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From "Sean Busbey" <>
Subject Re: Review Request 19804: ACCUMULO-2519 Aborts upgrade if there are Fate transactions from an old version.
Date Wed, 02 Apr 2014 15:10:02 GMT

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(Updated April 2, 2014, 3:10 p.m.)

Review request for accumulo and kturner.


updated sanity checks and docs per Bill H's feedback.

Bugs: ACCUMULO-2519

Repository: accumulo


Adds "make sure Fate has no outstanding items" to the upgrade instructions. Makes sure the
master and tabletservers don't take upgrade steps if they see fate ops waiting.

Diffs (updated)

  README 115a9b7 
  server/src/main/java/org/apache/accumulo/server/ 99ec7e4 
  server/src/main/java/org/apache/accumulo/server/master/ 8c4c864 
  server/src/main/java/org/apache/accumulo/server/tabletserver/ d76946d 
  server/src/main/java/org/apache/accumulo/server/util/ 7328a55 



Took a 1.4.5-SNAP cluster

* loaded test data in a variety of table configs
* alternate table creation and deletion
* load additional table to cause !METADATA churn
* shutdown cluster uncleanly
* verified waiting Fate transactions (table deletion at success status)
* verified waiting local WALs
* verified waiting local WALs include !METADATA table (via LogReader)
* verified /accumulo/version showed 4
* Start upgrade to 1.5.2-SNAP
* verified errors showing no upgrade and to go back to docs in: monitor, master logs, tabletserver
* verified same waiting Fate transactions
* verified same waiting local WALs
* verified /accumulo/version showed 4
* Cleared Fate operations
* Start upgrade to 1.5.2-SNAP
* wait a terrifying long amount of time, check on progress via local logs
* verify no errors shown for upgrade
* verified WALs copied to HDFS
* verified /accumulo/version showed 5
* verified monitor showed normal start up
* wait for all tablets to be hosted
* verify test data


Sean Busbey

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