What is the best way to check this JVM memory usage?
From: Jeff Zhang [mailto:zjf...@gmail.com] Sent: Tuesday, February 18, 2020 09:53 To: users Subject: Re: Zeppelin performances with a lot of notebooks Then I guess it is due to backend issue. Could you check the memory usage of the JVM process ? In 0.8, all the notes will be loaded in to memory, which might be the reason of slow performance. <stephane.d...@orange.com> 于2020年2月18日周二 下午4:38写道： Yes, it is slow in another tab, its slow even if I close and re-open by browser. From: Jeff Zhang [mailto:zjf...@gmail.com] Sent: Tuesday, February 18, 2020 09:36 To: users Subject: Re: Zeppelin performances with a lot of notebooks It's hard to say. Have you tried to open another tab ? If it is still slow, then it might be issue in backend. <stephane.d...@orange.com> 于2020年2月18日周二 下午4:32写道： Hello, I’m facing performances issues with zeppelin. It seems that these performances are mainly located on the browser side. I have actually a Zeppelin instance with quite a lot of notebooks and many paragraphs inside, and I find that Zeppelin refresh and rendering is really slow. It means for example that the spark job is finished, but the Web UI shows that it is 20% completed, and it takes a few minutes to reflect the real spark status. So, I extracted one notebook, and imported it in another Zeppelin on the same server. Actually, I have this: - A Zeppelin 0.8.0 which comes with Hortonworks data platform - A standalone Zeppelin 0.8.2 on the same server, with the same configuration for memory And then, my notebook imported in the standalone instance runs really fastly. One difference I also have between the 2 instances is that the standalone one has its notebook on local filesystem, while the HDP one has its notebook on hdfs. For sure, hdfs access is slower than the local fs one. Can this also be a possible origin of this issue? Thanks for your help, Stéphane -- Best Regards Jeff Zhang -- Best Regards Jeff Zhang
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