I recently switched from running Flink on YARN to running Flink Standalone and I realized I had to add a sleep after ./start-cluster.sh (well, my Slurm adaptation of it). I did not have to explicitly wait before since Flink would wait until all YARN containers became available, so to be honest I don't know whether this is new or not. I just looked into an old log (well, from last Friday) and it took about 1 minute for 31 TMs to connect to 1 JM. They each had -Xms and -Xmx6079m though.
On Fri, Oct 2, 2015 at 5:44 PM, Stephan Ewen <se...@apache.org> wrote: > Is that a new observation that it takes so long, or has it always taken so > long? > > On Fri, Oct 2, 2015 at 5:40 PM, Robert Schmidtke <ro.schmid...@gmail.com> > wrote: > >> I figured the JM would be waiting for the TMs. Each of my nodes has 64G >> of memory available. >> >> On Fri, Oct 2, 2015 at 5:38 PM, Maximilian Michels <m...@apache.org> >> wrote: >> >>> Hi Robert, >>> >>> During startup, the task manager allocates the entire managed memory. >>> >>> From the log: >>> 17:03:33,554 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> - Using 0.7 of the currently free heap space for Flink >>> managed heap memory (34395 MB). >>> >>> It seems like you are allocating almost 35 GB of memory which might >>> take a bit (40 seconds still seems like too much time). What >>> configuration did you use for the task managers? Do you really have >>> that much memory or is your system swapping? >>> >>> I think the JobManager just appears to take a long time because the >>> TaskManagers register late. >>> >>> Cheers, >>> Max >>> >>> On Fri, Oct 2, 2015 at 5:26 PM, Robert Schmidtke <ro.schmid...@gmail.com> >>> wrote: >>> > Hi everyone, >>> > >>> > I'm wondering about the startup times of the TMs: >>> > >>> > ... >>> > 17:03:33,255 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Starting TaskManager actor >>> > 17:03:33,262 INFO >>> org.apache.flink.runtime.io.network.netty.NettyConfig >>> > - NettyConfig [server address: cumu02-05/130.73.144.64, server port: >>> 45731, >>> > memory segment size (bytes): 32768, transport type: NIO, number of >>> server >>> > threads: 0 (use Netty's default), number of client threads: 0 (use >>> Netty's >>> > default), server connect backlog: 0 (use Netty's default), client >>> connect >>> > timeout (sec): 120, send/receive buffer size (bytes): 0 (use Netty's >>> > default)] >>> > 17:03:33,266 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Messages between TaskManager and JobManager have a max timeout of >>> 100000 >>> > milliseconds >>> > 17:03:33,268 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Temporary file directory '/tmp': total 44 GB, usable 37 GB (84.09% >>> usable) >>> > 17:03:33,295 INFO >>> > org.apache.flink.runtime.io.network.buffer.NetworkBufferPool - >>> Allocated 64 >>> > MB for network buffer pool (number of memory segments: 2048, bytes per >>> > segment: 32768). >>> > 17:03:33,554 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Using 0.7 of the currently free heap space for Flink managed heap >>> memory >>> > (34395 MB). >>> > >>> > // almost 40 seconds // >>> > >>> > 17:04:12,445 INFO org.apache.flink.runtime.io.disk.iomanager.IOManager >>> > - I/O manager uses directory >>> > /tmp/flink-io-922d9bf4-254e-41e7-b151-525157cd5bfe for spill files. >>> > 17:04:12,455 INFO org.apache.flink.runtime.filecache.FileCache >>> > - User file cache uses directory >>> > /tmp/flink-dist-cache-792cf7f2-e2be-4950-a39f-d7a21326f054 >>> > 17:04:12,617 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Starting TaskManager actor at >>> akka://flink/user/taskmanager#1341641688. >>> > 17:04:12,617 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - TaskManager data connection information: cumu02-05.zib.de >>> (dataPort=45731) >>> > 17:04:12,618 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - TaskManager has 16 task slot(s). >>> > 17:04:12,618 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Memory usage stats: [HEAP: 35502/49216/49216 MB, NON HEAP: 25/52/214 >>> MB >>> > (used/committed/max)] >>> > 17:04:12,623 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Trying to register at JobManager >>> > akka.tcp://flink@130.73.144.59:6123/user/jobmanager (attempt 1, >>> timeout: 500 >>> > milliseconds) >>> > 17:04:12,773 INFO org.apache.flink.runtime.taskmanager.TaskManager >>> > - Successful registration at JobManager >>> > (akka.tcp://flink@130.73.144.59:6123/user/jobmanager), starting >>> network >>> > stack and library cache. >>> > ... >>> > >>> > >>> > The same goes for the JM (obviously). >>> > >>> > ... >>> > 17:03:31,632 INFO org.apache.flink.runtime.jobmanager.JobManager >>> > - Starting JobManger web frontend >>> > 17:03:31,636 INFO >>> org.apache.flink.runtime.jobmanager.web.WebInfoServer >>> > - Setting up web info server, using web-root directory >>> > >>> jar:file:/nfs/csr/bzcschmi/flink/flink-dist/target/flink-0.10-SNAPSHOT-bin/flink-0.10-SNAPSHOT/lib/flink-dist-0.10-SNAPSHOT.jar!/web-docs-infoserver. >>> > 17:03:31,753 INFO org.eclipse.jetty.util.log >>> > - jetty-0.10-SNAPSHOT >>> > 17:03:31,806 INFO org.eclipse.jetty.util.log >>> > - Started SelectChannelConnector@0.0.0.0:8081 >>> > 17:03:31,806 INFO >>> org.apache.flink.runtime.jobmanager.web.WebInfoServer >>> > - Started web info server for JobManager on 0.0.0.0:8081 >>> > >>> > // almost 35 seconds // >>> > >>> > 17:04:05,091 INFO org.apache.flink.runtime.instance.InstanceManager >>> > - Registered TaskManager at cumu02-02 >>> > (akka.tcp://flink@130.73.144.61:53549/user/taskmanager) as >>> > e5ae92397a912c7360524524cf2d172a. Current number of registered hosts >>> is 1. >>> > Current number of alive task slots is 16. >>> > ... >>> > >>> > >>> > Is this to be expected? Any ideas what's happening in the meantime? I'm >>> > asking because I'm running into errors when submitting my job too >>> early (and >>> > not enough TMs have connected). >>> > >>> > Cheers >>> > Robert >>> > >>> > -- >>> > My GPG Key ID: 336E2680 >>> >> >> >> >> -- >> My GPG Key ID: 336E2680 >> > > -- My GPG Key ID: 336E2680
