Hi, Guys,
When I use the client.Scan class to get a set of rows back from
RegionServer, i found one interesting code, the script i used is like:
Scan scan = new Scan(Bytes.toBytes("a"), Bytes.toBytes("f"));
> scan.addColumn(famA, col1);
> scan.setCaching(1);
> scan
Hi, guys,
i have a question about HLog, from the design doc, we can see the HLog is
for one Region. However, from code, i saw the HLog is for the whole Region
Server. Any reason of having this? Does it have some issues of Write Lock
and latency of rebuilding the StoreFile. See, if we can use one H
ompactionRequested() only puts the region on a queue to
> > be compacted, so if there is unintended duplication, it wont actually
> > hold anything up.
> >
> > -ryan
> >
> > On Tue, Jan 25, 2011 at 6:05 PM, mac fang wrote:
> >> Guys, since the flushCa
Guys, since the flushCache will make the write/read suspend. I am NOT sure
if it is necessary here.
On Mon, Jan 24, 2011 at 1:48 PM, mac fang wrote:
> Yes, I mean the server.compactSplitThread.compactionRequested(region,
> getName());
>
> in flushRegion, it
ed(region,
getName());*
> > }
On Mon, Jan 24, 2011 at 6:40 AM, Ted Yu wrote:
> I think he was referring to this line:
>
> server.compactSplitThread.compactionRequested(region, getName());
>
> On Sun, Jan 23, 2011 at 10:52 AM, Stack wrote:
>
> > Hello Mac Fa
Hi, guys,
see the below codes in* MemStoreFlusher.java*, i am not sure if those lines
in orange are the same and looks like they are trying to do the same logic.
Are they redundant?
regards
macf
if (!flushRegion(biggestMemStoreRegion, true)) {
LOG.warn("Flush failed");
break
; > Sent: Thursday, January 20, 2011 8:25 AM
> > To: dev@hbase.apache.org
> > Subject: Re: Question about HBase Delete
> >
> > The actual deletion happens after compaction.
> >
> > FYI
> >
> > On Thu, Jan 20, 2011 at 8:01 AM, mac fang wrote:
> >
Hi, guys,
I read the HBase code and found the delete interface only delete the
keyValue in the MemoryStore, but NOT really remove the keyValue in the
SequenceFile, only invoke the
this.writer.append(logKey, logEdit);
will it remove the index in the SequenceFile. And I saw the BigTable design
an
putting .META. content up in
> zookeeper).
>
> St.Ack
>
> On Sun, Jan 16, 2011 at 6:36 AM, mac fang wrote:
> > Hi, guys,
> >
> > one question want to get the awnser: i read the HBase Client code, seems
> the
> > logic to get a table:
> >
> > 1. Get
Hi, guys,
one question want to get the awnser: i read the HBase Client code, seems the
logic to get a table:
1. Get -ROOT- RegionLoc from Zk,
2. Get .META. RegionLoc from -ROOT- Table.
3. Get Table RegionLoc from .META. Table.
So seems the -ROOT- is NOT necessary, we can put the .META. location
Hi, guys,
I am trying to make the HBase 0.20.6 running on Hadoop 0.21, besides the
issues which are caused by the Version differs, I also found one issue:
There is NO "info" folder in the -ROOT- directory on Hadoop.
/hbase_changes_026_021_mac_1/-ROOT-/70236052
I checked the code, and found there
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