SERVER-62336 Tolerate SnapshotTooOld errors in dbCheck testing

(cherry picked from commit ee111876a65ca5f5fdb70c3a0e26eeb57ca79cdd)

1 files changed, 7 insertions, 2 deletions

diff --git a/jstests/hooks/run_dbcheck_background.js b/jstests/hooks/run_dbcheck_background.js
index 4abfb414f7c..23ae5e5bd83 100644
--- a/jstests/hooks/run_dbcheck_background.js
+++ b/jstests/hooks/run_dbcheck_background.js
@@ -95,9 +95,14 @@ function runBackgroundDbCheck(hosts) {
         })
     ];
     nodes.forEach((node) => {
-        // Assert no errors (i.e., found inconsistencies). Allow warnings.
+        // Assert no errors (i.e., found inconsistencies). Allow warnings. Tolerate SnapshotTooOld
+        // errors, as they can occur if the primary is slow enough processing a batch that the
+        // secondary is unable to obtain the timestamp the primary used.
         const healthlog = node.getDB('local').system.healthlog;
-        let errs = healthlog.find({"severity": "error"});
+        // Regex matching strings that start without "SnapshotTooOld"
+        const regexStringWithoutSnapTooOld = /^((?!^SnapshotTooOld).)*$/;
+        let errs =
+            healthlog.find({"severity": "error", "data.error": regexStringWithoutSnapTooOld});
         if (errs.hasNext()) {
             const err = "dbCheck found inconsistency on " + node.host;
             jsTestLog(err + ". Errors: ");