Are you saying that Mina has a bug or are you proposing some new feature to handle your back pressure problem?
On Wed, Aug 30, 2017 at 7:52 PM jpalacios (JIRA) <j...@apache.org> wrote: > > [ > https://issues.apache.org/jira/browse/DIRMINA-1070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16148228#comment-16148228 > ] > > jpalacios commented on DIRMINA-1070: > ------------------------------------ > > Hi [~elecharny], > Thank you for getting back to me. Let me provide a bit more context to my > issue. > > Our application can stream gigabytes of data to clients based on a single > message. We need to ensure that at any given time only a certain amount of > bytes are inflight for any given session. The one message / one response > approach I don't think will work for us. Also, in my testing (at least with > my implementation of {{IoFilter}} I see that {{messageSent}} is not called > only for write requests created by our application. There are other > protocol messages which are handled by MINA while our application is > streaming which produce multiple writes. For instance in my testing I've > seen > {{org.apache.sshd.common.session.helpers.AbstractSession#handleNewKeys}} > putting messages into the {{DefaultWriteRequestQueue}}. > > Regards > Juan > > > Avoid unbounded message queueing when sending large amounts of data to > slow clients > > > ----------------------------------------------------------------------------------- > > > > Key: DIRMINA-1070 > > URL: https://issues.apache.org/jira/browse/DIRMINA-1070 > > Project: MINA > > Issue Type: New Feature > > Components: Core > > Reporter: jpalacios > > Labels: stability > > > > Our application runs an Apache MINA server to provide SSH support. We > are seeing {{OutOfMemoryError}} s when certain clients establish a session > with a large {{Window}} size. Particularly clients like TortoiseGit (which > uses TortoisePlink which in turn seems to use Putty) use an initial window > size of 2GB. From heap dumps we can see that the > {{DefaultWriteRequestQueue}} is filling up with {{WriteRequest}} instances > and taking up gigabytes of space until the heap blows. > > > > -- > This message was sent by Atlassian JIRA > (v6.4.14#64029) >
