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https://issues.apache.org/jira/browse/HBASE-22283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16825297#comment-16825297
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Hudson commented on HBASE-22283:
--------------------------------

Results for branch branch-1
        [build #789 on 
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/789/]: 
(x) *{color:red}-1 overall{color}*
----
details (if available):

(x) {color:red}-1 general checks{color}
-- For more information [see general 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/789//General_Nightly_Build_Report/]


(x) {color:red}-1 jdk7 checks{color}
-- For more information [see jdk7 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/789//JDK7_Nightly_Build_Report/]


(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2) 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/789//JDK8_Nightly_Build_Report_(Hadoop2)/]




(/) {color:green}+1 source release artifact{color}
-- See build output for details.


> Print row and table information when failed to get region location
> ------------------------------------------------------------------
>
>                 Key: HBASE-22283
>                 URL: https://issues.apache.org/jira/browse/HBASE-22283
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client, logging
>    Affects Versions: 1.4.9, 2.0.5, 2.1.4
>            Reporter: Yu Li
>            Assignee: Yu Li
>            Priority: Major
>             Fix For: 3.0.0, 2.2.1, 1.5.1
>
>
> Currently when failed to get region location, especially when the 
> {{RegionLocations}} returned is null in 
> {{RpcRetryingCallerWithReadReplicas.getRegionLocations}} (we may see more 
> useful message if there's an exception thrown), we only log the replica id 
> w/o any detailed information about row and table, which makes the debugging 
> difficult. Below is an example error message:
> {noformat}
> Caused by: org.apache.hadoop.hbase.client.RetriesExhaustedException: Can't 
> get the location for replica 0
>   at 
> org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:372)
>   at 
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:153)
>   at 
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:58)
>   at 
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:219)
>   at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:277)
>   at 
> org.apache.hadoop.hbase.client.ClientScanner.loadCache(ClientScanner.java:438)
>   at org.apache.hadoop.hbase.client.ClientScanner.next(ClientScanner.java:312)
>   at 
> org.apache.hadoop.hbase.MetaTableAccessor.fullScan(MetaTableAccessor.java:639)
>   at 
> org.apache.hadoop.hbase.MetaTableAccessor.tableExists(MetaTableAccessor.java:366)
>   at 
> org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:409)
> {noformat}
> And here we propose to improve this part.



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