https://gm1.ggpht.com/FZGtbLggyPPZ_BoU0gt2SQTv7fyhNOKu03ZjsKq7G6DtqWJ5DY0NmL-2s64P-LUzedbTm8DE_FeggNtPAb4VEmypAoPfW8VFSFxOWxMGBvMi5G6xHoZ3THKPYHnAj8KydQ02OjvV-R3IEwBvwIDnZRmwCv3ohyjPF76gbvOOYrKzgaLb_pykWsQDpvROHr3lgU2rezH33Jt3xJEOjXGjHsUFUxiil0PYkQFdA0BP77lypYQLw4RL8BxMz3HfaCiNAGb_q5w8JNmckHLU3g9EuPgtqj6WP3XDv07PBuCXMvmfNcFbAciMeJuOOeE8VBqDCacjuiDtJzVrK1boxcBnzFvT_QazOwaJ27SSuJ_u5KCerTURen2vLBF1RN-x9eOVz9wg6w1oXyMAF7LMjGsYsVzUu3It5AyzLkm-_znosNtAJp2AW_qGmGo-k02fcrMjUoELiGvqn6W1kScnFI4gNWi_dpZe0Uoq1zF2m1crww1oNGOeRjFlCK_-iC19CPfsTVCtwN3tdKnaKdLe2TbfVdFA0DnBUz8NrhV-mvmZlEwi9-ngK-WOy8yjA4fin1zaE2SJCf2zfBSZwGR2eY_E_WZQiFRmSBI2A7vpoyFvTV3E99MIi0MC5PUAeRiu4v4JIVDkV_yUGIUvoa7pxdf7LpZN_DbikQVk7yES8kxxL5qG2Eae8vftWJuBVi5mWTxvElBgInyUntobXHdxfb2YR4JdBgVPN5QionJiIc9g5i0ClGECZbyHPbsQy4pEVw=s0-l75-ft-l75-ft
谢谢，看看能否看见
Benchao Li <libenc...@gmail.com> 于2020年1月9日周四 下午8:07写道：
> hi Kevin,
>
> 邮件里面贴不了图片，如果要贴图片，需要用一些第三方的图床工具。
> 或者你可以直接贴文字？
>
> Kevin Liao <lia...@gmail.com> 于2020年1月9日周四 下午7:10写道：
>
> > [image: B40C260D-DCC3-4B7D-A024-3839803C2234.png]
> >
> > Benchao Li <libenc...@gmail.com> 于2020年1月9日周四 下午6:42写道：
> >
> >> hi Kevin，
> >>
> >> 能贴一下MyMapFunction2.java:39 这里的代码吗？ 从上面的日志看不出来是valueState是null呢。
> >>
> >> Kevin Liao <lia...@gmail.com> 于2020年1月9日周四 下午5:57写道：
> >>
> >> > 早上发现任务异常，task 在不停重启，遂查看 jm 日志，最开始的报错是这样的
> >> >
> >> > ```
> >> > 2020-01-09 05:14:04.087 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (3/6) (d0e6c4a05d0274c18a4a3df41ab5ff1b) switched from
> >> > RUNNING to FAILED.
> >> > java.lang.NullPointerException: null
> >> > at com.sogou.qidian.MyMapFunction2.map(MyMapFunction2.java:39)
> >> > at com.sogou.qidian.MyMapFunction2.map(MyMapFunction2.java:25)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.api.operators.StreamMap.processElement(StreamMap.java:41)
> >> > at
> >> > org.apache.flink.streaming.runtime.io
> >> >
> >>
> .StreamOneInputProcessor.processElement(StreamOneInputProcessor.java:164)
> >> > at
> >> > org.apache.flink.streaming.runtime.io
> >> >
> .StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:143)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:279)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.runtime.tasks.StreamTask.run(StreamTask.java:301)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:406)
> >> > at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705)
> >> > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
> >> > at java.lang.Thread.run(Thread.java:748)
> >> > 2020-01-09 05:14:04.088 [flink-akka.actor.default-dispatcher-28] INFO
> >> > o.a.f.r.e.failover.flip1.RestartPipelinedRegionStrategy -
> Calculating
> >> > tasks to restart to recover the failed task
> >> > 90bea66de1c231edf33913ecd54406c1_2.
