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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-3645) Iterators not run at compaction when tablets are empty
Date Thu, 12 Mar 2015 04:41:38 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-3645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14358087#comment-14358087
] 

ASF GitHub Bot commented on ACCUMULO-3645:
------------------------------------------

GitHub user denine99 opened a pull request:

    https://github.com/apache/accumulo/pull/22

    ACCUMULO-3645 Run iterators at major compaction on empty tablets

    Putting this out for review to see if I am on the right track; I don't expect it to be
perfect on the first shot.  I'd like to redo this for 1.6.3 if it looks good.  Open to suggestions
on design and on testing compacting empty tablets.
    
    Removed/modified lines in Tablet that stop construction of the SKVI stack when a tablet
has no data.
    Includes an iterator that generates data, for testing purposes. Includes one integration
test. Not sure about MiniAccumulo.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/denine99/accumulo ACCUMULO-3645

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/accumulo/pull/22.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #22
    
----
commit d459b91dbcf02f4057e2a5625a60fb70920ca202
Author: Dylan Hutchison <dhutchis@mit.edu>
Date:   2015-03-12T04:02:08Z

    ACCUMULO-3645 Run iterators not run at major compaction when tablets are empty
    
    Removed/modified lines in Tablet that stop construction of the SKVI stack when a tablet
has no data.
    Includes an iterator that generates data, for testing purposes. Includes one integration
test.

----


> Iterators not run at compaction when tablets are empty
> ------------------------------------------------------
>
>                 Key: ACCUMULO-3645
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3645
>             Project: Accumulo
>          Issue Type: Bug
>          Components: client, mini, tserver
>    Affects Versions: 1.6.1
>         Environment: Ubuntu 14.04, Accumulo 1.6.1, Hadoop 2.6.0, Zookeeper 3.4.6
>            Reporter: Dylan Hutchison
>
> When an iterator is configured to run during a one-time manual major compaction on a
tablet that is empty, the iterator never runs. It seems as if Accumulo never constructs the
SKVI stack at all, because it tries to optimize by eliminating "unnecessary" tablet compactions.
Also true of MiniAccumulo.
> This is bad for "generator" iterators that emit keys (in sorted order) not present in
the tablet's data. They never have a chance to run.
> A workaround is for the client to insert "dummy data" into the tablets he wants to compact,
before starting a compaction with "generator" iterators.  Note that *any* data is sufficient,
even delete keys, to ensure the SKVI stack is built and run through.
> Test file: [InjectTest|https://github.com/Accla/d4m_api_java/blob/master/src/test/java/edu/mit/ll/graphulo/InjectTest.java]
> * method {{testInjectOnCompact_Empty}} fails because no data is in the tablets
> * method {{testInjectOnCompact}} passes because data is written into the tablets before
initiating compaction. 
> Two logs follow.  Both have a [DebugIterator|https://accumulo.apache.org/1.6/apidocs/org/apache/accumulo/core/iterators/DebugIterator.html]
set after an [InjectIterator|https://github.com/Accla/d4m_api_java/blob/master/src/main/java/edu/mit/ll/graphulo/InjectIterator.java],
an SKVI which "generates" hard-coded entries.  The root user scans the table after flush and
compact.
> Logs when no data in the tablets:
> {code}
> 2015-03-05 06:58:04,914 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:04,974 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.01 secs, nbTimes = [4 4 4.00 1] 
> 2015-03-05 06:58:04,992 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 15
entries in 0.01 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:05,018 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 2
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:05,052 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
4 entries in 0.00 secs, nbTimes = [2 2 2.00 1] 
> 2015-03-05 06:58:05,054 [tserver.TabletServer] DEBUG: Got compact message from user:
!SYSTEM
> 2015-03-05 06:58:05,135 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 15
entries in 0.01 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:05,138 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36422 2
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:05,384 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36422 2
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:05,386 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 15
entries in 0.01 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:05,504 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 2
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:05,509 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36422 15
entries in 0.01 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:06,069 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.01 secs, nbTimes = [3 3 3.00 1] 
> 2015-03-05 06:58:06,158 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36456;

> 2015-03-05 06:58:06,158 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36456;

> 2015-03-05 06:58:06,168 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36456 2
entries in 0.01 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:06,174 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36456;

> 2015-03-05 06:58:06,174 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36456;
action: scan; targetTable: test_InjectTest_testInjectOnCompact_Empty; authorizations: ; range:
{5m;f<=[(-inf,f%00; : [] 9223372036854775807 false)]}; columns: []; iterators: []; iteratorOptions:
{};
> 2015-03-05 06:58:06,174 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36478;

