[HBASE-13262] ResultScanner doesn't return all rows in Scan

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.1.0, 2.0.0
• Fix Version/s: 1.0.1, 1.1.0, 0.98.12, 2.0.0
• Component/s: Client

Environment

Single node, pseduo-distributed 1.1.0-SNAPSHOT

• Hadoop Flags: Reviewed
• Assignee: Josh Elser
• Reporter: Josh Elser
• Created: 17/Mar/15 15:27
• Updated: 21/Mar/16 16:22
• Resolved: 29/Mar/15 02:35

Description

Tried to write a simple Java client again 1.1.0-SNAPSHOT.

• Write 1M rows, each row with 1 family, and 10 qualifiers (values [0-9]), for a total of 10M cells written
• Read back the data from the table, ensure I saw 10M cells

Running it against 04ac1891 (and earlier) yesterday, I would get ~20% of the actual rows. Running against 1.0.0, returns all 10M records as expected.

Code I was running for the curious.

Issue Links

• is related to: HBASE-13292 Undo parent from 0.98 and 1.0: setting hbase.client.scanner.max.result.size is considered harmful
• is related to: HBASE-11544 [Ergonomics] hbase.client.scanner.caching is dogged and will try to return batch even if it means OOME
• is related to: HBASE-13446 Add docs warning about missing data for downstream on versions prior to HBASE-13262
• relates to: DRILL-4271 Drill query does not return all results from HBase when the Hbase contains more than 6 columns
• supercedes: HBASE-13303 Fix size calculation of results on the region server

Sub-Tasks

• Fix size calculation of results on the region server: Closed
• 0.98 and 1.0: Remove client side result size calculation: Closed
• Update ClientSmallScanner and ClientSmallReversedScanner: Closed