> >> > 2020-01-09 05:14:04.088 [flink-akka.actor.default-dispatcher-28] INFO
> >> > o.a.f.r.e.failover.flip1.RestartPipelinedRegionStrategy - 12 tasks
> >> should
> >> > be restarted to recover the failed task
> >> 90bea66de1c231edf33913ecd54406c1_2.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (6/6) (ac52050e60236cd1efcd262c8240cd25) switched
> from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (5/6) (cf4ff0c189315b27e7e2178d8c60e49f) switched
> from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (4/6) (8c8b07cb39a3f682f41f102e614765e6) switched
> from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (3/6) (34aadddbffe9f61b1916bcd1427ced96) switched
> from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (6/6) (de624cf5c9d4dec6fe68d4800c701457) switched from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (4/6) (e52c1e70884a6599205f9e0f5b092bc0) switched from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (5/6) (60496dddb4bc885ee37a6025662080ad) switched from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.089 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (2/6) (bf8515b4f9e852182a5519102fe4fdf3) switched from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.090 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (2/6) (bb14d5776c53babcc57edd65bf7159b0) switched
> from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.090 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (1/6) (4c7cd6eaf5c3ca9c2b0db73e7d230a9e) switched
> from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.090 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (1/6) (4a157d98db2f2efad72035af279433ff) switched from
> >> > RUNNING to CANCELING.
> >> > 2020-01-09 05:14:04.096 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (1/6) (4c7cd6eaf5c3ca9c2b0db73e7d230a9e) switched
> from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.101 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (2/6) (bb14d5776c53babcc57edd65bf7159b0) switched
> from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.103 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (5/6) (cf4ff0c189315b27e7e2178d8c60e49f) switched
> from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.115 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (2/6) (bf8515b4f9e852182a5519102fe4fdf3) switched from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.119 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (4/6) (e52c1e70884a6599205f9e0f5b092bc0) switched from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.140 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (6/6) (de624cf5c9d4dec6fe68d4800c701457) switched from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.140 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Discarding
> >> the
> >> > results produced by task execution de624cf5c9d4dec6fe68d4800c701457.
> >> > 2020-01-09 05:14:04.141 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (6/6) (ac52050e60236cd1efcd262c8240cd25) switched
> from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.141 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (5/6) (60496dddb4bc885ee37a6025662080ad) switched from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.141 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Discarding
> >> the
> >> > results produced by task execution 60496dddb4bc885ee37a6025662080ad.
> >> > 2020-01-09 05:14:04.142 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (4/6) (8c8b07cb39a3f682f41f102e614765e6) switched
> from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.142 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (1/6) (4a157d98db2f2efad72035af279433ff) switched from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.142 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Discarding
> >> the
> >> > results produced by task execution 4a157d98db2f2efad72035af279433ff.
> >> > 2020-01-09 05:14:04.143 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (3/6) (34aadddbffe9f61b1916bcd1427ced96) switched
> from
> >> > CANCELING to CANCELED.
> >> > 2020-01-09 05:14:04.143 [flink-akka.actor.default-dispatcher-28] INFO
> >> > o.a.f.r.e.failover.AdaptedRestartPipelinedRegionStrategyNG - Finally
> >> > restart 12 tasks to recover from task failure.
> >> > 2020-01-09 05:14:04.144 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.checkpoint.CheckpointCoordinator -
> Restoring
> >> job
> >> > 7907d93e17fccf460069c2ca7f13d7e7 from latest valid checkpoint:
> >> Checkpoint
> >> > 720 @ 1578518011978 for 7907d93e17fccf460069c2ca7f13d7e7.
