Masatake,
Where you able to use the graphDrawer.py script against the HTrace
output. Attached is the output got from my test and didn't generate any
image. Any thoughts why? Thanks in advance.
- Biju
On Wed, Mar 5, 2014 at 4:57 PM, Masatake Iwasaki <
iwasak...@oss.nttdata.co.jp> wrote:
> Hi Biju,
>
>
> > The org.apache.hadoop.hbase.trace.SpanReceiverHost is available only in
> the
> > server jar. If we intend to keep the client and server components in
> > separate jars this call need to be included in the client jar as well.
>
> Thanks for your feedback!
> I will take this into consideration on fixing docs.
>
> Regards,
> Masatake Iwasaki
>
>
> (3/5/14, 11:51), Biju G.S Nair wrote:
>
>> Thanks Masatake.
>>
>> The org.apache.hadoop.hbase.trace.SpanReceiverHost is available only in
>> the
>> server jar. If we intend to keep the client and server components in
>> separate jars this call need to be included in the client jar as well.
>>
>>
>>
>>
>>
>> Thanks,
>> Biju
>> Tel#: 978-707-5066
>>
>>
>> On Wed, Mar 5, 2014 at 1:29 PM, Masatake Iwasaki <
>> iwasak...@oss.nttdata.co.jp> wrote:
>>
>> Hi Biju,
>>>
>>>
>>> Trying to understand the process to enable HTrace. Following is the
>>>>
>>> change
>>>
>>>> to hbase-site.xml
>>>> <property>
>>>> <name>hbase.trace.spanreceiver.localfilespanreceiver.
>>>>
>>> filename</name>
>>>
>>>> <value>/var/log/hbase/htrace.out</value>
>>>> </property>
>>>>
>>>
>>> Please try configuration like below.::
>>>
>>> <property>
>>> <name>hbase.trace.spanreceiver.classes</name>
>>> <value>org.cloudera.htrace.impl.LocalFileSpanReceiver</value>
>>> </property>
>>>
>>> <property>
>>> <name>hbase.local-file-span-receiver.path</name>
>>> <value>/var/log/hbase/htrace.out</value>
>>> </property>
>>>
>>> and add lines for receivers initialization to your client code before
>>> starting trace.::
>>>
>>> import org.apache.hadoop.hbase.trace.SpanReceiverHost;
>>> ...
>>> private SpanReceiverHost spanReceiverHost;
>>> ...
>>> spanReceiverHost = SpanReceiverHost.getInstance(conf);
>>>
>>> I will file a JIRA to fix documentation later.
>>>
>>>
>>> Regards,
>>> Masatake Iwasaki
>>>
>>>
>>>
>>>
>>>
>>> (3/5/14, 9:08), Biju G.S Nair wrote:
>>>
>>> Trying to understand the process to enable HTrace. Following is the
>>>> change
>>>> to hbase-site.xml
>>>> <property>
>>>> <name>hbase.trace.spanreceiver.localfilespanreceiver.
>>>> filename</name>
>>>> <value>/var/log/hbase/htrace.out</value>
>>>> </property>
>>>>
>>>> Following is a simple code to trace a get call
>>>>
>>>> public static void main(String[] args) throws IOException {
>>>>
>>>> Configuration conf = HBaseConfiguration.create();
>>>>
>>>> TraceScope getSpan = Trace.startSpan("Gets",
>>>> Sampler.ALWAYS);
>>>>
>>>> try{
>>>>
>>>> System.out.println("Is tracing on :"+Trace.isTracing());
>>>>
>>>> HTable table = new HTable(conf, "t1");
>>>>
>>>> Get get = new Get(Bytes.toBytes("r1"));
>>>>
>>>> Result res = table.get(get);
>>>>
>>>> System.out.println(res.toString());
>>>>
>>>> table.close();
>>>>
>>>> } catch(Exception e) {
>>>>
>>>> getSpan.close();
>>>>
>>>> } finally {
>>>>
>>>> getSpan.close();
>>>>
>>>> }
>>>>
>>>> }
>>>> Is something missed
>>>> ?
>>>> No trace file is getting
>>>> generated
>>>> . Thanks in advance.
>>>>
>>>> Thanks,
>>>> Biju
>>>>
>>>>
>>>>
>>>
>>
>
