[HBASE-13428] [DOC] Migration to hbase-2.0.0

• Type: Umbrella
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Component/s: migration
• Assignee: Unassigned
• Reporter: Michael Stack
• Created: 08/Apr/15 16:42
• Updated: 07/Apr/20 23:31
• Resolved: 22/Jan/20 03:27

Description

Opening a 2.0 umbrella migration issue. Lets hang off this one any tools and expectations migrating from 1.0 (or earlier) to 2.0. So far there are none that I know of though there is an expectation in HBASE-13373 that hfiles are at least major version 2 and minor version 3. Lets list all such expectations, etc., here.

Issue Links

• is part of: HBASE-13373 Squash HFileReaderV3 together with HFileReaderV2 and AbstractHFileReader; ditto for Scanners and BlockReader, etc.
• is related to: HBASE-19158 Ref guide needs upgrade update
• relates to: HBASE-21008 HBase 1.x can not read HBase2 hfiles due to TimeRangeTracker
• relates to: HBASE-16060 1.x clients cannot access table state talking to 2.0 cluster
• relates to: HBASE-20130 Use defaults (16020 & 16030) as base ports when the RS is bound to localhost
• relates to: HBASE-18596 [TEST] A hbase1 cluster should be able to replicate to a hbase2 cluster; verify
• relates to: HBASE-19145 Look into hbase-2 client going to hbase-1 server
• relates to: HBASE-17919 HBase 2.x over hadoop 3.x umbrella
• links to: Migration to HBase2

Sub-Tasks

• Migration from 0.94 to 2.0.0: Resolved
• [Rolling Upgrade] 2.0 hfiles cannot be opened by 1.x servers: Resolved
• User customized RegionScanner from 1.X is incompatible with 2.0.0's off-heap part: Resolved
• [DOC] Migration to 2.0 for coprocessors: Resolved
• Currently the tail of hfiles with CellComparator* classname makes it so hbase1 can't open hbase2 written hfiles; fix: Resolved
• [rolling upgrade] Migrate region state from zk to hbase:meta: Resolved
• ClassNotFoundException: org.apache.hadoop.hbase.KeyValue$RawBytesComparator starting 2.0.0 over a 0.98.25 data.: Resolved
• [DOC] include call out of additional changed config defaults in 2.0 upgrade: Resolved
• [DOC] clarify impact to hfile command from HBASE-17197: Resolved
• [shell] Revert shell REPL change and document: Resolved
• [DOC] include ref guide updates for HBase 2.0 HBCK: Resolved
• [DOC] upgrade section needs to call out DLR: Resolved
• [DOC] document change to shell tests: Resolved
• [DOC] upgrade section should warn about logging changes: Resolved
• [DOC] call out change to tracing in upgrade guide: Resolved
• [DOC] upgrade guide should call out removal of prefix-tree data block encoding: Resolved
• [DOC] quickstart guide needs to include note about durability checks for standalone mode: Resolved