> >> > 2020-01-09 05:14:04.145 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.checkpoint.CheckpointCoordinator - No
> master
> >> > state to restore
> >> > 2020-01-09 05:14:04.145 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (2/6) (d83eee0b90a0e4a4dcff3e1ca6bed8b6) switched
> from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.145 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (4/6) (da6e91a7475712da5ca52fc82069345f) switched
> from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.145 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (1/6) (ffa3b56b4e1321aa5ec94e040921e223) switched
> from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.145 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (3/6) (5c3fb959f79d53cdca506188ed40cc6d) switched
> from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.146 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (5/6) (7a2252b0a18cd91211adae3ce3b613be) switched
> from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.146 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (6/6) (6010486f42fc1e0e7c93623174bf0477) switched
> from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.146 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (1/6) (eb06b4212d17f10cf4a8bcc812eaa073) switched from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.146 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (2/6) (af4e3fc75729a2d035db42ec95e44189) switched from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.146 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (3/6) (adb9b0aabe0234fe336211f5e44e18f3) switched from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.146 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (4/6) (9ad2c9ee62ff804683284b0cdf571c99) switched from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.146 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (6/6) (1e66dc5791940cf7e213b1b3cf8cf1fd) switched from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (5/6) (4cb656b991141acbbe9e1033103ab470) switched from
> >> > CREATED to SCHEDULED.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (2/6) (d83eee0b90a0e4a4dcff3e1ca6bed8b6) switched
> from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> > Source: Custom Source -> Filter (2/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000003 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=15754)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (4/6) (da6e91a7475712da5ca52fc82069345f) switched
> from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> > Source: Custom Source -> Filter (4/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000002 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=20658)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (1/6) (ffa3b56b4e1321aa5ec94e040921e223) switched
> from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> > Source: Custom Source -> Filter (1/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000003 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=15754)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (3/6) (5c3fb959f79d53cdca506188ed40cc6d) switched
> from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> > Source: Custom Source -> Filter (3/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000002 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=20658)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (5/6) (7a2252b0a18cd91211adae3ce3b613be) switched
> from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> > Source: Custom Source -> Filter (5/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000003 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=15754)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (6/6) (6010486f42fc1e0e7c93623174bf0477) switched
> from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> > Source: Custom Source -> Filter (6/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000002 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=20658)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (1/6) (eb06b4212d17f10cf4a8bcc812eaa073) switched from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> Map ->
> >> > Filter -> Sink: Unnamed (1/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000002 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=20658)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (2/6) (af4e3fc75729a2d035db42ec95e44189) switched from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> Map ->
> >> > Filter -> Sink: Unnamed (2/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000003 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=15754)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (3/6) (adb9b0aabe0234fe336211f5e44e18f3) switched from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> Map ->
> >> > Filter -> Sink: Unnamed (3/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000003 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=15754)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (4/6) (9ad2c9ee62ff804683284b0cdf571c99) switched from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> Map ->
> >> > Filter -> Sink: Unnamed (4/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000003 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=15754)
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (6/6) (1e66dc5791940cf7e213b1b3cf8cf1fd) switched from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.147 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> Map ->
> >> > Filter -> Sink: Unnamed (6/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000002 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=20658)
> >> > 2020-01-09 05:14:04.148 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (5/6) (4cb656b991141acbbe9e1033103ab470) switched from
> >> > SCHEDULED to DEPLOYING.