> 2015-03-05 06:58:06,174 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36456;

> 2015-03-05 06:58:06,174 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36478;
action: scan; targetTable: test_InjectTest_testInjectOnCompact_Empty; authorizations: ; range:
{5m<;f=[[f%00; : [] 9223372036854775807 false,+inf)]}; columns: []; iterators: []; iteratorOptions:
{};
> 2015-03-05 06:58:06,175 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36478;

> 2015-03-05 06:58:06,176 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36478 0
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:06,176 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36456 0
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> {code}
> Logs when data is in the tablets:
> {code}
> 2015-03-05 06:58:31,673 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:31,674 [tserver.NativeMap] DEBUG: Allocated native map 0x000000000300ac20
> 2015-03-05 06:58:31,674 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 17
entries in 0.01 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:31,676 [tserver.Tablet] DEBUG: MinC initiate lock 0.00 secs
> 2015-03-05 06:58:31,676 [tserver.NativeMap] DEBUG: Allocated native map 0x000000000300acc0
> 2015-03-05 06:58:31,676 [tserver.Tablet] DEBUG: MinC initiate lock 0.00 secs
> 2015-03-05 06:58:31,684 [tserver.MinorCompactor] DEBUG: Begin minor compaction hdfs://localhost:9000/accumulo/tables/5n/t-00001h5/F00001h6.rf_tmp
5n;f<
> 2015-03-05 06:58:31,691 [tserver.MinorCompactor] DEBUG: Begin minor compaction hdfs://localhost:9000/accumulo/tables/5n/default_tablet/F00001h7.rf_tmp
5n<;f
> 2015-03-05 06:58:31,725 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:31,726 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:31,766 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 2
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:31,779 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:31,780 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:31,833 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:31,834 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:31,886 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:31,887 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:31,939 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:31,940 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:31,992 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:31,993 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:32,046 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [0 0 0.00 1] 
> 2015-03-05 06:58:32,047 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:32,099 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:32,100 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:32,147 [tserver.Compactor] DEBUG: Compaction 5n;f< 1 read | 1 written
| 2,147,483,647 entries/sec |  0.000 secs
> 2015-03-05 06:58:32,148 [tserver.Compactor] DEBUG: Compaction 5n<;f 2 read | 2 written
| 2,147,483,647 entries/sec |  0.000 secs
> 2015-03-05 06:58:32,153 [tserver.Tablet] DEBUG: Logs for memory compacted: 5n;f< localhost:9997/hdfs://localhost:9000/accumulo/wal/localhost+9997/706df902-2745-4c08-86bf-dfd4e9b8c729
> 2015-03-05 06:58:32,153 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [2 2 2.00 1] 
> 2015-03-05 06:58:32,153 [tserver.Tablet] DEBUG: Logs to be destroyed: 5n;f< localhost:9997/hdfs://localhost:9000/accumulo/wal/localhost+9997/706df902-2745-4c08-86bf-dfd4e9b8c729
> 2015-03-05 06:58:32,155 [tserver.Tablet] DEBUG: Logs for memory compacted: 5n<;f localhost:9997/hdfs://localhost:9000/accumulo/wal/localhost+9997/706df902-2745-4c08-86bf-dfd4e9b8c729
> 2015-03-05 06:58:32,155 [tserver.Tablet] DEBUG: Logs to be destroyed: 5n<;f localhost:9997/hdfs://localhost:9000/accumulo/wal/localhost+9997/706df902-2745-4c08-86bf-dfd4e9b8c729
> 2015-03-05 06:58:32,155 [tserver.TabletServer] DEBUG: Got flush message from user: !SYSTEM
> 2015-03-05 06:58:32,172 [log.TabletServerLogger] DEBUG:  wrote MinC finish  400: writeTime:10ms

> 2015-03-05 06:58:32,173 [tserver.Tablet] TABLET_HIST: 5n;f< MinC [memory] -> hdfs://localhost:9000/accumulo/tables/5n/t-00001h5/F00001h6.rf
> 2015-03-05 06:58:32,173 [tserver.Tablet] DEBUG: MinC finish lock 0.00 secs 5n;f<
> 2015-03-05 06:58:32,173 [tserver.NativeMap] DEBUG: Deallocating native map 0x00000000037a1720
> 2015-03-05 06:58:32,178 [log.TabletServerLogger] DEBUG:  wrote MinC finish  401: writeTime:11ms

