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changeset 127:a71e4272d808

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cut way down on some no-op patches that were causing file rewrites/rereads
author drewp@bigasterisk.com
date Sat, 27 May 2023 17:38:13 -0700
parents 1780382477ed
children bf5353908f3c
files rdfdb/service.py
diffstat 1 files changed, 6 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/rdfdb/service.py	Sat May 27 17:36:51 2023 -0700
+++ b/rdfdb/service.py	Sat May 27 17:38:13 2023 -0700
@@ -68,6 +68,12 @@
             return
         log.debug("%r sends patch to us: %s", self, data[:64])
         p = Patch(jsonRepr=data)
+
+        # this is very important- I caught clients piling up dozens of retries, causing
+        # us to rewrite files then notice them, etc. Problem may not be fully solved.
+        if p.isNoop():
+            return
+
         try:
             await self.db.patch(p, sender=self.connectionId)
         except ValueError as e: