Mujtaba Chohan created PHOENIX-2696:
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Summary: Major compaction generating wrong guideposts
Key: PHOENIX-2696
URL: https://issues.apache.org/jira/browse/PHOENIX-2696
Project: Phoenix
Issue Type: Bug
Reporter: Mujtaba Chohan
Priority: Minor
With empty stats table. _Update Statistics_ correctly generate no guideposts in
SYSTEM.STATS table for a table containing 0 rows (this table is major compacted
after 200K rows upserted/deleted)
Again with empty stats table, after _major compaction_ of this table, following
stats are generated. These stats are generated even after multiple major
compactions (guidepost width is set to 5M)
{code}
+---------------------+----------------+-----------------+--------------------+--------------------------+------------------------+
| PHYSICAL_NAME | COLUMN_FAMILY | GUIDE_POST_KEY | GUIDE_POSTS_WIDTH |
LAST_STATS_UPDATE_TIME | GUIDE_POSTS_ROW_COUNT |
+---------------------+----------------+-----------------+--------------------+--------------------------+------------------------+
| PERFORMANCE_200000 | | | null |
2016-02-19 01:02:50.706 | null |
| PERFORMANCE_200000 | STATS | [B@21526f6c | 5000063 |
| 69100 |
| PERFORMANCE_200000 | STATS | [B@49f5c307 | 5000010 |
| 68975 |
| PERFORMANCE_200000 | USAGE | [B@299266e2 | 5000060 |
| 81022 |
| PERFORMANCE_200000 | USAGE | [B@5471388b | 5000064 |
| 78177 |
| PERFORMANCE_200000 | USAGE | [B@66ea1466 | 5000066 |
| 80568 |
| PERFORMANCE_200000 | USAGE | [B@1601e47 | 5000020 |
| 78600 |
| PERFORMANCE_200000 | USAGE | [B@3bffddff | 5000019 |
| 80377 |
| PERFORMANCE_200000 | USAGE | [B@66971f6b | 5000016 |
| 78591 |
+---------------------+----------------+-----------------+--------------------+--------------------------+------------------------+
{code}
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