Hi Tobias, If your number of pipelines equals number of Flink job then this is exactly what you should observe: It takes one slot per Flink job and parallelism, hence for parallelism 1 you would have to provide at least 40 slots.
… independent of Flink version … for Beam on Flink I’m not sure, assuming similar matters Thias From: Kaymak, Tobias <tobias.kay...@ricardo.ch> Sent: Freitag, 24. September 2021 14:53 To: user <user@flink.apache.org> Subject: Upgrading from 1.11.3 -> 1.13.1 - random jobs stays in "CREATED"state, then fails with Slot request bulk is not fulfillable! Hi, I am trying to upgrade our Flink cluster from version 1.11.3 -> 1.13.1 We use it to execute over 40 pipelines written in Apache Beam 2.32.0. While moving the pipelines one-by-one over to the new cluster I noticed at some point that it did not start a new pipeline after I moved about 20. 4 TM with 8 slots are running, giving 32 slots to run things. When I kill the jobmanager pod to make it reload the config, a random pipeline is then stuck in the CREATED state. No log is shown but after some minutes it's visible that: Slot request bulk is not fulfillable! Could not allocate the required slot within slot request timeout I found this post: http://mail-archives.apache.org/mod_mbox/flink-issues/202106.mbox/%3cjira.13382840.1623216280000.576520.1623246960...@atlassian.jira%3E However, I am running the official Docker images of Flink, TM and JM are in sync. I checked that there is no memory pressure on TM and JM: [cid:image001.png@01D7B50B.6E949D20] [cid:image002.png@01D7B50B.6E949D20] Any advice on how to debug this situation? jobmanager.memory.heap.size: 3500m jobmanager.memory.jvm-overhead.max: 1536m jobmanager.memory.process.size: 5gb jobmanager.memory.off-heap.size: 512m jobmanager.memory.jvm-metaspace.size: 512m taskmanager.memory.process.size: 54gb taskmanager.memory.jvm-metaspace.size: 2gb taskmanager.memory.task.off-heap.size: 2gb Best, Tobi Diese Nachricht ist ausschliesslich für den Adressaten bestimmt und beinhaltet unter Umständen vertrauliche Mitteilungen. Da die Vertraulichkeit von e-Mail-Nachrichten nicht gewährleistet werden kann, übernehmen wir keine Haftung für die Gewährung der Vertraulichkeit und Unversehrtheit dieser Mitteilung. Bei irrtümlicher Zustellung bitten wir Sie um Benachrichtigung per e-Mail und um Löschung dieser Nachricht sowie eventueller Anhänge. Jegliche unberechtigte Verwendung oder Verbreitung dieser Informationen ist streng verboten. This message is intended only for the named recipient and may contain confidential or privileged information. As the confidentiality of email communication cannot be guaranteed, we do not accept any responsibility for the confidentiality and the intactness of this message. If you have received it in error, please advise the sender by return e-mail and delete this message and any attachments. Any unauthorised use or dissemination of this information is strictly prohibited.