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The following commit(s) were added to refs/heads/master by this push:
new 5811ff2 Formatting
5811ff2 is described below
commit 5811ff2384e12aa69596da1ecdedc5c63f0fa582
Author: Michael Stack <[email protected]>
AuthorDate: Tue Oct 23 10:20:55 2018 -0700
Formatting
---
hbase-hbck2/README.md | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/hbase-hbck2/README.md b/hbase-hbck2/README.md
index 249afcf..b579d69 100644
--- a/hbase-hbck2/README.md
+++ b/hbase-hbck2/README.md
@@ -138,7 +138,8 @@ and is not letting go.
_STUCK_ Procedures look like this:
-```2018-09-12 15:29:06,558 WARN
org.apache.hadoop.hbase.master.assignment.AssignmentManager: STUCK
Region-In-Transition rit=OPENING,
location=va1001.example.org,22101,1536173230599,
table=IntegrationTestBigLinkedList_20180626110336,
region=dbdb56242f17610c46ea044f7a42895b```
+```2018-09-12 15:29:06,558 WARN
org.apache.hadoop.hbase.master.assignment.AssignmentManager: STUCK
Region-In-Transition rit=OPENING,
location=va1001.example.org,22101,1536173230599,
table=IntegrationTestBigLinkedList_20180626110336,
region=dbdb56242f17610c46ea044f7a42895b
+```
#### /master-status#tables
@@ -170,7 +171,8 @@ is needed to alieve the blockage.
Lists of locks and procedures can also be obtained via the hbase shell:
```$ echo "list_locks"| hbase shell &> /tmp/locks.txt
-$ echo "list_procedures"| hbase shell &> /tmp/procedures.txt```
+$ echo "list_procedures"| hbase shell &> /tmp/procedures.txt
+```
#### The [HBase Canary Tool](http://hbase.apache.org/book.html#_canary)
@@ -179,7 +181,8 @@ It can be run with a table focus or against the whole
cluster.
For example, to check cluster assigns:
-```$ hbase canary -f false -t 6000000 &>/tmp/canary.log```
+```$ hbase canary -f false -t 6000000 &>/tmp/canary.log
+```
The _-f false_ tells the Canary to keep going across failed Region
fetches and the _-t 6000000_ tells the Canary run for ~two hours
@@ -191,7 +194,8 @@ For example, given a Region that has a start row of
_d1dddd0c_
belonging to the table _testtable_, do as follows:
-```hbase> scan 'testtable', {STARTROW => 'd1dddd0c', LIMIT => 10}```
+```hbase> scan 'testtable', {STARTROW => 'd1dddd0c', LIMIT => 10}
+```
For an overview on parsing a Region name into its constituent parts, see
[RegionInfo
API](https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/RegionInfo.html).
@@ -203,7 +207,8 @@ _ENABLED_ or _ENABLING_ table, read the _hbase:meta_ table
_info:state_ column.
For example, to find the state of all Regions in the table
_IntegrationTestBigLinkedList_20180626064758_, do the following:
-```$ echo " scan 'hbase:meta', {ROWPREFIXFILTER =>
'IntegrationTestBigLinkedList_20180626064758,', COLUMN => 'info:state'}"| hbase
shell > /tmp/t.txt```
+```$ echo " scan 'hbase:meta', {ROWPREFIXFILTER =>
'IntegrationTestBigLinkedList_20180626064758,', COLUMN => 'info:state'}"| hbase
shell > /tmp/t.txt
+```
...then grep for _OPENING_ or _CLOSING_ Regions.
@@ -268,12 +273,14 @@ current list of outstanding Locks.
This should never happen. If it does, here is what it looks like:
-```2018-10-01 22:07:42,792 WARN org.apache.hadoop.hbase.master.HMaster:
hbase:meta,,1.1588230740 is NOT online; state={1588230740 state=CLOSING,
ts=1538456302300, server=ve1017.example.org,22101,1538449648131};
ServerCrashProcedures=true. Master startup cannot progress, in holding-pattern
until region onlined.```
+```2018-10-01 22:07:42,792 WARN org.apache.hadoop.hbase.master.HMaster:
hbase:meta,,1.1588230740 is NOT online; state={1588230740 state=CLOSING,
ts=1538456302300, server=ve1017.example.org,22101,1538449648131};
ServerCrashProcedures=true. Master startup cannot progress, in holding-pattern
until region onlined.
+```
The Master is unable to continue startup because there is no Procedure to
assign
_hbase:meta_ (or _hbase:namespace_). To inject one, use the _HBCK2_ tool:
-``` HBASE_CLASSPATH_PREFIX=./hbase-hbck2-1.0.0-SNAPSHOT.jar hbase
org.apache.hbase.HBCK2 assigns 1588230740```
+``` HBASE_CLASSPATH_PREFIX=./hbase-hbck2-1.0.0-SNAPSHOT.jar hbase
org.apache.hbase.HBCK2 assigns 1588230740
+```
...where 1588230740 is the encoded name of the _hbase:meta_ Region.
