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https://issues.apache.org/jira/browse/HADOOP-12511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14994658#comment-14994658
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Masatake Iwasaki commented on HADOOP-12511:
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GangliaSink and GraphiteSink needs key for each metric values. Those sinks make
the key from name and tags of metrics record. This sometimes results in
problematic key which contains changing values and white spaces.
{noformat}
[dfs.FSNamesystem.Context=dfs.HAState=active.TotalSyncTimes=20
.Hostname=centos7.MissingBlocks 0 1446359392]
[dfs.FSNamesystem.Context=dfs.HAState=active.TotalSyncTimes=20
.Hostname=centos7.MissingReplOneBlocks 0 1446359392]
[dfs.FSNamesystem.Context=dfs.HAState=active.TotalSyncTimes=20
.Hostname=centos7.ExpiredHeartbeats 0 1446359392]
[dfs.FSNamesystem.Context=dfs.HAState=active.TotalSyncTimes=20
.Hostname=centos7.TransactionsSinceLastCheckpoint 2 1446359392]
[dfs.FSNamesystem.Context=dfs.HAState=active.TotalSyncTimes=20
.Hostname=centos7.TransactionsSinceLastLogRoll 1 1446359392]
...
{noformat}
We can put the metrics to InfluxDB in the form like below which is easy to
query and visualize.
{noformat}
dfs.FSNamesystem,Context=dfs,HAState=active,TotalSyncTimes=20\
,Hostname=centos7
MissingBlocks=0,MissingReplOneBlocks=0,ExpiredHeartbeats=0,TransactionsSinceLastLogRoll=1,...
1446359392
{noformat}
> Add support for InfluxDB as metrics sink
> ----------------------------------------
>
> Key: HADOOP-12511
> URL: https://issues.apache.org/jira/browse/HADOOP-12511
> Project: Hadoop Common
> Issue Type: New Feature
> Components: metrics
> Reporter: Masatake Iwasaki
> Assignee: Masatake Iwasaki
> Attachments: HADOOP-12511.001.patch
>
>
> Add InfluxDBSink to write metrics to InfluxDB. Because [the Line Protocol of
> InfluxDB|https://influxdb.com/docs/v0.9/write_protocols/line.html] expects
> data structure similar to MetricsRecord consisting of tags, metric values and
> timestamp, we can easily map the records to the format. We can use REST API
> or UDP to send records to InfluxDB.
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