cdmikechen commented on a change in pull request #1119: Fix:
HoodieCommitMetadata only show first commit insert rows.
URL: https://github.com/apache/incubator-hudi/pull/1119#discussion_r361044029
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File path:
hudi-common/src/main/java/org/apache/hudi/common/model/HoodieCommitMetadata.java
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@@ -175,7 +175,9 @@ public long fetchTotalInsertRecordsWritten() {
long totalInsertRecordsWritten = 0;
for (List<HoodieWriteStat> stats : partitionToWriteStats.values()) {
for (HoodieWriteStat stat : stats) {
- if (stat.getPrevCommit() != null &&
stat.getPrevCommit().equalsIgnoreCase("null")) {
Review comment:
@n3nash
I think the processing logic of this method is the same as that of
`fetchTotalFilesUpdated`
```
public long fetchTotalUpdateRecordsWritten() {
long totalUpdateRecordsWritten = 0;
for (List<HoodieWriteStat> stats : partitionToWriteStats.values()) {
for (HoodieWriteStat stat : stats) {
totalUpdateRecordsWritten += stat.getNumUpdateWrites();
}
}
return totalUpdateRecordsWritten;
}
```
Let me give you an example in my test. I create a hudi data with 3 rows
first, and then insert a row, at last insert a row and delete a row. I print
all method return number and test the number to check.
```java
for (HoodieInstant commit : commits) {
HoodieCommitMetadata commitMetadata =
HoodieCommitMetadata.fromBytes(timeline.getInstantDetails(commit).get(),
HoodieCommitMetadata.class);
JSONObject data = new JSONObject();
data.put("timestamp", commit.getTimestamp());
data.put("fetchTotalBytesWritten",
commitMetadata.fetchTotalBytesWritten());
data.put("fetchTotalFilesInsert",
commitMetadata.fetchTotalFilesInsert());
data.put("fetchTotalFilesUpdated",
commitMetadata.fetchTotalFilesUpdated());
data.put("fetchTotalPartitionsWritten",
commitMetadata.fetchTotalPartitionsWritten());
data.put("fetchTotalRecordsWritten",
commitMetadata.fetchTotalRecordsWritten());
data.put("fetchTotalUpdateRecordsWritten",
commitMetadata.fetchTotalUpdateRecordsWritten());
data.put("fetchTotalInsertRecordsWritten",
commitMetadata.fetchTotalInsertRecordsWritten());
data.put("fetchTotalWriteErrors",
commitMetadata.fetchTotalWriteErrors());
long totalDeleteRecordsWritten= 0;
for (List<HoodieWriteStat> stats :
commitMetadata.getPartitionToWriteStats().values()) {
for (HoodieWriteStat stat : stats) {
if (stat.getPrevCommit() != null) {
totalDeleteRecordsWritten += stat.getNumDeletes();
}
}
}
data.put("fetchTotalDeleteRecordsWritten", totalDeleteRecordsWritten);
datas.add(data);
}
log.debug("datas = {}", datas);
```
If I use old if `(stat.getPrevCommit() != null &&
stat.getPrevCommit().equalsIgnoreCase("null"))` it will print:
```json
[
{
"fetchTotalBytesWritten": 435258,
"fetchTotalDeleteRecordsWritten": 1,
"fetchTotalFilesInsert": 0,
"fetchTotalFilesUpdated": 1,
"fetchTotalInsertRecordsWritten": 0,
"fetchTotalPartitionsWritten": 1,
"fetchTotalRecordsWritten": 4,
"fetchTotalUpdateRecordsWritten": 0,
"fetchTotalWriteErrors": 0,
"timestamp": "20190923172508"
},
{
"fetchTotalBytesWritten": 435227,
"fetchTotalDeleteRecordsWritten": 0,
"fetchTotalFilesInsert": 0,
"fetchTotalFilesUpdated": 1,
"fetchTotalInsertRecordsWritten": 0,
"fetchTotalPartitionsWritten": 1,
"fetchTotalRecordsWritten": 4,
"fetchTotalUpdateRecordsWritten": 0,
"fetchTotalWriteErrors": 0,
"timestamp": "20190923160439"
},
{
"fetchTotalBytesWritten": 435478,
"fetchTotalDeleteRecordsWritten": 0,
"fetchTotalFilesInsert": 1,
"fetchTotalFilesUpdated": 0,
"fetchTotalInsertRecordsWritten": 3,
"fetchTotalPartitionsWritten": 1,
"fetchTotalRecordsWritten": 3,
"fetchTotalUpdateRecordsWritten": 0,
"fetchTotalWriteErrors": 0,
"timestamp": "20190923160340"
}
]
```
If I use modified if `(stat.getPrevCommit() != null)` it will print:
```json
[
{
"fetchTotalBytesWritten": 435258,
"fetchTotalDeleteRecordsWritten": 1,
"fetchTotalFilesInsert": 0,
"fetchTotalFilesUpdated": 1,
"fetchTotalInsertRecordsWritten": 1,
"fetchTotalPartitionsWritten": 1,
"fetchTotalRecordsWritten": 4,
"fetchTotalUpdateRecordsWritten": 0,
"fetchTotalWriteErrors": 0,
"timestamp": "20190923172508"
},
{
"fetchTotalBytesWritten": 435227,
"fetchTotalDeleteRecordsWritten": 0,
"fetchTotalFilesInsert": 0,
"fetchTotalFilesUpdated": 1,
"fetchTotalInsertRecordsWritten": 1,
"fetchTotalPartitionsWritten": 1,
"fetchTotalRecordsWritten": 4,
"fetchTotalUpdateRecordsWritten": 0,
"fetchTotalWriteErrors": 0,
"timestamp": "20190923160439"
},
{
"fetchTotalBytesWritten": 435478,
"fetchTotalDeleteRecordsWritten": 0,
"fetchTotalFilesInsert": 1,
"fetchTotalFilesUpdated": 0,
"fetchTotalInsertRecordsWritten": 3,
"fetchTotalPartitionsWritten": 1,
"fetchTotalRecordsWritten": 3,
"fetchTotalUpdateRecordsWritten": 0,
"fetchTotalWriteErrors": 0,
"timestamp": "20190923160340"
}
]
```
I guess the person who originally wrote this method copied the
`fetchTotalFilesInsert` method at that time, but he forgot that the processing
logic of adding files is different from that adding data in files.
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