sodonnel commented on PR #3764:
URL: https://github.com/apache/ozone/pull/3764#issuecomment-1254265893
I grepped the code, and there are a couple of EC input classes that have the
same check logic:
```
grep -R "pos < 0 || pos >= " *
hadoop-hdds/client/src/main/java/org/apache/hadoop/ozone/client/io/ECBlockInputStream.java:
if (pos < 0 || pos >= getLength()) {
hadoop-hdds/client/src/main/java/org/apache/hadoop/ozone/client/io/ECBlockReconstructedInputStream.java:
if (pos < 0 || pos >= getLength()) {
hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/ChunkInputStream.java:
if (pos < 0 || pos >= length) {
hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockInputStream.java:
if (pos < 0 || pos >= length) {
hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/node_modules/.pnpm/[email protected]/node_modules/es5-ext/string/#/code-point-at/shim.js:
if (pos < 0 || pos >= length) return undefined;
hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/node_modules/es5-ext/string/#/code-point-at/shim.js:
if (pos < 0 || pos >= length) return undefined;
sodonnell@sodonnell-MBP16 ozone2 % vi
hadoop-ozone/recon/src/main/resources/webapps/recon/ozone-recon-web/node_modules/es5-ext/string/#/code-point-at/shim.js
```
Interestingly, some imported JS modules also the same logic.
I am trying to think if its valid or not to throw EOF when you seek to
`length`. If you have a file of length 1, and are at position zero, if you read
1 byte, you are at position 1. If you read again you will get EOF. So based on
that logic, seeking to position 1 should probably not throw EOF.
It would be good to fix the EC classes as part of this PR too.
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