[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15215996#comment-15215996 ] Steve Loughran commented on SPARK-6270: --- There's actually some security implications too: the shared history server means shared-writeable data dir and no privacy in who can see your histories. And it has its own scaleability issues with long-logs. Security wise, users are free to launch their own history server instances; the existing one could be enhanced by adding in the yarn module the ability to launch one. Alternatively, use kerberos all the way through, so the caller's credentials are used to read the data in the FS, or at least to restrict access to all but job summaries. Scale-wise streaming jobs create logs too big to read in again. One short term (i.e. ugly) workaround would be for the logger to be configurable with a log limit: once a threshold of events/jobs had been saved, it would stop logging more. But that essentially hard-codes in assumptions about the scalability of the reader, which may not hold in future. > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053810#comment-15053810 ] Josh Rosen commented on SPARK-6270: --- While I think that we should have this discussion about UI reconstruction of long-running applications, I think this is orthogonal to the right solution for this issue (SPARK-6270). The root problem here, related to the master / cluster manager dying, seems to be caused by a design flaw: why is the master responsible for serving historical UIs? The standalone history server process should have that responsibility, since UI serving might need a lot of memory. I think the right fix here is to just remove the Master's embedded history server; I just don't think it makes sense to assign history server responsibilities to the master when it's designed to be a very low-resource-use, high-stability, high-resiliency service. > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053915#comment-15053915 ] Andrew Or commented on SPARK-6270: -- +1 to removing history serving functionality from standalone Master > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053929#comment-15053929 ] Andrew Or commented on SPARK-6270: -- [~shivaram] That may be difficult to do because different applications can specify different log directories, whereas now the history server reads all logs in the same one. Also it would add complexity to the Master process because now it binds to two ports instead of one. I think we should try to keep it lightweight in the future and simply rip out this functionality. With Spark 2.0 I believe we're allowed to do that. :) > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053921#comment-15053921 ] Shivaram Venkataraman commented on SPARK-6270: -- Yeah I think thats a fair solution to this problem. Could we fork the history server as a separate process in `start-master.sh` if event logging is enabled ? Then we might even be able to preserve some backward compatibility without users having to start an additional service. > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053395#comment-15053395 ] Andrew Or commented on SPARK-6270: -- Yeah, some regression tests would be helpful, though in my case I needed to run something complicated enough to reproduce the issue. I think a real long-term fix would be to periodically checkpoint the UI state and truncate the event log. > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053399#comment-15053399 ] Andrew Or commented on SPARK-6270: -- Also, we should consider switching event log compression on by default. These files are highly compressible and in my case I've noticed ratios of 10X (which saved around 10G of disk space). > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053400#comment-15053400 ] Shivaram Venkataraman commented on SPARK-6270: -- +1 on compression. Is there a flag to turn it on right now ? Would be great if we can just save and read GZIP files > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053405#comment-15053405 ] Andrew Or commented on SPARK-6270: -- You can set `spark.eventLog.compress` to true > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053512#comment-15053512 ] Steve Loughran commented on SPARK-6270: --- replay time itself is going to be steep, which, given that summary metadata doesn't really need, is a large amount of wasted IO, coded CPU and Json deser. Now, if someone were to have a protobuf or avro event format, you'd get really good compression in exchange for the suffering of developers. What could boost startup is what comes in the yarn timeline integration: extraction of summary data (times, finished flag) without having to do the replay. A summary file alongside the main one would work there, perhaps with the file length of real log listed in the summary so as to prove that the summary is in sync with the saved log. (mismatch == fallback to replay, save the summary for next time). There's one more thing to consider with those standalone logs —if the destination is an object store, should the flush/commit logic be different? You'd want to make sure that an s3a dest had multipart upload enabled, then have a partial upload trigger on a flush-class event, rather than wait until the end of the run. Today you don't get those guarantees and hence run the risk that a failed app could lose the history > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053223#comment-15053223 ] Shivaram Venkataraman commented on SPARK-6270: -- I looked into our log file more closely and in our case the size blow up was from the storage information saved in SparkListenerJobStart. From what I can see we added RDD scope, parentIds to be logged either per block or per RDD in 1.5.0 as a part of https://github.com/apache/spark/commit/fc8b58195afa67fbb75b4c8303e022f703cbf007#diff-4f6ba18259eb4c31ac930e18f1ba6f88 -- I'm guessing this is the cause, but I haven't run the same application with 1.4.x to verify yet. FWIW I noticed that [~andrewor14] checked in a change to avoid a similar issue in 1.6 in https://github.com/apache/spark/commit/688e521c2833a00069272a6749153d721a0996f6 -- It would be cool to have some regression tests which measure the event log size for common benchmarks across releases. > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15053924#comment-15053924 ] Andrew Or commented on SPARK-6270: -- I have filed a JIRA for it: https://issues.apache.org/jira/browse/SPARK-12299 > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15051753#comment-15051753 ] Steve Loughran commented on SPARK-6270: --- [~shivaram] : can you have a look @ the logs and see what events were common. Just curious: is there something that's too noisy...that could be the root cause. > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15051438#comment-15051438 ] Shivaram Venkataraman commented on SPARK-6270: -- FWIW this problem happens 1.5.2 as well -- I'm not sure if something in the event logging infrastructure changed but for one our applications we end up getting 2.5G event logs for a short job (around 20mins or so). This in turn leads to https://issues.apache.org/jira/browse/SPARK-11928 > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0, 1.5.1 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14970915#comment-14970915 ] Jim Haughwout commented on SPARK-6270: -- [~tdas]: Can the team update this issue to reflect that this _also_ affects Versions 1.3.1, 1.4.0, 1.4.1, 1.5.0, and 1.5.1? > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14942483#comment-14942483 ] Josh Rosen commented on SPARK-6270: --- To my knowledge, this has _not_ been fixed in 1.5.0 / 1.5.1. > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Commented] (SPARK-6270) Standalone Master hangs when streaming job completes and event logging is enabled
[ https://issues.apache.org/jira/browse/SPARK-6270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14942108#comment-14942108 ] Jim Haughwout commented on SPARK-6270: -- [~tdas]: Was this fixed in 1.5.0? Affecting our team as well. Turning what should be zero-impact stop and re-submits into long outages while we wait for Master to settle > Standalone Master hangs when streaming job completes and event logging is > enabled > - > > Key: SPARK-6270 > URL: https://issues.apache.org/jira/browse/SPARK-6270 > Project: Spark > Issue Type: Bug > Components: Deploy, Streaming >Affects Versions: 1.2.0, 1.2.1, 1.3.0 >Reporter: Tathagata Das >Priority: Critical > > If the event logging is enabled, the Spark Standalone Master tries to > recreate the web UI of a completed Spark application from its event logs. > However if this event log is huge (e.g. for a Spark Streaming application), > then the master hangs in its attempt to read and recreate the web ui. This > hang causes the whole standalone cluster to be unusable. > Workaround is to disable the event logging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
