* sometimes API calls return with null/empty response bodies. thus,
wrap all API calls in a retry loop.
* calls that submit work in the form of "commands" now retrieve the
commandId from successful command submission, and track completion
of that command before returning control to calling context.
* model CM's process state and use that model to guide state
transitions more intelligently. this guards against, for example,
the start command failing with an error message like "Role must be
stopped".
* improvements to logging levels, avoid spamming logs with the
side-effects of retries at this and higher contexts.
* include references to API documentation, such as it is.
Signed-off-by: stack <stack@apache.org>
`RollingBatchRestartRsAction` doesn't handle failure cases when
tracking its list of dead servers. The original author believed that a
failure to restart would result in a retry. However, by removing the
dead server from the failed list, that state is lost, and retry never
occurs. Because this action doesn't ever look back to the current
state of the cluster, relying only on its local state for the current
action invocation, it never realizes the abandoned server is still
dead. Instead, be more careful to only remove the dead server from the
list when the `startRs` invocation claims to have been successful.
Signed-off-by: stack <stack@apache.org>
Simplify the new user experience shipping a configuration that enables
a fresh checkout or tarball distribution to run in standalone mode
without direct user configuration. This change restores the behavior
we had when running on Hadoop 2.8 and earlier.
Patch for master includes an update to the book. This change will be
omitted when backporting to earlier branches.
Signed-off-by: stack <stack@apache.org>
Signed-off-by: Josh Elser <elserj@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/GCMultipleMergedRegionsProcedure.java
Edit a log.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/HBCKServerCrashProcedure.java
Add override of isMatchingRegionLocation. Allow 'null' as a pass in
HBCKSCP.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ServerCrashProcedure.java
Add a method for HBCKSCP to override and be less strict filtering
assigns.
hbase-server/src/main/resources/hbase-webapps/master/hbck.jsp
Some doc on what 'Unknown Servers' are.
Signed-off-by: Andrew Purtell <apurtell@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Lars Hofhansl <larsh@apache.org>
Signed-off-by: Anoop Sam John <anoopsamjohn@gmail.com>
Signed-off-by: Viraj Jasani <vjasani@apache.org>
It addresses couple issues:
1. Make sure deleteMergeQualifiers() does not delete the row if there is no columns with "merge" keyword.
2. GCMulitpleMergedRegionsProcedure now acquire an exclusive lock on the child region.
Signed-off-by: stack <stack@apache.org>
Move the random free port generate back into hbasecommontestingutility
from hbasetestingutility.
Add a create simple kdc server utility that will start a kdc server and
if a bindexception, create a new one on a new random port in hbase-common.
Add new BoundSocketMaker helpful when trying to manufacture
BindExceptions because of port clash.
Change thrift and http kdc tests to use this new utility (removes
code duplication around kdc server setup).
Nick Dimiduk
niuyulin
Mingliang Liu
ramkrish86
binlijin
Baiqiang Zhao
XinSun
Guanghao Zhang
Andrew Purtell
Sandeep Pal
stack
shahrs87
Viraj Jasani
bsglz
Duo Zhang
Michael Stack
Sambit Mohapatra
huaxiangsun
Gkkkk302
Geoffrey Jacoby
Reid Chan
Mohammad Arshad