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Jeff Jirsa commented on CASSANDRA-13556: ---------------------------------------- That sounds very much like corruption caused by CASSANDRA-13004 - did you recently add or remove any columns from that table? > Corrupted SSTables > ------------------ > > Key: CASSANDRA-13556 > URL: https://issues.apache.org/jira/browse/CASSANDRA-13556 > Project: Cassandra > Issue Type: Bug > Components: Compaction > Environment: CentOS Linux release 7.3.1611 (Core) > openjdk version "1.8.0_121" > OpenJDK Runtime Environment (build 1.8.0_121-b13) > OpenJDK 64-Bit Server VM (build 25.121-b13, mixed mode) > Python cassandra (DataStax) driver v3.6.0 > Reporter: Ihor Prokopov > Priority: Critical > Fix For: 3.9 > > > After 3 month of working, we noticed that number of compaction tasks were > growing (~600 pending tasks). SStables verification shows that some of them > were corrupted. Repairing didn't help (it was crashing with error). > Also some of requests (f.e. select * from fetcher where > domain=8289511971670945261 and uri=-5417197141545933706; ) fails with next > error: > {color:red} > Traceback (most recent call last): > File "/var/cassandra/apache-cassandra-3.9/bin/cqlsh.py", line 1264, in > perform_simple_statement > result = future.result() > File > "/var/cassandra/apache-cassandra-3.9/bin/../lib/cassandra-driver-internal-only-3.5.0.post0-d8d0456.zip/cassandra-driver-3.5.0.post0-d8d0456/cassandra/cluster.py", > line 3650, in result > raise self._final_exception > error: unpack requires a string argument of length 4 > {color} > Table chema: > {quote} > CREATE TABLE fetcher ( > domain bigint, > uri bigint, > date date, > content_length int, > elapsed float, > encoding text, > fetched_time bigint, > flinks frozen<set<tuple<bigint, bigint»>, > flinks_count int, > html_fingerprint bigint, > indexed boolean, > adult boolean, > kws_count int, > lang_id int, > last_updated bigint, > redirect_url tuple<bigint, bigint>, > revisit_date date, > revisit_interval int, > status_code int, > tokens_fingerprint bigint, > uris frozen<set<bigint», > url text, > PRIMARY KEY (domain, uri, date) > ) WITH CLUSTERING ORDER BY (uri ASC, date DESC) > AND bloom_filter_fp_chance = 0.1 > AND caching = \{'keys': 'ALL', 'rows_per_partition': 'NONE'} > AND comment = 'fetcher history' > AND compaction = \{'class': > 'org.apache.cassandra.db.compaction.LeveledCompactionStrategy', > 'sstable_size_in_mb': '256', > 'tombstone_threshold': '.2'} > AND compression = \{'chunk_length_in_kb': '64', > 'class': > 'org.apache.cassandra.io.compress.LZ4Compressor'} > AND crc_check_chance = 1.0 > AND dclocal_read_repair_chance = 0.1 > AND default_time_to_live = 0 > AND gc_grace_seconds = 864000 > AND max_index_interval = 2048 > AND memtable_flush_period_in_ms = 0 > AND min_index_interval = 128 > AND read_repair_chance = 0.5 > AND speculative_retry = '99PERCENTILE'; > {quote} > Corrupted > [SSTable|https://drive.google.com/file/d/0B4ZaUOv0G9oMcHpERTdlb3ozSVk/view?usp=sharing]. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org