Re: June Community Meeting (Pods with servers + Envoy/Istio side cars) ...

[Shelley Hughes-Godfrey]

After watching the recording posted by Alexander for the June geode community 
meeting, I wondered if the cleanest thing to do is to ensure that "server2" (in 
the same pod with the Istio/Envoy sidecar that terminates) is also terminated.

I know that in our in-house testing, we use a sidecar with a preStop hook to 
pull back the logs each time a server or locator terminates.  The side car gets 
a SIGTERM when the server or locator is shutdown and we're able to pull back 
our logs before the server or locator completes its shutdown.  This made me 
wonder if perhaps this could be done the other way ... when the sidecar gets a 
termination signal, can it do something to shutdown the server in that same pod?

I found this slide deck online which discusses a workaround for Istio/Envoy 
sidecars with postStart and preStop hooks for the sidecar and the app, so it 
seems that this is something that may be configurable (see pages 16-19).
https://events.istio.io/istiocon-2021/slides/g6a-LongWildRiver-RaphaelFraysse.pdfPerhaps
 something like this could be used to force "server2" to exit when the sidecar 
is terminated.


-l-








From: Alexander Murmann 
Sent: Wednesday, June 2, 2021 11:52 AM
To: dev@geode.apache.org 
Subject: Re: June Community Meeting

Hi everyone!

The wiki 
page<https://cwiki.apache.org/confluence/display/GEODE/Apache+Geode+Community+Meeting+Notes>
 now is updated with a very short summary of our meeting today and a link to 
the recording.

Thanks to everyone who attended and especially Petar Tomic for presenting!

From: Alberto Gomez 
Sent: Monday, May 31, 2021 07:07
To: dev@geode.apache.org 
Subject: Re: June Community Meeting

Hi all,

Just a short note to inform you that we have added some more information in the 
Wiki page about the topic we plan to present in the meeting:


  *   Title: "Servers waiting indefinitely for a reply"
  *   Summary: If a packet is lost between servers, multiple threads get stuck 
and servers wait indefinitely for a reply, without any retry mechanism or 
timeout.
  *   Context: 
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmarkmail.org%2Fsearch%2F%3Fq%3Dlist%253Aorg.apache.geode.dev%2Border%253Adate-backward%23query%3Alist%253Aorg.apache.geode.dev%2520order%253Adate-backward%2Bpage%3A1%2Bmid%3Al6uw5vs62vmtcxo4%2Bstate%3Aresultsdata=04%7C01%7Clhughes%40vmware.com%7C2a2ef0f384724ca24df408d925f7949b%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637582567562979984%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000sdata=Ut4twLonYCeKze%2BZD80yoCvtnSP2KuBrL2Fu7lXzIiA%3Dreserved=0

Best regards,

Alberto

From: Alexander Murmann 
Sent: Wednesday, May 26, 2021 11:55 PM
To: geode 
Subject: June Community Meeting

Hi everyone,

Next Wednesday, June 2nd, it's time for our next Geode Community Meeting.

So far, our only agenda item is "geode retry/acknowledge improvement" presented 
by contributors from the team at Ericsson.

If you have anything you'd like to present or discuss, please add it to our 
agenda on the project 
Confluence<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwiki.apache.org%2Fconfluence%2Fdisplay%2FGEODE%2FApache%2BGeode%2BCommunity%2BMeeting%2BNotesdata=04%7C01%7Clhughes%40vmware.com%7C2a2ef0f384724ca24df408d925f7949b%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637582567562979984%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000sdata=6r0KcyEu%2FImHecamMAnAJBIHmuL6uEzgPymCF%2B9XCgA%3Dreserved=0>.
 The same page also contains information on how to join.


Looking forward to seeing you all there!

Re: June Community Meeting

[Alexander Murmann]

Hi everyone!

The wiki 
page<https://cwiki.apache.org/confluence/display/GEODE/Apache+Geode+Community+Meeting+Notes>
 now is updated with a very short summary of our meeting today and a link to 
the recording.

