Fix spelling mistakes in comments and documentation

product-mixer/component-library/src/main/scala/com/twitter/product_mixer/component_library/pipeline/candidate/ads/CountNumOrganicItems.scala

@@ -20,7 +20,7 @@ trait EstimateNumOrganicItems[Query <: PipelineQuery with AdsQuery] {
  * @note the key difference between [[CountNumOrganicItems]] and [[EstimateNumOrganicItems]] is
  *       that for [[EstimateNumOrganicItems]] we don't have any candidates returned yet, so we can
  *       only guess as to the number of organic items in the result set. In contrast,
- *       [[CountNumOrganicItems]] is used on dependant candidate pipelines where we can scan over
+ *       [[CountNumOrganicItems]] is used on dependent candidate pipelines where we can scan over
  *       the candidate pipelines result set to count the number of organic items.
  */
 trait CountNumOrganicItems[-Query <: PipelineQuery with AdsQuery] {

product-mixer/core/src/main/scala/com/twitter/product_mixer/core/feature/featuremap/FeatureMapSerializer.scala

@@ -55,7 +55,7 @@ private[featuremap] class FeatureMapSerializer() extends JsonSerializer[FeatureM
     gen.writeEndObject()
   }
 
-  // Some features can be very large when stringified, for example when a dependant candidate
+  // Some features can be very large when stringified, for example when a dependent candidate
   // pipeline is used, the entire previous candidate pipeline result is serialized into a feature.
   // This causes significant performance issues when the result is later sent over the wire.
   private def truncateString(input: String): String =

src/java/com/twitter/search/common/util/ml/prediction_engine/ModelLoader.java

@@ -60,7 +60,7 @@ public class ModelLoader implements Runnable {
    *   ${counterPrefix}_num_models:
    *      Number of models currently loaded.
    *   ${counterPrefix}_num_loads:
-   *      Number of succesful model loads.
+   *      Number of successful model loads.
    *   ${counterPrefix}_num_errors:
    *      Number of errors occurred while loading the models.
    */

src/java/com/twitter/search/earlybird/partition/SimpleStreamIndexer.java

@@ -175,7 +175,7 @@ protected ConsumerRecords<K, V> poll() {
 
   protected abstract void validateAndIndexRecord(ConsumerRecord<K, V> record);
 
-  // Shutdown hook which can be called from a seperate thread. Calling consumer.wakeup() interrupts
+  // Shutdown hook which can be called from a separate thread. Calling consumer.wakeup() interrupts
   // the running indexer and causes it to first stop polling for new records before gracefully
   // closing the consumer.
   public void close() {

src/java/com/twitter/search/earlybird/queryparser/HighFrequencyTermPairExtractor.java

@@ -31,7 +31,7 @@
  * opposite value of isPositive of the parent group.
  *
  * I'll try to break it down a bit further. Let's assume "a" and "b" are hf terms, and '
- * "[hf_term_pair a b]" represents querying their co-occurence.
+ * "[hf_term_pair a b]" represents querying their co-occurrence.
  * Query (* a b not_hf) can become (* [hf_term_pair a b] not_hf)
  * Query (+ -a -b -not_hf) can become (+ -[hf_term_pair a b] -not_hf)
  * These two rules represent the bulk of the rewrites that this class makes.

tweetypie/common/src/scala/com/twitter/tweetypie/util/logging/AlertableExceptionLoggingFilter.scala

@@ -7,7 +7,7 @@ import ch.qos.logback.core.spi.FilterReply
 import com.twitter.tweetypie.serverutil.ExceptionCounter.isAlertable
 
 /**
- * This class is currently being used by logback to log alertable exceptions to a seperate file.
+ * This class is currently being used by logback to log alertable exceptions to a separate file.
  *
  * Filters do not change the log levels of individual loggers. Filters filter out specific messages
  * for specific appenders. This allows us to have a log file with lots of information you will

tweetypie/common/src/thrift/com/twitter/tweetypie/tweet_service.thrift

@@ -1804,7 +1804,7 @@ struct PostTweetRequest {
    * time, tweetypie would delegate to creative container service.
    *
    * go/creatives-containers-tdd
-   * Please note that this id is never publically shared with clients, its only used for
+   * Please note that this id is never publicly shared with clients, its only used for
    * internal purposes.
    */
   35: optional i64 underlying_creatives_container_id (personalDataType = 'TweetId')

tweetypie/server/src/main/scala/com/twitter/tweetypie/serverutil/logcachewrites/TweetCacheWrite.scala

@@ -27,7 +27,7 @@ case class TweetCacheWrite(
    *      If the tweet id is a snowflake id, this is an offset since tweet creation.
    *      If it is not a snowflake id, then this is a Unix epoch time in
    *      milliseconds. (The idea is that for most tweets, this encoding will make
-   *      it easier to see the interval between events and whether it occured soon
+   *      it easier to see the interval between events and whether it occurred soon
    *      after tweet creation.)
    *  - Cache action ("set", "add", "replace", "cas", "delete")
    *  - Base64-encoded Cached[CachedTweet] struct

twml/twml/argument_parser.py

@@ -411,15 +411,15 @@ def get_trainer_parser():
     action=parse_comma_separated_list(element_type=float),
     default=None,
     help="Required for 'piecewise_constant_values' learning_rate_decay. "
-         "A list of comma seperated floats or ints that specifies the values "
+         "A list of comma separated floats or ints that specifies the values "
          "for the intervals defined by boundaries. It should have one more "
          "element than boundaries.")
   parser_piecewise_constant.add_argument(
     "--piecewise_constant_boundaries",
     action=parse_comma_separated_list(element_type=int),
     default=None,
     help="Required for 'piecewise_constant_values' learning_rate_decay. "
-         "A list of comma seperated integers, with strictly increasing entries.")
+         "A list of comma separated integers, with strictly increasing entries.")
 
   # Create the parser for the "inverse_learning_rate_decay_fn"
   parser_inverse = subparsers.add_parser('inverse_learning_rate_decay',