Grup instance terkelola regional (MIG)
tidak akan seimbang jika perbedaan jumlah VM di antara
dua zona adalah 2 VM atau lebih. MIG regional dapat tidak seimbang jika Anda
menonaktifkan
redistribusi instance proaktif,
lalu menghapus atau mengabaikan instance sehingga menyebabkan distribusi yang tidak merata di seluruh
zona.
Jika grup Anda tidak seimbang dan Anda ingin mengaktifkan kembali distribusi instance proaktif,
Anda harus terlebih dahulu menyeimbangkan kembali grup Anda secara manual
untuk mencapai distribusi instance yang merata di seluruh zona.
Menyeimbangkan kembali secara manual dengan menghapus VM atau mengubah ukuran grup
Anda dapat menyeimbangkan kembali grup secara manual untuk mencapai distribusi
instance yang merata di seluruh zona dengan
menghapus
VM dari zona yang memiliki lebih banyak instance atau dengan
mengubah ukuran
untuk menambahkan instance ke zona dengan lebih sedikit VM hingga distribusi merata.
Saat Anda mengubah ukuran MIG yang menonaktifkan distribusi ulang instance proaktif,
grup masih secara oportunis menyatu ke keseimbangan, sehingga memperlakukan setiap
operasi pengubahan ukuran sebagai peluang untuk menyeimbangkan grup:
Saat grup bertambah, grup akan selalu mencoba menambahkan VM ke zona dengan
jumlah VM terkecil.
Saat grup menyusut, grup akan selalu menghapus VM dari zona yang memiliki
jumlah VM terbesar.
Contoh mengubah ukuran grup secara manual untuk mencapai pendistribusian ulang yang merata
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-08-19 UTC."],[[["\u003cp\u003eA regional managed instance group (MIG) is considered unbalanced when the difference in virtual machines (VMs) between two zones is two or more.\u003c/p\u003e\n"],["\u003cp\u003eManually rebalancing an unbalanced MIG involves deleting VMs from zones with more instances or resizing the group to add instances to zones with fewer VMs.\u003c/p\u003e\n"],["\u003cp\u003eEven with proactive instance redistribution turned off, resizing a MIG will cause it to opportunistically converge toward balance by adding VMs to zones with the fewest or removing them from the zones with the most.\u003c/p\u003e\n"],["\u003cp\u003eRe-enabling proactive redistribution requires an initial manual rebalancing of the MIG to ensure an even distribution of instances across zones.\u003c/p\u003e\n"]]],[],null,["*** ** * ** ***\n\nA\n[regional managed instance group (MIG)](/compute/docs/instance-groups#managed_instance_groups)\nis not balanced if the difference in the number of VMs between\ntwo zones is 2 or more VMs. A regional MIG can fall out of balance if you\ndisable\n[proactive instance redistribution](/compute/docs/instance-groups/regional-migs#proactive_instance_redistribution)\nand then delete or abandon instances to cause an uneven distribution across\nzones.\n\nIf your group is not balanced and you want to re-enable proactive instance\ndistribution, you must first manually rebalance your group to achieve an even\ndistribution of instances across zones.\n\nManually rebalance by deleting VMs or resizing the group\n\nYou can manually rebalance your group to achieve an even distribution of\ninstances across zones by\n[deleting](/compute/docs/instance-groups/add-remove-vms-in-mig#delete_from_group)\nVMs from zones with more instances or by\n[resizing](/compute/docs/instance-groups/add-remove-vms-in-mig#resize_managed_group)\nto add instances to zones with fewer VMs until the distribution is even.\n\nWhen you resize a MIG that has proactive instance redistribution turned off,\nthe group still *opportunistically* converges toward balance, treating each\nresize operation as an opportunity to balance the group:\n\n- When the group grows, the group always tries to add VMs to the zones with the smallest number of VMs.\n- When the group shrinks, the group always removes VMs from the zones with the largest number of VMs.\n\n[](/static/compute/images/rmig-manual-redistribution.svg) *Example of manually resizing a group to achieve even redistribution*\n\nWhat's next\n\n- Learn how to re-enable or disable [proactive redistribution](/compute/docs/instance-groups/regional-mig-enable-disable-proactive-redistribution).\n- Learn how to set a regional MIG's [target distribution shape](/compute/docs/instance-groups/regional-mig-set-target-distribution-shape)."]]
