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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-10002) WebUI shows logs unfriendly, especially when the amount of logs is large
Date Fri, 19 Oct 2018 07:51:03 GMT

    [ https://issues.apache.org/jira/browse/FLINK-10002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16656385#comment-16656385

ASF GitHub Bot commented on FLINK-10002:

ifndef-SleePy commented on a change in pull request #6770:  [FLINK-10002] [Webfrontend] WebUI
shows jm/tm logs more friendly.
URL: https://github.com/apache/flink/pull/6770#discussion_r226159561

 File path: flink-runtime/src/main/java/org/apache/flink/runtime/blob/BlobClient.java
 @@ -373,6 +373,54 @@ BlobKey putInputStream(@Nullable JobID jobId, InputStream inputStream,
+	/**
+	 * Uploads a given size of data from the given input stream to the BLOB server.
+	 *
+	 * @param jobId
+	 * 		the ID of the job the BLOB belongs to (or <tt>null</tt> if job-unrelated)
+	 * @param inputStream
+	 * 		the input stream to read the data from
+	 * @param blobType
+	 * 		whether the BLOB should become permanent or transient
+	 * @return the computed BLOB key of the uploaded BLOB
+	 *
+	 * @param count the size of data to upload
+	 *
+	 * @return the computed BLOB key of the uploaded BLOB
+	 *
+	 * @throws IOException
+	 * 		thrown if an I/O error occurs while uploading the data to the BLOB server
+	 */
+	BlobKey putInputStream (@Nullable JobID jobId, InputStream inputStream, BlobKey.BlobType
blobType, long count)
 Review comment:
   Same problem with `TransientBlobService.java`. We can avoid this new method.

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> WebUI shows logs unfriendly, especially when the amount of logs is large
> ------------------------------------------------------------------------
>                 Key: FLINK-10002
>                 URL: https://issues.apache.org/jira/browse/FLINK-10002
>             Project: Flink
>          Issue Type: Improvement
>          Components: Webfrontend
>            Reporter: zhangxinyu
>            Assignee: zhangxinyu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.7.0
>         Attachments: image-2018-09-10-11-38-07-973.png
> When a streaming job run for a long time, the amount of logs may be very large. The current
WebUI shows all content of logs. It will cost much time to download logs from task managers.
and the browser cannot display the logs.
> Therefore, I suggest that Flink uses DailyRollingAppender to split logs by default, and
task manager provides an API that can get logs based on a parameter of time interval. In this
way WebUI can display logs based on time interval.

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