> 2015-03-05 06:58:32,178 [tserver.Tablet] TABLET_HIST: 5n<;f MinC [memory] -> hdfs://localhost:9000/accumulo/tables/5n/default_tablet/F00001h7.rf
> 2015-03-05 06:58:32,178 [tserver.Tablet] DEBUG: MinC finish lock 0.00 secs 5n<;f
> 2015-03-05 06:58:32,178 [tserver.NativeMap] DEBUG: Deallocating native map 0x000000000300aaa0
> 2015-03-05 06:58:32,208 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:32,253 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
4 entries in 0.00 secs, nbTimes = [1 1 1.00 1] 
> 2015-03-05 06:58:32,254 [tserver.TabletServer] DEBUG: Got compact message from user:
!SYSTEM
> 2015-03-05 06:58:32,256 [tserver.Tablet] DEBUG: Major compaction plan: null propogate
deletes : false
> 2015-03-05 06:58:32,256 [tserver.Tablet] DEBUG: MajC initiate lock 0.00 secs, wait 0.00
secs
> 2015-03-05 06:58:32,256 [tserver.Tablet] DEBUG: Major compaction plan: null propogate
deletes : false
> 2015-03-05 06:58:32,256 [tserver.Tablet] DEBUG: MajC initiate lock 0.00 secs, wait 0.00
secs
> 2015-03-05 06:58:32,257 [tserver.Tablet] DEBUG: Starting MajC 5n<;f (USER) [hdfs://localhost:9000/accumulo/tables/5n/default_tablet/F00001h7.rf]
--> hdfs://localhost:9000/accumulo/tables/5n/default_tablet/A00001h8.rf_tmp  [name:InjectIterator,
priority:15, class:edu.mit.ll.graphulo.InjectIterator, properties:{}, name:DebugIterator,
priority:16, class:org.apache.accumulo.core.iterators.DebugIterator, properties:{}]
> 2015-03-05 06:58:32,257 [tserver.Tablet] DEBUG: Starting MajC 5n;f< (USER) [hdfs://localhost:9000/accumulo/tables/5n/t-00001h5/F00001h6.rf]
--> hdfs://localhost:9000/accumulo/tables/5n/t-00001h5/A00001h9.rf_tmp  [name:InjectIterator,
priority:15, class:edu.mit.ll.graphulo.InjectIterator, properties:{}, name:DebugIterator,
priority:16, class:org.apache.accumulo.core.iterators.DebugIterator, properties:{}]
> 2015-03-05 06:58:32,270 [graphulo.BranchIterator] INFO : class edu.mit.ll.graphulo.InjectIterator:
init on scope majc fullScan=true
> 2015-03-05 06:58:32,270 [iterators.DebugIterator] DEBUG: init(edu.mit.ll.graphulo.InjectIterator@20a11899,
{}, org.apache.accumulo.tserver.TabletIteratorEnvironment@3055f58b)
> 2015-03-05 06:58:32,271 [iterators.DebugIterator] DEBUG: 0x5B6B9177 seek([f%00; : []
9223372036854775807 false,+inf), [], false)
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
kTablet2 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
kTablet2 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
kTablet2 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopValue() -->
7
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 next()
> 2015-03-05 06:58:32,272 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
m1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
m1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
m1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopValue() -->
1
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 next()
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
zTablet2 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
zTablet2 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> true
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopKey() -->
zTablet2 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 getTopValue() -->
7
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 next()
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> false
> 2015-03-05 06:58:32,273 [iterators.DebugIterator] DEBUG: 0x5B6B9177 hasTop() --> false
> 2015-03-05 06:58:32,275 [graphulo.BranchIterator] INFO : class edu.mit.ll.graphulo.InjectIterator:
init on scope majc fullScan=true
> 2015-03-05 06:58:32,275 [iterators.DebugIterator] DEBUG: init(edu.mit.ll.graphulo.InjectIterator@6b76817,
{}, org.apache.accumulo.tserver.TabletIteratorEnvironment@7312c172)
> 2015-03-05 06:58:32,275 [iterators.DebugIterator] DEBUG: 0x545A5E63 seek((-inf,f%00;
: [] 9223372036854775807 false), [], false)
> 2015-03-05 06:58:32,276 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,276 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
a1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,276 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
a1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopValue() -->
1
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 next()
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
aTablet1 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
aTablet1 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
aTablet1 :cq [] 1425556711614 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopValue() -->
7
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 next()
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
c1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
c1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
c1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopValue() -->
1
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 next()
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
m1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
m1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> true
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopKey() -->
m1 colF3:colQ3 [] 1425553534769 false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 getTopValue() -->
1
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 next()
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> false
> 2015-03-05 06:58:32,277 [iterators.DebugIterator] DEBUG: 0x545A5E63 hasTop() --> false
> 2015-03-05 06:58:32,307 [tserver.Compactor] DEBUG: Compaction 5n<;f 2 read | 3 written
|    181 entries/sec |  0.011 secs
> 2015-03-05 06:58:32,320 [tserver.TabletServer] INFO : Adding 1 logs for extent !0<;~
as alias 3
> 2015-03-05 06:58:32,340 [tserver.Tablet] DEBUG: MajC finish lock 0.00 secs
> 2015-03-05 06:58:32,340 [tserver.Tablet] TABLET_HIST: 5n<;f MajC [hdfs://localhost:9000/accumulo/tables/5n/default_tablet/F00001h7.rf]
--> hdfs://localhost:9000/accumulo/tables/5n/default_tablet/A00001h8.rf
> 2015-03-05 06:58:32,612 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36422 2
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:32,612 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 17
entries in 0.01 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:32,718 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36525;

