svn commit: r1688745 - /accumulo/site/trunk/content/release_notes/1.6.3.mdtext

[el...@apache.org]

Author: elserj
Date: Wed Jul  1 22:12:11 2015
New Revision: 1688745

URL: http://svn.apache.org/r1688745
Log:
Make complete sentences, remove two-spaces starting sentences.

Modified:
    accumulo/site/trunk/content/release_notes/1.6.3.mdtext

Modified: accumulo/site/trunk/content/release_notes/1.6.3.mdtext
URL: http://svn.apache.org/viewvc/accumulo/site/trunk/content/release_notes/1.6.3.mdtext?rev=1688745&r1=1688744&r2=1688745&view=diff
==============================================================================
--- accumulo/site/trunk/content/release_notes/1.6.3.mdtext (original)
+++ accumulo/site/trunk/content/release_notes/1.6.3.mdtext Wed Jul  1 22:12:11 2015
@@ -31,47 +31,50 @@ improvements since Accumulo 1.5, see the
 
 ## Fixed BatchWriter hold time error
 
-In previous releases a `BatchWriter` could fail with a
-`MutationsRejectedException` with server errors.  If inspection of the tserver
+In previous releases, a `BatchWriter` could fail with a
+`MutationsRejectedException` with server errors. If inspection of the tserver
 logs showed `HoldTimeoutException` was the cause, the workaround was to
-increase the value of `general.rpc.timeout`.  Changing this setting is no
+increase the value of `general.rpc.timeout`. Changing this setting is no
 longer necessary as this bug was fixed by [ACCUMULO-2388][ACCUMULO-2388].
 
 ## Severe bug fixes.
 
- * [ACCUMULO-3597][ACCUMULO-3597] Fixed deadlock where a table flush and
+ * [ACCUMULO-3597][ACCUMULO-3597] Fixed a deadlock where a table flush and
    metadata tablet load were waiting on each other.  This was a rare bug. If it
    occurred it could impact the availability of Accumulo as most Accumulo
    operations depend on metadata tablets.
- * [ACCUMULO-3709][ACCUMULO-3709] Fixed potential data loss bug where
+ * [ACCUMULO-3709][ACCUMULO-3709] Fixed a potential data loss bug where
    AccumuloOutputFormat close did not rethrow exception.
- * [ACCUMULO-3745][ACCUMULO-3745] Fixed deadlock in SourceSwitchingIterator
-  that occured when using custom iterators that called deep copy.  This bug
-  would cause scans to hang indefinitely until the tserver was killed.
- * [ACCUMULO-3859][ACCUMULO-3859] Fixed race condition that could prevent table
+ * [ACCUMULO-3745][ACCUMULO-3745] Fixed a deadlock in SourceSwitchingIterator
+   that occurred when using custom iterators that called `deepCopy`.  This bug
+   would cause scans to hang indefinitely until the offending tserver was killed.
+ * [ACCUMULO-3859][ACCUMULO-3859] Fixed a race condition that could prevent table
    constraints from ever loading for a Tablet. It is likely to only affect users
    when the constraint is first added to a table.
 
 ## Notable bug fixes
 
- * [ACCUMULO-3589][ACCUMULO-3589] du in shell does not check table existence
- * [ACCUMULO-3692][ACCUMULO-3692] Offline table disables balancing
- * [ACCUMULO-3718][ACCUMULO-3718] Fixed bug that prevented a Mutation from
+ * [ACCUMULO-3589][ACCUMULO-3589] `du` in Shell does not check table existence.
+ * [ACCUMULO-3692][ACCUMULO-3692] Offline'ing a table disabled subsequent balancing.
+ * [ACCUMULO-3718][ACCUMULO-3718] Fixed a bug that prevented a Mutation from
    being created in Scala.
- * [ACCUMULO-3750][ACCUMULO-3750] Fixed issue where master would perpetually
-   fail when there was a bad instance.secret setting.
- * [ACCUMULO-3784][ACCUMULO-3784] Fixed bug in getauths shell command where it
+ * [ACCUMULO-3750][ACCUMULO-3750] Fixed an issue where the Master would perpetually
+   fail when there was a bad `instance.secret` setting.
+ * [ACCUMULO-3784][ACCUMULO-3784] Fixed a bug in `getauths` Shell command where it
    treated visibilities that differed only in case as the same.
  * [ACCUMULO-3796][ACCUMULO-3796] Added documentation about turning off zone
-   reclaim.  
- * [ACCUMULO-3880][ACCUMULO-3880] Malformed Configuration Causes tservers To Shutdown
- * [ACCUMULO-3890][ACCUMULO-3890] Fixed performance issue with
-   CredentialProvider.  This could degrade performance when ...
+   reclaim.
+ * [ACCUMULO-3880][ACCUMULO-3880] Fixed an issue where malformed configuration caused
+   TabletServers to shutdown.
+ * [ACCUMULO-3890][ACCUMULO-3890] Fixed a performance issue with CredentialProvider. Information
+   stored in the CredentialProvider was not cached which resulted in repeatedly reading the
+   file from HDFS which can degrade HDFS performance.
 
 ## Known Issues
 
-During testing [HDFS-8406][1] was encountered.  To work around this issue do
-the following :
+During testing [HDFS-8406][1] was encountered which is summarized by write-ahead log recovery
+that was never completed due to an inability to recover the HDFS lease on the WAL. To work around
+this issue, the following steps can be done:
 
  1. Locate block for walog whose lease can not be recovered.
  2. Copy block into HDFS as temp file TMP_WALOG