Hi,
I am trying to setup tracing following the steps specified on the Phoenix
webpage,
http://phoenix.apache.org/tracing.html
Below are the steps I have followed,
1. On the client, property files (hadoop-metrics2-phoenix.properties and
hadoop-metrics2-hbase.properties) came configured with the distribution
and are on the classpath.
2. On the server nodes (master + slaves), appended following to the
/usr/lib/hbase/conf/hadoop-metrics2-hbase.properties file,
# ensure that we receive traces on the server
hbase.sink.tracing.class=org.apache.phoenix.trace.PhoenixMetricsSink
# Tell the sink where to write the metrics
hbase.sink.tracing.writer-class=org.apache.phoenix.trace.PhoenixTableMetricsWriter
# Only handle traces with a context of "tracing"
hbase.sink.tracing.context=tracing
3. Added the following property to the client's hbase-site.xml
<configuration>
<property>
<name>phoenix.trace.frequency</name>
<value>always</value>
</property>
</configuration>
4. Created the SYSTEM.TRACING_STATS table using,
CREATE TABLE *SYSTEM.TRACING_STATS* (
*trace_id* BIGINT NOT NULL,
*parent_id* BIGINT NOT NULL,
*span_id* BIGINT NOT NULL,
*description* VARCHAR,
*start_time* BIGINT,
*end_time* BIGINT,
*hostname* VARCHAR,
*tags.count* SMALLINT,
*annotations.count* SMALLINT,
CONSTRAINT pk PRIMARY KEY (*trace_id, parent_id, span_id*)
5. Restarted cluster
However, after running queries from the client, SYSTEM.TRACING_STATS
table returns 0 rows.
I am using cloudera distribution 5.3.2 with
Hadoop Ver: 2.5.0
HBase Ver: 0.98.6
Phoenix Ver: 4.3.0
Thanks,
~Ashish