> 2015-03-05 06:58:32,722 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36525;

> 2015-03-05 06:58:32,725 [tserver.Compactor] DEBUG: Compaction 5n;f< 1 read | 4 written
|     71 entries/sec |  0.014 secs
> 2015-03-05 06:58:32,736 [tserver.TabletServer] DEBUG: UpSess 127.0.0.1:36525 59 in 0.018s,
at=[0 0 0.00 1] ft=0.013s(pt=0.000s lt=0.013s ct=0.000s)
> 2015-03-05 06:58:32,749 [tserver.Tablet] DEBUG: MajC finish lock 0.00 secs
> 2015-03-05 06:58:32,749 [tserver.Tablet] TABLET_HIST: 5n;f< MajC [hdfs://localhost:9000/accumulo/tables/5n/t-00001h5/F00001h6.rf]
--> hdfs://localhost:9000/accumulo/tables/5n/t-00001h5/A00001h9.rf
> 2015-03-05 06:58:33,269 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:60455 !0
6 entries in 0.00 secs, nbTimes = [4 4 4.00 1] 
> 2015-03-05 06:58:33,361 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36506;

> 2015-03-05 06:58:33,361 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36526;

> 2015-03-05 06:58:33,362 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36506;
action: scan; targetTable: test_InjectTest_testInjectOnCompact; authorizations: ; range: {5n;f<=[(-inf,f%00;
: [] 9223372036854775807 false)]}; columns: []; iterators: []; iteratorOptions: {};
> 2015-03-05 06:58:33,362 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36526;
action: scan; targetTable: test_InjectTest_testInjectOnCompact; authorizations: ; range: {5n<;f=[[f%00;
: [] 9223372036854775807 false,+inf)]}; columns: []; iterators: []; iteratorOptions: {};
> 2015-03-05 06:58:33,362 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36506;

> 2015-03-05 06:58:33,362 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36526;

> 2015-03-05 06:58:33,378 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36526 3
entries in 0.02 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:33,378 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36506 3
entries in 0.02 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:33,459 [tserver.TabletServer] DEBUG: ScanSess tid 127.0.0.1:36530 !0
0 entries in 0.00 secs, nbTimes = [0 0 0.00 1] 
> 2015-03-05 06:58:33,493 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36525;

> 2015-03-05 06:58:33,495 [Audit   ] INFO : operation: permitted; user: root; client: 127.0.0.1:36525;

> 2015-03-05 06:58:33,505 [tserver.TabletServer] DEBUG: UpSess 127.0.0.1:36525 4 in 0.011s,
at=[1 1 1.00 1] ft=0.008s(pt=0.000s lt=0.008s ct=0.000s)
> 2015-03-05 06:58:33,580 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:60455 2
entries in 0.00 secs (lookup_time:0.00 secs tablets:1 ranges:1) 
> 2015-03-05 06:58:33,586 [tserver.TabletServer] DEBUG: MultiScanSess 127.0.0.1:36422 17
entries in 0.01 secs (lookup_time:0.01 secs tablets:1 ranges:1) 
> {code}



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