neverchanje opened a new pull request #585:
URL: https://github.com/apache/incubator-pegasus/pull/585
### What problem does this PR solve? <!--add issue link with summary if
exists-->
The script return when get the `op_count=0` at `rebalance stage` when using
the `pegasus_rolling_update.sh ` to update cluster `all` job(meta, replica,
collector). However, `op_count` may have not be updated. This pr add the
`double-check`which will wait 30s and check again when `op_count=0`. if it
still zero, the script judge the cluster is balanced.
Beside, this pr split the `rebalance process` to
`pegasus_rebalance_cluster.sh` for `pegasus_rolling_update.sh ` and
`pegasus_add_node_list.sh `, user can also uses it directly.
### Note
`pegasus_rolling_update.sh ` one job(replica server) won't execute
`rebalance` cluster, you need use `pegasus_rebalance_cluster.sh` to rebalance
it after only rolling replica server
### What is changed and how it works?
* Split the `rebalance process` to `pegasus_rebalance_cluster`
* Double check after wait 30s when `op_count=0`
### Check List <!--REMOVE the items that are not applicable-->
- Manual test (add detailed scripts or steps below)
(1) deploy the cluster with minos
(2) execute
pegasus_rebalance_cluster.sh/pegasus_rolling_update.sh/pegasus_add_node_list.sh
Related changes
- Need to cherry-pick to the release branch
- Need to be included in the release note
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