,1.1588230740, aborting...java.lang.IllegalArgumentException: Invalid range: IntegrationTestBigLinkedList,,1594350463222.8f89e01a5245e79946e22d8a8ab4698b. > IntegrationTestBigLinkedList,\x10\x02J\xA1,1594349535271.be24dc276f686e6dcc7fb9d3f91c8387.        at org.apache.hadoop.hbase.client.RegionInfoBuilder$MutableRegionInfo.containsRange(RegionInfoBuilder.java:300)        at org.apache.hadoop.hbase.regionserver.HStore.tryCommitRecoveredHFile(HStore.java:1111)        at org.apache.hadoop.hbase.regionserver.HRegion.loadRecoveredHFilesIfAny(HRegion.java:5442)        at org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionInternals(HRegion.java:1010)        at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:950)        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7490)        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegionFromTableDir(HRegion.java:7448)        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7424)        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7382)        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7333)        at org.apache.hadoop.hbase.regionserver.handler.AssignRegionHandler.process(AssignRegionHandler.java:135)        at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)        at java.base/java.lang.Thread.run(Thread.java:834)2020-07-10 10:16:50,005 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: ***** ABORTING region server hbasedn149.example.org,16020,1594375563853: Failed to open region hbase:meta,,1.1588230740 and can not recover *****java.lang.IllegalArgumentException: Invalid range: IntegrationTestBigLinkedList,,1594350463222.8f89e01a5245e79946e22d8a8ab4698b. > IntegrationTestBigLinkedList,\x10\x02J\xA1,1594349535271.be24dc276f686e6dcc7fb9d3f91c8387.

 {code}
Seems basic case of wrong comparator. Below passes if I use the meta comparator
{code:java}
 @Test
public void testBinaryKeys() throws Exception {
  Set<Cell> set = new TreeSet<>(CellComparatorImpl.COMPARATOR);
  final byte [] fam = Bytes.toBytes("col");
  final byte [] qf = Bytes.toBytes("umn");
  final byte [] nb = new byte[0];
  Cell [] keys = {
      createByteBufferKeyValueFromKeyValue(
          new KeyValue(Bytes.toBytes("aaaaa,\u0000\u0000,2"), fam, qf, 2, nb)),
      createByteBufferKeyValueFromKeyValue(
          new KeyValue(Bytes.toBytes("aaaaa,\u0001,3"), fam, qf, 3, nb)),
      createByteBufferKeyValueFromKeyValue(
          new KeyValue(Bytes.toBytes("aaaaa,,1"), fam, qf, 1, nb)),
      createByteBufferKeyValueFromKeyValue(
          new KeyValue(Bytes.toBytes("aaaaa,\u1000,5"), fam, qf, 5, nb)),
      createByteBufferKeyValueFromKeyValue(
          new KeyValue(Bytes.toBytes("aaaaa,a,4"), fam, qf, 4, nb)),
      createByteBufferKeyValueFromKeyValue(
          new KeyValue(Bytes.toBytes("a,a,0"), fam, qf, 0, nb)),
  };
  // Add to set with bad comparator
  Collections.addAll(set, keys);
  // This will output the keys incorrectly.
  boolean assertion = false;
  int count = 0;
  try {
    for (Cell k: set) {
      assertTrue("count=" + count + ", " + k.toString(), count++ == k.getTimestamp());
    }
  } catch (AssertionError e) {
    // Expected
    assertion = true;
  }
  assertTrue(assertion);
  // Make set with good comparator
  set = new TreeSet<>(CellComparatorImpl.META_COMPARATOR);
  Collections.addAll(set, keys);
  count = 0;
  for (Cell k: set) {
    assertTrue("count=" + count + ", " + k.toString(), count++ == k.getTimestamp());
  }
}{code}



--
This message was sent by Atlassian Jira
(v8.3.4#803005)