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https://issues.apache.org/jira/browse/PHOENIX-6437?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17338703#comment-17338703
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ASF GitHub Bot commented on PHOENIX-6437:
-----------------------------------------
ankitjain64 commented on a change in pull request #1219:
URL: https://github.com/apache/phoenix/pull/1219#discussion_r625451166
##########
File path:
phoenix-core/src/main/java/org/apache/phoenix/replication/SystemCatalogWALEntryFilter.java
##########
@@ -103,18 +104,20 @@ private boolean isTenantRowCellSystemChildLink(final Cell
cell) {
if (!isTenantRowCell) {
boolean isChildLink = CellUtil.matchingQualifier(
cell, PhoenixDatabaseMetaData.LINK_TYPE_BYTES);
- if (isChildLink) {
- if (CellUtil.matchingValue(cell, CHILD_TABLE_BYTES)) {
+ // Check if cell is of type LINK_TYPE with value 4 or DeleteFamily
+ if ((isChildLink && CellUtil.matchingValue(cell, CHILD_TABLE_BYTES)) ||
+ CellUtil.isDeleteFamily(cell) ) {
Review comment:
To replicate a delete marker we are using two checks.
1. The cell is of type `DeleteFamily`.
2. The length for `COLUMN_NAME` is greater than `0`. (For tenant views
column_name is populated with tenant_id which is not the case for global views.)
One may argue that the above two checks are also true for delete markers of
column rows and we may over-replicate that as well. But, we are avoiding all
those scenarios by doing the above filtering only for the mutations belonging
to `SYSTEM.CHILD_LINK` table. With 4.15+ we are assured that
`SYSTEM.CHILD_LINK` table only stores parent-child linking rows with
`LINK_TYPE=4`. Let me know if you still feel we are missing any scenario. Thanks
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> Delete marker for parent-child rows does not get replicated via
> SystemCatalogWALEntryFilter
> -------------------------------------------------------------------------------------------
>
> Key: PHOENIX-6437
> URL: https://issues.apache.org/jira/browse/PHOENIX-6437
> Project: Phoenix
> Issue Type: Bug
> Components: core
> Reporter: Ankit Jain
> Assignee: Ankit Jain
> Priority: Major
>
> As part of PHOENIX-3639 SystemCatalogWALEntryFilter was introduced to
> replicate tenant owned rows from system.catalog and ignore the non-tenant
> rows. During recent testing it was realized that delete markers for
> parent-child rows does not get replicated. As part of this Jira we want to
> fix that.
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