accumulo-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
Subject svn commit: r1731723 - /accumulo/site/trunk/content/release_notes/1.7.1.mdtext
Date Mon, 22 Feb 2016 19:24:56 GMT
Author: ctubbsii
Date: Mon Feb 22 19:24:56 2016
New Revision: 1731723

Update draft of Accumulo 1.7.1 release notes


Modified: accumulo/site/trunk/content/release_notes/1.7.1.mdtext
--- accumulo/site/trunk/content/release_notes/1.7.1.mdtext (original)
+++ accumulo/site/trunk/content/release_notes/1.7.1.mdtext Mon Feb 22 19:24:56 2016
@@ -28,14 +28,23 @@ as possible to benefit from the improvem
 of underlying functionality. Users of 1.6 or earlier that are seeking to
 upgrade to 1.7 should consider 1.7.1 as a starting point.
-## Outstanding Known Issues
+## Highlights
-Be aware that a small documentation bug exists with the compact command in the
-shell ([ACCUMULO-4138][ACCUMULO-4138]). The documentation for the begin row and
-end row should be described as exclusive and inclusive, respectively, rather
-than the incorrect description of both being inclusive.
+### Silent data-loss via bulk imported files
-## Highlights
+A user recently reported that a simple bulk-import application would
+occasionally lose some records. Through investigation, it was found that when
+bulk imports into a table failed the initial assignment, the logic that
+automatically retries the imports was incorrectly choosing the tablets to
+import the files into. [ACCUMULO-3967][ACCUMULO-3967] contains more information
+on the cause and identification of the bug. The data-loss condition would only
+affect entire files. If records from a file exist in Accumulo, it is still
+guaranteed that all records within that imported file were successful.
+As such, users who have bulk import applications using previous versions of
+Accumulo should verify that all of their data was correctly ingested into
+Accumulo and immediately update to Accumulo 1.7.1 (This is the same bug that
+was fixed in 1.6.4, so you won't be affected if you're running 1.6.4 or newer).
 ### Queued Compactions Not Running
@@ -43,6 +52,19 @@ Found and fixed a bug ([ACCUMULO-4016][A
 compactions would never run if the number of files changed while the tablet was
+### Kerberos Ticket Renewals
+A bug was fixed which caused Accumulo clients and services to fail to check and
+(if necessary) renew their Kerberos credentials. This would eventually lead to
+these components failing to properly authenticate until they were restarted.
+### Updated commons-collection
+The bundled commons-collection library was updated from version 3.2.1 to 3.2.2
+because of a reported vulnerability in that library.
 ### Faster Processing of Conditional Mutations
 Improved ConditionalMutation processing time by a factor of 3.
@@ -54,6 +76,20 @@ Found and worked around an issue where l
 files would significantly impair the Accumulo GC service, and possibly prevent
 it from running to completion entirely. ([ACCUMULO-4021][ACCUMULO-4021])
+### Unnoticed Per-table Configuration Updates
+Fixed a bug which caused tablet servers to not notice changes to the per-table
+constraints, under some circumstances. ([ACCUMULO-3859][ACCUMULO-3859])
+### TabletServers kill themselves on CentOS7
+Reduced the aggressiveness with which Accumulo Tablet Servers preemptively
+killed themselves when a local filesystem switched to read-only (indicating a
+possible failure). To reduce false positives, such as those which can occur
+with systemd's extra cgroup mounts in CentOS7, an additional check was added to
+ensure that tablet servers would only kill themselves if an ext- or
+xfs-formatted disk switched to read-only. ([ACCUMULO-4080][ACCUMULO-4080])
 ### Improvements in Locating Client Configuration File
 Fixed some unexpected error messages related to setting
@@ -120,4 +156,21 @@ HDFS High-Availability instances, forcin

View raw message