mirror of
https://github.com/zrepl/zrepl.git
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30cdc1430e
This commit
- adds a configuration in which no step holds, replication cursors, etc. are created
- removes the send.step_holds.disable_incremental setting
- creates a new config option `replication` for active-side jobs
- adds the replication.protection.{initial,incremental} settings, each
of which can have values
- `guarantee_resumability`
- `guarantee_incremental`
- `guarantee_nothing`
(refer to docs/configuration/replication.rst for semantics)
The `replication` config from an active side is sent to both endpoint.Sender and endpoint.Receiver
for each replication step. Sender and Receiver then act accordingly.
For `guarantee_incremental`, we add the new `tentative-replication-cursor` abstraction.
The necessity for that abstraction is outlined in https://github.com/zrepl/zrepl/issues/340.
fixes https://github.com/zrepl/zrepl/issues/340
81 lines
2.7 KiB
Go
81 lines
2.7 KiB
Go
package tests
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import (
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"fmt"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/zrepl/zrepl/endpoint"
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"github.com/zrepl/zrepl/platformtest"
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"github.com/zrepl/zrepl/zfs"
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)
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func CreateReplicationCursor(ctx *platformtest.Context) {
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platformtest.Run(ctx, platformtest.PanicErr, ctx.RootDataset, `
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CREATEROOT
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+ "foo bar"
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+ "foo bar@1 with space"
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R zfs bookmark "${ROOTDS}/foo bar@1 with space" "${ROOTDS}/foo bar#1 with space"
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+ "foo bar@2 with space"
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R zfs bookmark "${ROOTDS}/foo bar@2 with space" "${ROOTDS}/foo bar#2 with space"
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+ "foo bar@3 with space"
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R zfs bookmark "${ROOTDS}/foo bar@3 with space" "${ROOTDS}/foo bar#3 with space"
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- "foo bar@3 with space"
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`)
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jobid := endpoint.MustMakeJobID("zreplplatformtest")
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ds, err := zfs.NewDatasetPath(ctx.RootDataset + "/foo bar")
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if err != nil {
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panic(err)
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}
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fs := ds.ToString()
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checkCreateCursor := func(createErr error, c endpoint.Abstraction, references zfs.FilesystemVersion) {
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assert.NoError(ctx, createErr)
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expectName, err := endpoint.ReplicationCursorBookmarkName(fs, references.Guid, jobid)
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assert.NoError(ctx, err)
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require.Equal(ctx, expectName, c.GetFilesystemVersion().Name)
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}
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snap := fsversion(ctx, fs, "@1 with space")
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book := fsversion(ctx, fs, "#1 with space")
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book3 := fsversion(ctx, fs, "#3 with space")
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// create first cursor
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cursorOfSnap, err := endpoint.CreateReplicationCursor(ctx, fs, snap, jobid)
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checkCreateCursor(err, cursorOfSnap, snap)
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// check CreateReplicationCursor is idempotent (for snapshot target)
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cursorOfSnapIdemp, err := endpoint.CreateReplicationCursor(ctx, fs, snap, jobid)
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checkCreateCursor(err, cursorOfSnap, snap)
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// check CreateReplicationCursor is idempotent (for bookmark target of snapshot)
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cursorOfBook, err := endpoint.CreateReplicationCursor(ctx, fs, book, jobid)
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checkCreateCursor(err, cursorOfBook, snap)
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// ... for target = non-cursor bookmark
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_, err = endpoint.CreateReplicationCursor(ctx, fs, book3, jobid)
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assert.Equal(ctx, zfs.ErrBookmarkCloningNotSupported, err)
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// ... for target = replication cursor bookmark to be created
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cursorOfCursor, err := endpoint.CreateReplicationCursor(ctx, fs, cursorOfSnapIdemp.GetFilesystemVersion(), jobid)
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checkCreateCursor(err, cursorOfCursor, cursorOfSnap.GetFilesystemVersion())
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snapProps, err := zfs.ZFSGetFilesystemVersion(ctx, snap.FullPath(fs))
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if err != nil {
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panic(err)
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}
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bm, err := endpoint.GetMostRecentReplicationCursorOfJob(ctx, fs, jobid)
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if err != nil {
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panic(err)
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}
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if bm.CreateTXG != snapProps.CreateTXG {
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panic(fmt.Sprintf("createtxgs do not match: %v != %v", bm.CreateTXG, snapProps.CreateTXG))
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}
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if bm.Guid != snapProps.Guid {
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panic(fmt.Sprintf("guids do not match: %v != %v", bm.Guid, snapProps.Guid))
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}
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}
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