> >> > 2020-01-09 05:14:04.148 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Deploying
> >> Map ->
> >> > Filter -> Sink: Unnamed (5/6) (attempt #2) to
> >> > container_e06_1577354972821_672000_01_000002 @
> >> > rsync.slave713.mars.hadoop.js.ted (dataPort=20658)
> >> > 2020-01-09 05:14:04.159 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (1/6) (ffa3b56b4e1321aa5ec94e040921e223) switched
> from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.160 [flink-akka.actor.default-dispatcher-28] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (2/6) (d83eee0b90a0e4a4dcff3e1ca6bed8b6) switched
> from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.161 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (5/6) (7a2252b0a18cd91211adae3ce3b613be) switched
> from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.168 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (4/6) (9ad2c9ee62ff804683284b0cdf571c99) switched from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.169 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (4/6) (da6e91a7475712da5ca52fc82069345f) switched
> from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.170 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (6/6) (6010486f42fc1e0e7c93623174bf0477) switched
> from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.170 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (2/6) (af4e3fc75729a2d035db42ec95e44189) switched from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.173 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (3/6) (adb9b0aabe0234fe336211f5e44e18f3) switched from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.210 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Source:
> >> Custom
> >> > Source -> Filter (3/6) (5c3fb959f79d53cdca506188ed40cc6d) switched
> from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.230 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (1/6) (eb06b4212d17f10cf4a8bcc812eaa073) switched from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.231 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (6/6) (1e66dc5791940cf7e213b1b3cf8cf1fd) switched from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.245 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (5/6) (4cb656b991141acbbe9e1033103ab470) switched from
> >> > DEPLOYING to RUNNING.
> >> > 2020-01-09 05:14:04.922 [flink-akka.actor.default-dispatcher-14] INFO
> >> > org.apache.flink.runtime.executiongraph.ExecutionGraph - Map ->
> >> Filter ->
> >> > Sink: Unnamed (3/6) (adb9b0aabe0234fe336211f5e44e18f3) switched from
> >> > RUNNING to FAILED.
> >> > java.lang.NullPointerException: null
> >> > at com.sogou.qidian.MyMapFunction2.map(MyMapFunction2.java:39)
> >> > at com.sogou.qidian.MyMapFunction2.map(MyMapFunction2.java:25)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.api.operators.StreamMap.processElement(StreamMap.java:41)
> >> > at
> >> > org.apache.flink.streaming.runtime.io
> >> >
> >>
> .StreamOneInputProcessor.processElement(StreamOneInputProcessor.java:164)
> >> > at
> >> > org.apache.flink.streaming.runtime.io
> >> >
> .StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:143)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:279)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.runtime.tasks.StreamTask.run(StreamTask.java:301)
> >> > at
> >> >
> >> >
> >>
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:406)
> >> > at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705)
> >> > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
> >> > at java.lang.Thread.run(Thread.java:748)
> >> > ```
> >> >
> >> > 之后就是不停的循环，怪异的是 MyMapFunction2.java:39内容是
> >> > ```
> >> >
> >> > if (null != uniqMark.value() && uniqMark.value()) {
> >> >
> >> > ```
> >> >
> >> > 而报错的时间点距离任务启动差不多就是 12 小时，符合我设置的 valueState 的 ttl
> >> >
> >> > ```
> >> >
> >> > @Override
> >> > public void open(Configuration parameters) throws Exception {
> >> > ValueStateDescriptor<Boolean> descriptor = new
> >> > ValueStateDescriptor<>("uniqMark",
> >> > TypeInformation.of(Boolean.class));
> >> > StateTtlConfig ttlConfig = StateTtlConfig.newBuilder(Time.hours(1))
> >> > .setUpdateType(UpdateType.OnCreateAndWrite)
> >> > .setStateVisibility(StateVisibility.ReturnExpiredIfNotCleanedUp)
> >> > .cleanupIncrementally(1000, false)
> >> > .build();
> >> > descriptor.enableTimeToLive(ttlConfig);
> >> > uniqMark = getRuntimeContext().getState(descriptor);
> >> > }
> >> >
> >> > ```
> >> >
> >> > 所以我猜测在什么极端情况下会出现 valueState 自身变为 null 的情况么？（比如刚刚被清理的瞬间）？
> >> >
> >> > 求各位指正
> >> >
> >>
> >>
> >> --
> >>
> >> Benchao Li
> >> School of Electronics Engineering and Computer Science, Peking
> University
> >> Tel:+86-15650713730
> >> Email: libenc...@gmail.com; libenc...@pku.edu.cn
> >>
> >
>
> --
>
> Benchao Li
> School of Electronics Engineering and Computer Science, Peking University
> Tel:+86-15650713730
> Email: libenc...@gmail.com; libenc...@pku.edu.cn
>