Thanks to everyone who attended and especially Petar Tomic for presenting!

From: Alberto Gomez 
Sent: Monday, May 31, 2021 07:07
To: dev@geode.apache.org 
Subject: Re: June Community Meeting

Hi all,

Just a short note to inform you that we have added some more information in the 
Wiki page about the topic we plan to present in the meeting:


  *   Title: "Servers waiting indefinitely for a reply"
  *   Summary: If a packet is lost between servers, multiple threads get stuck 
and servers wait indefinitely for a reply, without any retry mechanism or 
timeout.
  *   Context: 
https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmarkmail.org%2Fsearch%2F%3Fq%3Dlist%253Aorg.apache.geode.dev%2Border%253Adate-backward%23query%3Alist%253Aorg.apache.geode.dev%2520order%253Adate-backward%2Bpage%3A1%2Bmid%3Al6uw5vs62vmtcxo4%2Bstate%3Aresultsdata=04%7C01%7Camurmann%40vmware.com%7C31ebe9b9535c4ae0317008d9243d7bb7%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C1%7C637580668760838009%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=apgD8MLWngDBxbId0%2FkK9yPijaj%2BamjCc%2BdclLA58DM%3Dreserved=0

Best regards,

Alberto

From: Alexander Murmann 
Sent: Wednesday, May 26, 2021 11:55 PM
To: geode 
Subject: June Community Meeting

Hi everyone,

Next Wednesday, June 2nd, it's time for our next Geode Community Meeting.

So far, our only agenda item is "geode retry/acknowledge improvement" presented 
by contributors from the team at Ericsson.

If you have anything you'd like to present or discuss, please add it to our 
agenda on the project 
Confluence<https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcwiki.apache.org%2Fconfluence%2Fdisplay%2FGEODE%2FApache%2BGeode%2BCommunity%2BMeeting%2BNotesdata=04%7C01%7Camurmann%40vmware.com%7C31ebe9b9535c4ae0317008d9243d7bb7%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C1%7C637580668760838009%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=6rWsNzgKu2gDm6gMas07q%2BpgL8EPVJiow1J132tODgU%3Dreserved=0>.
 The same page also contains information on how to join.


Looking forward to seeing you all there!

Re: June Community Meeting

[Alberto Gomez]

Hi all,

Just a short note to inform you that we have added some more information in the 
Wiki page about the topic we plan to present in the meeting:


  *   Title: "Servers waiting indefinitely for a reply"
  *   Summary: If a packet is lost between servers, multiple threads get stuck 
and servers wait indefinitely for a reply, without any retry mechanism or 
timeout.
  *   Context: 
https://markmail.org/search/?q=list%3Aorg.apache.geode.dev+order%3Adate-backward#query:list%3Aorg.apache.geode.dev%20order%3Adate-backward+page:1+mid:l6uw5vs62vmtcxo4+state:results

Best regards,

Alberto

From: Alexander Murmann 
Sent: Wednesday, May 26, 2021 11:55 PM
To: geode 
Subject: June Community Meeting

Hi everyone,

Next Wednesday, June 2nd, it's time for our next Geode Community Meeting.

So far, our only agenda item is "geode retry/acknowledge improvement" presented 
by contributors from the team at Ericsson.

If you have anything you'd like to present or discuss, please add it to our 
agenda on the project 
Confluence<https://cwiki.apache.org/confluence/display/GEODE/Apache+Geode+Community+Meeting+Notes>.
 The same page also contains information on how to join.


Looking forward to seeing you all there!

June Community Meeting

[Alexander Murmann]

Hi everyone,

Next Wednesday, June 2nd, it's time for our next Geode Community Meeting.

So far, our only agenda item is "geode retry/acknowledge improvement" presented 
by contributors from the team at Ericsson.

If you have anything you'd like to present or discuss, please add it to our 
agenda on the project 
Confluence.
 The same page also contains information on how to join.


Looking forward to seeing you all there!