Hi, From the top of my head I don’t remember anything particular, however release 1.4.0 came with quite a lot of deep change which had it’s fair share number of bugs, that were subsequently fixed in later releases.
Because 1.4.x tree is no longer supported I would strongly recommend to first upgrade to a more recent Flink version. If that’s not possible, I would at least upgrade to the latest release from 1.4.x tree (1.4.2). Piotrek > On 6 Jan 2020, at 07:25, vino yang <yanghua1...@gmail.com> wrote: > > Hi Navneeth, > > Since the file still exists, this exception is very strange. > > I want to ask, does it happen by accident or frequently? > > Another concern is that since the 1.4 version is very far away, all > maintenance and response are not as timely as the recent versions. I > personally recommend upgrading as soon as possible. > > I can ping @Piotr Nowojski <mailto:pi...@ververica.com> and see if it is > possible to explain the cause of this problem. > > Best, > Vino > > Navneeth Krishnan <reachnavnee...@gmail.com > <mailto:reachnavnee...@gmail.com>> 于2020年1月4日周六 上午1:03写道： > Thanks Congxian & Vino. > > Yes, the file do exist and I don't see any problem in accessing it. > > Regarding flink 1.9, we haven't migrated yet but we are planning to do. Since > we have to test it might take sometime. > > Thanks > > On Fri, Jan 3, 2020 at 2:14 AM Congxian Qiu <qcx978132...@gmail.com > <mailto:qcx978132...@gmail.com>> wrote: > Hi > > Do you have ever check that this problem exists on Flink 1.9? > > Best, > Congxian > > > vino yang <yanghua1...@gmail.com <mailto:yanghua1...@gmail.com>> 于2020年1月3日周五 > 下午3:54写道： > Hi Navneeth, > > Did you check if the path contains in the exception is really can not be > found? > > Best, > Vino > > Navneeth Krishnan <reachnavnee...@gmail.com > <mailto:reachnavnee...@gmail.com>> 于2020年1月3日周五 上午8:23写道： > Hi All, > > We are running into checkpoint timeout issue more frequently in production > and we also see the below exception. We are running flink 1.4.0 and the > checkpoints are saved on NFS. Can someone suggest how to overcome this? > > <image.png> > > java.lang.IllegalStateException: Could not initialize operator state backend. > at > org.apache.flink.streaming.api.operators.AbstractStreamOperator.initOperatorState(AbstractStreamOperator.java:302) > at > org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:249) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.initializeOperators(StreamTask.java:692) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:679) > at > org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:253) > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:718) > at java.lang.Thread.run(Thread.java:748) > Caused by: java.io.FileNotFoundException: > /mnt/checkpoints/02c4f8d5c11921f363b98c5959cc4f06/chk-101/e71d8eaf-ff4a-4783-92bd-77e3d8978e01 > (No such file or directory) > at java.io.FileInputStream.open0(Native Method) > at java.io.FileInputStream.open(FileInputStream.java:195) > at java.io.FileInputStream.<init>(FileInputStream.java:138) > at > org.apache.flink.core.fs.local.LocalDataInputStream.<init>(LocalDataInputStream.java:50) > > Thanks
