Github user d2r commented on a diff in the pull request:
https://github.com/apache/storm/pull/949#discussion_r47959612
--- Diff: docs/documentation/Logs.md ---
@@ -0,0 +1,30 @@
+---
+title: Storm Logs
+layout: documentation
+documentation: true
+---
+Logs in Storm are essential for tracking the status, operations, error
messages and debug information for all the
+daemons (nimbus, supervisor, logviewer, drpc, ui) and topologies' workers.
+
+### Location of the Logs
+All the daemon logs are placed under ${storm.log.dir} directory, which a
user can set in the System properties or
+in the cluster configuration. By default, ${storm.log.dir} points to
${storm.home}/logs.
+
+All the worker logs are placed under the workers-artifacts directory in a
hierarchical manner, e.g.,
+${workers-artifacts}/${topologyId}/${port}/worker.log. Users can set the
workers-artifacts directory
+by configuring the variable "storm.workers.artifacts.dir". By default,
workers-artifacts directory
+locates at ${storm.log.dir}/logs/workers-artifacts.
+
+### Using the Storm UI for Log View/Download and Log Search
+Daemon and worker logs are allowed to view and download through Storm UI
by authorized users.
+
+To improve the debugging of Storm, we provide the Log Search feature.
+Log Search supports searching in a certain log file or in a topology's all
log files:
+
+String search in a log file: In the log page for a worker, a user can
search a certain string, e.g., "Exception", in for a certain worker log. This
search can happen for both normal text log or rolled ziplog files. In the
results, the offset and matched lines will be displayed.
--- End diff --
`ziplog` -> `zip log`?
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